{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-12T11:29:12Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 23.1, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a0955f-c5bc-7773-bfe1-406d91d73825\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: N,N-diisopropyltryptamine\nSense to describe: (none recorded)\nDomain code: PHY.MAT\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch", "usd": 0.0, "recall": true }, "codex": { "seconds": 75.5, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a0955f-c5ca-7161-9034-2d0ef157ac5a\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: N,N-diisopropyltryptamine\nRegistry id: vr.tr.n-n-diisopropyltryptamine\nPlane / domain: PHY / PHY.MAT\nRegistry definition: (none recorded)\nNames folde" } }, "enrichment": { "pass": 3, "engine": "claude", "producedAt": "2026-10-06T12:00:00Z", "ingestedAt": "2026-10-06T08:53:39+00:00", "fields": [ "agent_conduct", "ethics", "failure_modes_and_hazards", "owners", "visual_identification" ] }, "gate": { "passed": true, "version": "1.0", "at": "2026-10-07T10:10:28+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q1984429", "registryId": "vr.tr.n-n-diisopropyltryptamine", "name": "N,N-diisopropyltryptamine", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.MAT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q1984429/", "model": { "registry_id": "vr.tr.n-n-diisopropyltryptamine", "name": "N,N-diisopropyltryptamine", "purpose": "Enable an AI agent to identify N,N-diisopropyltryptamine, assess the identity and condition of a material sample, and determine which handling or research actions are supported by evidence and authorization.", "definition": "N,N-Diisopropyltryptamine (DiPT) is a synthetic psychoactive tryptamine whose terminal amino nitrogen bears two isopropyl groups and whose reported psychedelic effects prominently include altered auditory perception.", "scope_statement": "This PHY / PHY.MAT model owns the chemical identity registered as vr.tr.n-n-diisopropyltryptamine, its material forms, sample quality, substance-specific biological evidence, and conditions governing handling; salts are related forms whose composition must be recorded explicitly.", "in_scope": [ "DiPT molecular identity and differentiation from similarly named tryptamines", "Free-base and salt-form identity, composition, purity, and analytical confirmation", "Physical properties and stability under specified conditions", "DiPT-specific pharmacological and toxicological evidence with explicit limitations", "Material handling constraints and jurisdiction-specific regulatory identity" ], "out_of_scope": [ "Independent models of DPT, 5-MeO-DiPT, 4-HO-DiPT, and other substituted tryptamines", "Manufacturing processes and synthesis instructions", "Commercial formulations and products containing DiPT", "Individual exposure episodes, diagnoses, and treatment plans", "Human administration protocols and recreational dosing guidance" ], "distinguishing_features": [ "Require two isopropyl substituents on the side-chain nitrogen; distinguish their branched connectivity from the two straight-chain propyl substituents of N,N-dipropyltryptamine.", "Require the unsubstituted indole ring of DiPT; a 5-methoxy or 4-hydroxy substituent identifies a different compound.", "Use structure-aware identification: DiPT and DPT share the molecular formula C16H24N2, so formula or molecular mass alone cannot distinguish them. References: [DiPT PubChem record](https://pubchem.ncbi.nlm.nih.gov/compound/N_N-Diisopropyltryptamine), [DPT PubChem record](https://pubchem.ncbi.nlm.nih.gov/compound/N_N-Dipropyltryptamine).", "Distinguish the neutral parent from a protonated salt by recording counterion and stoichiometry; a shared DiPT name does not establish identical material composition.", "Treat a label reading DiPT as a claimed identity until analytical evidence establishes the sample's molecular identity." ], "characteristics": [ { "name": "Registry and chemical identity", "kind": "relation", "unit_or_values": "vr.tr.n-n-diisopropyltryptamine; structure-linked external identifiers", "why_it_matters": "Connects the registered thing to chemical records without merging similarly named compounds." }, { "name": "Side-chain nitrogen substitution", "kind": "category", "unit_or_values": "Two isopropyl groups on the tryptamine side-chain nitrogen", "why_it_matters": "Distinguishes DiPT from DPT and other N-substituted tryptamines." }, { "name": "Material form", "kind": "category", "unit_or_values": "Neutral free base; identified salt with counterion and stoichiometry; unresolved form", "why_it_matters": "Determines which formula, assay basis, and physical-property evidence apply." }, { "name": "DiPT content", "kind": "measurement", "unit_or_values": "Mass fraction (%) or concentration (mg/mL), with analytical method and free-base or salt basis", "why_it_matters": "Separates actual DiPT content from nominal sample mass and chromatographic area percentage." }, { "name": "Impurity composition", "kind": "measurement", "unit_or_values": "Identified components in % or mg/kg; unidentified peaks and detection limits", "why_it_matters": "Supports sample acceptance and distinguishes DiPT evidence from effects attributable to other constituents." }, { "name": "Physical state and thermal behavior", "kind": "measurement", "unit_or_values": "Observed phase; transition temperature in °C; pressure in kPa; material form and method", "why_it_matters": "Prevents transferring a salt's melting behavior or an estimated constant to a different material." }, { "name": "Solubility and ionization", "kind": "measurement", "unit_or_values": "Solubility in g/L with solvent, temperature, and pH; pKa with method and conditions", "why_it_matters": "Supports interpretation of solutions, analytical preparation, and form-dependent behavior." }, { "name": "Sample stability", "kind": "state", "unit_or_values": "Within verified specification; changed; unassessed, with storage history and reassay date", "why_it_matters": "Makes continued use depend on evidence about the actual material." }, { "name": "Biological evidence context", "kind": "relation", "unit_or_values": "Endpoint linked to compound identity, study, assay, species, exposure conditions, and uncertainty", "why_it_matters": "Prevents animal or receptor findings from being represented as established human outcomes." }, { "name": "Regulatory applicability", "kind": "state", "unit_or_values": "Verified restriction; verified authorization; unresolved, qualified by jurisdiction, date, form, and activity", "why_it_matters": "Supports an action-specific decision without assuming that one jurisdiction's rules apply elsewhere." } ], "affordances": [ "Resolve DiPT names and identifiers to a verified molecular structure.", "Evaluate whether analytical evidence distinguishes a sample from DPT and ring-substituted DiPT analogues.", "Compare sample content and physical properties on an explicitly matched free-base or salt basis.", "Accept, quarantine, or request reassay of material against a documented specification.", "Retrieve DiPT-specific biological findings while preserving study context and uncertainty.", "Check current authorization and handling requirements for a specified location and activity." ], "agent_conduct": { "may": [ "Summarize published research and the legal status of DiPT in a jurisdiction from official sources.", "Point people to harm-reduction and medical services when they ask about effects or bad reactions." ], "must_not": [ "Assist in making, obtaining, selling or dosing DiPT.", "Advise anyone on how to evade drug laws or testing.", "Encourage use or present it as safe, including its effects on hearing.", "Give it or recommend it to a person without their knowledge or consent." ], "requires_human": [ "Any research use, which requires the licences and ethics approvals the jurisdiction demands." ] }, "ethics": { "considerations": [ "Psychoactive substances can cause serious harm, including lasting effects and dangerous behaviour.", "People who use drugs deserve accurate, non-stigmatizing safety information." ], "affected_parties": [ "People who use drugs", "Their families", "Researchers" ] }, "owners": { "steward": "The licensed laboratory that holds it for research; drug control authorities regulate it where it is controlled.", "master_systems": [] }, "visual_identification": [ "Identified by container label, chemical name and identifier, and certificate of analysis rather than by appearance alone." ], "failure_modes_and_hazards": [ "Unpredictable psychological effects and impaired judgement.", "Auditory disturbances.", "Unknown purity or substitution in illicit supply." ], "what_it_is_for": [ "This compound is encountered in research on psychoactive tryptamines and altered auditory perception.", "It may also occur in forensic or analytical samples, where chemical identity requires laboratory evidence rather than reliance on a supplied name." ], "standards_and_regulation": [ "The Globally Harmonized System of Classification and Labelling of Chemicals, published by the United Nations, provides a framework for classifying and communicating hazards when this compound is supplied as a research chemical.", "The Control of Substances Hazardous to Health Regulations 2002, issued by the United Kingdom government, apply to occupational work with this compound in Great Britain where it presents a health hazard." ] }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q1984429: N,N-diisopropyltryptamine", "url": "https://www.wikidata.org/wiki/Q1984429", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: DiPT", "url": "https://en.wikipedia.org/wiki/DiPT", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "chemical-identity-and-boundaries", "name": "Chemical identity and boundaries", "description": "Establish the exact DiPT structure and its relationship to names, identifiers, and material forms.", "rationale": "Similar tryptamine names and shared molecular formulas make identity errors consequential.", "layers": [ { "id": "parent-structure", "name": "Parent structure", "description": "Recognize the unsubstituted indole-containing tryptamine with two N-isopropyl groups.", "findings": [ { "id": "structure-linked-identity", "name": "Structure-linked identity", "description": "PubChem identifies N,N-diisopropyltryptamine as CID 26903 with formula C16H24N2. External identifiers must resolve to this connectivity. Reference: [PubChem](https://pubchem.ncbi.nlm.nih.gov/compound/N_N-Diisopropyltryptamine).", "questions": [ { "text": "Does the referenced structure place both isopropyl groups on the side-chain nitrogen and leave the indole ring unsubstituted?", "kind": "definition", "id": "structure-linked-identity-q01" }, { "text": "Which read source verifies each synonym, CAS number, PubChem identifier, or EC number, and which chemical form does it describe?", "kind": "provenance", "id": "structure-linked-identity-q02" } ] } ] }, { "id": "analogues-and-salts", "name": "Analogues and salts", "description": "Maintain boundaries between DiPT, constitutional isomers, substituted analogues, and salt forms.", "findings": [ { "id": "identity-boundary-tests", "name": "Identity boundary tests", "description": "Require explicit structural differences for neighbouring compounds and explicit counterion information for salts attributed to DiPT.", "questions": [ { "text": "What evidence excludes DPT, 5-MeO-DiPT, and 4-HO-DiPT from this identification?", "kind": "boundary", "id": "identity-boundary-tests-q01" }, { "text": "Is this record about neutral DiPT or a specified salt, hydrate, or solvate, and how is that form related to the registered parent?", "kind": "definition", "id": "identity-boundary-tests-q02" } ] } ] } ] }, { "id": "sample-authentication-and-content", "name": "Sample authentication and content", "description": "Determine whether a physical sample contains DiPT and whether its composition supports its intended use.", "rationale": "A supplier name or nominal purity cannot establish molecular identity or usable DiPT content.", "layers": [ { "id": "analytical-identification", "name": "Analytical identification", "description": "Link identity claims to methods capable of distinguishing relevant tryptamines.", "findings": [ { "id": "discriminating-analytical-evidence", "name": "Discriminating analytical evidence", "description": "Assess whether spectra, separations, and reference comparisons resolve DiPT identity, including its distinction from same-formula DPT.", "questions": [ { "text": "Which analytical observations establish N-isopropyl rather than N-propyl connectivity?", "kind": "measurement", "id": "discriminating-analytical-evidence-q01" }, { "text": "What authenticated reference material or published reference data support the assignment, and what ambiguity remains?", "kind": "provenance", "id": "discriminating-analytical-evidence-q02" } ] } ] }, { "id": "assay-and-impurities", "name": "Assay and impurities", "description": "Record DiPT content, accompanying constituents, and the basis of reported purity.", "findings": [ { "id": "composition-qualified-assay", "name": "Composition-qualified assay", "description": "Keep DiPT mass fraction, salt mass, water or solvent content, and chromatographic area purity distinguishable.", "questions": [ { "text": "Is the reported assay expressed as neutral DiPT equivalent, identified salt content, or chromatographic area percentage?", "kind": "measurement", "id": "composition-qualified-assay-q01" }, { "text": "Which impurities and unknown components were assessed, with what detection limits and acceptance criteria?", "kind": "measurement", "id": "composition-qualified-assay-q02" } ] } ] } ] }, { "id": "physical-form-and-stability", "name": "Physical form and stability", "description": "Characterize DiPT material under the conditions in which it is measured, stored, or handled.", "rationale": "Form and environmental conditions determine whether published constants and sample specifications are transferable.", "layers": [ { "id": "form-specific-properties", "name": "Form-specific properties", "description": "Attach thermal, solubility, and ionization properties to an identified chemical form.", "findings": [ { "id": "conditioned-property-values", "name": "Conditioned property values", "description": "Require source, method, conditions, and measured-versus-estimated status for DiPT physical constants.", "questions": [ { "text": "Which verified melting, boiling, or decomposition observations apply to this exact DiPT form and at what pressure?", "kind": "measurement", "id": "conditioned-property-values-q01" }, { "text": "Which solubility and pKa values are measured, and what solvent, temperature, and pH conditions qualify them?", "kind": "measurement", "id": "conditioned-property-values-q02" } ] } ] }, { "id": "storage-and-change", "name": "Storage and change", "description": "Relate storage history to demonstrated retention or loss of sample quality.", "findings": [ { "id": "evidence-based-stability", "name": "Evidence-based stability", "description": "Record observed changes and validated storage requirements without presuming a DiPT degradation pathway or shelf life.", "questions": [ { "text": "What DiPT-specific evidence establishes stability under the sample's light, temperature, moisture, and container conditions?", "kind": "provenance", "id": "evidence-based-stability-q01" }, { "text": "Which observed change, elapsed interval, or storage excursion requires reassay or quarantine?", "kind": "action", "id": "evidence-based-stability-q02" } ] } ] } ] }, { "id": "biological-effects-and-evidence", "name": "Biological effects and evidence", "description": "Organize DiPT pharmacology, perceptual-effect claims, and adverse-effect evidence by their evidential basis.", "rationale": "DiPT-specific observations must remain distinguishable from findings about related tryptamines and from unsupported human extrapolations.", "layers": [ { "id": "experimental-pharmacology", "name": "Experimental pharmacology", "description": "Separate receptor or cellular results from whole-animal behavioral evidence.", "findings": [ { "id": "assay-bounded-interpretation", "name": "Assay-bounded interpretation", "description": "A primary study examined DiPT in rat drug-discrimination experiments; such findings require species and endpoint qualification. Reference: [Abuse liability profile of three substituted tryptamines](https://pubmed.ncbi.nlm.nih.gov/21474568/).", "questions": [ { "text": "Which DiPT results concern binding, functional receptor activity, or animal behavior, and how was each measured?", "kind": "measurement", "id": "assay-bounded-interpretation-q01" }, { "text": "Which conclusions are supported within the experiment, and which proposed human effects remain extrapolations?", "kind": "boundary", "id": "assay-bounded-interpretation-q02" } ] } ] }, { "id": "human-effects-and-adverse-outcomes", "name": "Human effects and adverse outcomes", "description": "Evaluate human perceptual and adverse-effect claims with attention to identity confirmation and co-exposures.", "findings": [ { "id": "auditory-and-toxicological-claims", "name": "Auditory and toxicological claims", "description": "Treat reported auditory or pitch-perception changes as claims requiring primary evidence, separately from general psychedelic effects and toxicity.", "questions": [ { "text": "Which primary human observations support auditory or pitch-perception changes, and was the administered or detected substance confirmed as DiPT?", "kind": "provenance", "id": "auditory-and-toxicological-claims-q01" }, { "text": "What adverse outcomes are documented specifically for DiPT, and how do co-exposures, follow-up duration, and missing observations limit interpretation?", "kind": "boundary", "id": "auditory-and-toxicological-claims-q02" } ] } ] } ] }, { "id": "handling-and-regulatory-decisions", "name": "Handling and regulatory decisions", "description": "Connect an identified DiPT material to evidence-backed handling constraints and current activity-specific legal requirements.", "rationale": "Chemical identity alone establishes neither a safe handling specification nor authorization to possess, transfer, or use the material.", "layers": [ { "id": "hazard-and-exposure-controls", "name": "Hazard and exposure controls", "description": "Assess hazard documentation for the actual DiPT form and concentration.", "findings": [ { "id": "qualified-hazard-record", "name": "Qualified hazard record", "description": "Record verified classifications and handling instructions while distinguishing absent data from evidence of low hazard.", "questions": [ { "text": "Which current safety data sheet or authoritative assessment covers this DiPT form, and what evidence supports its GHS classification?", "kind": "provenance", "id": "qualified-hazard-record-q01" }, { "text": "Are substance-specific exposure limits established, and which documented controls govern handling and disposal where evidence is incomplete?", "kind": "action", "id": "qualified-hazard-record-q02" } ] } ] }, { "id": "jurisdiction-and-authorized-activity", "name": "Jurisdiction and authorized activity", "description": "Resolve legal applicability by place, date, chemical form, and intended operation.", "findings": [ { "id": "current-rule-applicability", "name": "Current rule applicability", "description": "Require current primary legal evidence before deciding whether a particular DiPT activity is authorized; proposals and historical summaries do not establish present status.", "questions": [ { "text": "Which effective legal text covers DiPT, its salts, or an applicable broader chemical class in the relevant jurisdiction on the decision date?", "kind": "provenance", "id": "current-rule-applicability-q01" }, { "text": "What authorization or restriction applies to the proposed possession, analysis, transfer, import, or disposal activity?", "kind": "action", "id": "current-rule-applicability-q02" } ] } ] } ] }, { "id": "evidence-and-external-alignment", "name": "Evidence and external alignment", "description": "What the world already says about this thing, gathered so the model can be checked against it.", "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.", "layers": [ { "id": "reported-evidence", "name": "Reported evidence", "description": "Findings from the breadth pass, kept separate from the structural claims.", "findings": [ { "id": "evidence-confidence-notes", "name": "Check these first", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "This is recall-based information; no sources were consulted.", "Verify registry identifiers and form-specific physical properties before adding them; free-base and salt records must be distinguished.", "Human toxicity, long-term effects, and the frequency of reported auditory effects require source-based assessment; current legal status also needs verification." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of N,N-diisopropyltryptamine this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-kinds", "name": "Kinds and varieties", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Free base", "Hydrochloride salt" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of N,N-diisopropyltryptamine this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-identifiers", "name": "Identifiers and schemes", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ { "scheme": "Common abbreviation", "value_or_pattern": "DiPT", "note": "Distinguishes the unsubstituted indole compound from ring-substituted derivatives such as 5-MeO-DiPT." }, { "scheme": "Systematic chemical nomenclature", "value_or_pattern": "N,N-diisopropyl-2-(1H-indol-3-yl)ethan-1-amine", "note": "Describes the neutral parent compound." }, { "scheme": "Molecular formula", "value_or_pattern": "C16H24N2", "note": "Applies to the neutral free base; the formula alone does not distinguish structural isomers." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of N,N-diisopropyltryptamine this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-real-world-use", "name": "Real-world use", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Research into psychedelic pharmacology and altered auditory perception", "Nonmedical use for psychoactive effects" ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of N,N-diisopropyltryptamine this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-measurements", "name": "Typical measurements", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ { "quantity": "Molar mass of the neutral free base", "typical_range": "244.38", "unit": "g/mol" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of N,N-diisopropyltryptamine this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-failure-modes-and-hazards", "name": "Failure modes and hazards", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Auditory and other perceptual alterations can impair judgment and safe performance of tasks.", "Psychedelic effects can include anxiety, confusion, or distress.", "Misidentification, adulteration, and confusion between free-base and salt forms can make exposure unpredictable." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of N,N-diisopropyltryptamine this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-regional-variation", "name": "Regional variation", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Legal treatment requires jurisdiction-specific checking, including both explicit substance controls and broader analogue or psychoactive-substance provisions." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of N,N-diisopropyltryptamine this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-neighbours", "name": "Neighbouring kinds and how to tell them apart", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ { "name": "Tryptamine", "difference": "Tryptamine has an unsubstituted terminal amino group; DiPT has two isopropyl substituents on that nitrogen." }, { "name": "N,N-Dipropyltryptamine", "difference": "Its nitrogen substituents are straight-chain propyl groups rather than branched isopropyl groups; it has the same molecular formula as DiPT." }, { "name": "5-MeO-DiPT", "difference": "Has an additional methoxy group at position 5 of the indole ring." }, { "name": "4-HO-DiPT", "difference": "Has an additional hydroxy group at position 4 of the indole ring." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of N,N-diisopropyltryptamine this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Which CAS and EC identifiers can be verified for neutral DiPT and its separately identified salt forms without conflating their records?", "Which primary measurements establish form-specific thermal behavior, solubility, pKa, and storage stability, and which commonly repeated values are only estimates?", "Which validated analytical methods distinguish DiPT from DPT in relevant sample matrices and quantify DiPT independently of impurities and counterions?", "What primary human evidence supports auditory effects, their duration and reversibility, and acute or longer-term adverse outcomes attributable specifically to confirmed DiPT?", "Which current GHS classifications, occupational exposure limits, and jurisdiction-specific legal provisions actually apply to the material form and intended activity?" ], "statistics": { "bundles": 6, "layers": 11, "findings": 18, "questions": 28 } }