{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.dibutylamine","code":"thing-q1209336","url":"https://ver.cy/models/thing/q1209336/","name":"dibutylamine","alternateNames":[],"kind":"thing","status":"published","version":"0.1.0-research.1","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.MAT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"Dibutylamine ordinarily denotes di-n-butylamine, a secondary aliphatic amine with formula C8H19N in which nitrogen is bonded to two straight-chain butyl groups and one hydrogen.","purpose":"Enable an agent to recognise dibutylamine, assess the identity and condition of a particular sample, and determine its suitability for a proposed use under documented constraints.","scope":{"in":["Di-n-butylamine molecular identity and identifier reconciliation","Sample grade, assay, water content and relevant impurities","Physical properties with measurement conditions and provenance","Free-base state, protonation and application-relevant reactivity","Substance hazards, exposure criteria and jurisdiction-specific identity"],"out":["Branched dibutylamine isomers as independently identified substances","Dibutylammonium salts as separate substances","Finished formulations containing dibutylamine","Manufacturing processes and reaction equipment","Facility operating procedures and individual exposure histories"],"boundaries":[]},"distinguishingFeatures":["Require two unbranched butyl groups attached to the same nitrogen; a shared molecular formula does not distinguish branched isomers.","Require a secondary amine with one nitrogen-bound hydrogen, distinguishing it from primary butylamine and tertiary tributylamine.","Reconcile the proposed identity with CAS 111-92-2, PubChem CID 8148 and connectivity CCCCNCCCC; identifier disagreement requires investigation. [PubChem](https://pubchem.ncbi.nlm.nih.gov/compound/8148)","Distinguish the neutral free base from a protonated dibutylammonium species by charge, counterion and sample conditions.","Distinguish neat dibutylamine from a solution or formulation by measured assay and declared additional constituents."],"structure":{"bundles":[{"id":"dibutylamine-identity","name":"Dibutylamine identity","description":"Resolve the registry name to a specific molecular structure and distinguish neighbouring substances.","layers":[{"id":"molecular-connectivity","name":"Molecular connectivity","description":"Establish the intended nitrogen substitution and carbon-chain structure.","findings":[{"id":"di-n-butylamine-target","name":"Di-n-butylamine target","description":"PubChem identifies dibutylamine as the C8H19N structure CCCCNCCCC, with CAS 111-92-2 and CID 8148; use this as the proposed registry interpretation pending registry provenance confirmation. [PubChem](https://pubchem.ncbi.nlm.nih.gov/compound/8148)","questions":[{"text":"Does the registry's originating record identify the nitrogen bearing two straight-chain butyl groups?","id":"di-n-butylamine-target-q01","kind":"provenance"},{"text":"What structural evidence distinguishes the sample from branched dibutylamine isomers?","id":"di-n-butylamine-target-q02","kind":"definition"}]}]},{"id":"identity-boundaries","name":"Identity boundaries","description":"Keep free base, salts and product representations distinct.","findings":[{"id":"free-base-and-product-boundary","name":"Free-base and product boundary","description":"A record must distinguish dibutylamine molecular identity from protonated derivatives and from commercial materials containing it.","questions":[{"text":"Does the supplied material represent neutral dibutylamine, a salt with a named counterion, or a mixture?","id":"free-base-and-product-boundary-q01","kind":"boundary"},{"text":"Which verified EC and inventory records refer specifically to the proposed free-base identity?","id":"free-base-and-product-boundary-q02","kind":"provenance"}]}]}]},{"id":"dibutylamine-lot-quality","name":"Dibutylamine lot quality","description":"Represent the composition and analytical fitness of an actual dibutylamine sample.","layers":[{"id":"assay-and-grade","name":"Assay and grade","description":"Interpret purity claims using their actual analytical basis.","findings":[{"id":"usable-dibutylamine-content","name":"Usable dibutylamine content","description":"Record assay method, reporting basis and lot evidence before calculating active dibutylamine content.","questions":[{"text":"Is the reported assay mass purity, chromatographic area purity or a titration-based amine content?","id":"usable-dibutylamine-content-q01","kind":"measurement"},{"text":"Could other basic constituents contribute to the reported titration result?","id":"usable-dibutylamine-content-q02","kind":"boundary"}]}]},{"id":"water-and-related-impurities","name":"Water and related impurities","description":"Track constituents that can affect dibutylamine use despite an acceptable headline assay.","findings":[{"id":"application-specific-impurity-acceptance","name":"Application-specific impurity acceptance","description":"Treat water, other amines and residual solvents as analytes to assess where relevant, without assuming they occur in every lot.","questions":[{"text":"What are the measured water content and relevant impurity concentrations, including detection limits?","id":"application-specific-impurity-acceptance-q01","kind":"measurement"},{"text":"Which impurity thresholds determine whether this lot is suitable for its intended use?","id":"application-specific-impurity-acceptance-q02","kind":"action"}]}]}]},{"id":"dibutylamine-physical-state","name":"Dibutylamine physical state","description":"Connect observed phase and quantitative physical properties to sample conditions.","layers":[{"id":"phase-and-transition-evidence","name":"Phase and transition evidence","description":"Record phase observations and applicable transition measurements.","findings":[{"id":"condition-qualified-phase","name":"Condition-qualified phase","description":"Maintain melting or freezing and boiling data separately from the observed state of a particular sample.","questions":[{"text":"What phase is observed at the sample's recorded temperature, pressure and composition?","id":"condition-qualified-phase-q01","kind":"measurement"},{"text":"Which sourced melting and boiling measurements apply, and what pressure and purity were reported?","id":"condition-qualified-phase-q02","kind":"provenance"}]}]},{"id":"density-volatility-and-partitioning","name":"Density, volatility and partitioning","description":"Support quantity conversion and interpretation of vapour or aqueous contact.","findings":[{"id":"condition-matched-property-use","name":"Condition-matched property use","description":"Use density and vapour-pressure data at relevant temperatures; qualify aqueous behaviour by pH and chemical form.","questions":[{"text":"Which density and vapour-pressure measurements cover the proposed operating temperature?","id":"condition-matched-property-use-q01","kind":"measurement"},{"text":"Does an aqueous solubility value describe the neutral free base or include protonation under the measurement conditions?","id":"condition-matched-property-use-q02","kind":"boundary"}]}]}]},{"id":"dibutylamine-chemical-behaviour","name":"Dibutylamine chemical behaviour","description":"Represent the consequences of the secondary-amine structure for a proposed use.","layers":[{"id":"protonation-and-reagent-role","name":"Protonation and reagent role","description":"Separate free-base availability from total dibutylamine-derived material.","findings":[{"id":"available-free-base","name":"Available free base","description":"Assess protonation and intended nitrogen-centred reactivity using the actual solvent and reactants.","questions":[{"text":"What solvent, acid content and equilibrium evidence determine the available neutral dibutylamine fraction?","id":"available-free-base-q01","kind":"measurement"},{"text":"Does the proposed use depend on basicity, nucleophilic reaction or another experimentally supported role?","id":"available-free-base-q02","kind":"action"}]}]},{"id":"reactive-contact-and-transformation","name":"Reactive contact and transformation","description":"Assess incompatible contact and unwanted chemical conversion.","findings":[{"id":"secondary-amine-transformation-screen","name":"Secondary-amine transformation screen","description":"Require substance-specific evidence for incompatible contacts and evaluate whether the intended context warrants investigation of N-nitrosodibutylamine formation.","questions":[{"text":"Which documented incompatibilities apply to the actual acids, oxidants or other chemicals present?","id":"secondary-amine-transformation-screen-q01","kind":"provenance"},{"text":"Are nitrosating conditions plausible, and what evidence determines whether nitrosamine testing or controls are needed?","id":"secondary-amine-transformation-screen-q02","kind":"action"}]}]}]},{"id":"dibutylamine-use-constraints","name":"Dibutylamine use constraints","description":"Tie hazard, exposure and regulatory evidence to the intended handling context.","layers":[{"id":"hazard-and-ignition-evidence","name":"Hazard and ignition evidence","description":"Resolve substance hazards and condition-dependent ignition concerns.","findings":[{"id":"applicable-hazard-record","name":"Applicable hazard record","description":"Record current classification evidence and method-qualified flash-point data for the relevant substance or supplied composition.","questions":[{"text":"Which current authoritative classification and supplier safety data apply to this identity, concentration and jurisdiction?","id":"applicable-hazard-record-q01","kind":"provenance"},{"text":"What flash-point method and value support assessment of the proposed temperature and ignition-source conditions?","id":"applicable-hazard-record-q02","kind":"measurement"}]}]},{"id":"exposure-and-disposition","name":"Exposure and disposition","description":"Connect applicable exposure criteria and material status to permitted next actions.","findings":[{"id":"evidence-based-handling-decision","name":"Evidence-based handling decision","description":"Keep occupational exposure limits, recommended guidelines and transport or waste classifications distinct, with explicit applicability.","questions":[{"text":"Which dibutylamine exposure criteria apply locally, with what averaging periods, route annotations and legal status?","id":"evidence-based-handling-decision-q01","kind":"provenance"},{"text":"What verified controls and transport or waste determinations are required for this quantity, composition and intended disposition?","id":"evidence-based-handling-decision-q02","kind":"action"}]}]}]},{"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.","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.","questions":[{"text":"Which of these check these first hold for the sense of dibutylamine this model covers, and on what evidence?","id":"evidence-confidence-notes-q01","kind":"provenance"}]},{"id":"evidence-identifiers","name":"Identifiers and schemes","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these identifiers and schemes hold for the sense of dibutylamine this model covers, and on what evidence?","id":"evidence-identifiers-q01","kind":"provenance"}]},{"id":"evidence-standards-and-regulation","name":"Standards and regulation","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these standards and regulation hold for the sense of dibutylamine this model covers, and on what evidence?","id":"evidence-standards-and-regulation-q01","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.","questions":[{"text":"Which of these real-world use hold for the sense of dibutylamine this model covers, and on what evidence?","id":"evidence-real-world-use-q01","kind":"provenance"}]},{"id":"evidence-measurements","name":"Typical measurements","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these typical measurements hold for the sense of dibutylamine this model covers, and on what evidence?","id":"evidence-measurements-q01","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.","questions":[{"text":"Which of these failure modes and hazards hold for the sense of dibutylamine this model covers, and on what evidence?","id":"evidence-failure-modes-and-hazards-q01","kind":"provenance"}]},{"id":"evidence-regional-variation","name":"Regional variation","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these regional variation hold for the sense of dibutylamine this model covers, and on what evidence?","id":"evidence-regional-variation-q01","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.","questions":[{"text":"Which of these neighbouring kinds and how to tell them apart hold for the sense of dibutylamine this model covers, and on what evidence?","id":"evidence-neighbours-q01","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Describe dibutylamine and its industrial uses in general terms.","Report hazards, storage and exposure limits from safety data sheets."],"mustNot":["Store it near oxidizers, acids or ignition sources against safety data sheet guidance.","Handle it without the ventilation and protection the safety data sheet requires.","Release it to drains, soil or waters.","Use it in conditions known to form nitrosamines without controls."],"requiresHuman":["Approving bulk transfer or disposal of the chemical."]},"ethics":{"considerations":["Amine exposure can burn skin and harm workers' lungs.","Spills can pollute water used by communities."],"affectedParties":["Chemical workers","Communities near plants","Emergency responders"]},"owners":{"steward":"The business that holds it; chemical safety authorities regulate supply and use.","roles":[],"masterSystems":["National chemical inventories"]},"relations":[{"target":"Q11173","type":"parent","note":"registry parent class"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.dibutylamine","Wikidata: Q1209336 (https://www.wikidata.org/wiki/Q1209336)"]},"properties":{"applicability":"required","items":["Molecular identity: Proposed identity: di-n-butylamine; formula C8H19N; connectivity CCCCNCCCC","Regulatory identifier alignment: Registry id, CAS number, PubChem CID, verified EC number and jurisdictional inventory records","Dibutylamine assay: Mass fraction %, or explicitly identified analytical area %; method and uncertainty required","Water and impurity profile: Water in mg/kg or mass %; identified impurities in mg/kg or mass %, with detection limits","Physical state: Solid, liquid, vapour or multiphase, with temperature in °C and pressure in kPa","Phase transitions: Melting or freezing range and boiling point in °C; pressure, purity and source required","Density and volatility: Density in kg/m³ at stated temperature; vapour pressure in kPa at stated temperature","Acid-base behaviour: Conjugate-acid pKa with solvent and temperature; pH only for a specified solution","Ignition-related properties: Flash point in °C with test method; other ignition data only when sourced","Hazard and exposure criteria: Classification authority, jurisdiction, revision date, hazard categories and exposure limits in ppm or mg/m³ with averaging periods"]},"recognition":{"applicability":"required","items":["A colourless to pale yellow liquid with a strong fishy, ammonia-like smell.","Containers carry flammable, corrosive and toxic hazard pictograms."]},"capabilities":{"applicability":"required","items":["Reconcile a supplier label and analytical identification with the registered molecular identity.","Accept, reject or quarantine a lot against application-specific assay and impurity requirements.","Estimate dibutylamine quantity from sample mass and assay, or from volume using condition-matched density.","Assess whether temperature, pressure and composition support the proposed storage or transfer conditions.","Screen a proposed use for protonation, incompatible contact and impurity-generation concerns.","Identify missing evidence that prevents a justified handling or use decision."]},"hazards":{"applicability":"required","items":["Flammable vapours.","Skin and eye burns.","Toxicity on inhalation or skin contact."]},"interfaces":{"applicability":"required","items":["Globally Harmonized System of Classification and Labelling of Chemicals (GHS), United Nations."]},"context":{"applicability":"required","items":["Dibutylamine is encountered as a chemical reagent and intermediate in laboratories and industrial chemical manufacture.","It is used to prepare other organic compounds, including substances used in agricultural chemicals and rubber processing.","Its suitability for a particular application depends on documented identity, purity and the requirements of that application."]}},"sources":[{"title":"Wikidata item Q1209336: dibutylamine","url":"https://www.wikidata.org/wiki/Q1209336","note":"identity and sense of the item"},{"title":"Wikipedia: Dibutylamine","url":"https://en.wikipedia.org/wiki/Dibutylamine","note":"general description of the item"}],"openQuestions":["Does the registry's originating identifier confirm di-n-butylamine specifically, and does an existing Vercy model already own that concept?","What verified EC number, inventory entries and current jurisdiction-specific hazard and exposure records apply?","Which primary measurements establish melting point, boiling point, density, vapour pressure and flash point, with sufficient conditions to reconcile conflicting summaries?","Which assay methods and impurity limits are appropriate for the intended grade and use, including discrimination from other amines?","Under the intended storage and use conditions, what evidence establishes stability, compatible contact materials and any need for N-nitrosodibutylamine monitoring?"],"resources":{"spec":"/models/things/publications/thing-q1209336/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q1209336/spec.json"],"providers":["Codex"],"researchStatus":"unreviewed","generatedAt":"2026-09-12T09:09:10Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T10:10:25+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}