(RS)-ketamine
Enable an AI agent to recognise (RS)-ketamine, assess the identity and condition of a material sample, and determine which handling or use decisions require further evidence or authorization.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
recalled by Codex without web access - no source was read
Researched by: Codex
Purpose and description
Enable an AI agent to recognise (RS)-ketamine, assess the identity and condition of a material sample, and determine which handling or use decisions require further evidence or authorization.
(RS)-Ketamine is the racemic mixture of the R and S enantiomers of ketamine, a synthetic arylcyclohexylamine whose dissociative anaesthetic effects arise primarily through noncompetitive antagonism of NMDA receptors.
It can be Reconcile a sample's analytical evidence and identifiers with the registered racemate.; Compare assay and property results after aligning material form, conditions and reporting basis.; Flag enantiomeric imbalance, unknown counterions, impurities or storage deviations for review.; Select applicable handling and storage requirements from verified evidence for the material.; Determine whether a proposed possession, transfer or disposal action has the required authorization.; Route product-specific or patient-specific decisions to the corresponding neighbouring model..
Distinguishing features
Require evidence of ketamine molecular identity; a matching trade name or claimed effect does not establish identity.
Require stereochemical evidence supporting a racemic composition; identification as ketamine alone does not distinguish it from an enantiomer-enriched material.
Distinguish free base from a salt using counterion and material-form evidence; do not transfer identifiers or property values between them without qualification.
Distinguish the substance from a preparation containing it by recording other constituents and the basis on which ketamine content is expressed.
Distinguish intrinsic substance identity from sample quality: degradation or contamination changes the sample's suitability without necessarily changing the identity of its remaining ketamine.
Scope
+ Racemic identity and measured proportions of the ketamine enantiomers
+ Chemical identifiers with explicit free-base, salt and stereochemical scope
+ Sample composition, purity, impurities and analytical evidence
+ Physical state, measured properties and stability under stated conditions
+ Substance hazards, storage requirements and jurisdiction-specific handling controls
- Esketamine or arketamine as independently modelled substances
- Finished medicinal products, their excipients, packaging and administration devices
- Clinical diagnosis, patient selection, dosing and treatment protocols
- Manufacturing routes and synthesis instructions
- Ketamine metabolites and biological specimens as separate things
Characteristics
- Stereochemical composition
- R:S molar ratio or enantiomer fractions, with method and uncertainty Tests the defining racemic identity and distinguishes enantiomer-enriched material.
- Material form
- Free base; identified salt; other characterised form; unresolved Determines which identifiers, composition calculations and physical-property evidence apply.
- Identifier assignment
- CAS, PubChem and EC records linked to their exact chemical and stereochemical descriptions Prevents records for racemate, individual enantiomers and salts from being treated as interchangeable.
- Ketamine content
- Mass fraction or concentration, with explicit free-base or salt basis and dry or as-received basis Makes assay values comparable and separates active-substance content from total sample mass.
- Impurity profile
- Identified and unidentified components with concentrations, detection limits and methods Supports quality assessment without assuming that a high overall assay proves acceptable composition.
- Physical state and phase behaviour
- Observed state at specified temperature, pressure and solvent conditions; transitions in °C Links appearance and measured constants to the actual material form and conditions.
- Water and residual-solvent content
- Mass fraction or mg/kg, with analytical method Can affect assay interpretation, storage behaviour and suitability.
- Stability assessment
- Supported within specified conditions; under investigation; failed assessment; unknown Connects storage history and analytical change to decisions about continued use.
- Hazard evidence
- Applicable classification or safety record with material form, jurisdiction, issuer and revision date Keeps hazard decisions tied to evidence for the material actually present.
- Handling authorization
- Verified for stated activity; restricted; prohibited; unresolved, by jurisdiction and date Separates possession, transfer, storage and disposal permissions from chemical identity.
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 6 bundles · 11 layers · 19 findings · 29 questions.
Racemate identity Establish what qualifies as (RS)-ketamine and how that identity is evidenced.
The registered name makes stereochemical composition part of identity rather than an optional annotation.
Molecular identification
Separate ketamine identity from names, labels and structurally related substances.
Ketamine identity evidence
Record structural identification evidence and the limitations of each method.
- Which analytical evidence establishes that the material contains ketamine? definition
- Which reference material, method and original report support that identification? provenance
Racemic composition
Assess whether the sample's stereochemical composition supports the registered identity.
Enantiomer balance
Represent the R:S ratio separately from total chemical purity and avoid inferring racemic composition from an achiral assay.
- What R:S ratio was measured, by which enantioselective method and with what uncertainty? measurement
- Which justified acceptance criterion distinguishes this racemate from an enantiomer-enriched material? boundary
Chemical form and reference scope Connect the registered substance to material forms and correctly scoped external records.
A name shared across free-base, salt and product records can conceal differences that change property interpretation.
Free-base and salt boundary
Identify the actual chemical form and its relationship to this registry entry.
Form assignment
Record whether a sample is free-base ketamine or a specified salt and make any registry linkage explicit.
- Is the material the free base or a salt, and what evidence identifies any counterion and stoichiometry? measurement
- Does the registry represent this salt through a relation to (RS)-ketamine or through an existing separate entry? boundary
Identifier and product linkage
Prevent substance identifiers and preparation names from collapsing distinct entities.
Scoped record matching
Retain the exact entity described by each identifier and treat formulated preparations as containing the substance.
- Which CAS, PubChem and EC records explicitly match the racemate and the stated chemical form? provenance
- Does each linked record describe the substance, a salt, an individual enantiomer or a finished preparation? boundary
Composition and quality Assess how much ketamine is present and what else accompanies it.
Racemic identity alone does not establish purity, grade or suitability for a proposed activity.
Assay and reporting basis
Make ketamine content interpretable across material forms and sample conditions.
Comparable ketamine content
Record assay values with their denominator, chemical-form basis and supporting method.
- What is the measured ketamine content, and is it expressed as free base or salt on a dry or as-received basis? measurement
- Which assay method and reference standard support the result and any conversion between reporting bases? provenance
Impurities and grade
Connect measured non-ketamine components to a documented quality specification.
Sample quality evidence
Distinguish a supplier's grade claim from demonstrated compliance with an applicable specification.
- Which impurities, water and residual solvents were measured, and what remains unidentified or below detection limits? measurement
- Which documented specification supports accepting or rejecting this sample for its proposed use? action
Physical state and stability Represent form-specific physical behaviour and changes during storage.
Property values and stability conclusions are useful only when attached to the relevant ketamine form and conditions.
Conditional physical properties
Qualify observed state and measured constants by chemical form and experimental conditions.
Form-specific property evidence
Keep free-base and salt measurements distinct and preserve the conditions behind reported values.
- What phase, melting behaviour and density are supported for this material form under stated conditions? measurement
- What solubility or boiling-point evidence exists, with solvent, pH, temperature, pressure and any decomposition qualification recorded as applicable? provenance
Storage and change
Relate storage history to evidence of continuing material quality.
Stability-supported condition
Track exposure history, observed changes and the evidence supporting storage or reassessment decisions.
- Which temperature, light, moisture and container conditions are supported by stability evidence for this form? provenance
- Which storage deviation or analytical change requires quarantine, retesting or disposal review? action
Hazards and permitted handling Support evidence-based handling decisions while separating hazard assessment from legal authorization.
Actions involving ketamine require both material-specific safety evidence and activity-specific control checks.
Exposure and hazard evidence
Identify applicable hazard classifications and exposure controls without borrowing unsupported product claims.
Applicable safety record
Associate safety requirements with the exact form, composition and handling activity.
- Which current safety data and GHS classification apply to this form and composition, and who issued them? provenance
- Which exposure limits or documented containment requirements apply to the proposed handling activity, and where is evidence absent? action
Jurisdiction and custody
Evaluate proposed activities against dated legal sources and documented custody.
Activity-specific authorization
Record applicable controls without assuming that permission for one activity authorizes another.
- Which authoritative rules cover racemic ketamine and the stated material form in the relevant jurisdiction on the decision date? provenance
- What authorization, custody records and approved procedures are required for the proposed possession, transfer, storage or disposal? action
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- This account is recalled knowledge; no sources were consulted.
- Verify current regulatory classifications, approved indications and pharmacopoeial editions before operational use.
- Physical constants, purity specifications and hazard classifications must be checked for the particular salt, solid form and formulation; they are not supplied here.
- Which of these check these first hold for the sense of (RS)-ketamine this model covers, and on what evidence? provenance
Kinds and varieties
Recalled without web access and unsourced; every item is a lead to verify.
- Racemic ketamine free base
- Racemic ketamine hydrochloride
- Which of these kinds and varieties hold for the sense of (RS)-ketamine this model covers, and on what evidence? provenance
Identifiers and schemes
Recalled without web access and unsourced; every item is a lead to verify.
- CAS Registry Number - 6740-88-1 - Ketamine free base; salt forms have separate identifiers.
- CAS Registry Number - 1867-66-9 - Ketamine hydrochloride.
- Molecular formula - C13H16ClNO - Free-base composition; does not distinguish enantiomers.
- Chemical nomenclature - (RS)-2-(2-chlorophenyl)-2-(methylamino)cyclohexan-1-one - The RS designation specifies the racemate.
- Which of these identifiers and schemes hold for the sense of (RS)-ketamine this model covers, and on what evidence? provenance
Standards and regulation
Recalled without web access and unsourced; every item is a lead to verify.
- United States Pharmacopeia-National Formulary, issued by USP: Ketamine Hydrochloride and Ketamine Hydrochloride Injection monographs specify pharmaceutical quality requirements.
- Which of these standards and regulation hold for the sense of (RS)-ketamine this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Human anaesthesia and procedural sedation.
- Veterinary anaesthesia.
- Analgesia in clinical settings.
- Treatment of depression in some clinical settings, with authorization and off-label status depending on jurisdiction and product.
- Research on NMDA receptor function and dissociative states.
- Which of these real-world use hold for the sense of (RS)-ketamine this model covers, and on what evidence? provenance
Typical measurements
Recalled without web access and unsourced; every item is a lead to verify.
- Molar mass of ketamine free base - 237.73 - g/mol
- Molar mass of anhydrous ketamine hydrochloride - 274.19 - g/mol
- Enantiomeric composition of the racemate - 50 R : 50 S - mole percent
- Which of these typical measurements hold for the sense of (RS)-ketamine this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Dissociation, impaired coordination and altered perception can cause accidents and impair judgment.
- Acute effects can include agitation, hallucinations, nausea and increases in blood pressure and heart rate.
- Respiratory depression and airway complications can occur, particularly with other sedating substances.
- Repeated nonmedical use can produce dependence and serious urinary tract injury.
- Confusing free-base and hydrochloride mass, formulation strength or route of administration can cause dosing errors.
- Which of these failure modes and hazards hold for the sense of (RS)-ketamine this model covers, and on what evidence? provenance
Regional variation
Recalled without web access and unsourced; every item is a lead to verify.
- Controlled-substance classification, prescribing restrictions and storage requirements vary by jurisdiction.
- Approved indications and available formulations differ between countries and between human and veterinary practice.
- Which of these regional variation hold for the sense of (RS)-ketamine this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- Esketamine - The isolated S enantiomer, rather than the approximately equimolar R/S mixture.
- Arketamine - The isolated R enantiomer, rather than the approximately equimolar R/S mixture.
- Ketamine hydrochloride - A salt form; salt identity is separate from whether the ketamine is racemic or enantiopure.
- Ketamine injection - A formulated medicinal product containing ketamine, usually as its hydrochloride, with specified concentration and excipients.
- Norketamine - An N-demethylated metabolite with a different chemical composition.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of (RS)-ketamine this model covers, and on what evidence? provenance
What the second pass must settle
- Does an existing Vercy world model already cover this concept, and how does the registry relate racemic ketamine to its salt forms?
- Which authoritative identifiers unambiguously describe the racemate, and which instead describe unspecified stereochemistry or a particular salt?
- Which specification and analytical uncertainty establish an acceptable racemic composition for the intended material grade?
- Which physical-property and stability measurements are supported specifically for the registered form, including any limitations on boiling-point evidence?
- Which current hazard classifications, exposure limits and activity-specific legal controls apply in the intended jurisdictions?