progesterone
Enable an AI agent to recognise progesterone, assess the identity and condition of a material or measurement containing it, and determine which handling or interpretation actions are justified.
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.
Researched by: Codex + Grok
Purpose and description
Enable an AI agent to recognise progesterone, assess the identity and condition of a material or measurement containing it, and determine which handling or interpretation actions are justified.
Progesterone is an endogenous C21 steroid hormone (pregn-4-ene-3,20-dione) produced mainly by the corpus luteum, placenta and adrenal cortex that binds the nuclear progesterone receptor and is required for endometrial secretory transformation, maintenance of pregnancy, and several extra-reproductive signalling roles.
It can be Resolve a progesterone identity claim against structural and analytical evidence.; Compare progesterone measurements after checking matrix, method, units and collection context.; Assess a progesterone batch or aliquot against the specification for its intended use.; Select or request an appropriate identity, content or interference investigation.; Link measured progesterone to biological and administration context without assuming its source.; Support storage, quarantine or referral decisions using applicable material or product documentation..
Distinguishing features
Require agreement with progesterone's stereochemically specified structure, rather than its name or molecular formula alone; PubChem identifies it as CID 5994, C21H30O2, with carbonyl groups at positions 3 and 20 and a C4-C5 double bond. [PubChem](https://pubchem.ncbi.nlm.nih.gov/compound/Progesterone)
Compare the candidate's complete structure against progesterone before accepting a label such as progestogen, progestin or progesterone-like as an identity match.
Check stereochemistry explicitly: a matching formula does not distinguish progesterone from 17-isoprogesterone. [PubChem: Isoprogesterone](https://pubchem.ncbi.nlm.nih.gov/compound/Isoprogesterone)
Distinguish the progesterone ingredient from a preparation containing it: micronized progesterone capsules have formulation-specific properties and are not simply a quantity of pure substance. [DailyMed](https://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=0bf317a8-96d6-849d-7850-9084205a5315)
Require the analytical target to be progesterone itself before treating a related steroid measurement or a biological activity result as a progesterone concentration.
Scope
+ Molecular identity and evidence distinguishing progesterone from related steroids.
+ Progesterone content, purity and physical presentation in identified materials.
+ Measurements of progesterone with specimen, method, timing and uncertainty.
+ Relations to endogenous production, administered preparations and biological activity.
+ Evidence supporting storage, analytical use and referral to clinical or product-specific decisions.
- Other progestogens, progesterone metabolites and steroid precursors as independently modelled substances.
- Whole reproductive systems, pregnancy states and endocrine disorders.
- Complete medicinal products, their excipients, authorisations and manufacturing specifications.
- Patient-specific diagnoses, prescribing decisions and treatment protocols.
- Laboratory instruments and assay procedures as independently managed systems.
Characteristics
- Molecular identity confidence
- label-only | analytically supported | conflicting | unresolved Determines whether the material can be treated as progesterone rather than an analogue or misidentified steroid.
- Occurrence context
- bulk substance | reference material | preparation ingredient | biological analyte Determines which quality criteria and actions apply to the occurrence.
- Progesterone content
- mg, mg/g or mass fraction, with denominator and analytical basis Separates the amount of progesterone from the total amount of a mixture or preparation.
- Biological concentration
- nmol/L or ng/mL, with matrix, collection time and measured fraction Supports comparison only when the measurement context and units are compatible.
- Analytical purity
- percentage with method and basis; identified impurity concentrations Supports assessment of suitability for a stated analytical or material use.
- Physical presentation
- solid | dissolved | suspended | dispersed in a preparation; particle-size description where relevant Guides sampling, preparation and interpretation of material-specific performance.
- Source attribution
- linked manufacturing source, biological compartment or administration event; confidence stated Prevents molecular identity from being mistaken for evidence of biological or manufacturing origin.
- Measurement comparability
- comparable | conditionally comparable | incompatible | unresolved Controls whether observations may support a trend or shared interpretation.
- Material suitability
- supported for stated use | restricted | quarantined | unresolved Connects identity, condition and specification evidence to a concrete permitted use.
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 · 11 findings · 27 questions.
Progesterone identity Establish what evidence makes a substance occurrence progesterone.
Steroid similarity and broad hormone terminology can conceal a different molecule.
Structure and stereochemistry
Resolve molecular identity beyond a formula or label.
Progesterone structure match
Record whether an identity claim matches the reference structure and its stereochemistry.
- Which authoritative structure and identifier define progesterone for this occurrence? definition
- What analytical evidence distinguishes the candidate from structurally similar steroids and stereoisomers? measurement
Substance and class boundaries
Separate progesterone from neighbouring substances and preparations.
Progesterone name resolution
Determine whether a name refers to the molecule, a class of agents or a product containing it.
- Does the supplied name identify progesterone itself, a different progestogen or a medicinal product? boundary
- Which ingredient or structural record supports mapping this name to vr.tr.progesterone? provenance
Progesterone material quality Assess progesterone as a physical material with a particular composition and condition.
An identity match alone does not establish the content or suitability of a batch, standard or preparation.
Content and related substances
Distinguish progesterone quantity from impurities and carrier material.
Progesterone content basis
Record measured progesterone content and the basis on which purity is reported.
- How much progesterone is present, and is the reported value based on total material, dried material or another denominator? measurement
- Which related steroids, degradation products or other impurities were assessed against the intended-use specification? measurement
Presentation and stability
Connect physical form and exposure history to supported usability.
Progesterone condition assessment
Record the material's physical presentation and evidence that its condition remains acceptable.
- Is progesterone present as a solid, solution or suspension, and what solvent, carrier or particle-size information is relevant? definition
- What storage, opening or preparation history must be checked against the applicable stability evidence? provenance
- Does the documented condition support use, require retesting or justify quarantine? action
Progesterone measurement Establish what a progesterone result measures and whether it can be compared or interpreted.
A numerical progesterone result is incomplete without its specimen and analytical context.
Specimen and measurand
Define the sampled occurrence and reported quantity.
Progesterone result context
Bind the result to a matrix, collection event, measured fraction and unit.
- Which specimen matrix and collection time does the progesterone result describe? provenance
- Does the result represent total progesterone, a specified fraction or another explicitly defined measurand? definition
- What value, units, uncertainty and reporting limits accompany the observation? measurement
Specificity and comparability
Assess analytical limitations before combining progesterone observations.
Progesterone assay fitness
Record evidence that the method is sufficiently specific and sensitive for the intended interpretation.
- What method, calibration and interference evidence support measuring progesterone in this matrix and concentration range? measurement
- Do differences in assay, specimen handling or measured fraction prevent comparison with another result? boundary
- What unresolved interference or reporting-limit issue warrants repeat or confirmatory measurement? action
Progesterone biological context Relate progesterone observations to their organism, timing and possible sources.
Concentration alone cannot establish biological origin, tissue response or a clinical state.
Source and timing
Record the context needed to evaluate a biological observation.
Progesterone observation attribution
Distinguish documented context from inferred source attribution.
- Which species, compartment and relevant reproductive or endocrine context accompany the observation? provenance
- What collection timing relative to documented cycle events, pregnancy stage or progesterone administration is available? provenance
- What evidence supports an endogenous, administered or mixed contribution, and what remains unassignable? boundary
Concentration and response
Separate measured presence from claims about biological effect.
Progesterone interpretation boundary
State what contextual evidence permits an interpretation and where another model must decide.
- Which reference population or decision framework matches this specimen, assay and biological context? boundary
- What independent evidence supports a claimed tissue response or physiological interpretation? measurement
- Which proposed conclusions require a patient, reproductive-state or disease model rather than this substance model? boundary
Progesterone use decisions Connect evidence about progesterone to justified handling and use.
Molecular sameness does not establish that materials, formulations or routes can serve the same purpose.
Preparation and exposure
Link progesterone to the preparation and administration evidence relevant to a proposed use.
Progesterone preparation link
Record the containing product and prevent unsupported transfer of exposure claims between preparations.
- Which product, progesterone strength, formulation and route are linked to the proposed use? provenance
- What evidence supports any proposed equivalence between the progesterone preparations being compared? boundary
Fitness and action
Determine which action is supported for the particular progesterone occurrence.
Progesterone use disposition
Connect intended use to identity, quality and applicable handling requirements.
- Is the progesterone intended for calibration, research, manufacture or a linked medicinal use, and which specification governs that purpose? definition
- Which current material safety document or product instruction governs handling this particular preparation? provenance
- Does the evidence support the requested action, or must the agent obtain missing evidence or refer the decision to the responsible laboratory or clinical workflow? 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.
Kinds and varieties
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- endogenous circulating progesterone
- micronized oral/vaginal progesterone (bioidentical)
- intramuscular progesterone in oil
- synthetic progestins (distinct class, often grouped in practice)
- 17-alpha-hydroxyprogesterone caproate
- veterinary progesterone (CIDR, implants, assays)
- analytical/reference-standard progesterone
- Which of these kinds and varieties hold for the sense of progesterone this model covers, and on what evidence? provenance
Sources
- WHO Collaborating Centre for Drug Statistics Methodology: ATC/DDD Index - G03DA04 progesterone - Official ATC classification and defined daily dose for progesterone as a pharmaceutical substance.
- PubChem Compound Summary: Progesterone (CID 5994) - IUPAC name, formula, CAS, InChIKey, UNII and physicochemical identifiers.
- Utrogestan 100 mg Capsules - Summary of Product Characteristics - Licensed indications, routes, typical doses, contraindications and safety profile of micronized progesterone.
What the second pass must settle
- Which existing Vercy publication, if any, already owns progesterone and should receive this registry link instead of a separate model?
- Which identity and impurity specifications should govern analytical, research and pharmaceutical progesterone materials?
- Which specimen matrices, species and assay methods have sufficiently validated progesterone reference information for inclusion?
- What formulation-specific stability and exposure evidence supports handling rules or comparisons between progesterone preparations?
- Under which sampling conditions can endogenous and administered contributions be distinguished, and when must source attribution remain unresolved?