16,17-EPI-ESTRIOL
UNII TH2TYY34DL

Substance Identification & Data

This profile provides standardized clinical and technical data for 16,17-epi-estriol, uniquely identified by the FDA Unique Ingredient Identifier (UNII) TH2TYY34DL.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 793-89-5 and the RxNorm Concept ID (RxCUI) N/A. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code

TH2TYY34DL

CAS Registry Number

793-89-5

RxNorm Concept ID

N/A

Detailed Substance Profile

Preferred Name

16,17-EPI-ESTRIOL

Official standardized name for this substance within the FDA UNII nomenclature system.

InChIKey

C18H24O3

International Chemical Identifier digital signature for unique molecular identification.

SMILES String

PROQIPRRNZUXQM-LMMHAMTPSA-N

Line notation for describing the chemical structure and connectivity of atoms.

PubChem CID

21252247

Unique identification number in the NCBI database of chemical substances.

Substance Type

16,17-epi-Estriol

ISO 11238 classification category (e.g., Chemical, Polymer, Protein).

Ingredient Role

C[C@@]12[C@]([C@]3([C@@](c4c(CC3)cc(O)cc4)(CC1)[H])[H])(C[C@H](O)[C@H]2O)[H]

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for 16,17-epi-estriol. Identifiers are organized into official regulatory terms, commercial trade names, and technical systematic synonyms used to ensure accurate identification across clinical pharmaceutical databases, regulatory filings, and electronic health records.