13-ETHYL-17-HYDROXY-18,19-DINORPREGN-5(10)-EN-20-YN-3-ONE, (17.ALPHA.)-(+/-)-
UNII UCL9B6Y5RB

Substance Identification & Data

This profile provides standardized clinical and technical data for 13-ethyl-17-hydroxy-18,19-dinorpregn-5(10)-en-20-yn-3-one, (17.alpha.)-(+/-)-, uniquely identified by the FDA Unique Ingredient Identifier (UNII) UCL9B6Y5RB.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 1095-74-5 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
UCL9B6Y5RB
CAS Registry Number
1095-74-5
RxNorm Concept ID
N/A

Detailed Substance Profile

Preferred Name
13-ETHYL-17-HYDROXY-18,19-DINORPREGN-5(10)-EN-20-YN-3-ONE, (17.ALPHA.)-(+/-)-
Official standardized name for this substance within the FDA UNII nomenclature system.
InChIKey
C21H28O2
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
QCMLVDXPKCBMFQ-MJCUULBUSA-N;QCMLVDXPKCBMFQ-WRTQPQOASA-N
Line notation for describing the chemical structure and connectivity of atoms.
Substance Type
chemical
ISO 11238 classification category (e.g., Chemical, Polymer, Protein).
Ingredient Role
[C@@]12([C@@]([H])(CCC=3CC(=O)CCC13)[C@]4([C@@](CC2)(CC)[C@](O)(C#C)CC4)[H])[H]

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for 13-ethyl-17-hydroxy-18,19-dinorpregn-5(10)-en-20-yn-3-one, (17.alpha.)-(+/-)-. 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.

Common Names & Synonyms

NORGESTREL IMPURITY B [EP IMPURITY]

Systematic Nomenclature

13-ETHYL-17-HYDROXY-18,19-DINORPREGN-5(10)-EN-20-YN-3-ONE, (17.ALPHA.)-(+/-)-
18,19-DINORPREGN-5(10)-EN-20-YN-3-ONE, 13-ETHYL-17-HYDROXY-, (17.ALPHA.)-(+/-)-
RAC-13-ETHYL-17-HYDROXY-18,19-DINOR-17.ALPHA.-PREGN-5(10)-EN-20-YN-3-ONE