13-ETHYL-17-HYDROXY-5.ALPHA.-METHOXY-18,19-DINOR-17.ALPHA.-PREGN-20-YN-3-ONE
UNII K6ELU45BJM

Substance Identification & Data

This profile provides standardized clinical and technical data for 13-ethyl-17-hydroxy-5.alpha.-methoxy-18,19-dinor-17.alpha.-pregn-20-yn-3-one, uniquely identified by the FDA Unique Ingredient Identifier (UNII) K6ELU45BJM.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 155683-60-6 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
K6ELU45BJM
CAS Registry Number
155683-60-6
RxNorm Concept ID
N/A

Detailed Substance Profile

Preferred Name
13-ETHYL-17-HYDROXY-5.ALPHA.-METHOXY-18,19-DINOR-17.ALPHA.-PREGN-20-YN-3-ONE
Official standardized name for this substance within the FDA UNII nomenclature system.
InChIKey
C22H32O3
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
FOJSXAOBPRABPZ-WIJSBRJSSA-N
Line notation for describing the chemical structure and connectivity of atoms.
PubChem CID
Unique identification number in the NCBI database of chemical substances.
Substance Type
chemical
ISO 11238 classification category (e.g., Chemical, Polymer, Protein).
Ingredient Role
C1(CC[C@@]2([C@]3(CC[C@@]4([C@@](CC[C@]4([C@@]3(CC[C@]2(C1)OC)[H])[H])(C#C)O)CC)[H])[H])=O

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for 13-ethyl-17-hydroxy-5.alpha.-methoxy-18,19-dinor-17.alpha.-pregn-20-yn-3-one. 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

LEVONORGESTREL IMPURITY O [EP IMPURITY]

Systematic Nomenclature

13-ETHYL-17-HYDROXY-5.ALPHA.-METHOXY-18,19-DINOR-17.ALPHA.-PREGN-20-YN-3-ONE
18,19-DINORPREGN-20-YN-3-ONE, 13-ETHYL-17-HYDROXY-5-METHOXY-, (5.ALPHA.,17.ALPHA.)-
4,5-DIHYDRO-5.ALPHA.-METHOXYLEVONORGESTREL