BREXANOLONE
UNII S39XZ5QV8Y

Substance Identification & Data

This profile provides standardized clinical and technical data for Brexanolone, uniquely identified by the FDA Unique Ingredient Identifier (UNII) S39XZ5QV8Y.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 516-54-1 and the RxNorm Concept ID (RxCUI) 2121777. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code
S39XZ5QV8Y
CAS Registry Number
516-54-1
RxNorm Concept ID

Detailed Substance Profile

Preferred Name
BREXANOLONE
Official standardized name for this substance within the FDA UNII nomenclature system.
InChIKey
C21H34O2
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
AURFZBICLPNKBZ-SYBPFIFISA-N
Line notation for describing the chemical structure and connectivity of atoms.
NCI Thesaurus
National Cancer Institute reference terminology for clinical and research data.
PubChem CID
Unique identification number in the NCBI database of chemical substances.
INN ID
10446
Sequential identifier assigned via the WHO International Nonproprietary Name program.
USAN ID
DE-17
Identifier assigned by the United States Adopted Names Council.
Substance Type
chemical
ISO 11238 classification category (e.g., Chemical, Polymer, Protein).
Ingredient Role
C[C@]12CC[C@@H](O)C[C@]1([H])CC[C@@]3([H])[C@]4([H])CC[C@H](C(=O)C)[C@@]4(C)CC[C@@]32[H]

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Brexanolone. 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.

FDA Official Name

BREXANOLONE

Common Names & Synonyms

ALLOPREGNAN-3.ALPHA.-OL-20-ONE
ALLOPREGNAN-3.ALPHA.-OL-20-ONE [MI]
ALLOPREGNANOLONE
ALLOTETRAHYDROPROGESTERONE
BREXANOLONE [INN]
BREXANOLONE [ORANGE BOOK]
BREXANOLONE [USAN]
BREXANOLONE [WHO-DD]
DEA NO. 2400

Brand / Trade Names

ZULRESSO

Systematic Nomenclature

(+)-3.ALPHA.-HYDROXY-5.ALPHA.-PREGNAN-20-ONE
3.ALPHA.-HYDROXY-5.ALPHA.-PREGNAN-20-ONE
PREGNAN-20-ONE, 3-HYDROXY-, (3.ALPHA.,5.ALPHA.)-

Technical Codes

SAGE-547
SGE-102