TOPOTECAN HYDROCHLORIDE
UNII 956S425ZCY

Substance Identification & Data

This profile provides standardized clinical and technical data for Topotecan Hydrochloride, uniquely identified by the FDA Unique Ingredient Identifier (UNII) 956S425ZCY.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 119413-54-6 and the RxNorm Concept ID (RxCUI) 266573. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code

956S425ZCY

CAS Registry Number

119413-54-6

RxNorm Concept ID

266573

Detailed Substance Profile

Preferred Name

TOPOTECAN HYDROCHLORIDE

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

Molecular Formula

956S425ZCY

The specific atomic composition represented as a molecular structure string.

InChIKey

C23H23N3O5.ClH

International Chemical Identifier digital signature for unique molecular identification.

SMILES String

DGHHQBMTXTWTJV-BQAIUKQQSA-N

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

NCI Thesaurus

C2828

National Cancer Institute reference terminology for clinical and research data.

PubChem CID

60699

Unique identification number in the NCBI database of chemical substances.

USAN ID

BB-40

Identifier assigned by the United States Adopted Names Council.

Substance Type

chemical

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

Ingredient Role

n12c(-c3nc4ccc(c(c4cc3C1)CN(C)C)O)cc5c(c2=O)COC(=O)[C@]5(O)CC.Cl

Synonyms and Nomenclature

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