AZATHIOPRINE
UNII MRK240IY2L

Substance Identification & Data

This profile provides standardized clinical and technical data for Azathioprine, uniquely identified by the FDA Unique Ingredient Identifier (UNII) MRK240IY2L.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 446-86-6 and the RxNorm Concept ID (RxCUI) 1256. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code
MRK240IY2L
CAS Registry Number
446-86-6
RxNorm Concept ID

Detailed Substance Profile

Preferred Name
AZATHIOPRINE
Official standardized name for this substance within the FDA UNII nomenclature system.
Molecular Formula
MRK240IY2L
The specific atomic composition represented as a molecular structure string.
InChIKey
C9H7N7O2S
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
LMEKQMALGUDUQG-UHFFFAOYSA-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
1291
Sequential identifier assigned via the WHO International Nonproprietary Name program.
Substance Type
chemical
ISO 11238 classification category (e.g., Chemical, Polymer, Protein).
Ingredient Role
c1(c(Sc2c3c([nH]cn3)ncn2)n(C)cn1)[N+]([O-])=O

Synonyms and Nomenclature

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

AZATHIOPRINE

Common Names & Synonyms

AZATHIOPRINE [EP IMPURITY]
AZATHIOPRINE [EP MONOGRAPH]
AZATHIOPRINE [HSDB]
AZATHIOPRINE [IARC]
AZATHIOPRINE [INN]
AZATHIOPRINE [JAN]
AZATHIOPRINE [MART.]
AZATHIOPRINE [MI]
AZATHIOPRINE [ORANGE BOOK]
AZATHIOPRINE [USAN]
AZATHIOPRINE [USP MONOGRAPH]
AZATHIOPRINE [USP-RS]
AZATHIOPRINE [VANDF]
AZATHIOPRINE [WHO-DD]
AZATHIOPRINE [WHO-IP]
AZATHIOPRINUM [WHO-IP LATIN]

Brand / Trade Names

AZASAN
IMURAN

Systematic Nomenclature

1H-PURINE, 6-((1-METHYL-4-NITRO-1H-IMIDAZOL-5-YL)THIO)
6-((1-METHYL-4-NITROIMIDAZOL-5-YL)THIO)PURINE
6-((1-METHYL-4-NITROIMIDAZOL-5-YL)THIO)PURINE6-((1-METHYL-4-NITRO-1H-IMIDAZOL-5-YL)THIO)-1H-PURINE

Technical Codes

BW-57-322
NSC-39084

NDC Products Containing AZATHIOPRINE

This unique ingredient identifier is listed as an ingredient or substance in the following products in the NDC directory: