CYSTEINE, DL-
UNII 5CM45Q5YAF

Substance Identification & Data

This profile provides standardized clinical and technical data for Cysteine, Dl-, uniquely identified by the FDA Unique Ingredient Identifier (UNII) 5CM45Q5YAF.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 3374-22-9 and the RxNorm Concept ID (RxCUI) 1313188. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code

5CM45Q5YAF

CAS Registry Number

3374-22-9

RxNorm Concept ID

1313188

Detailed Substance Profile

Preferred Name

CYSTEINE, DL-

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

Molecular Formula

5CM45Q5YAF

The specific atomic composition represented as a molecular structure string.

InChIKey

C3H7NO2S

International Chemical Identifier digital signature for unique molecular identification.

SMILES String

XUJNEKJLAYXESH-UHFFFAOYSA-N

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

PubChem CID

594

Unique identification number in the NCBI database of chemical substances.

Substance Type

chemical

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

Ingredient Role

C(C(N)CS)(O)=O

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Cysteine, Dl-. 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.