METHIONINE
UNII AE28F7PNPL

Substance Identification & Data

This profile provides standardized clinical and technical data for Methionine, uniquely identified by the FDA Unique Ingredient Identifier (UNII) AE28F7PNPL.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 63-68-3 and the RxNorm Concept ID (RxCUI) 6837. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code
AE28F7PNPL
CAS Registry Number
63-68-3
RxNorm Concept ID

Detailed Substance Profile

Preferred Name
METHIONINE
Official standardized name for this substance within the FDA UNII nomenclature system.
Molecular Formula
AE28F7PNPL
The specific atomic composition represented as a molecular structure string.
InChIKey
C5H11NO2S
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
FFEARJCKVFRZRR-BYPYZUCNSA-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
452
Sequential identifier assigned via the WHO International Nonproprietary Name program.
Substance Type
chemical
ISO 11238 classification category (e.g., Chemical, Polymer, Protein).
Ingredient Role
C(=O)([C@@H](N)CCSC)O

Synonyms and Nomenclature

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

METHIONINE

Common Names & Synonyms

LEUCINE IMPURITY B [EP IMPURITY]
L-METHIONINE [FCC]
L-METHIONINE [JAN]
L-METHIONINE [USP-RS]
METHIONINE [EP MONOGRAPH]
METHIONINE [HSDB]
METHIONINE [II]
METHIONINE [INN]
METHIONINE [MART.]
METHIONINE [MI]
METHIONINE [USAN]
METHIONINE [USP MONOGRAPH]
METHIONINE [VANDF]
METHIONINE [WHO-DD]

Systematic Nomenclature

(2S)-2-AMINO-4-(METHYLSULFANYL)BUTANOIC ACID
L-METHIONINE

Technical Codes

NSC-22946

NDC Products Containing METHIONINE

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