PHENYLALANINE
UNII 47E5O17Y3R

Substance Identification & Data

This profile provides standardized clinical and technical data for Phenylalanine, uniquely identified by the FDA Unique Ingredient Identifier (UNII) 47E5O17Y3R.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 63-91-2 and the RxNorm Concept ID (RxCUI) 8156. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code
47E5O17Y3R
CAS Registry Number
63-91-2
RxNorm Concept ID

Detailed Substance Profile

Preferred Name
PHENYLALANINE
Official standardized name for this substance within the FDA UNII nomenclature system.
Molecular Formula
47E5O17Y3R
The specific atomic composition represented as a molecular structure string.
InChIKey
C9H11NO2
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
COLNVLDHVKWLRT-QMMMGPOBSA-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
6168
Sequential identifier assigned via the WHO International Nonproprietary Name program.
Substance Type
chemical
ISO 11238 classification category (e.g., Chemical, Polymer, Protein).
Ingredient Role
c1ccc(cc1)C[C@@H](C(=O)O)N

Synonyms and Nomenclature

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

PHENYLALANINE

Common Names & Synonyms

L-.ALPHA.-AMINO-.BETA.-PHENYLPROPIONIC ACID
LAEVO-PHENYL ALANINE
LEUCINE IMPURITY C [EP IMPURITY]
L-PHENYLALANINE [FCC]
L-PHENYLALANINE [FHFI]
L-PHENYLALANINE [JAN]
L-PHENYLALANINE [USP-RS]
LYSINE HYDROCHLORIDE IMPURITY B [EP IMPURITY]
NATEGLINIDE IMPURITY D [EP IMPURITY]
PHENYLALANINE [EP MONOGRAPH]
PHENYLALANINE [HSDB]
PHENYLALANINE [II]
PHENYLALANINE [INN]
PHENYLALANINE [MART.]
PHENYLALANINE [MI]
PHENYLALANINE [USAN]
PHENYLALANINE [USP MONOGRAPH]
PHENYLALANINE [VANDF]
PHENYLALANINE [WHO-DD]
TYROSINE IMPURITY A [EP IMPURITY]

Systematic Nomenclature

(2S)-2-AMINO-3-PHENYLPROPANOIC ACID
3-PHENYL-L-ALANINE
L-PHENYLALANINE

Technical Codes

FEMA NO. 3585
NSC-79477

NDC Products Containing PHENYLALANINE

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