CEPHALEXIN
UNII OBN7UDS42Y

Substance Identification & Data

This profile provides standardized clinical and technical data for Cephalexin, uniquely identified by the FDA Unique Ingredient Identifier (UNII) OBN7UDS42Y.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 23325-78-2 and the RxNorm Concept ID (RxCUI) 215948. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code
OBN7UDS42Y
CAS Registry Number
23325-78-2
RxNorm Concept ID

Detailed Substance Profile

Preferred Name
CEPHALEXIN
Official standardized name for this substance within the FDA UNII nomenclature system.
Molecular Formula
OBN7UDS42Y
The specific atomic composition represented as a molecular structure string.
InChIKey
C16H17N3O4S.H2O
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
AVGYWQBCYZHHPN-CYJZLJNKSA-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.
Substance Type
chemical
ISO 11238 classification category (e.g., Chemical, Polymer, Protein).
Ingredient Role
CC1=C(C(=O)O)N2C(=O)[C@H]([C@@]2([H])SC1)NC(=O)[C@@H](c3ccccc3)N.O

Synonyms and Nomenclature

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

CEPHALEXIN

Common Names & Synonyms

7-(D-.ALPHA.-AMINO-.ALPHA.-PHENYLACETAMIDO)-3-METHYL-3-CEPHEM-4-CARBOXYLIC ACID MONOHYDRATE
CEFALEXIN MONOHYDRATE
CEFALEXIN MONOHYDRATE [EP IMPURITY]
CEFALEXIN MONOHYDRATE [EP MONOGRAPH]
CEFALEXIN MONOHYDRATE [WHO-DD]
CEPHALEXIN [ORANGE BOOK]
CEPHALEXIN [USAN]
CEPHALEXIN [USP MONOGRAPH]
CEPHALEXIN [USP-RS]
CEPHALEXIN [VANDF]
CEPHALEXIN MONOHYDRATE
CEPHALEXIN MONOHYDRATE [MI]
CEPHALEXIN MONOHYDRATE [VANDF]

Brand / Trade Names

BIOCEF
CEFANEX
KEFLET
KEFLEX
NOVOLEXIN
PANIXINE DISPERDOSE

Systematic Nomenclature

(6R,7R)-7-((R)-2-AMINO-2-PHENYLACETAMIDO)-3-METHYL-8-OXO-5-THIA-1-AZABICYCLO(4.2.0)OCT-2-ENE-2-CARBOXYLIC ACID MONOHYDRATE

Technical Codes

66873
LY-66873

NDC Products Containing CEPHALEXIN

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