DIPHENHYDRAMINE CITRATE
UNII 4OD433S209

Substance Identification & Data

This profile provides standardized clinical and technical data for Diphenhydramine Citrate, uniquely identified by the FDA Unique Ingredient Identifier (UNII) 4OD433S209.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 88637-37-0 and the RxNorm Concept ID (RxCUI) 82004. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code
4OD433S209
CAS Registry Number
88637-37-0
RxNorm Concept ID

Detailed Substance Profile

Preferred Name
DIPHENHYDRAMINE CITRATE
Official standardized name for this substance within the FDA UNII nomenclature system.
Molecular Formula
4OD433S209
The specific atomic composition represented as a molecular structure string.
InChIKey
C17H21NO.C6H8O7
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
SPCKHVPPRJWQRZ-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.
Substance Type
chemical
ISO 11238 classification category (e.g., Chemical, Polymer, Protein).
Ingredient Role
C(c1ccccc1)(c2ccccc2)OCCN(C)C.C(CC(CC(O)=O)(C(O)=O)O)(O)=O

Synonyms and Nomenclature

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

Common Names & Synonyms

DIPHENHYDRAMINE CITRATE
DIPHENHYDRAMINE CITRATE [MART.]
DIPHENHYDRAMINE CITRATE [ORANGE BOOK]
DIPHENHYDRAMINE CITRATE [USP MONOGRAPH]
DIPHENHYDRAMINE CITRATE [USP-RS]
DIPHENHYDRAMINE CITRATE [VANDF]
DIPHENHYDRAMINE CITRATE [WHO-DD]

Systematic Nomenclature

2-(DIPHENYLMETHOXY)-N,N-DIMETHYLETHYLAMINE CITRATE (1:1)
ETHANAMINE, 2-(DIPHENYLMETHOXY)-N,N-DIMETHYL-, 2-HYDROXY-1,2,3-PROPANETRICARBOXYLATE (1:1)

NDC Products Containing DIPHENHYDRAMINE CITRATE

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