DIPHENHYDRAMINE
UNII 8GTS82S83M

Substance Identification & Data

This profile provides standardized clinical and technical data for Diphenhydramine, uniquely identified by the FDA Unique Ingredient Identifier (UNII) 8GTS82S83M.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 58-73-1 and the RxNorm Concept ID (RxCUI) 3498. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code
8GTS82S83M
CAS Registry Number
58-73-1
RxNorm Concept ID

Detailed Substance Profile

Preferred Name
DIPHENHYDRAMINE
Official standardized name for this substance within the FDA UNII nomenclature system.
Molecular Formula
8GTS82S83M
The specific atomic composition represented as a molecular structure string.
InChIKey
C17H21NO
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
ZZVUWRFHKOJYTH-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.
INN ID
1774
Sequential identifier assigned via the WHO International Nonproprietary Name program.
Substance Type
chemical
ISO 11238 classification category (e.g., Chemical, Polymer, Protein).
Ingredient Role
CN(C)CCOC(c1ccccc1)c2ccccc2

Synonyms and Nomenclature

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

DIPHENHYDRAMINE

Common Names & Synonyms

DIPHENHDYRA [VANDF]
DIPHENHYDRAMINE [HSDB]
DIPHENHYDRAMINE [INN]
DIPHENHYDRAMINE [JAN]
DIPHENHYDRAMINE [MART.]
DIPHENHYDRAMINE [MI]
DIPHENHYDRAMINE [VANDF]
DIPHENHYDRAMINE [WHO-DD]
ORPHENADRINE CITRATE IMPURITY D [EP IMPURITY]
ORPHENADRINE IMPURITY D

Brand / Trade Names

RESTAMIN

Systematic Nomenclature

2-(DIPHENYLMETHOXY)-N,N-DIMETHYLETHYLAMINE
ETHANAMINE, 2-(DIPHENYLMETHOXY)-N,N-DIMETHYL-

NDC Products Containing DIPHENHYDRAMINE

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