HYDROQUINONE
UNII XV74C1N1AE

Substance Identification & Data

This profile provides standardized clinical and technical data for Hydroquinone, uniquely identified by the FDA Unique Ingredient Identifier (UNII) XV74C1N1AE.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 123-31-9 and the RxNorm Concept ID (RxCUI) 5509. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code
XV74C1N1AE
CAS Registry Number
123-31-9
RxNorm Concept ID

Detailed Substance Profile

Preferred Name
HYDROQUINONE
Official standardized name for this substance within the FDA UNII nomenclature system.
Molecular Formula
XV74C1N1AE
The specific atomic composition represented as a molecular structure string.
InChIKey
C6H6O2
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
QIGBRXMKCJKVMJ-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
c1(ccc(cc1)O)O

Synonyms and Nomenclature

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

HYDROQUINONE

Common Names & Synonyms

BUTYLHYDROXYANISOLE IMPURITY A [EP IMPURITY]
HYDROQUINONE [HSDB]
HYDROQUINONE [IARC]
HYDROQUINONE [MART.]
HYDROQUINONE [MI]
HYDROQUINONE [ORANGE BOOK]
HYDROQUINONE [USP MONOGRAPH]
HYDROQUINONE [USP-RS]
HYDROQUINONE [VANDF]
HYDROQUINONE [WHO-DD]
TRI-LUMA COMPONENT HYDROQUINONE

Brand / Trade Names

BLACK AND WHITE BLEACHING CREAM
ELDOPAQUE FORTE
ELDOQUIN FORTE
SOLAQUIN FORTE

Systematic Nomenclature

1,4-BENZENEDIOL

Technical Codes

CHEBI:17594
NCI-C55834
NSC-9247

NDC Products Containing HYDROQUINONE

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