PHENAZOPYRIDINE
UNII K2J09EMJ52

Substance Identification & Data

This profile provides standardized clinical and technical data for Phenazopyridine, uniquely identified by the FDA Unique Ingredient Identifier (UNII) K2J09EMJ52.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 94-78-0 and the RxNorm Concept ID (RxCUI) 8120. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code
K2J09EMJ52
CAS Registry Number
94-78-0
RxNorm Concept ID

Detailed Substance Profile

Preferred Name
PHENAZOPYRIDINE
Official standardized name for this substance within the FDA UNII nomenclature system.
Molecular Formula
K2J09EMJ52
The specific atomic composition represented as a molecular structure string.
InChIKey
C11H11N5
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
QPFYXYFORQJZEC-FOCLMDBBSA-N
Line notation for describing the chemical structure and connectivity of atoms.
NCI Thesaurus
National Cancer Institute reference terminology for clinical and research data.
INN ID
357
Sequential identifier assigned via the WHO International Nonproprietary Name program.
Substance Type
chemical
ISO 11238 classification category (e.g., Chemical, Polymer, Protein).
Ingredient Role
N(\c1ccccc1)=N/c2c(nc(cc2)N)N

Synonyms and Nomenclature

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

PHENAZOPYRIDINE

Common Names & Synonyms

PHENAZOPYRIDINE [HSDB]
PHENAZOPYRIDINE [INN]
PHENAZOPYRIDINE [MI]
PHENAZOPYRIDINE [VANDF]
PHENAZOPYRIDINE [WHO-DD]

Brand / Trade Names

FENAZOPIRIDINA

Systematic Nomenclature

2,6-DIAMINO-3-(PHENYLAZO)PYRIDINE
2,6-PYRIDINEDIAMINE, 3-(PHENYLAZO)-

Technical Codes

NSC-145895

NDC Products Containing PHENAZOPYRIDINE

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