PIGMENT YELLOW 191
UNII C08B82I20P

Substance Identification & Data

This profile provides standardized clinical and technical data for Pigment Yellow 191, uniquely identified by the FDA Unique Ingredient Identifier (UNII) C08B82I20P.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 129423-54-7 and the RxNorm Concept ID (RxCUI) N/A. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code
C08B82I20P
CAS Registry Number
129423-54-7
RxNorm Concept ID
N/A

Detailed Substance Profile

Preferred Name
PIGMENT YELLOW 191
Official standardized name for this substance within the FDA UNII nomenclature system.
InChIKey
C17H13ClN4O7S2.Ca
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
QJDYAGJLJWZUTQ-RZLHGTIFSA-L
Line notation for describing the chemical structure and connectivity of atoms.
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
[Ca+2].c1(S([O-])(=O)=O)cc(C)c(Cl)cc1/N=N/c2c(O)n(-c3cccc(S([O-])(=O)=O)c3)nc2C

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Pigment Yellow 191. 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

BENZENESULFONIC ACID, 4-CHLORO-2-((4,5-DIHYDRO-3-METHYL-5-OXO-1-(3-SULFOPHENYL)-1H-PYRAZOL-4-YL)AZO)-5-METHYL-, CALCIUM SALT (1:1)
BENZENESULFONIC ACID, 4-CHLORO-2-(2-(4,5-DIHYDRO-3-METHYL-5-OXO-1-(3-SULFOPHENYL)-1H-PYRAZOL-4-YL)DIAZENYL)-5-METHYL-, CALCIUM SALT (1:1)
C.I. 18795
C.I. PIGMENT YELLOW 191
CI 18795
PIGMENT YELLOW 191
PIGMENT YELLOW 191 CALCIUM
PV FAST YELLOW HGR
PY 191

Systematic Nomenclature

CALCIUM 4-CHLORO-2-((5-HYDROXY-3-METHYL-1-(3-SULFOPHENYL)-1H-PYRAZOL-4-YL)AZO)-5-METHYLBENZENESULFONATE (1:1)