SOLVENT YELLOW 18
UNII L4SQI4K87S

Substance Identification & Data

This profile provides standardized clinical and technical data for Solvent Yellow 18, uniquely identified by the FDA Unique Ingredient Identifier (UNII) L4SQI4K87S.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 6407-78-9 and the RxNorm Concept ID (RxCUI) 2566620. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code
L4SQI4K87S
CAS Registry Number
6407-78-9
RxNorm Concept ID

Detailed Substance Profile

Preferred Name
SOLVENT YELLOW 18
Official standardized name for this substance within the FDA UNII nomenclature system.
Molecular Formula
L4SQI4K87S
The specific atomic composition represented as a molecular structure string.
InChIKey
C18H18N4O
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
XNYYSMBOYGEVHM-FMQUCBEESA-N
Line notation for describing the chemical structure and connectivity of atoms.
Substance Type
chemical
ISO 11238 classification category (e.g., Chemical, Polymer, Protein).
Ingredient Role
n1n(c(c(c1C)/N=N/c2c(cc(cc2)C)C)O)-c3ccccc3

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Solvent Yellow 18. 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

SOLVENT YELLOW 18

Common Names & Synonyms

C.I. FOOD YELLOW 12
C.I. SOLVENT YELLOW 18
CI 12740

Brand / Trade Names

OIL SOLUBLE YELLOW ZH

Systematic Nomenclature

3H-PYRAZOL-3-ONE, 4-((2,4-DIMETHYLPHENYL)AZO)-2,4-DIHYDRO-5-METHYL-2-PHENYL-
3H-PYRAZOL-3-ONE, 4-(2-(2,4-DIMETHYLPHENYL)DIAZENYL)-2,4-DIHYDRO-5-METHYL-2-PHENYL-
4-((2,4-DIMETHYLPHENYL)AZO)-2,4-DIHYDRO-5-METHYL-2-PHENYL- 3H-PYRAZOL-3-ONE

NDC Products Containing SOLVENT YELLOW 18

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