logo
Banner

Pigment Yellow 100

Catalog Number DYE-PIG-0593
CAS Number 12225-21-7
Structure
Synonyms Eurolake Tartrazine, Neelilake Tartrazine, Tartrazine Lake, Tartrazine
Molecular Weight 468.42
Molecular Formula C16H12N4O9S2
CI Number C.I.19140:1
Color green yellow
Main Molecular Structure Single azo
Preparation Method (a) 4-Aminobenzenesulfonic acid diazotization, with 5-Oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic acid coupling, and then convert it to aluminum salt; (b) 2 Moore 4-Hydrazinobenzenesulfonic acid and Oxobutanedioic acid reaction, and then convert it to aluminum salt.
Properties Slightly soluble in ethanol and Cellosole, insoluble in other organic solvent. In PVC has excellent fast fastness, insoluble in water, ethanol and xylene, also do not soluble in acid, alkali.

It is important to note that our products are for research use only and are not for clinical use.

Online Inquiry
Verification code