dye|World dye variety

Name:C.I.Solvent Yellow 57,C.I.19140

Molecular Structure: Single azo class

C.I.Solvent Yellow 57,C.I.19140,CAS 742-01-8,468.42,C16H12N4O9S2,Lampronol Yellow J

Molecular Formula:C₁₆H₁₂N₄O₉S₂

Molecular Weight: 468.42

CAS Registry Number:742-01-8

Manufacturing Methods : (a) 4-Aminobenzenesulfonic acid diazotization, and 5-Oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic acid coupling; (b) 2 Moore 4-Hydrazinobenzenesulfonic acid and Dioxo acid reaction.

Properties and Applications:  yellow. C.I. Acid Yellow 23 organic salts. Used for alcohol solution and cellulose class paint color, also used in ink.

List of Suppliers:

Lampronol Yellow J( Francolor Pigments SA )