Dye|Dye intermediates|Fluorescent Brightener|pigment dye

Name:C.I.Pigment Yellow  190,C.I.189785

Molecular Structure: Single azo-Metal Complexes

C.I.Pigment Yellow 188,C.I.21094,CAS 23792-68-9,657.55,C34H30Cl2N6O4,Irgalite Yellow LBF

Molecular Formula:C₁₆H₁₀Cl₄N₄O₇S₂

Molecular Weight: 576.22

CAS Registry Number:141489-68-1

Manufacturing Methods : 2-Amino-4,5-dichlorobenzenesulfonic acid diazotization, and 2,5-Bichloro-4-(3-methyl-5-oxo-4,5-dihydropyrazol-1-yl)benzenesulfonic acid coupling, and then into calcium salt.

Properties and Applications:brilliant yellow.

List of Suppliers:

Palitol Yellow Kl570 ( BASF Aktiengesellschaft )

Pigment Yellow 190(CPMA)