dye|World dye variety

Name:C.I.Vat Blue 41,C.I.73040

Molecular Structure: Indigo class

C.I.Vat Blue 41,C.I.73040,CAS 6371-38-6,400.04,C16H6Cl4N2O2,Mitsui Tsuya Brilliant Indigo B

Molecular Formula:C₁₆H₆Cl₄N₂O₂

Molecular Weight: 400.04

CAS Registry Number:6371-38-6

Manufacturing Methods : (a)3,5-Dichloro-N-(carboxymethyl)anthranilic acid and Acetic anhydride reaction, with Sodium hydroxide product processing, then use air oxidation; (b) in Acetic anhydride and Sodium acetate trihydrate existence, 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- in Acetic acid glacial chloride in four (FIAT 764). Commodity dyes for the three and tetrachloro indigo dye mixture.

Properties and Applications:  red light blue. Insoluble in Etanol. In concentrated sulfuric acid to blue light green, dilution after blue precipitation; In the basic insurance powder solution for yellow.

List of Suppliers:

Mitsui Tsuya Brilliant Indigo B ( Mitsui Toatsu Chemicals Ltd )