dye|World dye variety

Name:C.I.Vat Blue 35,C.I.73060

Molecular Structure: Indigo class

C.I.Vat Blue 35,C.I.73060,CAS 84-40-2,420.06,C16H8Br2N2O2,Mitsui Tsuya Indigo BR

Molecular Formula:C₁₆H₈Br₂N₂O₂

Molecular Weight: 420.06

CAS Registry Number:84-40-2

Manufacturing Methods : (a) 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- in sulfuric 1-Amino-4-bromo-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid in two (FIAT 764 and 1313); (b) 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- in the boiling Nitrobenzene with Bromine bromination.

Properties and Applications:  dark blue to navy blue. Aquamarine blue powder. Insoluble in Etanol. In concentrated sulfuric acid to blue light green, blue precipitation after dilution. Alkaline reduction leuco for yellow; Acid reduction leuco for pale yellow. The product of the cotton fiber to direct the gender is tall, good levelness. Used for cotton fabric direct printing, resist printing, prevent discharge and coloring discharge. Also can be used for silk and wool dyeing of wool directness high, good levelness.

List of Suppliers:

Mitsui Tsuya Indigo BR( Mitsui Toatsu Chemicals Ltd )