dye|World dye variety

Name:C.I.Vat Blue 40,C.I.73805

Molecular Structure: Indigo class

C.I.Vat Blue 40,C.I.73805,CAS 6424-72-2,384.25,C21H15Cl2NO2,Indanthren Printing Blue R

Molecular Formula:C₂₁H₁₅Cl₂NO₂

Molecular Weight: 384.25

CAS Registry Number:6424-72-2

Manufacturing Methods :  2,5,7-Trichloro-4,6-dimethyl-3H-indol-3-one and 4-chloronaphthalen-1-ol condensation in chlorobenzene..

Properties and Applications: red light blue to red light navy blue. In concentrated sulfuric acid to blue light green, dilution after blue; In concentrated nitric acid for purple; In the basic insurance powder solution for yellow; In the acidic insurance powder solution for pale yellow.

List of Suppliers:

Indanthren Printing Blue R( IG Farbenindustrie AG )