dye|World dye variety

Name:C.I.Vat Brown 9,C.I.71025

Molecular Structure: anthraquinones

C.I.Vat Brown 9,C.I.71025,CAS 6424-83-5,1083.06,C72H34N4O8,Indanthren Brown NG

Molecular Formula:C₇₂H₃₄N₄O₈

Molecular Weight: 1083.06

CAS Registry Number:6424-83-5

Manufacturing Methods : 4-Chloroanthracen-10(9H)-one with sulfuric acid Oxalaldehyde processing, its product and N-(5-amino-9,10-dioxo-9,10-dihydroanthracen-1-yl)benzamide (2 Moore) condensation, cyclization and then.

Properties and Applications: dark yellow brown to brown. Dark brown powder. After the fiber dyeing in concentrated sulfuric acid is blue. Alkaline reduction leuco for red brown; Acid reduction leuco for dark brown. Can be used for cotton and silk dyeing.

List of Suppliers:

Indanthren Brown NG( Cassella AG )