dye|World dye variety

Name:C.I.Acid Brown 440,C.I.34908

Molecular Structure: trisazo class

C.I.Acid Brown 440,C.I.34908,CAS 93376-15-9,930.74,C34H21N8Na3O14S3,Acid Leather Brown PNR,Acid Brown A

Molecular Formula:C₃₄H₂₁N₈Na₃O₁₄S₃

Molecular Weight: 930.74

CAS Registry Number:93376-15-9

Manufacturing Methods : 5-Amino-2-(phenylamino)benzenesulfonic acid, 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid, 4-Nitrobenzenamine respectively diazotization and Coupled with resorcinol.

Properties and Applications: brown. Mainly used for leather color.

List of Suppliers:

Acid Leather Brown PNR,Acid Brown A

Hangzhou Xiasha Hengsheng (Sunshine) Chemicals Co.,Ltd.

Apollo Leather Brown PLA ( Taiheung Corp )

Coriamine Brown B( Ciech SA )

Daedo Acid Brown PNR( Daedo Industrial Co. Ltd. )