dye|World dye variety

Name:C.I.Direct Violet 31,C.I.27880

Molecular Structure: Double azo class

C.I.Direct Violet 31,C.I.27880,CAS 6227-13-0,691.64,C30H23N5Na2O8S2,Brilliant Blue 2B,Violet 4R-BS,Brilliant Purple 2R

Molecular Formula:C₃₀H₂₃N₅Na₂O₈S₂

Molecular Weight: 691.64

CAS Registry Number:6227-13-0

Manufacturing Methods : 3-Aminobenzenesulfonic acid diazo, and 2-Amino-4-methylanisole coupling, its product to diazo, in alkaline conditions and 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid coupling.

Properties and Applications: blue purple.

List of Suppliers:

Arlindone Brilliant Violet I4R( Arlabs Ltd )

Diazol Brilliant Blue 2B ( Francolor Pigments SA )

Paramine Violet B(Classic Dyestuffs Inc)

Patcovat Violet 4R-BS ( BF Goodrich Specialty Chemicals )

Solatic Brilliant Purple 2R( Atul Limited )