Direct Violet 31
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.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 5 | 4 | 2 | 2 | |||
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 )