Disperse Blue 148

52239-04-0

C19H19N5O4S

H2O : >= 30 mg/mL (72.56 mM); DMSO : 20 mg/mL (48.37 mM; Need ultrasonic and warming)

Others

Disperse Blue 148 is the best high-temperature trichromatic blue azo dye. Target: Single-crystal structures of the best high-temperature trichromatic blue azo dye C.I. Disperse Blue 148 and its diazonium component 3-amino-5-nitro-[2, 1]- benzisothiazole are described herein. C.I. Disperse Blue 148 exhibits an essentially coplanar molecular structure and a dimeric packing mode between adjacent phenyl and benzisothiazole rings. Particularly, PXRD measurement reveals the existence of a new crystalline form of C.I. Disperse Blue 148 having the highest melting point and the best thermal stability, which is obviously different from all the known alpha, beta, and gamma forms. [1]