Direct Brown 175
Name:C.I.Direct Brown 175,C.I.30150
Molecular Structure: trisazo class
C.I.Direct Brown 175,C.I.30150,CAS 6528-58-1,675.6,C31H22N7NaO8S
Molecular Formula:C31H22N7NaO8S
Molecular Weight: 675.6
CAS Registry Number:6528-58-1
Manufacturing Methods : 4-(4-Aminophenyl)benzenamine double nitriding, first coupled with 2-Hydroxybenzoic acid
, and then and 3-Amino-4-hydroxybenzenesulfonamide diazo, and Resorcinol coupled to accidentally coupled nitrogen compounds.
Properties and Applications: brown
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 1 | 3 | 5-6 | 4-5 | 5 | ||
| AATCC | 2 | 3 | 5-6 | 4 | 5 | ||
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