57131-19-8

Basic information

• Product Name: Direct Black 166
• Synonyms: Direct Black 166;2,7-Naphthalenedisulfonic acid, 4-amino-3-4-4-(2,4-diaminophenyl)azophenylaminocarbonylphenylazo-5-hydroxy-6-(phenylazo)-, disodium salt;Direct black 166 (C.I. 30026);Fast Black ANBN;Direct Black ANBN;C.I.Direct Black 166;Concorde Direct Black ANBN;Dinamine Black NBR SP
• CAS NO: 57131-19-8
• Molecular Formula: C35H26N10O8S2.2Na
• Molecular Weight: 824.764
• EINECS: 276-529-8
• Product Categories: Organics
• Mol File: 57131-19-8.mol
• Article Data: 0

Chemical Properties

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: g/cm³
• CAS DataBase Reference: Direct Black 166(CAS DataBase Reference)
• NIST Chemistry Reference: Direct Black 166(57131-19-8)
• EPA Substance Registry System: Direct Black 166(57131-19-8)

Safety Data

• Hazardous Substances Data: 57131-19-8(Hazardous Substances Data)

Usage

Preparation

4-Amino-N-(4-aminophenyl)benzamide double nitriding, in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?coupled, aniline diazo, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?group of neighborhood, a coupling again with Benzene-1,3-diamine coupling.

Properties and Applications

black. Used for cellulose fiber dyeing and printing, also can be used for leather dyeing. Is C.I. Direct Black 38 substitutes. Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water Fading Stain Fading Stain ISO 3 2-3 1 3 1

Standard

Acid Resistance

Fading

Stain

InChI:InChI=1/C35H28N10O8S2.2Na/c36-21-8-15-27(26(37)18-21)43-40-25-13-11-22(12-14-25)39-35(47)19-6-9-24(10-7-19)42-44-32-28(54(48,49)50)16-20-17-29(55(51,52)53)33(34(46)30(20)31(32)38)45-41-23-4-2-1-3-5-23;;/h1-18,41H,36-38H2,(H,39,47)(H,48,49,50)(H,51,52,53);;/q;2*+1/p-2/b43-40+,44-42+,45-33+;;