6745-67-1

Basic information

• Product Name: 4-Amino-3,6-bis[[4-[(2,4-diamino-5-methylphenyl)azo]phenyl]azo]-5-hydroxynaphthalene-2,7-disulfonic acid disodium salt
• Synonyms: 4-Amino-3,6-bis[[4-[(2,4-diamino-5-methylphenyl)azo]phenyl]azo]-5-hydroxynaphthalene-2,7-disulfonic acid disodium salt;C.I.35260;C.I.Direct Black 28;Columbia Fast Black V;Cutamin Black CV;Rayon Black R
• CAS NO: 6745-67-1
• Molecular Formula: C36H33N13O7S2
• Molecular Weight: 823.8601
• Mol File: 6745-67-1.mol
• Article Data: 0

Chemical Properties

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: 1.67g/cm³
• Refractive Index: 1.795
• CAS DataBase Reference: 4-Amino-3,6-bis[[4-[(2,4-diamino-5-methylphenyl)azo]phenyl]azo]-5-hydroxynaphthalene-2,7-disulfonic acid disodium salt(CAS DataBase Reference)
• NIST Chemistry Reference: 4-Amino-3,6-bis[[4-[(2,4-diamino-5-methylphenyl)azo]phenyl]azo]-5-hydroxynaphthalene-2,7-disulfonic acid disodium salt(6745-67-1)
• EPA Substance Registry System: 4-Amino-3,6-bis[[4-[(2,4-diamino-5-methylphenyl)azo]phenyl]azo]-5-hydroxynaphthalene-2,7-disulfonic acid disodium salt(6745-67-1)

Safety Data

• Hazardous Substances Data: 6745-67-1(Hazardous Substances Data)

Usage

Preparation

4-Nitrobenzenamine (2 Moore) diazo, one in acid conditions, a in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid (1 Moore) coupling, and then will the nitro reduction for amino, again diazo, and 4-Methylbenzene-1,3-diamine (2 Moore) coupled.

Properties and Applications

black. Soluble in water for blue-ray black, slightly soluble in ethanol is green. The strong sulfuric acid for blue-ray green, blue after diluted precipitation. The dye solution to join strong hydrochloric acid blue precipitation; Add thick sodium hydroxide solution for green light blue. Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water Fading Stain Fading Stain ISO 2-3 5 3-4 1-2 2-3

Standard

Acid Resistance

Fading

Stain

ISO

2-3

InChI:InChI=1/C36H33N13O7S2/c1-17-11-28(26(39)15-24(17)37)46-42-20-3-7-22(8-4-20)44-48-34-30(57(51,52)53)13-19-14-31(58(54,55)56)35(36(50)32(19)33(34)41)49-45-23-9-5-21(6-10-23)43-47-29-12-18(2)25(38)16-27(29)40/h3-16,45H,37-41H2,1-2H3,(H,51,52,53)(H,54,55,56)/b46-42+,47-43+,48-44+,49-35-