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C.I. Direct red 42

C.I. Direct red 42 Structure
C.I. Direct red 42 structure
CAS No.
6548-39-6
Chemical Name:
C.I. Direct red 42
Synonyms
Direct Red 42;C.I. Direct red 42;C.I.Direct Red 42:C.I.22180;6-amino-5-[[4-[4-[(6-amino-1-oxido-3-sulfonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]naphthalene-1,3-disulfonate;1,3-Naphthalenedisulfonic acid, 6-amino-5-((4'-((6-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo)(1,1'-biphenyl)-4-yl)azo)-, trisodium salt
CBNumber:
CB72495113
Molecular Formula:
C32H21N6Na3O10S3
Molecular Weight:
814.70765
MDL Number:
MOL File:
6548-39-6.mol
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C.I. Direct red 42 Properties

EPA Substance Registry System C.I. Direct Red 42 (6548-39-6)

C.I. Direct red 42 Chemical Properties,Uses,Production

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, first and 6-Aminonaphthalene-1,3-disulfonic acid?coupling, and then in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling.

Properties and Applications

dark blue light red. Soluble in water for product red, slightly soluble in ethanol for shallow peachblossom. The strong sulfuric acid in blue, diluted for Shallow red time The dye solution to join strong hydrochloric acid for red light brown, have precipitation; Add thick sodium hydroxide solution for orange brown.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 3 5 1 1 1-2

C.I. Direct red 42 Preparation Products And Raw materials

Raw materials

Benzidine J acid 2-Naphthylamine-5,7-disulfonic acid

Preparation Products

6548-39-6(C.I. Direct red 42)Related Search:

vital new red 5-[[4'-[(6-Amino-1-hydroxy-3-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-2-hydroxybenzoic acid disodium salt DIRECT FAST RED 3B DIRECT RED 31 DIRECT RED 37
7,7'-[Ureylenebis[(1-hydroxy-3-sodiosulfonaphthalene-6,2-diyl)azo(4,1-phenylene)azo]]bis[naphthalene-1,3-disulfonic acid disodium] salt C.I. Direct Red 36, tetrasodium salt DIRECT RED 4 3-Amino-4-[[4'-[(2-amino-8-hydroxy-6-sodiosulfo-1-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]naphthalene-2,7-disulfonic acid disodium salt

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C.I. Direct red 42 1,3-Naphthalenedisulfonic acid, 6-amino-5-((4'-((6-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo)(1,1'-biphenyl)-4-yl)azo)-, trisodium salt 6-amino-5-[[4-[4-[(6-amino-1-oxido-3-sulfonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]naphthalene-1,3-disulfonate C.I.Direct Red 42:C.I.22180 Direct Red 42 6548-39-6 C32H21N6Na3O10S3