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Direct blue 273
Product Name
Direct blue 273
CAS
70956-20-6
MF
C33H25CuN5Na3O11S3+3
MW
896.28881
EINECS
MOL File
70956-20-6.mol
Usage And Synthesis
Preparation
3-Aminonaphthalene-1,5-disulfonic acid diazo, and 2-Amino-4-methylanisole coupling, again diazo, and 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid coupling, then into chromium complex.
Properties and Applications
blue. Mainly used for paper color.
Standard
Acid Resistance
Alkali Resistance
Light Fastness
Soaping
Water
Fading
Stain
Fading
Stain
ISO
6
4
4
Preparation Products And Raw materials
Raw materials
2-Amino-4,8-naphthalenedisulfonic acid
7-Anilino-4-hydroxy-2-naphthalenesulfonic acid
2-Methoxy-5-methylaniline
Direct blue 273 Supplier
Ningbo Dynasty Chemical Co., Ltd
Tel
86 0574 56159999
Email
info@dynasty-chem.com
Related Product Information
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Direct Blue 278:1
Direct Blue 278
1,3,6-Naphthalenetrisulfonic acid, 8-hydroxy-7-[[4'-[(2-hydroxy-1-naphthalenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-, trisodium salt
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