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必应染料-您身边的染料专家

Direct Blue 273

Name:C.I.Direct Blue 273,C.I.278675

Molecular Structure: Double azo,Metal Complexes

C.I.Direct Blue 273,C.I.278675,CAS 70956-20-6/76359-37-0,829.72,C33H22N5Na3O11S3,Direct Blue BRT,Supra Blue 2BLN

C.I.Direct Blue 273,C.I.278675,CAS 70956-20-6/76359-37-0,829.72,C33H22N5Na3O11S3,Direct Blue BRT,Supra Blue 2BLN

Molecular Formula:C33H22N5Na3O11S3

Molecular Weight: 829.72

CAS Registry Number:70956-20-6/76359-37-0

Manufacturing Methods :  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

List of Suppliers:

Burco Direct Blue BRT (Classic Dyestuffs Inc)

Kayarus Supra Blue 2BLN(Nippon Kayak u Co Ltd)


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