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Disperse Blue 257

Name:C.I.Disperse Blue 257,C.I.113384

Molecular Structure: Single azo class

C.I.Disperse Blue 257,C.I.113384,CAS 84931-03-3/41622-04-2,C21H23BrN6O5,519.35,Disperse Blue 3R-SF,Disperse Blue S-3RF

C.I.Disperse Blue 257,C.I.113384,CAS 84931-03-3/41622-04-2,C21H23BrN6O5,519.35

Molecular Formula:C21H23BrN6O5

Molecular Weight: 519.35

CAS Registry Number: 84931-03-3/41622-04-2

Manufacturing Methods : 2-Cyano-4-nitro-6-bromoaniline diazo, and N-(3-(bis(2-methoxyethyl)amino)phenyl)acetamide coupling.

Properties and Applications:  red light blue. Used for dyeing and printing of polyester, also suitable for polyester superfine fiber, coloring rate is excellent, good fastness properties.

Standard Ironing Fastness Light Fastness Persperation Fastness Washing Fastness
Fading Stain Fading Stain Fading Stain
ISO 5 4-5 6 5 5 5 5

List of Suppliers:

Disperse Blue 3R-SF,Disperse Blue S-3RF

Hangzhou Garden Corporation 

HANGZHOU SHINYANG SAMWOO FINE CHEMICAL CO., LTD 

Wenzhou Yanleng Chemical Co., Ltd.

Allilon Blue S-3RF( Allied Industrial Corp Ltd  )

Begacron Blue 3RSF( PT Colorindo Aneka Chemicals )

Bezjian Polyester Ultra Blue R-LSW ( Bezjian Dye-Chem Inc. )

Blue S-2RF( Hangzhou Dikai Chemical Co Ltd )

Desron Blue S-2RF ( Sinochem Hebei Imp & Exp Corp )

Disperse Blue S-2RF( Ningbo Free Trade Zone T-Chemi Trading Co Ltd/Hangzhou Shinyang Samwoo Fine Chemical Co Ltd )

Intrasil Blue CKC ( Classic Dyestuffs Inc )

Kayalon Polyester Blue 3R-SF ( Nippon Kayak u Co Ltd )

Kiwalon Polyester Blue 3RF ( Kaseihin Kogyo Kyokai )

Sumikaron Blue S-3RF( Sumitomo Chemical Co. Ltd )


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