Name:C.I.Reactive Blue 250
Molecular Structure: Azo clas
C.I.Reactive Blue 250,CAS 93951-21-4,1021.84,C27H23N5Na4O20S6,Reactive Blue RGB
Molecular Formula:C27H23N5Na4O20S6
Molecular Weight: 1021.84
CAS Registry Number:93951-21-4
Manufacturing Methods : 2-(3-Amino-4-methoxyphenylsulfonyl)ethyl hydrogen sulfate and 2-(4-Aminophenylsulfonyl)ethyl hydrogen sulfate diazo, respectively in alkaline and acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid coupling.
Properties and Applications: navy blue.
Standard | Light Fastness | Oxygen bleaching | Persperation Fastness | Soaping | |||
Fading | Stain | Fading | Stain | Fading | Stain | ||
ISO | 3-4 | 4-5(Acid)5 | 4-5(Alkali)5 | ||||
