Reactive Blue 81(CAS:75030-18-1)

Reactive Blue 81

Name:C.I.Reactive Blue 81,C.I.18245

Molecular Structure: Single azo class

C.I.Reactive Blue 81,C.I.18245,CAS 75030-18-1,808.49,C25H14Cl2N7Na3O10S3,Brilliant Blue F2R,Blue CD-2R, Blue F-2R

Molecular Formula:C₂₅H₁₄Cl₂N₇Na₃O₁₀S₃

Molecular Weight: 808.49

CAS Registry Number:75030-18-1

Manufacturing Methods : 5-Amino-2-(phenylamino)benzenesulfonic acid diazo, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidcoupling, and then and 2,4,6-Trichloro-1,3,5-triazine condensation .

Properties and Applications: red light blue. Blue powder, in the water solubility is better. Used for cotton fabrics, polyamide, wool dyeing or fountain of rolling dyeing.