dye|World dye variety

Name:C.I.Mordant Red 21,C.I.17995

Molecular Structure: Single azo class

C.I.Mordant Red 21,C.I.17995,CAS 6417-36-3,770.74,C36H28N4Na2O9S2,Acid Mordant Red B,Acid Chrome Red B

Molecular Formula:C₃₆H₂₈N₄Na₂O₉S₂

Molecular Weight: 770.74

CAS Registry Number:6417-36-3

Manufacturing Methods : 4-Amino-N-ethyl-N-(naphthalen-1-yl)benzarnide diazotization, and 4-Benzamido-5-hydroxynaphthalene-1,7-disulfonic acid coupling

Properties and Applications: brilliant blue light red. Product red powder. Soluble in water for red, moderate soluble in ethanol for magenta. In concentrated sulfuric acid for magenta, diluted into pink. Dye aqueous solution with concentrated hydrochloric acid for magenta; Join concentrated sodium hydroxide solution for orange brown. Mainly used for wool spinning and carpet industry. Post-mordant dyeing method have bright blue light red, the good fastness.

List of Suppliers:

Acid Mordant Red B Rosi Company

Acid Chrome Red B (Sinochem Hebei Imp & Exp Corp)

Acid Chrome Red B (Nanjing Chemicals Import and Export Corp)

Chrome Red B(Sinochem Liaoning Import & Export Corporation)