dye|World dye variety

Name:C.I.Direct Red 49,C.I.25375

Molecular Structure: Double azo class

C.I.Direct Red 49,C.I.25375,CAS 6772-28-7,986.85,C35H26N8Na4O13S4,Benzo Light Eosine BL

Molecular Formula:C₃₅H₂₆N₈Na₄O₁₃S₄

Molecular Weight: 986.85

CAS Registry Number:6772-28-7

Manufacturing Methods :1,3-Bis(4-amino-3-sulfophenyl)urea double nitriding, and 7-Aminonaphthalene-2-sulfonic acid (2 Moore) coupled.

Properties and Applications: blue light pink. Soluble in water for red, slightly soluble in ethanol is palm red light product. The strong sulfuric acid for orange red brown, diluted purple for grey brown. The dye solution to join strong hydrochloric acid for brown, have precipitation; Add thick sodium hydroxide solution for product red

List of Suppliers:

Benzo Light Eosine BL ( Bayer Group )