必应染料-您身边的染料专家

Direct Red 49

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

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

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 3 5 3 1 1

List of Suppliers:

Benzo Light Eosine BL ( Bayer Group )


One Response to “Direct Red 49”

  1. […] C.I.Direct Red 49 […]

Leave a Reply