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Direct Green 13

Name:C.I.Direct Green 13,C.I.28470

Molecular Structure: Double azo class

C.I.Direct Green 13,C.I.28470,CAS 5852-21-1,1049.9,C41H27N5Na4O15S4,Benzo Brilliant Fast Green GLS

C.I.Direct Green 13,C.I.28470,CAS 5852-21-1,1049.9,C41H27N5Na4O15S4,Benzo Brilliant Fast Green GLS

Molecular Formula:C41H27N5Na4O15S4

Molecular Weight: 1049.9

CAS Registry Number:5852-21-1

Manufacturing Methods : 5-Phenyl-2-amino-benzensulfonic acid diazo, and 5-Amino-7-ehtoxy-2-naphthalenesulfonic acid coupling, product to diazo, and 4-Formamido-5-hydroxynaphthalene-2,7-disulfonic acid coupling (finally coupling is in Pyridine in water).

Properties and Applications: green. Soluble in water for blue light green, soluble in ethanol. The strong sulfuric acid for Gray light black, diluted green for blue-ray. The dye solution to join strong hydrochloric acid have olive green precipitation; Add thick sodium hydroxide solution to black purple precipitation.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 4 3 3 1-2 1-2

List of Suppliers:

Benzo Brilliant Fast Green GLS( IG Farbenindustrie AG )


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