Direct Red 3
Name:C.I.Direct Red 3,C.I.15080
Molecular Structure: Azo class
Molecular Formula:C26H19N3Na2O8S3
Molecular Weight: 643.62
CAS Registry Number:2846-11-9
Manufacturing Methods : 4-(6-Methyl-2,3-dihydrobenzo[d]thiazol-2-yl)benzenamine diazo, and 8-Ethoxy-1-naphthol-3,6-disulfonic acid coupling.
Properties and Applications: blue light pink. Soluble in water for product red, and adequate soluble in alcohol. The strong sulfuric acid for blue, shallow orange for diluted. The dye solution to join strong hydrochloric acid for orange; Add thick sodium hydroxide solution for red light purple.
Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
Fading | Stain | Fading | Stain | ||||
ISO | 3 | 5 | 2 | 1 | 1 |
List of Suppliers:
Brilliant Gemnine B( Bayer Group )
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