Direct Blue 122
Name:C.I.Direct Blue 122,C.I.27115
Molecular Structure: Double azo class
Molecular Formula:C29H22ClN5Na2O9S2
Molecular Weight: 730.08
CAS Registry Number:6369-27-3
Manufacturing Methods : 2′-Methoxy-4′-amino-5′-chlorooxanilic acid diazo, and 5-Amino-7-ehtoxy-2-naphthalenesulfonic acid coupling, product to diazo, and 6-Hydroxynaphthalene-2-sulfonic acid coupling, and then 2-(4-Aminophenylamino)-2-oxoacetic acid hydrolysis base.
Properties and Applications: blue. Soluble in water for hidden cyan, soluble in ethanol to blue. The strong sulfuric acid in the dark for, for the red light purple diluted. The dye solution to join strong hydrochloric acid for red light purple, have precipitation; With strong sodium hydroxide solution for purple, have precipitation.
Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
Fading | Stain | Fading | Stain | ||||
ISO | 4 | 4-5 | 4 | 4 | 4-5 |
List of Suppliers:
Benzamin Brilliant Blue BBLS( Bayer Group )
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