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Direct Red 108

Name:C.I.Direct Red 108,C.I.28165

Molecular Structure: Double azo class

C.I.Direct Red 108,C.I.28165,CAS 5873-23-4,724.07,C30H20ClN5Na2O8S2,Sirius Red BB

C.I.Direct Red 108,C.I.28165,CAS 5873-23-4,724.07,C30H20ClN5Na2O8S2,Sirius Red BB

Molecular Formula:C30H20ClN5Na2O8S2

Molecular Weight: 724.07

CAS Registry Number:5873-23-4

Manufacturing Methods : 4-Amino-3-chloro-5-methylbenzenesulfonic acid diazo, coupled with aniline, its product to diazo, and 7-Benzamido-4-hydroxynaphthalene-2-sulfonic acid coupling.

Properties and Applications: colourful red blue light. Soluble in water for red, slightly soluble in alcohol. In the dark for the strong sulfuric acid, diluted in red. The dye solution to join strong hydrochloric acid have red orange brown precipitation; Add thick sodium hydroxide solution has the purple precipitation.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 5 5 4-5 1-2 1

List of Suppliers:

Sirius Red BB ( Bayer Group )


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