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8004-49-7

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8004-49-7 Structure

8004-49-7 Structure
IdentificationBack Directory
[Name]

C.I. Direct Red 216
[CAS]

8004-49-7
[Synonyms]

Direct Red 216
C.I. Direct Red 216
C.I.Direct Red 216:C.I.17815
[EINECS(EC#)]

616-833-3
Hazard InformationBack Directory
[Preparation]

mixed N,N-dimethylaniline diazo, and 7-(4-Aminobenzamido)-4-hydroxynaphthalene-2-sulfonic acid coupling.
[Properties and Applications]

colourful red yellow light. Soluble in water for orange red to red, soluble in ethanol is palm light orange. The strong sulfuric acid for product red to red light purple, diluted in red. The dye solution to join strong hydrochloric acid have red precipitate; With sodium hydroxide have orange brown precipitation.
Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 5 4 2 3-4 4
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