Direct Red 45
Name:C.I.Direct Red 45,C.I.14780
Molecular Structure: Azo,Benzothiazole class
Molecular Formula:C24H15N3Na2O7S3
Molecular Weight: 599.57
CAS Registry Number:2150-33-6
Manufacturing Methods : 2-(4-Aminophenyl)-6-methylbenzo[d]thiazole-7-sulfonic acid diazo, coupled with the 4-Hydroxynaphthalene-1-sulfonic acid.
Properties and Applications: blue light pink to red blue light. Soluble in water for red to product red, soluble in ethanol in red. The strong sulfuric acid to red light purple, diluted for red light purple, have precipitation. The dye solution to join strong hydrochloric acid have red light purple precipitation; Add thick sodium hydroxide solution have article red precipitate.
Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
Fading | Stain | Fading | Stain | ||||
ISO | 4-5 | 2 | 2 | 1-2 | 1-2 | ||
AATCC | 5 | 2 | 3 | 1 | 1-2 |
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