dye|World dye variety

Name:C.I.Direct Red 142,C.I.19500

Molecular Structure: Single azo class

C.I.Direct Red 142,C.I.19500,CAS 6826-61-5,495.49,C24H18N5NaO4S,Zambesi Red 4B

Molecular Formula:C₂₄H₁₈N₅NaO₄S

Molecular Weight: 495.49

CAS Registry Number:6826-61-5

Manufacturing Methods : O-Methylaniline diazo, and 2-(3-Aminophenyl)-6-hydroxynaphtho[2,1-d]thiazole-8-sulfonic acid coupling.

Properties and Applications: red. Soluble in water for red, soluble in ethanol for orange red. The strong sulfuric acid for product red, diluted in red. The dye solution to join strong hydrochloric acid for red; Add thick sodium hydroxide solution have orange brown precipitation.

List of Suppliers:

Zambesi Red 4B ( Aktiengesellschaft für Anilin-Fabrikation )