dye|World dye variety

Name:C.I.Direct Yellow 13,C.I.25325

Molecular Structure: Double azo class

C.I.Direct Yellow 13,C.I.25325,CAS 1324-42-1,730.68,C31H24N8Na2O7S2,Thiazol Yellow GL

Molecular Formula:C₃₁H₂₄N₈Na₂O₇S₂

Molecular Weight: 730.68

CAS Registry Number:1324-42-1

Manufacturing Methods : N-(4-aminophenyl)acetamide diazo, and 2-Methyl-1H-indole-5-sulfonic acid coupling, and then will the hydrolysis of amino acylation, again will get the amino nitrogen compounds for light accidentally gasification.

Properties and Applications: dark yellow. Soluble in water for golden brown, and adequate soluble in ethanol olive yellow. The strong sulfuric acid for yellow brown, after dilution is purple. Dye with strong hydrochloric acid solution for the red light brown, have precipitation; Add thick sodium hydroxide solution for gold orange.

List of Suppliers:

Thiazol Yellow GL ( Bayer Group )