Molecular Structure: Single azo class
Molecular Weight: 401.33
CAS Registry Number:2706-28-7
Manufacturing Methods : 4-(Phenyldiazenyl)benzenamine disulfonated.
Properties and Applications: red light yellow. Soluble in water for green light yellow, slightly soluble in ethanol and soluble fiber element. The strong sulfuric acid for green light orange, yellow for red after diluted. The dye solution to join strong hydrochloric acid for orange red; Add thick sodium hydroxide solution for green light yellow. And C.I.Acid Yellow 9 the same chemical structure.
List of Suppliers:
Neelicol Food Yellow 2( Neelikon Food Dyes and Chemicals Ltd )