dye|World dye variety

Name:C.I.Acid Red 21,C.I.14965

Molecular Structure: Single azo class

C.I.Acid Red 21,C.I.14965,CAS 5858-71-9/99035-76-4,496.42,C18H14N2Na2O8S2,Light Scarlet EG

Molecular Formula:C₁₈H₁₄N₂Na₂O₈S₂

Molecular Weight: 496.42

CAS Registry Number:5858-71-9/99035-76-4

Manufacturing Methods : 2-Amino-4-methylanisole diazo, and 8-Hydroxynaphthalene-1,6-disulfonic acid coupling.

Properties and Applications:  red. Soluble in water for blu-ray red. The strong sulfuric acid for violet blue, diluted red for blue-ray. In water solution to join hydrochloric acid discoloration; Add sodium hydroxide is yellow.

List of Suppliers:

Pontacyl Light Scarlet EG ( du Pont E.I. de Nemours & Co. Inc. )

Pontacyl Light Scarlet EG(Classic Dyestuffs Inc)