dye|World dye variety

Name:C.I.Acid Red 44,C.I.16250

Molecular Structure: Single azo class

C.I.Acid Red 44,C.I.16250,CAS 2766-77-0,502.43,C20H12N2Na2O7S2,Acid Red 6A,Ponceau 6R,Ponceau 4R

Molecular Formula:C₂₀H₁₂N₂Na₂O₇S₂

Molecular Weight: 502.43

CAS Registry Number:2766-77-0

Manufacturing Methods : Naphthalen-1-amine diazo, and 7-Hydroxynaphthalene-1,3-disulfonic acid coupling.

Properties and Applications:  red. Soluble in water for red, soluble in ethanol for yellow light red, almost insoluble in acetone. The strong sulfuric acid for red light blue, diluted for scarlet. In water solution to join hydrochloric acid colour and lustre is darker, and extra a flake crystallization precipitation part; Add thick sodium hydroxide solution for yellow brown.

List of Suppliers:

Acid Red 6A(Colorom SA)

Acid Red No 5( Exotic Associates )

Kemacid Leather Ponceau 4R ( Karsandas Mavji )

Ponceau 6R( ellenic Dyeworks SA )

Romexal Red 6A (Colorom SA)