Dye|Dye intermediates|Fluorescent Brightener|pigment dye

Name:C.I.Pigment Red 49,C.I.15630

Molecular Structure: Single azo

C.I.Pigment Red 49,C.I.15630,CAS 1248-18-6,400.38,C20H13N2NaO4S,Lithol Red,Deepglo Red 49,Lithol Red LN

Molecular Formula:C₂₀H₁₃N₂NaO₄S

Molecular Weight: 400.38

CAS Registry Number:1248-18-6

Manufacturing Methods :commonly known as Lithol Red. 2-Aminonaphthalene-1-sulfonic acid diazotization, and Naphthalen-2-ol coupling.

Properties and Applications:yellow red. Pale red light pink. Slightly soluble in hot water and ethanol, slightly soluble in acetone. In concentrated sulfuric acid to red light purple, purple red after diluted solution, and then have red brown precipitation; In concentrated nitric acid for brown light red solution; Slightly soluble in sodium hydroxide solution. Dye ethanol solution to join concentrated hydrochloric acid for brown light purple; Add sodium hydroxide color constant.

List of Suppliers:

Deepglo Red 49(Deepak Colourants Pvt Ltd)

Lithol Red LN( Multicrom SA )

Microfast ‘C’ Red 49-T (Kromachem Ltd)

Red 17094(22008)( Anstead International )