Dye|Dye intermediates|Fluorescent Brightener|pigment dye

Name:C.I.Pigment Red 57:2;,C.I.15850:2

Molecular Structure: Single azo

C.I.Pigment Red 57:2;,C.I.15850:2,CAS 17852-98-1,386.38,C18H14N2O6S,Ariabel Ruby,Cogilor Ruby,D&C Red No 6 Lake

Molecular Formula:C₁₈H₁₄N₂O₆S

Molecular Weight: 386.38

CAS Registry Number:17852-98-1

Manufacturing Methods :2-Amino-5-methylbenzenesulfonic acid diazotization, and 3-Hydroxy-2-naphthoic acid coupling, and then into calcium salt.

Properties and Applications:red, pale red light purple. Soluble in hot water for yellow red, not soluble in ethanol. In concentrated sulfuric acid for magenta, dilution after magenta precipitation. Pigment solution to join concentrated hydrochloric acid have brown light red precipitation; Join concentrated sodium hydroxide solution for brown.

List of Suppliers:

Ariabel Ruby 300503 ( Warner-Jenkinson Co )

Cogilor Ruby 90108 ( Anstead International )

Covachip Red W3714 ET ( Les Colorants Wackherr )

Covanail Red W3734 ( Les Colorants Wackherr )

Covanor Red W3604 ( Les Colorants Wackherr )

Covapate Red W3764 ( Les Colorants Wackherr )

D&C Red No 6 Lake (13009)( Anstead International )

D&C Red No 6 W004 ( Les Colorants Wackherr )

Deepglo Rubine Toner CAT/CA O (Deepak Colourants Pvt Ltd)

Dispercel Red 6-COS(Tennants Inks & Coating Supplies Ltd)

Neelicert D&C Red 6( Neelikon Food Dyes and Chemicals Ltd )

Pigment Red 57:2(CPMA)