Dye|Dye intermediates|Fluorescent Brightener|pigment dye

Name:C.I.Pigment Red 181,C.I.73360

Molecular Structure: Thioindigo

C.I.Pigment Red 181,C.I.73360,CAS 2379-74-0,393.31,C18H10Cl2O2S2,AP Pink 1,Cosmetic Pink RCO1,Oracet Pink RF

Molecular Formula:C₁₈H₁₀Cl₂O₂S₂

Molecular Weight: 393.31

CAS Registry Number:2379-74-0

Manufacturing Methods : 6-Bromo-4-methylbenzo[b]thiophen-3(2H)-one {the method amide route (FIAT1313, 2192) or with Herz sulfur dichloride method (FIAT 764 – PB 25626, fr. 2069) system} oxidation.

Properties and Applications:brilliant yellow red. Insoluble in water, ethanol and acetone in concentrated sulfuric acid for the red light green, then become green, red after diluted; In concentrated nitric acid for red; In the insurance powder alkaline solution for yellow; In the insurance powder acid solution decoloring. And C.I.Vat Red 1 the same chemical structure. Suitable for PES, ABS color.

List of Suppliers:

AP Pink 1 ( AP Color Products )

Cogilor Rubasse 90112 ( Anstead International )

Cosmetic Pink RCO1 ( Clariant GmbH )

Covanor Red W3620 ( Les Colorants Wackherr )

Covarine Red W3791 ( Les Colorants Wackherr )

Covasorb Red W3790( Les Colorants Wackherr )

D&C Red No 30 Lake 90162 ( Atlantic Industries )

D&C Red No 30 W020( Les Colorants Wackherr )

Daltolite Pink FF( Imperial Chemical Industries )

F1 Pink FFR ( Keystone Aniline Corporation )

Oracet Pink RF( Ciba Specialty Chemicals Inc )

Pigment Red 181(CPMA)

Rosaplast Red FPV( Rose Color Inc. )