Vat Red 41 Elbaplast Red B for Plastic

Name:C.I.Vat Red 41,C.I.73300

Molecular Structure: Thioindigo class

C.I.Vat Red 41,C.I.73300,CAS 522-75-8,296.37,C16H8O2S2,Vat Fluorescence Red 5B,Vat Red606,Vat Fluorescence 3301,Vat Yellow 5B

Molecular Formula:C₁₆H₈O₂S₂

Molecular Weight: 296.37

CAS Registry Number:522-75-8

Manufacturing Methods : commonly known as Thioindigo. (a) the diazotized 2-Aminobenzoic acid conversion into Benzo[b]thiophen-3(2H)-one , then water slurry sulfur oxidation treatment in boiling; (b) acetylene - bis thio acid with loop and chlorosulfonic acid oxidation (GP 205324).

Properties and Applications: blue light red. Deep red powder. Insoluble in water, soluble in Etanol for blue light red, soluble in Xylene in red. In concentrated sulfuric acid for brilliant blue green, dilution after blue red flocks. Alkaline reduction leuco for red light yellow, Acid reduction leuco for pale yellow. Used for dyeing cotton fabric for blue light red, good levelness. Also can be used for fabric direct printing, resist printing and discharge printing. Also can be used for wool, silk dyeing and printing. Can do SOLVENT DYE use.