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Vat Red 45

Name:C.I.Vat Red 45,C.I.73860

Molecular Structure: Thioindigo class

C.I.Vat Red 45,C.I.73860,CAS 6252-78-4,314.36,C20H10O2S

C.I.Vat Red 45,C.I.73860,CAS 6252-78-4,314.36,C20H10O2S

Molecular Formula:C20H10O2S

Molecular Weight: 314.36

CAS Registry Number:6252-78-4

Manufacturing Methods : Benzo[b]thiophen-3(2H)-one or 3-Oxo-2,3-dihydrobenzo[b]thiophene-2-carboxylic acid and 1,2-Acenaphthylenedione or partial reduction of the condensation product.

Properties and Applications: brilliant pink to brilliant yellow red. Big red powder. Slightly soluble in Xylene for yellow red. In concentrated sulfuric acid for brilliant green, dilution after red flocks. Alkaline reduction leuco for red light purple; Acid reduction leuco for orange. Used for cotton, polyester/cotton blended, wool and silk dyeing.

Standard Ironing Fastness Chlorine bleach Light Fastness Mercerized Oxygen bleach Soaping
Fading Stain
ISO 4 4 5 4-5 3 1 4-5

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