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ChemicalBook >  Product Catalog >  Dyes and Pigments >  dye >  Acid dye >  sodium 2-[3-(4-sulfonato-o-tolyliminio)-6-o-toluidino-3H-xanthen-9-yl]benzoate

sodium 2-[3-(4-sulfonato-o-tolyliminio)-6-o-toluidino-3H-xanthen-9-yl]benzoate

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sodium 2-[3-(4-sulfonato-o-tolyliminio)-6-o-toluidino-3H-xanthen-9-yl]benzoate Basic information

Product Name:
sodium 2-[3-(4-sulfonato-o-tolyliminio)-6-o-toluidino-3H-xanthen-9-yl]benzoate
Synonyms:
  • 2-(2-oxo-2H-acenaphth-1-ylidene)benzo[b]thiophene-3(2H)-one
  • Vat Red 45
  • Vat red 45 (C.I. 73860)
  • 2-(1-Oxoacenaphthene-2-ylidene)benzo[b]thiophene-3(2H)-one
  • 2-(2,3-Dihydro-3-oxobenzo[b]thiophene-2-ylidene)acenaphthene-1-one
  • 2-(2-Oxoacenaphthylen-1(2H)-ylidene)benzo[b]thiophen-3(2H)-one
  • C.I.73860
  • C.I.Vat Red 45
CAS:
6252-78-4
MF:
C20H10O2S
MW:
314.36
EINECS:
228-378-4
Mol File:
6252-78-4.mol
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sodium 2-[3-(4-sulfonato-o-tolyliminio)-6-o-toluidino-3H-xanthen-9-yl]benzoate Usage And Synthesis

Preparation

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

sodium 2-[3-(4-sulfonato-o-tolyliminio)-6-o-toluidino-3H-xanthen-9-yl]benzoateSupplier

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