Basic information Safety Supplier Related

9-Chloro-2-[3-(sodiosulfooxy)benzo[b]thiophen-2-yl]naphtho[2,3-b]thiophen-3-ol (sulfuric acid sodium) salt

Basic information Safety Supplier Related

9-Chloro-2-[3-(sodiosulfooxy)benzo[b]thiophen-2-yl]naphtho[2,3-b]thiophen-3-ol (sulfuric acid sodium) salt Basic information

Product Name:
9-Chloro-2-[3-(sodiosulfooxy)benzo[b]thiophen-2-yl]naphtho[2,3-b]thiophen-3-ol (sulfuric acid sodium) salt
Synonyms:
  • 9-Chloro-2-[3-(sodiosulfooxy)benzo[b]thiophen-2-yl]naphtho[2,3-b]thiophen-3-ol (sulfuric acid sodium) salt
  • C.I.73401
  • C.I.Solubilised Vat Violet 4
  • Cibantine Violet 6R
  • C.I.Solubilised Vat Violet 4 :C.I.73401
  • Solubilised Vat Violet 4
CAS:
4735-07-3
MF:
C20H9ClNa2O8S4
MW:
586.9732
Mol File:
4735-07-3.mol
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9-Chloro-2-[3-(sodiosulfooxy)benzo[b]thiophen-2-yl]naphtho[2,3-b]thiophen-3-ol (sulfuric acid sodium) salt Usage And Synthesis

Preparation

(a) in the presence of Pyridine , with Chlorosulfonic acid treatment C.I. Vat Violet 4 leuco; (b) in the Pyridine with metal (such as copper, iron, zinc, etc) and Sulfur trioxide source (such as Sulfur trioxide, Chlorosulfonic acid or Methyl chlorosulfonate, etc.) processing ?C.I. Vat Violet 4. The above two kinds of situation after alkaline, filter out insolubles, remove Pyridine and salting out.

Properties and Applications

purple.

Standard Ironing Fastness Chlorine bleach Light Fastness Mercerized Oxygen bleach Soaping
Fading Stain
ISO 4-5 4-5 5-6 4 4 4-5 5

9-Chloro-2-[3-(sodiosulfooxy)benzo[b]thiophen-2-yl]naphtho[2,3-b]thiophen-3-ol (sulfuric acid sodium) saltSupplier