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

Product Name
9-Chloro-2-[3-(sodiosulfooxy)benzo[b]thiophen-2-yl]naphtho[2,3-b]thiophen-3-ol (sulfuric acid sodium) salt
CAS No.
4735-07-3
Chemical Name
9-Chloro-2-[3-(sodiosulfooxy)benzo[b]thiophen-2-yl]naphtho[2,3-b]thiophen-3-ol (sulfuric acid sodium) salt
Synonyms
C.I.73401;Cibantine Violet 6R;Solubilised Vat Violet 4;C.I.Solubilised Vat Violet 4;C.I.Solubilised Vat Violet 4 :C.I.73401;9-Chloro-2-[3-(sodiosulfooxy)benzo[b]thiophen-2-yl]naphtho[2,3-b]thiophen-3-ol (sulfuric acid sodium) salt
CBNumber
CB12315901
Molecular Formula
C20H9ClNa2O8S4
Formula Weight
586.9732
MOL File
4735-07-3.mol
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Hazard and Precautionary Statements (GHS)

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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 Chemical Properties,Usage,Production

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) salt Preparation Products And Raw materials

Raw materials

Preparation Products

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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 Suppliers