[2,2'-Bi-1H-indole]-3,3'-diol, 5-bromo-, bis(hydrogen sulfate) (ester), disodium salt

[2,2'-Bi-1H-indole]-3,3'-diol, 5-bromo-, bis(hydrogen sulfate) (ester), disodium salt Structure
[2,2'-Bi-1H-indole]-3,3'-diol, 5-bromo-, bis(hydrogen sulfate) (ester), disodium salt
  • CAS No.5156-38-7
  • Chemical Name:[2,2'-Bi-1H-indole]-3,3'-diol, 5-bromo-, bis(hydrogen sulfate) (ester), disodium salt
  • CBNumber:CB04745929
  • Molecular Formula:C32H22Br2N4Na2O16S4
  • Formula Weight:1052.58182
  • MOL File:5156-38-7.mol
Hazard and Precautionary Statements (GHS)
  • Symbol(GHS)
  • Signal word
  • Hazard statements
  • Precautionary statements

[2,2'-Bi-1H-indole]-3,3'-diol, 5-bromo-, bis(hydrogen sulfate) (ester), disodium salt Chemical Properties,Usage,Production

  • Preparation (a) in the presence of ?Pyridine?, with Chlorosulfonic acid treatment C.I. Vat Blue 3 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 Blue 3. The above two kinds of situation after alkaline, filter out insolubles, remove Pyridine and salting out.
  • Properties and Applications red light blue. Soluble in water is blue.
    Standard Ironing Fastness Chlorine bleach Light Fastness Mercerized Oxygen bleach Soaping
    Fading Stain
    ISO 4 3 3-4 4 3-4
[2,2'-Bi-1H-indole]-3,3'-diol, 5-bromo-, bis(hydrogen sulfate) (ester), disodium salt Preparation Products And Raw materials
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[2,2'-Bi-1H-indole]-3,3'-diol, 5-bromo-, bis(hydrogen sulfate) (ester), disodium salt Spectrum
5156-38-7, [2,2'-Bi-1H-indole]-3,3'-diol, 5-bromo-, bis(hydrogen sulfate) (ester), disodium saltRelated Search:
  • 5156-38-7
  • Solubilised Vat Blue 3
  • C.I.Solubilised Vat Blue 3:C.I.73056
  • [2,2'-Bi-1H-indole]-3,3'-diol, 5-bromo-, bis(hydrogen sulfate) (ester), disodium salt

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