[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

CAS No.: 5156-38-7

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

Synonyms: 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

CBNumber:: CB04745929

Molecular Formula:: C32H22Br2N4Na2O16S4

Molecular Weight:: 1052.58182

MDL Number:

MOL File:: 5156-38-7.mol

Request For Quotation

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

Raw materials

3H-Indol-3-one,5-dromo-2-1,3-dihydro-3-oxo-2H-indol-2-ylidene-1,2-dihydro Pyridine

Preparation Products

5156-38-7([2,2'-Bi-1H-indole]-3,3'-diol, 5-bromo-, bis(hydrogen sulfate) (ester), disodium salt)Related Search:

Vat Blue 6, Solubilized [2,2'-Bibenzo[4,5]phenaleno[1,9-bc]thiophene]-5,5'-diol, bis(hydrogen sulfate), disodium salt Solubilised Vat Blue 41 4,5,5',7,7'-Pentabromo-2,2'-bi[1H-indole]-3,3'-diol bis(sulfuric acid sodium) salt Vat Brown 1, Solubilised

disodium 5,5',7,7'-tetrabromo[2,2'-bi-1H-indole]-3,3'-diyl disulphate disodium 5-chloro-2-[4-chloro-1-(sulphonatooxy)-2-naphthyl]-7-methoxy-4-methyl-1H-indol-3-yl sulphate 5,5'-Dibromo-4,4'-dichloro-2,2'-bi[1H-indole]-3,3'-diol bis(sulfuric acid sodium) salt 5,9,14,18-Anthrazinetetrol, 6,15-dihydro-, tetrakis(hydrogen sulfate) (ester), tetrasodium salt

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[2,2'-Bi-1H-indole]-3,3'-diol, 5-bromo-, bis(hydrogen sulfate) (ester), disodium salt C.I.Solubilised Vat Blue 3:C.I.73056 Solubilised Vat Blue 3 5156-38-7