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disodium 5,5',7,7'-tetrabromo[2,2'-bi-1H-indole]-3,3'-diyl disulphate

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disodium 5,5',7,7'-tetrabromo[2,2'-bi-1H-indole]-3,3'-diyl disulphate Suppliers list
Company Name: Jaffs Dyechem Private Limited  
Tel: +91-9825035135 +91-7925392314
Email: info@jaffsdyechem.com
Products Intro: Product Name:Vat blue 5 solubilized
CAS:2702-33-2
Purity:98% Package:1 kg,5 kg, 10 kg,25kg and 1 MT
Company Name: Nirvip Pvt. Ltd  
Tel: +91-2226162019 +91-2226162019
Email: nirvip@gmail.com
Products Intro: Product Name:Vat blue 5 solubilized
CAS:2702-33-2
Purity:98% Package:1 kg,5 kg, 10 kg,25kg and 1 MT
Company Name: Dynasty Colourants Co., Ltd.  
Tel: 86 0574 27862107 27862719
Email: info@dynasty-color.com
Products Intro:
disodium 5,5',7,7'-tetrabromo[2,2'-bi-1H-indole]-3,3'-diyl disulphate Basic information
Product Name:disodium 5,5',7,7'-tetrabromo[2,2'-bi-1H-indole]-3,3'-diyl disulphate
Synonyms:disodium 5,5',7,7'-tetrabromo[2,2'-bi-1H-indole]-3,3'-diyl disulphate;Solubilised Vat Blue 5;5,5',7,7'-Tetrabromo-2,2'-bi[1H-indole]-3,3'-diol bis(sulfuric acid sodium) salt;Anthrasol O-4B;C.I.73066;C.I.Solubilised Vat Blue 5;Solasol Indigo 4B;disodium [5,7-dibromo-2-(5,7-dibromo-3-sulfato-1H-indol-2-yl)-1H-indol-3-yl] sulfate
CAS:2702-33-2
MF:C16H9Br4N2NaO8S2
MW:763.98
EINECS:220-287-8
Product Categories:
Mol File:2702-33-2.mol
disodium 5,5',7,7'-tetrabromo[2,2'-bi-1H-indole]-3,3'-diyl disulphate Structure
disodium 5,5',7,7'-tetrabromo[2,2'-bi-1H-indole]-3,3'-diyl disulphate Chemical Properties
EPA Substance Registry System[2,2'-Bi-1H-indole]-3,3'-diol, 5,5',7,7'-tetrabromo-, bis(hydrogen sulfate) (ester), disodium salt (2702-33-2)
Safety Information
MSDS Information
disodium 5,5',7,7'-tetrabromo[2,2'-bi-1H-indole]-3,3'-diyl disulphate Usage And Synthesis
Preparation(a) in the presence of Pyridine , with Chlorosulfonic acid treatment C.I. Vat Blue 5 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 5. The above two kinds of situation after alkaline, filter out insolubles, remove Pyridine and salting out.
Properties and Applicationsblue. Light gray powder. Soluble in water is blue, the acid brilliant is basic, in light and acid under the action of rapid decomposition, make the solution is blue. In concentrated sulfuric acid for cyan. When color oxidation more difficult, low temperature issued color not fully. Mainly used for cotton fabric dyeing and printing, also used for silk and polyester/cotton blended fabric dyeing and printing, but also can be used to hand printed.
Standard Ironing Fastness Chlorine bleach Light Fastness Mercerized Oxygen bleach Soaping
Fading Stain
ISO 5 2 4-5 4 3-4 4-5 5
AATCC 5 2 4-5 3-4 4
disodium 5,5',7,7'-tetrabromo[2,2'-bi-1H-indole]-3,3'-diyl disulphate Preparation Products And Raw materials
Raw materialsVat Blue 4B-->Pyridine
Tag:disodium 5,5',7,7'-tetrabromo[2,2'-bi-1H-indole]-3,3'-diyl disulphate(2702-33-2) Related Product Information
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-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 [2,2'-Bi-1H-indole]-3,3'-diol, 5-bromo-, bis(hydrogen sulfate) (ester), disodium salt