HuagongsheHuagongshe Chemistry Print Report · For research reference only
Disodium (2,2'-binaphtho(2,1-b)thiophene)-1,1'-diyl disulphate
C.I.73411 · Solasol Brown 2RS · Solubilised Vat Brown 5 · Vat Brown 5, Solubilised · C.I.Solubilised Vat Brown 5 · Vat brown 5 solubilized (C.I. 73411) · C.I.Solubilised Vat Brown 5 :C.I.734141 · disodium [2,2'-binaphtho[2,1-b]thiophene]-1,1'-diyl disulphate
Identifiers & Physical Properties
| CAS No. | 4425-36-9 |
|---|---|
| Molecular formula | C24H12Na2O8S4 |
| Average molar mass | 602.6 g/mol |
| Monoisotopic mass | 601.92104059 g/mol |
| SMILES | O=S(=O)([O-])Oc1c(-c2sc3ccc4ccccc4c3c2OS(=O)(=O)[O-])sc2ccc3ccccc3c12.[Na+].[Na+] |
| InChIKey | QEUFEMFUODMTPB-UHFFFAOYSA-L |
| PubChem CID | 197813 |
| EC No. | 224-601-4 |
| DTXSID | DTXSID60196079 |
Chemical & Physical Properties
| Topological polar surface area | 206 |
|---|---|
| Hydrogen bond donors | 0 |
| Hydrogen bond acceptors | 10 |
| Rotatable bonds | 3 |
| Heavy atoms | 38 |
| Formal charge | 0 |
| Complexity | 915 |
Safety & Regulations
| GHS classification | Not Classified |
|---|---|
| Hazard Classes and Categories | Not Classified |
Preparation & Synthesis
Preparation
(a) in the presence of Pyridine , with Chlorosulfonic acid treatment C.I. Vat Brown 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 Brown 5. The above two kinds of situation after alkaline, filter out insolubles, remove Pyridine and salting out.