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Basic information
- CAS
3263-31-8- Standard SMILES
CCOc1ccc2c(c1)S/C(=C1/Sc3cc(OCC)ccc3C1=O)C2=O- Molecular formula
- C20H16O4S2
- Average molar mass
- 384.47 g/mol
Names & identifiers
- Preferred name
- 6-ethoxy-2-(6-ethoxy-3-oxobenzo[b]thien-2(3H)-ylidene)benzo[b]thiophene-3(2H)-one
- English name
- 6-ethoxy-2-(6-ethoxy-3-oxobenzo[b]thien-2(3H)-ylidene)benzo[b]thiophene-3(2H)-one
- Molecular formula
- C20H16O4S2
- Molecular weight
- 384.47
Names & synonyms
BLUE 04BVat Orange RC.I.VATORANGE5Vat Orange 5Algol Orange RFAntinolo Orange RAmanthrene Orange RVat orange 5 (C.I. 73335)C.I.Vat Orange 5:C.I.73335Pigment organic indigo blue production thioindigo
Database identifiers
- CAS
3263-31-8- PubChem CID
- 6263734
- UNII
- 102OGV839M
- EC Number
- 221-869-4
- Nikkaji
- J137.979H
Properties
Physicochemical properties
- Boiling point
- 481.14 °C · 481.14°C (rough estimate)
- Density
- 1.3078 · 1.3078 (rough estimate)
- refractive index
- 1.436 · 1.4360 (estimate)
- FDA UNII
- 102 OGV839M · 102OGV839M
- EPA Substance Registry System
- -3 · Benzo[b]thiophen-3(2H)-one, 6-ethoxy-2-(6-ethoxy-3-oxobenzo[b]thien-2(3H)-ylidene)- (3263-31-8)
- TSCA
- TSCA listed
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
Safety data
- tsca
- TSCA listed
Chemistry & industry
Preparation methods
Preparation6-Ethoxybenzo[b]thiophen-3(2H)-one oxidation, the raw material or by carboxy amide route (FIAT 764-PB5626) or by Herz chlorinated sulfur method (FIAT 764-PB25626) preparation.
Upstream & downstream products
Upstream raw materials
Downstream products
Suppliers3 total
湖南韵邦生物科技股份有限公司0731-88532326 13319508186 · [email protected]
Shaanxi Didu New Materials Co. Ltd+86-86-17392712779 +86-13289823923 · [email protected]
湖南永齐化工有限公司0731-85561035 13319583233 · [email protected]
Related reactions
0 records
No reaction records under the current filter.
Compound notes
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