Ethyl 4-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxylate CAS 2092073-43-1
| CAS No. | 2092073-43-1 |
| Molecular Formula | C11H12O3S |
| Molecular Weight | 224.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Ethyl 4-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxylate (CAS 2092073-43-1), molecular formula C11H12O3S and molecular weight 224.28 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H12O3S, Ethyl 4-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxylate contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 224.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO manufactures Ethyl 4-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H12O3S |
| Molecular Weight | 224.28 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Sulfur Atoms | 1 |
Recommended Standards
- Ethyl 4-[(aminocarbonothioyl)amino]benzoate (CAS 23051-16-3)
- Ethyl 5-ethylimidazo[2,1-b]thiazole-6-carboxylate (CAS 488115-57-7)
- Ethyl 3-thioureidobenzoate (CAS 20967-87-7)
- Imidazo[4,5,1-kl]phenothiazine (CAS 202-25-5)
- 1-(4-Chloropyridin-2-yl)thiourea (CAS 1824186-34-6)
- 4-(Difluoromethyl)cycloheptan-1-one (CAS 1803598-75-5)
- 6-ß-Bromo Androstenedione (CAS 38632-00-7)
- 4-(tert-Butylsulfanyl)benzenecarbaldehyde 4-(tert-butylthio)benzaldehyde 88357-16-8 (CAS 88357-16-8)
- 5-Hydroxy-2-methylbenzonitrile (CAS 101349-82-0)
- 1-(4-Methylthiophene-3-carbonyl)piperidine-2-carboxylic acid (CAS 1501369-48-7)
- Dimethyl 1-(2,4-dimethoxyphenyl)-1H-1,2,3-triazole-4,5-dicarboxylate (CAS 895645-44-0)
- 2-((4-Chloro-2-methylphenyl)carbamoyl)benzoic acid (CAS 19368-31-1)
- Isobutyramide-d7 (CAS 1224439-42-2)
- Tau Peptide (274-288) trifluoroacetate salt (CAS 330456-39-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com