Methyl 4-oxotetrahydrothiophene-3-carboxylate
Also known as: 4-Carbomethoxytetrahydro-3-thiophenone, Methyl 4-oxo-2,3,4,5-tetrahydrothiophene-3-carboxylate, Methyl tetrahydro-4-oxo-3-thiophenecarboxylate, Tetrahydro-4-oxo-3-thiophenecarboxylic acid methyl ester, 4-Oxotetrahydrothiophene-3-carboxylic acid methyl ester, 4-Carbomethoxy-2,3,4,5-tetrahydro-3-thiophenone, Methyl 3-oxotetrahydrothiophene-4-carboxylate
Methyl 4-oxotetrahydrothiophene-3-carboxylate (CAS 2689-68-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H8O3S and a molecular weight of 160.191 g/mol. Key properties include a melting point of 38-41ºC, a boiling point of 248.4±40.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 116.7±15.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2689-68-1
- Jingsj CID
- J-1492712-9
- Molecular Formula
- C6H8O3S
- Molecular Weight
- 160.191 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 38-41ºC |
|---|---|
| Boiling Point | 248.4±40.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 116.7±15.4 °C |
| Exact Mass | 160.019409 |
| PSA | 68.67000 |
| LogP | -0.10 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.528 |
| Storage Conditions | 2~8℃ |
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Methyl 4-oxotetrahydrothiophene-3-carboxylate?
The CAS number of Methyl 4-oxotetrahydrothiophene-3-carboxylate is 2689-68-1.
What are the molecular formula and molecular weight of Methyl 4-oxotetrahydrothiophene-3-carboxylate?
Methyl 4-oxotetrahydrothiophene-3-carboxylate has molecular formula C6H8O3S and molecular weight 160.191 g/mol.
What are the upstream and downstream products of Methyl 4-oxotetrahydrothiophene-3-carboxylate?
For Methyl 4-oxotetrahydrothiophene-3-carboxylate, Upstream Products: Methyl 3-((2-methoxy-2-oxoethyl)thio)propanoate, acrylic acid methyl ester, Methyl thioglycolate; Downstream Products: Methyl 4-aminothiophene-3-carboxylate hydrochloride, Tetrahydrothiophen-3-one, 2,4-dichloro-5,7-dihydrothieno[3,4-d]pyrimidine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Methyl 4-oxotetrahydrothiophene-3-carboxylate (CAS 2689-68-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1492712-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.