Methyl 3-oxotetrahydrothiophene-2-carboxylate
Also known as: methyl 3-oxothiolane-2-carboxylate, methyl tetrahydro-3-oxo-2-thenoate, 2-methoxycarbonyl-3-oxotetrahydrothiophene, 2-carbomethoxy-2,3,4,5-tetrahydrothiophen-3-one, methyl 3-keto-tetrahydrothiophene-2-carboxylate, methyl 3-oxo-2,3,4,5-tetrahydrothiophene-2-carboxylate, tetrahydro-3-oxo-2-thiophenecarboxylic acid methyl ester
Methyl 3-oxotetrahydrothiophene-2-carboxylate (CAS 2689-69-2) 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 38ºC, 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. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2689-69-2
- Jingsj CID
- J-13547-7
- 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 | 38ºC |
|---|---|
| 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 | -0.18 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.528 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H319 — Causes serious eye irritation
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 3-oxotetrahydrothiophene-2-carboxylate?
The CAS number of Methyl 3-oxotetrahydrothiophene-2-carboxylate is 2689-69-2.
What are the molecular formula and molecular weight of Methyl 3-oxotetrahydrothiophene-2-carboxylate?
Methyl 3-oxotetrahydrothiophene-2-carboxylate has molecular formula C6H8O3S and molecular weight 160.191 g/mol.
Is Methyl 3-oxotetrahydrothiophene-2-carboxylate hazardous?
Methyl 3-oxotetrahydrothiophene-2-carboxylate has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H319 — Causes serious eye irritation.
What are the upstream and downstream products of Methyl 3-oxotetrahydrothiophene-2-carboxylate?
For Methyl 3-oxotetrahydrothiophene-2-carboxylate, Upstream Products: Methyl 3-((2-methoxy-2-oxoethyl)thio)propanoate, Methyl thioglycolate, acrylic acid methyl ester; Downstream Products: Methyl (3S)-3-hydroxypentanoate, 6,7-Dihydrothieno[3,2-d]pyrimidine-2,4-diol, 2,4-Dichloro-6,7-dihydrothieno[3,2-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 3-oxotetrahydrothiophene-2-carboxylate (CAS 2689-69-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-13547-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.