3-(Methylthio)thiophene
Also known as: 3-(Methylthio)thiophene, 3-(Methylsulfanyl)thiophene, 3-Thienylmethylsulfide, Methyl 3-thienyl sulfide, 3-Methylmercaptothiophene
3-(Methylthio)thiophene (CAS 20731-74-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H6S2 and a molecular weight of 130.231 g/mol. Key properties include a boiling point of 191.5±13.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 69.6±19.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 20731-74-2
- Jingsj CID
- J-1395523-2
- Molecular Formula
- C5H6S2
- Molecular Weight
- 130.231 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 191.5±13.0 °C at 760 mmHg |
|---|---|
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 69.6±19.8 °C |
| Exact Mass | 129.991089 |
| PSA | 53.54000 |
| LogP | 2.38 |
| Vapor Pressure | 0.7±0.4 mmHg at 25°C |
| Refractive Index | 1.599 |
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 3-(Methylthio)thiophene?
The CAS number of 3-(Methylthio)thiophene is 20731-74-2.
What are the molecular formula and molecular weight of 3-(Methylthio)thiophene?
3-(Methylthio)thiophene has molecular formula C5H6S2 and molecular weight 130.231 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-(Methylthio)thiophene (CAS 20731-74-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1395523-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.