2-Ethyl-5-methylthiophene
Also known as: 2-Ethyl-5-methylthiophen, 2-Methyl-5-ethylthiophene, 5-Methyl-2-ethylthiophene, Thiophene, 2-ethyl-5-methyl-, 2-Aethyl-5-methyl-thiophen, MFCD00053128
2-Ethyl-5-methylthiophene (CAS 40323-88-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H10S and a molecular weight of 126.219 g/mol. Key properties include a boiling point of 160.0±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 31.4±4.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 40323-88-4
- Jingsj CID
- J-42819-3
- Molecular Formula
- C7H10S
- Molecular Weight
- 126.219 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 160.0±0.0 °C at 760 mmHg |
|---|---|
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 31.4±4.9 °C |
| Exact Mass | 126.050323 |
| PSA | 28.24000 |
| LogP | 3.35 |
| Vapor Pressure | 3.2±0.2 mmHg at 25°C |
| Refractive Index | 1.522 |
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 2-Ethyl-5-methylthiophene?
The CAS number of 2-Ethyl-5-methylthiophene is 40323-88-4.
What are the molecular formula and molecular weight of 2-Ethyl-5-methylthiophene?
2-Ethyl-5-methylthiophene has molecular formula C7H10S and molecular weight 126.219 g/mol.
What are the upstream and downstream products of 2-Ethyl-5-methylthiophene?
For 2-Ethyl-5-methylthiophene, Upstream Products: 1-(5-Methyl-2-thienyl)ethanone, 2-ethyl-5-methylfuran, 2,5-Dimethylthiophene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Ethyl-5-methylthiophene (CAS 40323-88-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42819-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.