1-(5-Methyl-2-thienyl)propan-1-one
Also known as: 2-Methyl-5-propionylthiophene, 1-(5-methylthiophen-2-yl)propan-1-one, 1-(5-methyl-2-thienyl)-1-propanone, 5-methyl-2-propanoylthiophene, 5-methyl-2-thiophenyl ethyl ketone
1-(5-Methyl-2-thienyl)propan-1-one (CAS 59303-13-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H10OS and a molecular weight of 154.22900 g/mol. Key properties include a boiling point of 251.1ºC at 760 mmHg, a density of 1.076g/cm3 and a flash point of 105.7ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 59303-13-8
- Jingsj CID
- J-1101573-9
- Molecular Formula
- C8H10OS
- Molecular Weight
- 154.22900 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 251.1ºC at 760 mmHg |
|---|---|
| Density | 1.076g/cm3 |
| Flash Point | 105.7ºC |
| Exact Mass | 154.04500 |
| PSA | 45.31000 |
| LogP | 2.64920 |
| Refractive Index | 1.528 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
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 1-(5-Methyl-2-thienyl)propan-1-one?
The CAS number of 1-(5-Methyl-2-thienyl)propan-1-one is 59303-13-8.
What are the molecular formula and molecular weight of 1-(5-Methyl-2-thienyl)propan-1-one?
1-(5-Methyl-2-thienyl)propan-1-one has molecular formula C8H10OS and molecular weight 154.22900 g/mol.
Is 1-(5-Methyl-2-thienyl)propan-1-one hazardous?
1-(5-Methyl-2-thienyl)propan-1-one has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1-(5-Methyl-2-thienyl)propan-1-one (CAS 59303-13-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1101573-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.