3-Hydroxy-4-methyl-2(5H)-thiophenone
Also known as: 3-Hydroxy-4-methylthiophen-2(5H)-one, 4-Hydroxy-3-methyl-2H-thiophen-5-one, Cefalexin EP Impurity D, Cefadroxil EP Impurity G, Cefradine EP Impurity F, Cefalexin Impurity D, Cefalexin Impurity G, Cephalexin Impurity D, UNII-82S555S2NY
3-Hydroxy-4-methyl-2(5H)-thiophenone (CAS 34876-35-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H6O2S and a molecular weight of 130.165 g/mol. Key properties include a boiling point of 305.9±42.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 138.8±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 34876-35-2
- Jingsj CID
- J-1398119-6
- Molecular Formula
- C5H6O2S
- Molecular Weight
- 130.165 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 305.9±42.0 °C at 760 mmHg |
|---|---|
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 138.8±27.9 °C |
| Exact Mass | 130.008850 |
| PSA | 62.60000 |
| LogP | 0.55 |
| Vapor Pressure | 0.0±1.5 mmHg at 25°C |
| Refractive Index | 1.637 |
Frequently Asked Questions
What is the CAS number of 3-Hydroxy-4-methyl-2(5H)-thiophenone?
The CAS number of 3-Hydroxy-4-methyl-2(5H)-thiophenone is 34876-35-2.
What are the molecular formula and molecular weight of 3-Hydroxy-4-methyl-2(5H)-thiophenone?
3-Hydroxy-4-methyl-2(5H)-thiophenone has molecular formula C5H6O2S and molecular weight 130.165 g/mol.
What are the upstream and downstream products of 3-Hydroxy-4-methyl-2(5H)-thiophenone?
For 3-Hydroxy-4-methyl-2(5H)-thiophenone, Upstream Products: Cephalexin, 3-Methylthiophene, Cefadroxil.
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-Hydroxy-4-methyl-2(5H)-thiophenone (CAS 34876-35-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1398119-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.