2(5H)-Thiophenone
2(5H)-噻吩酮
Also known as: thiophen-2(5H)-one, 2H-thiophen-5-one, 2,5-dihydrothiophenone, 2,5-dihydrothiophene-2-one, 2-thiolen-2-one, 3-thiolen-2-one, 5H-thiophenone, 2-butenoic acid, 4-mercapto-, gamma-(thio lactone), thiophene-2-one, MFCD00074876, I09-3142
2(5H)-Thiophenone (CAS 3354-32-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H4OS and a molecular weight of 100.13900 g/mol. It is also known as thiophen-2(5H)-one, 2H-thiophen-5-one and 2,5-dihydrothiophenone. Key properties include a boiling point of 208.1ºC at 760mmHg, a density of 1.284g/cm3 and a flash point of 92.3ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3354-32-3
- Jingsj CID
- J-37564-5
- Molecular Formula
- C4H4OS
- Chinese Name
- 2(5H)-噻吩酮
- Molecular Weight
- 100.13900 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 208.1ºC at 760mmHg |
|---|---|
| Density | 1.284g/cm3 |
| Flash Point | 92.3ºC |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of 2(5H)-Thiophenone?
The CAS number of 2(5H)-Thiophenone is 3354-32-3.
What are the molecular formula and molecular weight of 2(5H)-Thiophenone?
2(5H)-Thiophenone has molecular formula C4H4OS and molecular weight 100.13900 g/mol.
Is 2(5H)-Thiophenone hazardous?
2(5H)-Thiophenone has GHS signal word Warning.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2(5H)-Thiophenone (CAS 3354-32-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-37564-5 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.