4-Oxo-4-(2-thienyl)butyric acid
Also known as: 2-Thiophenebutanoic acid, γ-oxo-, 3-(2-Thenoyl)propionic acid, 3-(2-Thenoyl)-propionic acid, 3-(α-Thenoyl)propionic acid, 4-Oxo-4-(2-thienyl)butanoic acid, 4-Oxo-4-(thiophen-2-yl)butanoic acid, 4-Oxo-4-thien-2-ylbutanoic acid, γ-Oxo-2-thiophenebutanoic acid, 4-Oxo-4-thiophen-2-yl-butyric acid
4-Oxo-4-(2-thienyl)butyric acid (CAS 4653-08-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H8O3S and a molecular weight of 184.21200 g/mol. Key properties include a melting point of 118-121 °C(lit.), a boiling point of 400.5ºC at 760mmHg, a density of 1.334g/cm3 and a flash point of 196ºC. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4653-08-1
- Jingsj CID
- J-43980-5
- Molecular Formula
- C8H8O3S
- Molecular Weight
- 184.21200 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 118-121 °C(lit.) |
|---|---|
| Boiling Point | 400.5ºC at 760mmHg |
| Density | 1.334g/cm3 |
| Flash Point | 196ºC |
| Exact Mass | 184.01900 |
| PSA | 82.61000 |
| LogP | 1.79560 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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 4-Oxo-4-(2-thienyl)butyric acid?
The CAS number of 4-Oxo-4-(2-thienyl)butyric acid is 4653-08-1.
What are the molecular formula and molecular weight of 4-Oxo-4-(2-thienyl)butyric acid?
4-Oxo-4-(2-thienyl)butyric acid has molecular formula C8H8O3S and molecular weight 184.21200 g/mol.
Is 4-Oxo-4-(2-thienyl)butyric acid hazardous?
4-Oxo-4-(2-thienyl)butyric acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Oxo-4-(2-thienyl)butyric acid (CAS 4653-08-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-43980-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.