2-Thiopheneacetic acid
Also known as: 2-Thienylacetic acid, Thiophene-2-acetic acid, 2-(Thiophen-2-yl)acetic acid, 2-Thenylacetic acid, 2-(2-Thienyl)acetic acid
2-Thiopheneacetic acid (CAS 1918-77-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H6O2S and a molecular weight of 142.18 g/mol. Key properties include a melting point of 63-64 °C(lit.), a boiling point of 269.2±15.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 116.6±20.4 °C. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1918-77-0
- Jingsj CID
- J-44000-6
- Molecular Formula
- C6H6O2S
- Molecular Weight
- 142.18 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 63-64 °C(lit.) |
|---|---|
| Boiling Point | 269.2±15.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 116.6±20.4 °C |
| Exact Mass | 142.008850 |
| PSA | 65.54000 |
| LogP | 1.18 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.587 |
GHS Safety & Compliance
- H314 — Causes severe skin burns and eye damage
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-Thiopheneacetic acid?
The CAS number of 2-Thiopheneacetic acid is 1918-77-0.
What are the molecular formula and molecular weight of 2-Thiopheneacetic acid?
2-Thiopheneacetic acid has molecular formula C6H6O2S and molecular weight 142.18 g/mol.
Is 2-Thiopheneacetic acid hazardous?
2-Thiopheneacetic acid has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of 2-Thiopheneacetic acid?
For 2-Thiopheneacetic acid, Upstream Products: 2-Thiophenecarboxaldehyde, Bromoform, Ethanethiol; Downstream Products: 3-(4-fluorophenyl)-2-thiophen-2-ylacrylic acid, 2-Thiopheneacetyl chloride, (±)-Rotigotine.
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-Thiopheneacetic acid (CAS 1918-77-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44000-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.