1-(3-aminothiophen-2-yl)ethanone
Also known as: 2-Acetyl-3-aminothiophene, 2-acetylthiophene-3-amine, 1-(3-aminothien-2-yl)ethanone, 1-(3-amino-2-thienyl)ethan-1-one, 1-(3-aminothiophen-2-yl)ethan-1-one, 1-(3-amino-thiophen-2-yl)-ethanone
1-(3-aminothiophen-2-yl)ethanone (CAS 31968-33-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H7NOS and a molecular weight of 141.191 g/mol. Key properties include a melting point of 84-88°C, a boiling point of 323.9±22.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 149.7±22.3 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 31968-33-9
- Jingsj CID
- J-35018-5
- Molecular Formula
- C6H7NOS
- Molecular Weight
- 141.191 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 84-88°C |
|---|---|
| Boiling Point | 323.9±22.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 149.7±22.3 °C |
| Exact Mass | 141.024841 |
| PSA | 71.33000 |
| LogP | 1.21 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.607 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H319 — Causes serious eye 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 1-(3-aminothiophen-2-yl)ethanone?
The CAS number of 1-(3-aminothiophen-2-yl)ethanone is 31968-33-9.
What are the molecular formula and molecular weight of 1-(3-aminothiophen-2-yl)ethanone?
1-(3-aminothiophen-2-yl)ethanone has molecular formula C6H7NOS and molecular weight 141.191 g/mol.
Is 1-(3-aminothiophen-2-yl)ethanone hazardous?
1-(3-aminothiophen-2-yl)ethanone has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 1-(3-aminothiophen-2-yl)ethanone?
For 1-(3-aminothiophen-2-yl)ethanone, Upstream Products: 2-Chloroacrylonitrile, 1-sulfanylpropan-2-one.
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-(3-aminothiophen-2-yl)ethanone (CAS 31968-33-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35018-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.