3-(acetylamino)thiophene-2-carboxylic acid
Also known as: 3-acetamidothiophene-2-carboxylic acid, 3-acetamido-2-thiophenecarboxylic acid, 3-acetylaminothiophene-2-carboxylic acid, 2-thiophenecarboxylic acid, 3-(acetylamino)-, BUTTPARK 99\18-20
3-(acetylamino)thiophene-2-carboxylic acid (CAS 50901-18-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H7NO3S and a molecular weight of 185.200 g/mol. Key properties include a melting point of 200-202ºC, a boiling point of 447.5±30.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 224.4±24.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 50901-18-3
- Jingsj CID
- J-857698-5
- Molecular Formula
- C7H7NO3S
- Molecular Weight
- 185.200 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 200-202ºC |
|---|---|
| Boiling Point | 447.5±30.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 224.4±24.6 °C |
| Exact Mass | 185.014664 |
| PSA | 94.64000 |
| LogP | 1.56 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.658 |
| Storage Conditions | 2-8°C |
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 3-(acetylamino)thiophene-2-carboxylic acid?
The CAS number of 3-(acetylamino)thiophene-2-carboxylic acid is 50901-18-3.
What are the molecular formula and molecular weight of 3-(acetylamino)thiophene-2-carboxylic acid?
3-(acetylamino)thiophene-2-carboxylic acid has molecular formula C7H7NO3S and molecular weight 185.200 g/mol.
What are the upstream and downstream products of 3-(acetylamino)thiophene-2-carboxylic acid?
For 3-(acetylamino)thiophene-2-carboxylic acid, Upstream Products: Methyl 3-aminothiophene-2-carboxylate, Acetyl chloride, 3-Amino-2-thiophenecarboxylic acid; Downstream Products: N-(3-Thienyl)acetamide.
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-(acetylamino)thiophene-2-carboxylic acid (CAS 50901-18-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-857698-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.