4-Nitrothiophene-2-carboxylic acid
Also known as: 2-Thiophenecarboxylic acid, 4-nitro-, 4-Nitro-2-thiophenecarboxylic acid, 4-Nitro-thiophene-2-carboxylic acid, 2-Carboxy-4-nitrothiophene, AKOS 93842, MFCD07787605
4-Nitrothiophene-2-carboxylic acid (CAS 13138-70-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H3NO4S and a molecular weight of 173.14700 g/mol. Key properties include a boiling point of 383.3ºC at 760mmHg, a density of 1.676g/cm3 and a flash point of 185.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 13138-70-0
- Jingsj CID
- J-20660-0
- Molecular Formula
- C5H3NO4S
- Molecular Weight
- 173.14700 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 383.3ºC at 760mmHg |
|---|---|
| Density | 1.676g/cm3 |
| Flash Point | 185.6ºC |
| Exact Mass | 172.97800 |
| PSA | 111.36000 |
| LogP | 1.87770 |
| Vapor Pressure | 1.47E-06mmHg at 25°C |
| Refractive Index | 1.659 |
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-Nitrothiophene-2-carboxylic acid?
The CAS number of 4-Nitrothiophene-2-carboxylic acid is 13138-70-0.
What are the molecular formula and molecular weight of 4-Nitrothiophene-2-carboxylic acid?
4-Nitrothiophene-2-carboxylic acid has molecular formula C5H3NO4S and molecular weight 173.14700 g/mol.
What are the upstream and downstream products of 4-Nitrothiophene-2-carboxylic acid?
For 4-Nitrothiophene-2-carboxylic acid, Upstream Products: 2-Thiophenecarboxylic acid, 4-Nitrothiophene-2-carbonitrile, 2-Thiophenecarboxaldehyde; Downstream Products: 4-Amino-2-thiophenecarboxylic acid, 1-(4-nitrothiophen-2-yl)ethanone, Methyl 5-methyl-4-nitrothiophene-2-carboxylate.
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-Nitrothiophene-2-carboxylic acid (CAS 13138-70-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-20660-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.