![Molecular structure of 3-Aminobenzo[b]thiophene-2-carboxylic acid (CAS 40142-71-0)](/images/chem_structures_svg/007/40142-71-0.svg)
3-Aminobenzo[b]thiophene-2-carboxylic acid
Also known as: 3-Amino-1-benzothiophene-2-carboxylic acid, 3-Amino-2-carboxybenzo[b]thiophene, 3-AMINO-BENZENETHIOPHENE-2-CARBOXYLIC ACID, 3-AMINOBENZO[B]THIOPHENE-2-CARBOXYLIC ACID, 3-aminobenzothiophene-2-carboxylic acid, Benzo[b]thiophene-2-carboxylic acid, 3-amino-, BUTTPARK 52\11-75
3-Aminobenzo[b]thiophene-2-carboxylic acid (CAS 40142-71-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H7NO2S and a molecular weight of 193.22200 g/mol. Key properties include a boiling point of 430.9ºC at 760mmHg, a density of 1.511g/cm3 and a flash point of 214.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 40142-71-0
- Jingsj CID
- J-1360574-8
- Molecular Formula
- C9H7NO2S
- Molecular Weight
- 193.22200 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 430.9ºC at 760mmHg |
|---|---|
| Density | 1.511g/cm3 |
| Flash Point | 214.4ºC |
| Exact Mass | 193.02000 |
| PSA | 91.56000 |
| LogP | 2.76290 |
| Refractive Index | 1.78 |
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-Aminobenzo[b]thiophene-2-carboxylic acid?
The CAS number of 3-Aminobenzo[b]thiophene-2-carboxylic acid is 40142-71-0.
What are the molecular formula and molecular weight of 3-Aminobenzo[b]thiophene-2-carboxylic acid?
3-Aminobenzo[b]thiophene-2-carboxylic acid has molecular formula C9H7NO2S and molecular weight 193.22200 g/mol.
What are the upstream and downstream products of 3-Aminobenzo[b]thiophene-2-carboxylic acid?
For 3-Aminobenzo[b]thiophene-2-carboxylic acid, Downstream Products: Benzo[b]thiophen-3-ol.
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-Aminobenzo[b]thiophene-2-carboxylic acid (CAS 40142-71-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1360574-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.