1-Benzothiophene-3-carbaldehyde
Also known as: Benzo[b]thiophene-3-carboxaldehyde, Benzo[b]thiophene-3-carbaldehyde, Thianaphthene-3-carboxaldehyde, 3-Formylbenzo[b]thiophene, 1-Benzothiophene-3-carboxaldehyde, Benzothiophene-3-carboxaldehyde
1-Benzothiophene-3-carbaldehyde (CAS 5381-20-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H6OS and a molecular weight of 162.21 g/mol. Key properties include a melting point of 53-57 °C(lit.), a boiling point of 303.2±15.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 137.2±20.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5381-20-4
- Jingsj CID
- J-45822-0
- Molecular Formula
- C9H6OS
- Molecular Weight
- 162.21 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 53-57 °C(lit.) |
|---|---|
| Boiling Point | 303.2±15.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 137.2±20.4 °C |
| Exact Mass | 162.013931 |
| PSA | 45.31000 |
| LogP | 3.80 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.720 |
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-Benzothiophene-3-carbaldehyde?
The CAS number of 1-Benzothiophene-3-carbaldehyde is 5381-20-4.
What are the molecular formula and molecular weight of 1-Benzothiophene-3-carbaldehyde?
1-Benzothiophene-3-carbaldehyde has molecular formula C9H6OS and molecular weight 162.21 g/mol.
What are the upstream and downstream products of 1-Benzothiophene-3-carbaldehyde?
For 1-Benzothiophene-3-carbaldehyde, Upstream Products: 3-bromo-1-benzothiophene, N,N-Dimethylformamide, Dichloromethyl n-butyl ether; Downstream Products: 1-benzothiophene-3-carbonyl chloride, 1-benzothiophen-3-ylmethanol, Benzo[b]thiophene-3-carboxylic acid.
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-Benzothiophene-3-carbaldehyde (CAS 5381-20-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45822-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.