![Molecular structure of Benzo[b]thiophen-3-ol (CAS 520-72-9)](/images/chem_structures_svg/033/520-72-9.svg)
Benzo[b]thiophen-3-ol
Also known as: 1-Benzothiophene-3-ol, 3-Hydroxybenzothiophene, 3-Hydroxythianaphthene, 3-hydroxy-thionaphthene, 3-hydroxybenzo[b]thiophene, BENZO(b)THIOPHENE-3-OL, Benzo[b]thiophene-3-ol, Benzothiophen-3-ol, benzo[b]thiophen-3-ol, hydroxy benzo[b]thiophene
Benzo[b]thiophen-3-ol (CAS 520-72-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H6OS and a molecular weight of 150.198 g/mol. Key properties include a boiling point of 301.6±15.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 136.2±20.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 520-72-9
- Jingsj CID
- J-1336403-9
- Molecular Formula
- C8H6OS
- Molecular Weight
- 150.198 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 301.6±15.0 °C at 760 mmHg |
|---|---|
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 136.2±20.4 °C |
| Exact Mass | 150.013931 |
| PSA | 48.47000 |
| LogP | 3.64 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.727 |
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 Benzo[b]thiophen-3-ol?
The CAS number of Benzo[b]thiophen-3-ol is 520-72-9.
What are the molecular formula and molecular weight of Benzo[b]thiophen-3-ol?
Benzo[b]thiophen-3-ol has molecular formula C8H6OS and molecular weight 150.198 g/mol.
What are the upstream and downstream products of Benzo[b]thiophen-3-ol?
For Benzo[b]thiophen-3-ol, Upstream Products: Methyl 2-(methylthio)benzoate, Benzo[b]thiophen-3(2H)-one, 1-Benzothiophene; Downstream Products: 1-Benzothiophene, Benzo[b]thiophene-3(2H)-one 1,1-dioxide, Benzo[b]thiophen-3(2H)-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. "Benzo[b]thiophen-3-ol (CAS 520-72-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1336403-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.