3-Hydroxybenzenethiol
Also known as: 3-Mercaptophenol, 3-Hydroxythiophenol, m-Hydroxybenzenethiol, m-Mercaptophenol, 3-Sulfanylphenol, Monothioresorcinol
3-Hydroxybenzenethiol (CAS 40248-84-8) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C6H6OS and a molecular weight of 126.176 g/mol. Key properties include a melting point of 16-17 °C(lit.), a boiling point of 256.3±23.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 108.8±22.6 °C. It is classified under GHS with signal word Danger and hazard statements H317 — May cause an allergic skin reaction and H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 40248-84-8
- Jingsj CID
- J-1318709-2
- Molecular Formula
- C6H6OS
- Molecular Weight
- 126.176 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 16-17 °C(lit.) |
|---|---|
| Boiling Point | 256.3±23.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 108.8±22.6 °C |
| Exact Mass | 126.013931 |
| PSA | 59.03000 |
| LogP | 1.81 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.642 |
GHS Safety & Compliance
- H317 — May cause an allergic skin reaction
- H318 — Causes serious eye damage
Customs & Trade Information
| HS Code | 2930909090 |
|---|---|
| Summary | 2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 3-Hydroxybenzenethiol?
The CAS number of 3-Hydroxybenzenethiol is 40248-84-8.
What are the molecular formula and molecular weight of 3-Hydroxybenzenethiol?
3-Hydroxybenzenethiol has molecular formula C6H6OS and molecular weight 126.176 g/mol.
Is 3-Hydroxybenzenethiol hazardous?
3-Hydroxybenzenethiol has GHS signal word Danger and hazard statements H317 — May cause an allergic skin reaction; H318 — Causes serious eye damage.
What are the upstream and downstream products of 3-Hydroxybenzenethiol?
For 3-Hydroxybenzenethiol, Upstream Products: 3-Methoxybenzenethiol, 3,3'-Dihydroxydiphenyl disulfide, 3-Aminobenzenethiol; Downstream Products: 3,3'-Dihydroxydiphenyl disulfide, 3-(Methylthio)phenol.
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-Hydroxybenzenethiol (CAS 40248-84-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1318709-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.