3-Mercaptobenzoic acid
Also known as: 3-Mercaptobenzoic acid, 3-Sulfanylbenzoic acid, m-Mercaptobenzoic acid, NSC 32021, 3-Sulfanylbenzenecarboxylic acid, Benzoic acid, 3-mercapto-, MFCD00238636
3-Mercaptobenzoic acid (CAS 4869-59-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H6O2S and a molecular weight of 154.186 g/mol. Key properties include a melting point of 144-147 °C(lit.), a boiling point of 322.7±25.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 149.0±23.2 °C. It is classified under GHS with signal word Danger and hazard statements H315 — Causes skin irritation, H318 — Causes serious eye damage and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4869-59-4
- Jingsj CID
- J-44974-1
- Molecular Formula
- C7H6O2S
- Molecular Weight
- 154.186 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 144-147 °C(lit.) |
|---|---|
| Boiling Point | 322.7±25.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 149.0±23.2 °C |
| Exact Mass | 154.008850 |
| PSA | 76.10000 |
| LogP | 2.28 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.642 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H318 — Causes serious eye damage
- H335 — May cause respiratory irritation
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-Mercaptobenzoic acid?
The CAS number of 3-Mercaptobenzoic acid is 4869-59-4.
What are the molecular formula and molecular weight of 3-Mercaptobenzoic acid?
3-Mercaptobenzoic acid has molecular formula C7H6O2S and molecular weight 154.186 g/mol.
Is 3-Mercaptobenzoic acid hazardous?
3-Mercaptobenzoic acid has GHS signal word Danger and hazard statements H315 — Causes skin irritation; H318 — Causes serious eye damage; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 3-Mercaptobenzoic acid?
For 3-Mercaptobenzoic acid, Upstream Products: 3-(Chlorosulfonyl)benzoic acid, 3-Iodobenzoic acid, 3,3'-Dithiobisbenzoic acid; Downstream Products: 3-(Methylthio)benzoic acid, 3-(Methylsulfonyl)benzoic acid, 3,3'-Dithiobisbenzoic 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. "3-Mercaptobenzoic acid (CAS 4869-59-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44974-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.