3,4-Dichlorobenzenethiol
3,4-二氯苯硫酚
Also known as: 3,4-Dichlorothiophenol, 3,4-Dichlorophenylmercaptan, Benzenethiol, 3,4-dichloro-, 3,4-dichlorobenzene-1-thiol, 3,4-Dichlorothiophenol 98%, MFCD00004840, EINECS 227-485-3
3,4-Dichlorobenzenethiol (CAS 5858-17-3) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C6H4Cl2S and a molecular weight of 179.067 g/mol. It is also known as 3,4-Dichlorothiophenol, 3,4-Dichlorophenylmercaptan and Benzenethiol, 3,4-dichloro-. Key properties include a melting point of 21 °C, a boiling point of 255.6±0.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 99.2±21.2 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5858-17-3
- Jingsj CID
- J-1993064-2
- Molecular Formula
- C6H4Cl2S
- Chinese Name
- 3,4-二氯苯硫酚
- Molecular Weight
- 179.067 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 21 °C |
|---|---|
| Boiling Point | 255.6±0.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 99.2±21.2 °C |
| Exact Mass | 177.941071 |
| PSA | 38.80000 |
| LogP | 3.81 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.620 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- 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 3,4-Dichlorobenzenethiol?
The CAS number of 3,4-Dichlorobenzenethiol is 5858-17-3.
What are the molecular formula and molecular weight of 3,4-Dichlorobenzenethiol?
3,4-Dichlorobenzenethiol has molecular formula C6H4Cl2S and molecular weight 179.067 g/mol.
Is 3,4-Dichlorobenzenethiol hazardous?
3,4-Dichlorobenzenethiol has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H318 — Causes serious eye damage.
What are the upstream and downstream products of 3,4-Dichlorobenzenethiol?
For 3,4-Dichlorobenzenethiol, Upstream Products: 3,4-Dichlorobenzenesulfonyl chloride, 3,4-Dichloroaniline, 1,2,4-Trichlorobenzene.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,4-Dichlorobenzenethiol (CAS 5858-17-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1993064-2 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.