3,4-Dimethylbenzenethiol
Also known as: 3,4-Dimethylthiophenol, 4-Mercapto-o-xylene, o-Xylene-4-thiol, Vortioxetine Impurity 42, 3,4-Dimethylbenzothiol, Benzenethiol, 3,4-dimethyl-
3,4-Dimethylbenzenethiol (CAS 18800-53-8) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C8H10S and a molecular weight of 138.230 g/mol. Key properties include a boiling point of 222.1±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 90.0±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 18800-53-8
- Jingsj CID
- J-1990821-5
- Molecular Formula
- C8H10S
- Molecular Weight
- 138.230 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 222.1±9.0 °C at 760 mmHg |
|---|---|
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 90.0±0.0 °C |
| Exact Mass | 138.050323 |
| PSA | 38.80000 |
| LogP | 3.44 |
| Vapor Pressure | 0.2±0.4 mmHg at 25°C |
| Refractive Index | 1.569 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- 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-Dimethylbenzenethiol?
The CAS number of 3,4-Dimethylbenzenethiol is 18800-53-8.
What are the molecular formula and molecular weight of 3,4-Dimethylbenzenethiol?
3,4-Dimethylbenzenethiol has molecular formula C8H10S and molecular weight 138.230 g/mol.
Is 3,4-Dimethylbenzenethiol hazardous?
3,4-Dimethylbenzenethiol has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 3,4-Dimethylbenzenethiol?
For 3,4-Dimethylbenzenethiol, Upstream Products: 3,4-Dimethylaniline, o-xylene, 3,4-dimethylbenzenesulfonyl chloride; Downstream Products: 1,2-Dimethyldibenzothiophene, 2,3-Dimethyldibenzo[b,d]thiophene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,4-Dimethylbenzenethiol (CAS 18800-53-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990821-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.