p-Toluenesulfonyl chloride
Also known as: 4-Methylbenzenesulfonyl chloride, Tosyl chloride, TsCl, p-Tosyl chloride, 4-Toluenesulfonyl chloride, p-Toluenesulphonyl chloride
p-Toluenesulfonyl chloride (CAS 98-59-9) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C7H7ClO2S and a molecular weight of 190.647 g/mol. Key properties include a melting point of 65-69 °C(lit.), a boiling point of 265.3±19.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 114.3±21.5 °C. It is classified under GHS with signal word Danger and hazard statements 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.
- 98-59-9
- Jingsj CID
- J-1106845-5
- Molecular Formula
- C7H7ClO2S
- Molecular Weight
- 190.647 g/mol
- Category
- Solvents
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 65-69 °C(lit.) |
|---|---|
| Boiling Point | 265.3±19.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 114.3±21.5 °C |
| Exact Mass | 189.985519 |
| PSA | 42.52000 |
| LogP | 2.45 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.545 |
| Additional Property | hydrolyses |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H318 — Causes serious eye damage
Customs & Trade Information
| HS Code | 2904909090 |
|---|---|
| Summary | HS:2904909090 sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of p-Toluenesulfonyl chloride?
The CAS number of p-Toluenesulfonyl chloride is 98-59-9.
What are the molecular formula and molecular weight of p-Toluenesulfonyl chloride?
p-Toluenesulfonyl chloride has molecular formula C7H7ClO2S and molecular weight 190.647 g/mol.
Is p-Toluenesulfonyl chloride hazardous?
p-Toluenesulfonyl chloride has GHS signal word Danger and hazard statements H315 — Causes skin irritation; H318 — Causes serious eye damage.
What are the upstream and downstream products of p-Toluenesulfonyl chloride?
For p-Toluenesulfonyl chloride, Upstream Products: p-Toluenethiol, p-Tolyl disulfide, 2-Chloro-1,3-dimethylimidazolidinium chloride; Downstream Products: N-(6-methoxy-8-quinolyl)-p-toluenesulfonamide, 3,3'-(1,6-Hexanediyldioxy)bisbenzaldehyde.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "p-Toluenesulfonyl chloride (CAS 98-59-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1106845-5 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.