2-Chloroethyl p-toluenesulfonate

Also known as: β-Chloroethyl p-toluenesulfonate, 2-Chloroethyl 4-methylbenzenesulfonate, 2-(p-Toluenesulfonyloxy)ethyl chloride, p-Toluenesulfonic acid 2-chloroethyl ester, 2-Chloroethyl tosylate, Ethanol, 2-chloro-, 4-methylbenzenesulfonate, NSC 6079

2-Chloroethyl p-toluenesulfonate (CAS 80-41-1) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C9H11ClO3S and a molecular weight of 234.700 g/mol. Key properties include a melting point of 157-161ºC, a boiling point of 393.3±0.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 185.5±20.9 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 80-41-1
Jingsj CID: J-40842-4
Molecular Formula: C₉H₁₁ClO₃S
Molecular Weight: 234.700 g/mol
Category: Solvents
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	157-161ºC
Boiling Point	393.3±0.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	185.5±20.9 °C
Exact Mass	234.011749
PSA	51.75000
LogP	1.90
Vapor Pressure	0.0±0.8 mmHg at 25°C
Refractive Index	1.529

GHS Safety & Compliance

IrritantSignal word: Warning

H302 — Harmful if swallowed

Frequently Asked Questions

What is the CAS number of 2-Chloroethyl p-toluenesulfonate?

The CAS number of 2-Chloroethyl p-toluenesulfonate is 80-41-1.

What are the molecular formula and molecular weight of 2-Chloroethyl p-toluenesulfonate?

2-Chloroethyl p-toluenesulfonate has molecular formula C9H11ClO3S and molecular weight 234.700 g/mol.

Is 2-Chloroethyl p-toluenesulfonate hazardous?

2-Chloroethyl p-toluenesulfonate has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.

What are the upstream and downstream products of 2-Chloroethyl p-toluenesulfonate?

For 2-Chloroethyl p-toluenesulfonate, Upstream Products: p-Toluenesulfonyl chloride, 1-Bromo-2-chloroethane, Methyl p-toluenesulfonate; Downstream Products: 4-Bromophenyl 2-chloroethyl ether, 4-(2-Chloroethoxy)benzaldehyde, 2-Chloroethyl Benzoate.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "2-Chloroethyl p-toluenesulfonate (CAS 80-41-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40842-4 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.