Phenyl p-toluenesulfonate

Also known as: p-toluenesulfonic acid phenyl ester, phenyl 4-methylbenzenesulfonate, 4-Methylbenzenesulfonic acid phenyl ester, (Tosyloxy)benzene, Phenyl tosylate

Phenyl p-toluenesulfonate (CAS 640-60-8) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C13H12O3S and a molecular weight of 248.29800 g/mol. Key properties include a melting point of 94-98ºC, a boiling point of 385.8ºC at 760 mmHg, a density of 1.245g/cm3 and a flash point of 187.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 640-60-8
Jingsj CID: J-6657-9
Molecular Formula: C₁₃H₁₂O₃S
Molecular Weight: 248.29800 g/mol
Category: Solvents
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	94-98ºC
Boiling Point	385.8ºC at 760 mmHg
Density	1.245g/cm3
Flash Point	187.1ºC
Exact Mass	248.05100
PSA	51.75000
LogP	3.84350
Appearance	Crystalline Powder \| White to beige
Refractive Index	1.583

Customs & Trade Information

HS Code	2906299090
Summary	2906299090 other aromatic alcohols。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Phenyl p-toluenesulfonate?

The CAS number of Phenyl p-toluenesulfonate is 640-60-8.

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

Phenyl p-toluenesulfonate has molecular formula C13H12O3S and molecular weight 248.29800 g/mol.

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

For Phenyl p-toluenesulfonate, Upstream Products: p-Toluenesulfonyl chloride, Phenol, Phenoxytrimethylsilane; Downstream Products: 1-Phenylpyrrolidine, 1-Phenylpiperidine, N-(4-Methoxybenzyl)aniline.

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. "Phenyl p-toluenesulfonate (CAS 640-60-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6657-9 (accessed 2026-11-09).

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