p-Toluenesulfonic anhydride
Also known as: 4-Methylbenzenesulfonic anhydride, Tosic anhydride, 4-Toluenesulfonic anhydride, p-Toluenesulphonic anhydride, Toluene-4-sulfonic anhydride, 4-Methylbenzenesulfonic acid anhydride, (4-methylphenyl)sulfonyl 4-methylbenzenesulfonate, 1,3-bis(4-methylphenyl)-1,1,3,3-tetraoxo-1λ6,3λ6-dithioxane
p-Toluenesulfonic anhydride (CAS 4124-41-8) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C14H14O5S2 and a molecular weight of 326.388 g/mol. Key properties include a melting point of 121-127 °C(lit.), a boiling point of 478.0±48.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 242.9±29.6 °C. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4124-41-8
- Jingsj CID
- J-12706-0
- Molecular Formula
- C14H14O5S2
- Molecular Weight
- 326.388 g/mol
- Category
- Solvents
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 121-127 °C(lit.) |
|---|---|
| Boiling Point | 478.0±48.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 242.9±29.6 °C |
| Exact Mass | 326.028259 |
| PSA | 94.27000 |
| LogP | 3.50 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.583 |
GHS Safety & Compliance
- H314 — Causes severe skin burns and eye damage
Customs & Trade Information
| HS Code | 2916399090 |
|---|---|
| Summary | 2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of p-Toluenesulfonic anhydride?
The CAS number of p-Toluenesulfonic anhydride is 4124-41-8.
What are the molecular formula and molecular weight of p-Toluenesulfonic anhydride?
p-Toluenesulfonic anhydride has molecular formula C14H14O5S2 and molecular weight 326.388 g/mol.
Is p-Toluenesulfonic anhydride hazardous?
p-Toluenesulfonic anhydride has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of p-Toluenesulfonic anhydride?
For p-Toluenesulfonic anhydride, Upstream Products: p-Toluenesulfonic acid, Silver p-toluenesulfonate, p-Toluenesulfonyl chloride; Downstream Products: 2-Fluoroethyl 4-methylbenzenesulfonate, tert-butyl (3R)-3-({[(4-methylphenyl)sulfonyl]oxy}methyl)piperidine-1-carboxylate, Phenyl p-tolyl sulfone.
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-Toluenesulfonic anhydride (CAS 4124-41-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12706-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.