2,5-Dimethylbenzenesulfonic acid dihydrate
2,5-二甲基苯磺酸二水合物
Also known as: 1,4-Dimethylbenzene-2-sulfonic acid dihydrate, p-Xylene-2-sulfonic acid dihydrate, 2,5-Dimethylbenzene-1-sulfonic acid dihydrate, Benzenesulfonic acid, 2,5-dimethyl-, dihydrate
2,5-Dimethylbenzenesulfonic acid dihydrate (CAS 66905-17-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H14O5S and a molecular weight of 222.25900 g/mol. It is also known as 1,4-Dimethylbenzene-2-sulfonic acid dihydrate, p-Xylene-2-sulfonic acid dihydrate and 2,5-Dimethylbenzene-1-sulfonic acid dihydrate. Key properties include a melting point of 82-86ºC, a boiling point of 531.5ºC at 760mmHg and a flash point of 275.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 66905-17-7
- Jingsj CID
- J-909177-3
- Molecular Formula
- C8H14O5S
- Chinese Name
- 2,5-二甲基苯磺酸二水合物
- Molecular Weight
- 222.25900 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 82-86ºC |
|---|---|
| Boiling Point | 531.5ºC at 760mmHg |
| Flash Point | 275.2ºC |
Frequently Asked Questions
What is the CAS number of 2,5-Dimethylbenzenesulfonic acid dihydrate?
The CAS number of 2,5-Dimethylbenzenesulfonic acid dihydrate is 66905-17-7.
What are the molecular formula and molecular weight of 2,5-Dimethylbenzenesulfonic acid dihydrate?
2,5-Dimethylbenzenesulfonic acid dihydrate has molecular formula C8H14O5S and molecular weight 222.25900 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,5-Dimethylbenzenesulfonic acid dihydrate (CAS 66905-17-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-909177-3 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.