Demephion-S
二硫代田乐磷
Also known as: O,O-dimethyl S-(2-methylthioethyl) phosphorothioate, O,O-dimethyl S-[2-(methylthio)ethyl] phosphorothioate, dimethyl S-2-methylthioethyl phosphorothioate, Methyl demeton methyl, Phosphorothioic acid, O,O-dimethyl S-(2-methylthio)ethyl ester, Thiophosphoric acid O,O-dimethyl S-(2-methylthioethyl) ester, Caswell No. 369A, Cebetox, Cymetox, Isonitox, Isotinox, Demephion-S [ISO:BSI]
Demephion-S (CAS 2587-90-8) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H13O3PS2 and a molecular weight of 216.25900 g/mol. It is also known as O,O-dimethyl S-(2-methylthioethyl) phosphorothioate, O,O-dimethyl S-[2-(methylthio)ethyl] phosphorothioate and dimethyl S-2-methylthioethyl phosphorothioate. Key properties include a boiling point of 270.3ºC at 760mmHg, a density of 1.229g/cm3 and a flash point of 117.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2587-90-8
- Jingsj CID
- J-1503278-6
- Molecular Formula
- C5H13O3PS2
- Chinese Name
- 二硫代田乐磷
- Molecular Weight
- 216.25900 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 270.3ºC at 760mmHg |
|---|---|
| Density | 1.229g/cm3 |
| Flash Point | 117.3ºC |
Frequently Asked Questions
What is the CAS number of Demephion-S?
The CAS number of Demephion-S is 2587-90-8.
What are the molecular formula and molecular weight of Demephion-S?
Demephion-S has molecular formula C5H13O3PS2 and molecular weight 216.25900 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Demephion-S (CAS 2587-90-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1503278-6 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.