ethion
Also known as: O,O,O',O'-tetraethyl S,S'-methylene bis(dithiophosphate), S,S'-methylene bis(O,O-diethyl phosphorodithioate), O,O,O',O'-tetraethyl S,S'-methanediyl bis(phosphorodithioate), bis-diethoxythiophosphorylsulfanyl-methane, Bis(dithiophosphate) de O,O,O',O'-tétraéthyle et de S,S'-méthylène, ETHIOL, Ethanox, Ethodan, Ethopaz, Etilon, Itopaz, Kwit, rp8167
ethion (CAS 563-12-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C9H22O4P2S4 and a molecular weight of 384.476 g/mol. Key properties include a melting point of 3ºC, a boiling point of 401.2±55.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 196.5±31.5 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H312 — Harmful in contact with skin and H410 — Very toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 563-12-2
- Jingsj CID
- J-1325002-7
- Molecular Formula
- C9H22O4P2S4
- Molecular Weight
- 384.476 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 3ºC |
|---|---|
| Boiling Point | 401.2±55.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 196.5±31.5 °C |
| Exact Mass | 383.987610 |
| PSA | 171.32000 |
| LogP | 5.07 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.558 |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H312 — Harmful in contact with skin
- H410 — Very toxic to aquatic life with long lasting effects
Frequently Asked Questions
What is the CAS number of ethion?
The CAS number of ethion is 563-12-2.
What are the molecular formula and molecular weight of ethion?
ethion has molecular formula C9H22O4P2S4 and molecular weight 384.476 g/mol.
Is ethion hazardous?
ethion has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H312 — Harmful in contact with skin; H410 — Very toxic to aquatic life with long lasting effects.
What are the upstream and downstream products of ethion?
For ethion, Upstream Products: Diazomethane, Dichloromethane, Ammonium O,O-diethyldithiophosphate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "ethion (CAS 563-12-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1325002-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.