Azinphos-ethyl
Also known as: Azinphos ethyl, Azinos, Bionex, Crysthion, Gusathion, Gusathion H & K, Gutex, O,O-Diethyl S-[(4-oxo-1,2,3-benzotriazin-3(4H)-yl)methyl] phosphorodithioate, triazothion, 3-(diethoxyphosphinothioylsulfanylmethyl)-1,2,3-benzotriazin-4-one
Azinphos-ethyl (CAS 2642-71-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C12H16N3O3PS2 and a molecular weight of 345.378 g/mol. Key properties include a melting point of 53ºC, a boiling point of 444.7±55.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 222.7±31.5 °C. It is classified under GHS with signal word Danger and hazard statements H300, H311 — Toxic 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.
- 2642-71-9
- Jingsj CID
- J-1331285-1
- Molecular Formula
- C12H16N3O3PS2
- Molecular Weight
- 345.378 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 53ºC |
|---|---|
| Boiling Point | 444.7±55.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 222.7±31.5 °C |
| Exact Mass | 345.037079 |
| PSA | 133.44000 |
| LogP | 3.61 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.651 |
GHS Safety & Compliance
- H300
- H311 — Toxic in contact with skin
- H410 — Very toxic to aquatic life with long lasting effects
Frequently Asked Questions
What is the CAS number of Azinphos-ethyl?
The CAS number of Azinphos-ethyl is 2642-71-9.
What are the molecular formula and molecular weight of Azinphos-ethyl?
Azinphos-ethyl has molecular formula C12H16N3O3PS2 and molecular weight 345.378 g/mol.
Is Azinphos-ethyl hazardous?
Azinphos-ethyl has GHS signal word Danger and hazard statements H300; H311 — Toxic in contact with skin; H410 — Very toxic to aquatic life with long lasting effects.
What are the upstream and downstream products of Azinphos-ethyl?
For Azinphos-ethyl, Upstream Products: 3-(hydroxymethyl)-1,2,3-benzotriazin-4(3H)-one, 1,2,3-Benzotriazin-4(3H)-one, 3-(Chloromethyl)-1,2,3-benzotriazin-4(3H)-one.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Azinphos-ethyl (CAS 2642-71-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1331285-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.