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Diazinon

Also known as: O,O-Diethyl O-(2-isopropyl-4-methyl-6-pyrimidinyl) phosphorothioate, Dimpylate, O,O-Diethyl O-(2-isopropyl-6-methyl-4-pyrimidinyl) thiophosphate, Basudin, Bazudin, Dazzel, G 301, AG-500, Dicid, Exodin, Antlak, Antigal (VAN), Phosphorothioic acid, O,O-diethyl O-[6-methyl-2-(1-methylethyl)-4-pyrimidinyl] ester, Thiophosphate de O,O-diéthyle et de O-(2-isopropyl-6-méthyl-4-pyrimidinyle), o,o-dietil-o-(2-isopropil-4-metil-pirimidin-6-il)-monotiofosfato

Diazinon (CAS 333-41-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C12H21N2O3PS and a molecular weight of 304.345 g/mol. Key properties include a melting point of >120°C (dec.), a boiling point of 353.9±44.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 167.9±28.4 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H350 — May cause cancer and H410 — Very toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
333-41-5
Jingsj CID
J-29570-5
Molecular Formula
C12H21N2O3PS
Molecular Weight
304.345 g/mol
Category
Organic Compounds
Last updated
11/3/2026

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Physicochemical Properties

Melting Point>120°C (dec.)
Boiling Point353.9±44.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point167.9±28.4 °C
Exact Mass304.101044
PSA95.37000
LogP3.81
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.524
Additional PropertySlightly soluble. 0.004 g/100 mL

GHS Safety & Compliance

Irritant / Health Hazard / Environmental HazardSignal word: Danger
  • H302 — Harmful if swallowed
  • H350 — May cause cancer
  • H410 — Very toxic to aquatic life with long lasting effects

Customs & Trade Information

HS Code2933599011
Summary2933599011 o-(2-(diethylamino)-6-methylpyrimidin-4-yl) o,o-dimethyl phosphorothioate。supervision conditions:s(import or export registration certificate for pesticides)。VAT:17.0%。tax rebate rate:9.0%。MFN tarrif:6.5%。general tariff:20.0%

Frequently Asked Questions

What is the CAS number of Diazinon?

The CAS number of Diazinon is 333-41-5.

What are the molecular formula and molecular weight of Diazinon?

Diazinon has molecular formula C12H21N2O3PS and molecular weight 304.345 g/mol.

Is Diazinon hazardous?

Diazinon has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H350 — May cause cancer; H410 — Very toxic to aquatic life with long lasting effects.

What are the upstream and downstream products of Diazinon?

For Diazinon, Upstream Products: Diethyl chlorothiophosphate, 2-Isopropyl-6-methyl-4-pyrimidinol; Downstream Products: 1,8-Diamino-3,6-dioxaoctane, 2-Isopropyl-6-methyl-4-pyrimidinol, Diazinon-O-analog.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Diazinon (CAS 333-41-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29570-5 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.