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Pirimiphos-methyl

Also known as: Actellic, Actellifog, Blex, O-(2-Diethylamino-6-methyl-4-pyrimidinyl)-O,O-dimethyl phosphorothioate, O,O-Dimethyl-O-[2-(diethylamino)-6-methyl-4-pyrimidinyl]phosphorothioate, PP511, Silosan, Tomahawk, Methylpirimiphos, Methylpyrimiphos, OMS 1424, Pirimifos-methyl, Sybol, aktelik, fosforanpirimidyny, Thiophosphate de O-[2-(diéthylamino)-6-méthyl-4-pyrimidinyle] et de O,O-diméthyle, Phosphorothioic acid, O-[2-(diethylamino)-6-methyl-4-pyrimidinyl] O,O-dimethyl ester, O-[2-(Diethylamino)-6-methyl-4-pyrimidinyl] O,O-dimethyl phosphorothioate, O-2-diethylamino-6-methylpyrimidin-4-yl O,O-dimethyl phosphorothioate

Pirimiphos-methyl (CAS 29232-93-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H20N3O3PS and a molecular weight of 305.334 g/mol. Key properties include a melting point of 15°C, a boiling point of 386.5±52.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 187.6±30.7 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed 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.
29232-93-7
Jingsj CID
J-29841-4
Molecular Formula
C11H20N3O3PS
Molecular Weight
305.334 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point15°C
Boiling Point386.5±52.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point187.6±30.7 °C
Exact Mass305.096283
PSA98.61000
LogP4.00
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.555

GHS Safety & Compliance

Irritant / Environmental HazardSignal word: Warning
  • H302 — Harmful if swallowed
  • H410 — Very toxic to aquatic life with long lasting effects

Activity & Biological Data

Additional Information[1]. Shizhuang Weng, et al. Detection of Pirimiphos-Methyl in Wheat Using Surface-Enhanced Raman Spectroscopy and Chemometric Methods. Molecules. 2019 Apr 30;24(9):1691. [2]. Pål A Olsvik, et al. In Vitro Toxicity of Pirimiphos-Methyl in Atlantic Salmon Hepatocytes. Toxicol In Vitro. 2017 Mar;39:1-14. [3]. Esther Borrás, et al. Atmospheric Degradation of the Organothiophosphate Insecticide - Pirimiphos-methyl. Sci Total Environ. 2017 Feb 1;579:1-9.

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 Pirimiphos-methyl?

The CAS number of Pirimiphos-methyl is 29232-93-7.

What are the molecular formula and molecular weight of Pirimiphos-methyl?

Pirimiphos-methyl has molecular formula C11H20N3O3PS and molecular weight 305.334 g/mol.

Is Pirimiphos-methyl hazardous?

Pirimiphos-methyl has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H410 — Very toxic to aquatic life with long lasting effects.

What are the upstream and downstream products of Pirimiphos-methyl?

For Pirimiphos-methyl, Upstream Products: 2-(Diethylamino)-6-methylpyrimidin-4-ol.

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

Last updated:

How to cite: Jingsj. "Pirimiphos-methyl (CAS 29232-93-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29841-4 (accessed 2026-11-07).

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