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Dimethoate

Also known as: 1OPS&O1&S1VM1, 2-dimethoxyphosphinothioylthio-N-methylacetamide, Aadimethoal, BI 58, CHAMP, CYGON, Dithiophosphate de S-[2-(méthylamino)-2-oxoéthyle] et de O,O-diméthyle, EINECS 200-480-3, FIP, L 395, Lurgo, MFCD00053676, O,O-Dimethyl S-((methylcarbamoyl)methyl)phosphorodithioate, O,O-Dimethyl S-(N-Methylcarbamoylmethyl) Phosphorodithioate, O,O-Dimethyl S-(N-methylcarbamoylmethyl) dithiophosphate, O,O-Dimethyl S-(N-methylcarbamylmethyl) thiothionophosphate, O,O-Dimethyl S-[2-(methylamino)-2-oxoethyl] phosphorodithioate, O,O-Dimethyl S-methylcarbomoylmethyl phosphorodithioate, O,O-Dimethyl methylcarbamoylmethyl phosphorodithioate, O,O-Dimethyl phosphorodithioate S-ester with 2-mercapto-N-methylacetamide (8CI)

Dimethoate (CAS 60-51-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H12NO3PS2 and a molecular weight of 229.257 g/mol. Key properties include a melting point of 52-52.5°C, a boiling point of 310.3±52.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 141.4±30.7 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H312 — Harmful in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
60-51-5
Jingsj CID
J-29599-8
Molecular Formula
C5H12NO3PS2
Molecular Weight
229.257 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point52-52.5°C
Boiling Point310.3±52.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point141.4±30.7 °C
Exact Mass228.999619
PSA114.76000
LogP1.32
Vapor Pressure0.0±1.5 mmHg at 25°C
Refractive Index1.548
Additional PropertySlightly soluble. 2.5 g/100 mL

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin

Activity & Biological Data

Additional Information[1]. CASIDA JE, et al. Toxic hazard from formulating the insecticide dimethoate in methyl 'Cellosolve'. Nature. 1961;189:507-508.

Customs & Trade Information

HS Code2930909063
Summary2930909063 o,o-dimethyl s-(2-(methylamino)-2-oxoethyl) 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:30.0%

Frequently Asked Questions

What is the CAS number of Dimethoate?

The CAS number of Dimethoate is 60-51-5.

What are the molecular formula and molecular weight of Dimethoate?

Dimethoate has molecular formula C5H12NO3PS2 and molecular weight 229.257 g/mol.

Is Dimethoate hazardous?

Dimethoate has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin.

What are the upstream and downstream products of Dimethoate?

For Dimethoate, Upstream Products: 2-Chloro-N-methylacetamide, 2-Bromo-N-methylacetamide, Methyl [(dimethoxyphosphinothioyl)thio]acetate; Downstream Products: O,O-Dimethyl hydrogen phosphorothioate, N-Methyl-2-sulfanylacetamide, 1,2,3,4,6,7,8,9-Octachlorodibenzo-p-dioxin.

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

Last updated:

How to cite: Jingsj. "Dimethoate (CAS 60-51-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29599-8 (accessed 2026-11-09).

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