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Insecticides and acaricides

Dimethoate

Also known as Phosphamide, Rogor, Perfekthion

CAS 60-51-5Formula C5H12NO3PS2Molar mass 229.26 g/molEC 200-480-3
GHS signal word: Warning. Pictograms: Harmful or irritant 89 suppliers listed
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Dimethoate chemical structure, C5H12NO3PS2, CAS 60-51-5
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
White crystalline solid
Melting point
52 to 52.5
Boiling point
107 °C
Density
1.3 g/cm³
Flash point
107 °C
HS code
293090
Category
Insecticides and acaricides
UN number
UN 2783
Illustrative photo, colourless crystals in an open fibre drum in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Dimethoate?

Plain description, key identifiers and synonyms

Dimethoate is a monocarboxylic acid amide that is N-methylacetamide in which one of the hydrogens of the methyl group attached to the carbonyl moiety is replaced by a (dimethoxyphosphorothioyl)sulfanediyl group. It has a role as an acaricide, an insecticide, an agrochemical, a xenobiotic, an EC 3.1.1.8 (cholinesterase) inhibitor, an EC 3.1.1.7 (acetylcholinesterase) inhibitor and an environmental contaminant. It is a monocarboxylic acid amide and an organic thiophosphate. It is functionally related to a N-methyl-2-sulfanylacetamide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-dimethoxyphosphinothioylsulfanyl-N-methylacetamide
CAS number
60-51-5 CAS number cross-checked
EC number
200-480-3
Molecular formula
C5H12NO3PS2
UNII
W6U08B045O
MDL number
MFCD00053676
InChIKey
MCWXGJITAZMZEV-UHFFFAOYSA-N
InChI
InChI=1S/C5H12NO3PS2/c1-6-5(7)4-12-10(11,8-2)9-3/h4H2,1-3H3,(H,6,7)
SMILES (canonical and isomeric)
CNC(=O)CSP(=S)(OC)OC

Synonyms

  • Phosphamide
  • Rogor
  • Perfekthion
  • Roxion
  • Cygon
  • De-fend
  • Fostion MM
  • Aadimethoal
  • Ferkethion
  • Perfecthion
  • Phosphamid
  • Daphene
  • Dimeton
  • Dimevur
  • Fosfamid
  • Fosfotox
  • Racusan
  • Rebelate
  • Sinoratox
  • Sistemin
  • Systoate
  • Lurgo
  • Tara
  • Fosfatox R
  • Fosfotox R
Show all 39 synonyms
  • Cygon insecticide
  • Rogor L
  • Rogor P
  • Cekuthoate
  • Cygon 4E
  • Dimetate
  • Dimethogen
  • Trimetion
  • Devigon
  • Rogodan
  • Sevigor
  • Fosfotox R 35
  • Salut
  • Solut

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
White crystalline solidexp.
Odour
CAMPHOR-LIKE ODORexp.
Melting point
52 to 52.5exp.
Boiling point
107 °Cexp.
Density
1.3 g/cm³exp.
Flash point
107 °Cexp.
Solubility
More than 5000 mg/L water at 20 plus or minus 1.5 °Cexp.
Vapour pressure
1.875 × 10⁻⁵ mm Hg at 25 °Cexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
229.26 g/molcalc.
Exact mass
228.9996 Dacalc.
LogP (octanol/water)
0.98calc.
Topological polar surface area
47.56 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
5calc.
Heavy atoms
12calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.8calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
  • H312Harmful in contact with skin.
Precautionary statements (10)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 2783
Transport hazard class
6.1
Packing group
III

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Dimethoate suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 89 suppliers
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Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

89 suppliers in 12 countries

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Dimethoate price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Dimethoate ... is an indirect-acting anticholinesterase.

Acaricide, insecticide.

Systemic and contact insecticide.

Use classes: Insecticides, Transformation products, Acaricides, Insecticides, Pesticides.

Pharmacological actions

  • Cholinesterase Inhibitors
  • Insecticides

Roles

  • acaricide
  • agrochemical
  • environmental contaminant
  • enzyme inhibitor
  • insecticide
  • pesticide
  • xenobiotic

Functional uses

  • Biocide

Pharmacology

Dimethoate is a synthetic organic thiophosphate compound and organophosphate acetylcholinesterase inhibitor that is used as a pesticide. It is characterized as a volatile white to gray crystalline solid that has a camphor-like odor, and exposure occurs by inhalation, ingestion, or contact.

How it is made

Reaction of sodium dimethylphosphorodithioate with phenyl chloroacetate followed by reaction with methylamine, reaction of methyl ester of o,o-dimethyl dithiophosphorylacetate with methylamine

O,O-Dimethyl dithiophosphoric acid ... (was) added ... to ... anhydrous sodium carbonate suspended in ... methyl isobutyl ketone. The mixture was then heated to about 65 °C & ... N-methyl chloroacetamide ... added. The resulting mixture was held at 80 °C for 1 hr with continued stirring, then cooled to room temp & filtered.

Read more

The filtrate was washed twice with water, dried over anhydrous sodium sulfate, & filtered. The filtrate was heated under vacuum to remove the methyl isobutyl ketone. The residual product (is) S-carbamoylmethyl O,O-dimethyl dithiophosphate ...

Dimethoate is produced by reaction of the sodium salt of O,O-dimethyldithiophosphoric acid with N-methylchloroacetamide.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 015-051-00-4

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Dimethoate is traded under.

HS 2930.90Indicative HS code

Organo-sulphur compounds, other

World exports in 2024
$5.83B
+0.1% vs 2023, imports $5.93B
2019 to 2024
Top exporters
  1. China40.7%
  2. United States10.9%
  3. Japan9.3%
Top importers
  1. United States13.3%
  2. Brazil12.6%
  3. China6.6%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Dimethoate is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Dimethoate, based on the data on this page

What is Dimethoate?

Dimethoate is a monocarboxylic acid amide that is N-methylacetamide in which one of the hydrogens of the methyl group attached to the carbonyl moiety is replaced by a (dimethoxyphosphorothioyl)sulfanediyl group.

What is the CAS number of Dimethoate?

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

What is the molecular formula and weight of Dimethoate?

The molecular formula of Dimethoate is C5H12NO3PS2 and its molar mass is 229.26 g/mol.

What is Dimethoate used for?

Dimethoate ... is an indirect-acting anticholinesterase. Acaricide, insecticide. Systemic and contact insecticide. Use classes: Insecticides, Transformation products, Acaricides, Insecticides, Pesticides.

Is Dimethoate hazardous?

Dimethoate carries the GHS signal word "Warning". Main hazards: harmful if swallowed, harmful in contact with skin. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Dimethoate?

Dimethoate is usually classified under HS code 293090 (Organo-sulphur compounds, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Dimethoate?

CompoundList lists 89 suppliers of Dimethoate in China, United States, India, Brazil and 8 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Dimethoate in India?

14 suppliers in India list Dimethoate on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Dimethoate?

Suppliers quote Dimethoate on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Dimethoate

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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