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Insecticides and acaricides

Dicapthon

Also known as Isochlorthion, Dicapthion, Dicaptan

CAS 2463-84-5Formula C8H9ClNO5PSMolar mass 297.66 g/molEC 623-752-7
GHS signal word: Danger. Pictograms: Acute toxicity (severe)
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Dicapthon chemical structure, C8H9ClNO5PS, CAS 2463-84-5
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Crystals from methanol
Melting point
53 °C
Solubility
SOL IN ACETONE, CYCLOHEXANONE, ETHYL ACETATE, TOLUENE, XYLENE, ETHYLENE GLYCOL, PROPYLEN…
HS code
292019
Category
Insecticides and acaricides
Illustrative photo, closed blue fibre drums on a pallet in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Dicapthon?

Plain description, key identifiers and synonyms

Dicapthon is a chemical substance with the molecular formula C8H9ClNO5PS and a molar mass of 297.66 g/mol. Its CAS registry number is 2463-84-5. The IUPAC name is (2-chloro-4-nitrophenoxy)-dimethoxy-sulfanylidene-λ5-phosphane.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2-chloro-4-nitrophenoxy)-dimethoxy-sulfanylidene-λ5-phosphane
CAS number
2463-84-5 CAS number cross-checked
EC number
623-752-7
Molecular formula
C8H9ClNO5PS
UNII
6RQZ0Q90M7
MDL number
MFCD00128035
InChIKey
OTKXWJHPGBRXCR-UHFFFAOYSA-N
InChI
InChI=1S/C8H9ClNO5PS/c1-13-16(17,14-2)15-8-4-3-6(10(11)12)5-7(8)9/h3-5H,1-2H3
SMILES (canonical and isomeric)
COP(=S)(OC)OC1=C(C=C(C=C1)[N+](=O)[O-])Cl

Synonyms

  • Isochlorthion
  • Dicapthion
  • Dicaptan
  • Captec
  • Isomeric chlorthion
  • Isochlorothion
  • Dicapton
  • Phosphorothioic acid, O-(2-chloro-4-nitrophenyl) O,O-dimethyl ester
  • Isochloorthion
  • Insecticide ACC 4124
  • American cyanamid 4,124
  • Experimental insecticide 4124
  • ENT 17,035
  • American Cyanamid 4124
  • BAY 14981
  • AC 4124
  • Dimethyl 2-chloronitrophenyl thiophosphate
  • O-(2-Chloro-4-nitrophenyl) O,O-dimethyl phosphorothioate
  • p-Nitro-o-chlorophenyl dimethyl thionophosphate
  • 2-Chloro-4-nitrophenyl dimethyl phosphorothioate
  • O,O-Dimethyl O-(2-chloro-4-nitrophenyl)phosphorothioate
  • O,O-Dimethyl O-2-chloro-4-nitrophenyl phosphorothioate
  • O,O-Dimethyl-O-(2-chloro-4-nitrophenyl)thionophosphate
  • Phenol, 2-chloro-4-nitro-, O-ester with O,O-dimethyl phosphorothioate
  • O-(4-Cloro-3-nitro-fenil)-O,O-dimetil-monotiofosfato
Show all 34 synonyms
  • O-(4-Chloor-3-nitro-fenyl)-O,O-dimethylmonothiofosfaat
  • O-(4-Chlor-3-nitro-phenyl)-O,O-dimethyl-monothiophosphat
  • Thiophosphate de O,O-dimethyle et de O-4-chloro-3-nitrophenyle
  • Isomeric clorthio
  • OMS 214, Dicapthon, ENT 17,035, ENT 17035, Experimental Insecticide 4124, Insecticide ACC 4124
  • ACC 4124
  • OMS 214
  • ENT 17035
  • O-(2-Chloro-4-nitrophenyl) O,O-dimethylphosphorothioate

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
Crystals from methanolexp.
Melting point
53 °Cexp.
Solubility
SOL IN ACETONE, CYCLOHEXANONE, ETHYL ACETATE, TOLUENE, XYLENE, ETHYLENE GLYCOL, PROPYLENE GLYCOL, SOME OILS, PRACTICALLY INSOL IN WATERexp.
Vapour pressure
3.6 × 10⁻⁶ mm Hgexp.

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
297.66 g/molcalc.
Exact mass
296.9628 Dacalc.
LogP (octanol/water)
3.14calc.
Topological polar surface area
70.83 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
6calc.
Rotatable bonds
5calc.
Heavy atoms
17calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.25calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS06: Acute toxicity (severe)
Acute toxicity (severe)

Hazard statements

  • H301Toxic if swallowed.
  • H311Toxic in contact with skin.
Precautionary statements (12)
  • P262Do not get in eyes, on skin, or on clothing.
  • 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 + P316If swallowed: Get emergency medical help immediately.
  • P302 + P352If on skin: Wash with plenty of water.
  • P316Get emergency medical help immediately.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P361 + P364Take off immediately all contaminated clothing. And wash it before reuse.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

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

Dicapthon suppliers

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Dicapthon 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

The active ingredient is no longer contained in any registered pesticide products ... "cancelled.".

Insecticide.

Aphicide.

Acaracide.

How it is made

By reaction of dimethyl phosphorochloridothionate with alkali metal 2-chloro-4-nitrophenate or with 2-chloro-4-nitrophenol in presence of suitable base.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2920.19Indicative HS code

Thiophosphoric esters (phosphorothioates) and their salts, their halogenated…

World exports in 2024
$131M
+2.1% vs 2023, imports $115M
2019 to 2024
Top exporters
  1. China59.7%
  2. Japan17.6%
  3. Germany9.1%
Top importers
  1. Brazil16.0%
  2. United States13.3%
  3. India * partner reported8.9%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Dicapthon?

Dicapthon is a chemical substance with the molecular formula C8H9ClNO5PS and a molar mass of 297.66 g/mol. Its CAS registry number is 2463-84-5. The IUPAC name is (2-chloro-4-nitrophenoxy)-dimethoxy-sulfanylidene-λ5-phosphane.

What is the CAS number of Dicapthon?

The CAS registry number of Dicapthon is 2463-84-5.

What is the molecular formula and weight of Dicapthon?

The molecular formula of Dicapthon is C8H9ClNO5PS and its molar mass is 297.66 g/mol.

What is Dicapthon used for?

The active ingredient is no longer contained in any registered pesticide products ... "cancelled.". Insecticide. Aphicide. Acaracide.

Is Dicapthon hazardous?

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

What is the HS code of Dicapthon?

Dicapthon is usually classified under HS code 292019 (Thiophosphoric esters (phosphorothioates) and their salts, their halogenated…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Dicapthon?

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What is the price of Dicapthon?

Suppliers quote Dicapthon 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 Dicapthon

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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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