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Insecticides and acaricides

Crotoxyphos

Also known as Crotoxyfos, Ciodrin, Trans-crotoxyphos

CAS 7700-17-6Formula C14H19O6PMolar mass 314.27 g/molEC 231-720-5
GHS signal word: Danger. Pictograms: Acute toxicity (severe), Hazardous to the environment
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Crotoxyphos chemical structure, C14H19O6P, CAS 7700-17-6
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Light straw-colored liq
Boiling point
135 °C
Density
1.19 @ 25 °C
Solubility
0.1% in water at room temperature
HS code
291990
Category
Insecticides and acaricides
Illustrative photo, closed blue steel drums of liquid in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Crotoxyphos?

Plain description, key identifiers and synonyms

Crotoxyphos is a carboxylic ester. It is functionally related to a benzyl alcohol.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-phenylethyl (E)-3-dimethoxyphosphoryloxybut-2-enoate
CAS number
7700-17-6 CAS number cross-checkedOther or deprecated CAS: 326-12-5
EC number
231-720-5
Molecular formula
C14H19O6P
UNII
B05A48683J
InChIKey
XXXSILNSXNPGKG-ZHACJKMWSA-N
InChI
InChI=1S/C14H19O6P/c1-11(20-21(16,17-3)18-4)10-14(15)19-12(2)13-8-6-5-7-9-13/h5-10,12H,1-4H3/b11-10+
Canonical SMILES
COP(=O)(OC)OC(C)=CC(=O)OC(C)c1ccccc1
Isomeric SMILES
CC(C1=CC=CC=C1)OC(=O)/C=C(\C)/OP(=O)(OC)OC

Synonyms

  • Crotoxyfos
  • Ciodrin
  • Trans-crotoxyphos
  • Volfazol
  • Cyodrin
  • Pantozol 1
  • Decrotox
  • Duo-Kill
  • Kemdrin
  • Simax
  • Shell SD 4294
  • OMS 239
  • 1-phenylethyl (E)-3-dimethoxyphosphoryloxybut-2-enoate
  • ENT 24,717
  • SD 4294
  • 1-Methylbenzyl-3-(dimethoxyphosphinyloxo)isocrotonate
  • 2-Butenoic acid, 3-((dimethoxyphosphinyl)oxy)-, 1-phenylethyl ester, (2E)-
  • alpha-Methylbenzyl 3-hydroxycrotonate dimethyl phosphate
  • A-Methyl benzyl-3-hydroxy cis crotonate dimethyl phosphate
  • alpha-Methyl benzyl-3-(dimethoxy-phosphinyloxy)-cis-crotonate
  • cis-2-(1-Phenylethoxy)carbonyl-1-methylvinyl dimethylphosphate
  • 3-Hydroxycrotonic acid alpha-methylbenzyl ester dimethyl phosphate
  • Dimethyl 2-(alpha-methylbenzyloxycarbonyl)-1-methylvinyl phosphate
  • Dimethyl phosphate of alpha-methylbenzyl 3-hydroxy-cis-crotonate
  • Dimethyl-cis-1-methyl-2-(1-phenylethoxycarbonyl)vinyl phosphate
Show all 36 synonyms
  • 2-Butenoic acid, 3-((dimethoxyphosphinyl)oxy)-, 1-phenylethyl ester, (E)-
  • Crotonic acid, 3-hydroxy-, alpha-methylbenzyl ester, dimethyl phosphate, (E)-
  • 2-Butenoic acid, 3-[(dimethoxyphosphinyl)oxy]-, 1-phenylethyl ester, (E)-
  • alpha-methylbenzyl 3-(dimethoxyphosphinyloxy)-cis-crotonate
  • cis-Crotoxyphos
  • 1-Phenylethyl 3-(dimethoxyphosphinoyloxy)isocrotonate
  • 1-Phenylethyl 3-(dimethoxyphosphinyloxy)isocrotonate
  • ENT 24717
  • alpha-Methylbenzyl 3-hydroxycrotonate dimethylphosphate
  • Crotoxyphos-cis
  • 1-Phenylethyl (E)-3-((dimethoxyphosphinyl)oxy)-2-butenoate

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
Light straw-colored liqexp.
Odour
Mild esterexp.
Boiling point
135 °Cexp.
Density
1.19 @ 25 °Cexp.
Solubility
0.1% in water at room temperatureexp.
Vapour pressure
1.4 × 10⁻⁵ mm Hg @ 20 °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
314.27 g/molcalc.
Exact mass
314.0919 Dacalc.
LogP (octanol/water)
3.61calc.
Topological polar surface area
71.06 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
6calc.
Rotatable bonds
7calc.
Heavy atoms
21calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.36calc.
Formal charge
0calc.
Stereocentres
1calc.
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)
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H301Toxic if swallowed.
  • H311Toxic in contact with skin.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (14)
  • 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.
  • P273Avoid release to the environment.
  • 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.
  • P391Collect spillage.
  • 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

Crotoxyphos suppliers

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Crotoxyphos 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 for external use on livestock.

Recommended for the control of flies, mites and ticks on cattle and pigs.

Insecticide with rapid action & moderately persistent residual effect on wide range of external insect pests of livestock & is recommended for control of flies, mites & ticks on cattle & pigs.

Use classes: Insecticides.

Pharmacology

Crotoxyfos is a synthetic carboxylic ester compound and organophosphate acetylcholinesterase inhibitor that is used as a pesticide. It is characterized as a clear or light straw-colored liquid with a mild ester odor, and exposure occurs by inhalation, ingestion, or contact.

How it is made

Produced by reaction of trimethyl phosphite with 1-phenylethyl 2-chloro-3-oxobutyrate...

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 015-109-00-9

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2919.90Indicative HS code

Phosphoric, and their salts, including lactophosphates, their halogenated, sulphonated, nitrated…

World exports in 2024
$940M
−0.7% vs 2023, imports $863M
2019 to 2024
Top exporters
  1. China55.6%
  2. Germany10.6%
  3. Italy6.2%
Top importers
  1. United States15.8%
  2. South Korea10.1%
  3. Germany6.4%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Crotoxyphos?

Crotoxyphos is a carboxylic ester. It is functionally related to a benzyl alcohol.

What is the CAS number of Crotoxyphos?

The CAS registry number of Crotoxyphos is 7700-17-6. Other or deprecated CAS numbers: 326-12-5.

What is the molecular formula and weight of Crotoxyphos?

The molecular formula of Crotoxyphos is C14H19O6P and its molar mass is 314.27 g/mol.

What is Crotoxyphos used for?

The active ingredient is no longer contained in any registered pesticide products ... "cancelled.". Insecticide for external use on livestock. Recommended for the control of flies, mites and ticks on cattle and pigs.

Is Crotoxyphos hazardous?

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

What is the HS code of Crotoxyphos?

Crotoxyphos is usually classified under HS code 291990 (Phosphoric esters and their salts, including lactophosphates, their halogenated…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Crotoxyphos?

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What is the price of Crotoxyphos?

Suppliers quote Crotoxyphos 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 Crotoxyphos

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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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