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Insecticides and acaricides

Phenthoate

Also known as Fenthoate, Dimephenthioate, Dimephenthoate

CAS 2597-03-7Formula C12H17O4PS2Molar mass 320.37 g/molEC 219-997-0
GHS signal word: Warning. Pictograms: Harmful or irritant, Hazardous to the environment 11 suppliers listed
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Phenthoate chemical structure, C12H17O4PS2, CAS 2597-03-7
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless, crystalline solid
Melting point
17 to 18
Boiling point
70 to 80
Density
1.226 @ 20 °C/4 °C
Flash point
165 to 170
HS code
293090
Category
Insecticides and acaricides
Illustrative photo, colourless crystals beside a jumbo bulk bag in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Phenthoate?

Plain description, key identifiers and synonyms

Phenthoate is an organic thiophosphate that is ethyl mandelate in which the hydroxy group has been replaced by a (dimethoxyphosphorothioyl)sulfanediyl group. It has a role as an acaricide, an agrochemical and an EC 3.1.1.7 (acetylcholinesterase) inhibitor. It is an ethyl ester, an organothiophosphate insecticide and an organic thiophosphate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
ethyl 2-dimethoxyphosphinothioylsulfanyl-2-phenylacetate
CAS number
2597-03-7 CAS number cross-checkedOther or deprecated CAS: 61361-99-7, 61362-00-3, 61391-87-5
EC number
219-997-0
Molecular formula
C12H17O4PS2
UNII
J96Q7F091K
InChIKey
XAMUDJHXFNRLCY-UHFFFAOYSA-N
InChI
InChI=1S/C12H17O4PS2/c1-4-16-12(13)11(10-8-6-5-7-9-10)19-17(18,14-2)15-3/h5-9,11H,4H2,1-3H3
SMILES (canonical and isomeric)
CCOC(=O)C(C1=CC=CC=C1)SP(=S)(OC)OC

Synonyms

  • Fenthoate
  • Dimephenthioate
  • Dimephenthoate
  • Phendal
  • Papthion
  • Cidial
  • Tagson
  • Tsidial
  • Elsan
  • Cidemul
  • Dimefenthoat
  • Tanone
  • Bayer 18510
  • Cidial ULV
  • Elsan ULV
  • Phenthoate 50 EC
  • ENT 27386GC
  • OMS 1075
  • BAY 33051
  • ENT 27386
  • Bay 18510
  • Ethyl alpha-((dimethoxyphosphenothioyl)thio)benzeneacetate
  • O,O-Dimethyl S-alpha-Ethoxycarbonylbenzyl phosphorodithioate
  • ENT 23,438
  • O,O-Dimethyl S-(1-carboethoxybenzyl) dithiophosphate
Show all 38 synonyms
  • Acetic acid, mercaptophenyl-, ethyl ester, S-ester with O,O-dimethyl phosphorodithioate
  • (Dimethyl S-(phenylethoxycarbonylmethyl)phosphorothiolothionate)
  • O,O-Dimethyl S-(phenyl)(carboethoxy)methyl phosphorodithioate
  • BAYER-18,510
  • O,O-Dimethyl-S-(phenylacetic acid ethyl ester) phosphorodithioate
  • Benzeneacetic acid, alpha-((dimethoxyphosphinothioyl)thio)-, ethyl ester
  • Ethyl O,O-dimethylphosphorodithioyl phenyl acetate
  • Ethyl [(dimethoxyphosphorothioyl)sulfanyl](phenyl)acetate
  • Ethyl mercaptophenylacetate O,O-dimethyl phosphorodithioate
  • O,O-Dimethyl S-(alpha-ethoxycarbonylbenzyl) thiophosphate
  • Ethyl ester of O,O-dimethyldithiophosphoryl alpha-phenyl acetate
  • Cidiale
  • Ethyl ((dimethoxyphosphorothioyl)sulfanyl)(phenyl)acetate

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
Colorless, crystalline solidexp.
Odour
AROMATICexp.
Melting point
17 to 18exp.
Boiling point
70 to 80exp.
Density
1.226 @ 20 °C/4 °Cexp.
Flash point
165 to 170exp.
Solubility
REDDISH-YELLOW OIL, SOLUBILITY: IN WATER @ 20 °C= 200 MG/L (TECHNICAL GRADE), IN HEXANE @ 20 °C= 120 G/L, GREATER THAN 200 G/L IN 1,2-DIMETHOXYETHANE, 20 °C (PURE), IN PETROLEUM SPIRIT @ 20 °C= 100-170 G/L /TECHNICAL/exp.
Vapour pressure
2.6 × 10⁻⁶ 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
320.37 g/molcalc.
Exact mass
320.0306 Dacalc.
LogP (octanol/water)
3.54calc.
Topological polar surface area
44.76 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
6calc.
Rotatable bonds
7calc.
Heavy atoms
19calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.42calc.
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
Warning
GHS07: Harmful or irritant
Harmful or irritant
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H302Harmful if swallowed.
  • H312Harmful in contact with skin.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (12)
  • 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 + 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.
  • P391Collect spillage.
  • 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

Phenthoate suppliers

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

All 11 suppliers
11 of 11 offers

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

11 suppliers in 3 countries

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Phenthoate price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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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, acaricide.

Useful for protection of rice, vegetables, fruits, and tea against chewing and sucking insects.

Pharmacological actions

  • Insecticides

Roles

  • acaricide
  • agrochemical
  • enzyme inhibitor
  • pesticide

Functional uses

  • Biocide

Pharmacology

Phenthoate is a synthetic organic thiophosphate compound and organophosphate acetylcholinesterase inhibitor that is used as a pesticide. It is characterized as a colorless crystalline solid with an aromatic odor, and exposure occurs by inhalation, ingestion, or contact.

How it is made

/Manufactured/ by the interaction of ethyl-alpha-bromo, alpha-phenyl acetate with O,O-dimethyl phosphorodithiochloridate

Reaction of ethyl phenylacetate with O,O-dimethyl dithiophosphoric acid (alpha bromination/dehydrobromination)

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 015-097-00-5

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Phenthoate 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 Phenthoate is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Phenthoate?

Phenthoate is an organic thiophosphate that is ethyl mandelate in which the hydroxy group has been replaced by a (dimethoxyphosphorothioyl)sulfanediyl group. It has a role as an acaricide, an agrochemical and an EC 3.1.1.7 (acetylcholinesterase) inhibitor.

What is the CAS number of Phenthoate?

The CAS registry number of Phenthoate is 2597-03-7. Other or deprecated CAS numbers: 61361-99-7, 61362-00-3, 61391-87-5.

What is the molecular formula and weight of Phenthoate?

The molecular formula of Phenthoate is C12H17O4PS2 and its molar mass is 320.37 g/mol.

What is Phenthoate used for?

The active ingredient is no longer contained in any registered pesticide products ... "cancelled.". Insecticide, acaricide. Useful for protection of rice, vegetables, fruits, and tea against chewing and sucking insects.

Is Phenthoate hazardous?

Phenthoate carries the GHS signal word "Warning". Main hazards: harmful if swallowed, harmful 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 Phenthoate?

Phenthoate 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 Phenthoate?

CompoundList lists 11 suppliers of Phenthoate in India, China and Singapore. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Phenthoate in India?

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

What is the price of Phenthoate?

Suppliers quote Phenthoate 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 Phenthoate

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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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