Phosmet
Also known as Fosmet, Decemthion, Phthalophos
Key facts
What buyers check first
- Appearance
- Off-white crystalline solid
- Melting point
- 72 to 72.7
- Boiling point
- Decomposes below boiling point
- Density
- 1.03 g/cm³
- Solubility
- At 25 °C: 25 mg/L water, 650 g/L acetone, 600 g/L benzene, 5 g/L kerosene, 50 g/L methan…
- HS code
- 293090
- Category
- Insecticides and acaricides
- UN number
- UN 3077
What is Phosmet?
Plain description, key identifiers and synonyms
Phosmet is an organothiophosphate insecticide, an organic thiophosphate and a member of phthalimides. It has a role as an acaricide, an agrochemical and an EC 3.1.1.7 (acetylcholinesterase) inhibitor. It is functionally related to a N-(hydroxymethyl)phthalimide.
Identifiers
Registry numbers, names and line notations, tap to copy
- IUPAC name
- 2-(dimethoxyphosphinothioylsulfanylmethyl)isoindole-1,3-dione
- CAS number
- 732-11-6 CAS number cross-checkedOther or deprecated CAS: 5104-30-3
- EC number
- 211-987-4
- Molecular formula
- C11H12NO4PS2
- UNII
- VN04LI540Y
- MDL number
- MFCD00055501
- InChIKey
- LMNZTLDVJIUSHT-UHFFFAOYSA-N
- InChI
- InChI=1S/C11H12NO4PS2/c1-15-17(18,16-2)19-7-12-10(13)8-5-3-4-6-9(8)11(12)14/h3-6H,7H2,1-2H3
- SMILES (canonical and isomeric)
- COP(=S)(OC)SCN1C(=O)C2=CC=CC=C2C1=O
Synonyms
- Fosmet
- Decemthion
- Phthalophos
- Prolate
- Imidan
- Imidathion
- Percolate
- Ftalophos
- Kemolate
- Safidon
- Simidan
- Smidan
- Decemthion P-6
- PMP (Pesticide)
- Phtalofos
- Prolate E
- Stauffer R 1504
- Imidan WP
- Prolate 5 Dust
- Decemtion P-6
- Imidan 5 Dust
- O,O-Dimethyl S-phthalimidomethyl phosphorodithioate
- Prolate 8-OS
- O,O-Dimethyl phthalimidomethyl phosphorodithioate
- O,O-Dimethyl S-(phthalimidomethyl) dithiophosphate
Show all 39 synonymsShow fewer synonyms
- ENT 25,705
- Phthalimido O,O-dimethyl phosphorodithioate
- Phthalimidomethyl O,O-dimethyl phosphorodithioate
- (O,O-Dimethyl-phthalimidiomethyl-dithiophosphate)
- O,O-Dimethyl S-(N-phthalimidomethyl)dithiophosphate
- O,O-Dimethyl S-(phthalimidomethyl)phosphorodithioate
- N-(Dimethoxyphosphinothioylthiomethyl)phthalimide
- O,O-Dimethyl S-phthalimidomethyl phosphorothionate
- Phthalimide, N-(mercaptomethyl)-, S-ester with O,O-dimethyl phosphorodithioate
- Phosphorodithioic acid, O,O-dimethyl ester, S-ester with N-(mercaptomethyl)phthalimide
- Phosphorodithioic acid, S-((1,3-dihydro-1,3-dioxo-isoindol-2-yl)methyl) O,O-dimethyl ester
- S-((1,3-Dihydro-1,3-dioxo-2H-isoindol-2-yl)methyl) O,O-dimethyl phosphorodithioate
- N-(Mercaptomethyl)phthalimide S-(O,O-dimethyl phosphorodithioate)
- O,O-Dimethyl phosphorodithioate S-ester with N-(mercaptomethyl)phthalimide
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 | Off-white crystalline solidexp.Measured value |
|---|---|
| Odour | OFFENSIVE ODORexp.Measured value |
| Melting point | 72 to 72.7exp.Measured value |
| Boiling point | Decomposes below boiling pointexp.Measured value |
| Density | 1.03 g/cm³exp.Measured value |
| Solubility | At 25 °C: 25 mg/L water, 650 g/L acetone, 600 g/L benzene, 5 g/L kerosene, 50 g/L methanol, 300 g/L toluene, methyl isobutyl ketone, 250 g/L xylene.exp.Measured value |
| Vapour pressure | 4.9 × 10⁻⁷ mm Hg at 20-25 °Cexp.Measured value |
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 | 317.33 g/molcalc.Computed value |
|---|---|
| Exact mass | 316.9945 Dacalc.Computed value |
| LogP (octanol/water) | 2.49calc.Computed value |
| Topological polar surface area | 55.84 Ųcalc.Computed value |
| Hydrogen bond donors | 0calc.Computed value |
| Hydrogen bond acceptors | 6calc.Computed value |
| Rotatable bonds | 5calc.Computed value |
| Heavy atoms | 19calc.Computed value |
| Rings | 2calc.Computed value |
| Aromatic rings | 1calc.Computed value |
| Fraction sp3 carbons | 0.27calc.Computed value |
| Formal charge | 0calc.Computed value |
| Stereocentres | 0calc.Computed value |
| Lipinski rule of five | Passes (0 violations)calc.Computed value |
Calculated for screening. Confirm critical figures with the supplier.
Murcko scaffold
The ring system that remains when every side chain is removed
O=C1NC(=O)c2ccccc21
2 rings, 11 atoms, the Phthalimide ring system.
2,700 other chemicals share this scaffoldSafety and hazards
GHS classification summary, not a safety data sheet
Hazard statements
- H301Toxic if swallowed.
- H332Harmful if inhaled.
- H361fSuspected of damaging fertility.
- H370Causes damage to organs.
- H400Very toxic to aquatic life.
- H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (18)
- P203Obtain, read and follow all safety instructions before use.
- P260Do not breathe dust, fume, gas, mist, vapours or spray.
- P261Avoid breathing dust, fume, gas, mist, vapours or spray.
- P264Wash skin thoroughly after handling.
- P270Do not eat, drink or smoke when using this product.
- P271Use only outdoors or in a well-ventilated area.
- P273Avoid release to the environment.
- P280Wear protective gloves, protective clothing, eye protection and face protection.
- P301 + P316If swallowed: Get emergency medical help immediately.
- P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
- P308 + P316If exposed or concerned: Get emergency medical help immediately.
- P317Get medical help.
- P318If exposed or concerned, get medical advice.
- P321Specific treatment (see supplemental first aid instructions on the label).
- P330Rinse mouth.
- P391Collect spillage.
- P405Store locked up.
- P501Dispose of contents and container in accordance with local regulations.
- UN number
- UN 3077
- 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 aidPhosmet suppliers
Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings
- United States, Yuma ManufacturerUnclaimed profilePhosmetGrade, purity and minimum order on requestPrice on request
- Price on request
- Price on request
- China, ChangzhouUnclaimed profilePhosmetGrade, purity and minimum order on requestPrice on request
- Hong Kong, Kwun Tong,KowloonUnclaimed profilePhosmetGrade, purity and minimum order on requestPrice on request
- United States, San DiegoUnclaimed profilePhosmetGrade, purity and minimum order on requestPrice on request
- United States, San DiegoUnclaimed profilePhosmetGrade, purity and minimum order on requestPrice on request
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
18 suppliers in 7 countries
- United States7
- China4
- Hong Kong3
- Brazil1
- Canada1
- France1
- and 1 more countries
Send one request to many suppliers
Choose up to 10 suppliers or let us match your request. Compare quotes side by side, free.
Phosmet price
Indicative price range per kg from live supplier offers
Suppliers quote this chemical on request. Send one free request and compare quotes side by side.
Uses and applications
What the substance is used for, by industry and function
Presently registered in the U.S. for application to kiwifruit, green peas, lowbush blueberries, sweet cherries, tart cherries, pears, grapes, pistachios, peacans, walnuts, filberts, brazil nuts, beechnuts, butternuts, cashew, chestnut, chinquapin, hickory nuts, and macadamia nuts. Residential uses - domestic pets, household ornamentals, household fruit trees - cancelled.
Prolate/Lintox -HD Insecticidal Spray & Backrubber for Livestock (contains phosmet) controls horn flies, lice, mange, and ticks on cattle, and lice and mange on swine.
Non-systemic acaricide and insecticide for the control of lepidopterous larvae, aphids, suckers, fruit flies, and spider mites on pome fruit, stone fruit, citrus fruit, ornamentals and vines, Colorado beetles on potatoes, boll weevils on cotton, olive moths and olive thrips on olives, blossom beetles on oilseed rape, leaf beetles and weevils on alfalfa, European corn borers on maize and sorghum, sweet potato weevils on sweet potatoes in storage. Also used as an animal ectoparasiticide.
Use classes: Insecticides, Pesticides, Animal Drugs.
Industries and functions
Pharmacological actions
- Insecticides
Roles
- acaricide
- agrochemical
- enzyme inhibitor
- pesticide
Functional uses
- Biocide
Pharmacology
Phosmet is a synthetic trialkyl phosphate compound and organophosphate acetylcholinesterase inhibitor that is used as a pesticide. It is characterized as an off-white crystalline solid with an offensive odor, and exposure occurs by inhalation, ingestion, or contact.
How it is made
Phosmet is produced by reaction of N-chloromethylphthalimide with dimethyldithiophosphoric acid.
Phthalimide is condensed with formaldehyde and the product converted to chloride which is reacted with sodium dimethylphosphorodithioate.
Prepn: Fancher, US 2767194 (1956 to Stauffer)
Regulatory status
Inventories, regulations and trade controls that list this substance
Europe
- EU harmonised classification (CLP Annex VI)Index no: 015-101-00-5
Health and food
- EU Cosmetics Regulation Annex II, prohibited in cosmeticsName: Phosmet (ISO), S-[(1,3-dioxo-1,3-dihydro-2H- isoindol-2-yl)methyl]-O,O-dimethyl phosphorodithioate, O,O-dimethyl-S-phthalimidomethyl phosphorodithioate,…
HS code and trade data
Customs classification and reported world trade statistics
Global trade
World import and export statistics for the HS code Phosmet is traded under.
Organo-sulphur compounds, other
- China40.7%
- United States10.9%
- Japan9.3%
- United States13.3%
- Brazil12.6%
- China6.6%
The HS code shown for Phosmet is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.
Related chemicals
Parent and salt forms, stereoisomers, similar structures and isomers
Stereoisomers and isotopic forms
Same connectivity, different stereochemistry or isotopes (same InChIKey skeleton)
Similar structures
Nearest neighbours by Morgan fingerprint Tanimoto similarity
Frequently asked questions
Quick answers about Phosmet, based on the data on this page
What is Phosmet?
What is the CAS number of Phosmet?
What is the molecular formula and weight of Phosmet?
What is Phosmet used for?
Is Phosmet hazardous?
What is the HS code of Phosmet?
Where can I buy Phosmet?
What is the price of Phosmet?
Guides for buyers
Practical guides that help when you source, ship or handle Phosmet
- Guide, SafetyHow to read a safety data sheet in 10 minutesA section by section method to pull the essentials out of any 16 section SDS: identity, hazards, composition, storage, PPE, properties, transport and emergency measures.Read
- Guide, Trade and logisticsShipping dangerous goods: UN numbers, classes and packing groupsHow the UN dangerous goods system works for chemicals, from the nine classes and UN numbers to packing groups, UN packaging marks, labels, documents and segregation.Read
- Guide, SafetyGHS pictograms, signal words and hazard statements explainedA practical guide to the nine GHS pictograms, the signal words Danger and Warning, H and P statements, and how to read a chemical label in seconds.Read
Get quotes for Phosmet
Embed this structure on your websiteShow code
Paste this code into your page to show the 2D structure of Phosmet with a 3D view, its CAS number where known and a link back to this page. Free to use with the link kept.
<iframe src="https://www.compoundlist.com/embed/structure/phosmet-732-11-6" title="Phosmet structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>Explore more in Insecticides and acaricides or HS code 293090