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Demeton-S-methyl sulfone

CAS No.
17040-19-6
Chemical Name:
Demeton-S-methyl sulfone
Synonyms
Danazol Impurity 5;OXYDEMETON-METHYL SULFONE;e158;E 158;m3/158;M 3/158;bayer20315;BAYER 20315;isometasystoxsulfone;Metasystox i sulfone
CBNumber:
CB0403825
Molecular Formula:
C6H15O5PS2
Molecular Weight:
262.28
MDL Number:
MFCD00055415
MOL File:
17040-19-6.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:48:19

Demeton-S-methyl sulfone Properties

Melting point 52℃
Boiling point 115 °C(Press: 0.01 Torr)
Density 1.315±0.06 g/cm3(Predicted)
storage temp. 0-6°C
form solid
BRN 1712536
Henry's Law Constant 2.3×1010 mol/(m3Pa) at 25℃, MacBean (2012)
InChI 1S/C6H15O5PS2/c1-4-14(8,9)6-5-13-12(7,10-2)11-3/h4-6H2,1-3H3
InChIKey PZIRJMYRYORVIT-UHFFFAOYSA-N
SMILES CCS(=O)(=O)CCSP(=O)(OC)OC || CCS(=O)(=O)CCSP(=O)(OC)OC
CAS DataBase Reference 17040-19-6
EWG's Food Scores 1
FDA UNII RSO143122K
UNSPSC Code 41116107
NACRES NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)  Skull and Crossbones (GHS06)Environment (GHS09)
GHS06,GHS09
Signal word  Danger
Hazard statements  H300+H330-H311-H411
Precautionary statements  P260-P264-P273-P280-P302+P352+P312-P304+P340+P310
Hazard Codes  T,N,T+
Risk Statements  21-25-51/53-26
Safety Statements  22-28-36/37-45-61
RIDADR  2783
WGK Germany  2
RTECS  TF9050000
HazardClass  6.1(a)
PackingGroup  II
HS Code  29159000
Storage Class 6.1A - Combustible acute toxic Cat. 1 and 2
very toxic hazardous materials
Hazard Classifications Acute Tox. 2 Inhalation
Acute Tox. 2 Oral
Acute Tox. 3 Dermal
Aquatic Chronic 2

Demeton-S-methyl sulfone price More Price(3)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 07313 Demeton-S-methyl-sulfon certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland 17040-19-6 100 mg $177 2026-04-30 Buy
Sigma-Aldrich 45424 Demeton-S-methyl-sulfon PESTANAL?, analytical standard 17040-19-6 250MG $66.6 2022-05-15 Buy
TRC D231375 Demeton-S-methylSulfone 17040-19-6 100mg $1230 2021-12-16 Buy
Product number Packaging Price Buy
07313 100 mg $177 Buy
45424 250MG $66.6 Buy
D231375 100mg $1230 Buy

Demeton-S-methyl sulfone Chemical Properties, Uses, Production

Description

Demeton-S-methyl sulfone is an organophosphate insecticide. Very little data is available regarding its environmental fate or its ecotoxicology. Demeton-O-methyl sulfone is highly toxic if consumed, is an acetylcholinesterase inhibitor and a neurotoxin.

Uses

A metabolite of Demeton-S-methyl (D231370). An organophosphorus pesticide biomarker.

Production Methods

Demeton-S-methyl sulfone is commercially produced by oxidizing demeton-S-methyl, an organophosphorothioate compound, to its sulfone derivative using strong oxidising agents such as hydrogen peroxide or peracids. The process begins with the synthesis of demeton-S-methyl via the reaction of O,O-dimethyl phosphorothioate with 2-(ethylthio)ethanol. This intermediate is then subjected to controlled oxidation, converting the sulphur atom to a sulfone group while preserving the phosphoric ester structure. The reaction is typically carried out in organic solvents under mild heating, followed by purification through crystallisation or distillation.

Definition

ChEBI: Demeton-S-methylsulphon is a sulfone.

Mechanism of action

Systemic with contact and stomach action. Acetylcholinesterase (AChE) inhibitor.

Safety Profile

Poison by ingestion, inhalation, intraperitoneal, and intravenous routes. Moderately toxic by skin contact. Mutation data reported. An insecticide. When heated to decomposition it emits very toxic fumes of POx and SOx. See also DEMETON-0 + DEMETON-S and other demeton entries.

Pesticide Type

Insecticide; Acaricide; Metabolite

Demeton-S-methyl sulfone Preparation Products And Raw materials

Raw materials

Preparation Products

DEMETON-S-METHYL SULFOXIDE S-[2-(Ethylsulfonyl)ethyl]phosphorothioic Acid O,O-DiMethyl Ester DEMETON-S-METHYL SULPHONE DIOXYDEMETON-S-METHYL META SYSTOX R SULFONE O,O-DIMETHYL-S-(2-ETHYLSULFONYLETHYL) PHOSPHOROTHIOATE O,O-DIMETHYL-S-(3-OXO-3-THIAPENTYL)-THIOSPHOSPHATE S-[2-(ETHYLSULFONYL)ETHYL]O,O-DIMETHYL PHOSPHOROTHIOATE BAYER 20315 bayer20315 Demethon S-methyl sulfone demeton-s-methylsulphon Dimethyl S-(2-ethsulfonylethyl)thiophosphate dimethyls-(2-ethsulfonylethyl)thiophosphate E 158 e158 Isometasystox sulfone isometasystoxsulfone Isomethylsystox sulfone o,o-dimethyls-ethylsulphonylethylphosphorothiolate Phosphorothioic acid, O,O-dimethyl S-(2-(ethylsulfonyl)ethyl) ester Phosphorothioic acid, S-[2-(ethylsulfonyl)ethyl] O,O-dimethyl ester phosphorothioicacid,o,o-dimethyls-(2-(ethylsulfonyl)ethyl)ester S-[2-(Ethylsulfonyl)ethyl] o,o-dimethyl thiophosphate Sulfone, demeton-S-methyl- DIOXYDEMETON-S-METHYL, 100MG, NEAT DEMETON-S-METHYL-SULFON PESTANAL, 250 MG demeton-s-methyl sulfone (iso) DEMETON-S-METHYLSULFONE STANDARD demeton-S-methylsulphon S-2-ethylsulphonylethyl dimethyl phosphorothioate DEMETON-S-METHYL-SULFON isomethylsystoxsulfone M 3/158 m3/158 Metaisosystox-solfon 20 315 metaisosystox-solfon20315 Metasystox i sulfone O,O-Dimethyl S-(2-ethsulfonylethyl)phosphorothioate O,O-Dimethyl S-[2-(ethylsulfonyl)ethyl] monothiophosphate O,O-Dimethyl S-[2-(ethylsulfonyl)ethyl] thiophosphate O,O-Dimethyl S-ethyl-2-sulfonylethyl phosphorothiolate O,O-Dimethyl S-ethylsulphonylethyl phosphorothiolate O,O-Dimethyl-S-(2-aethylsulfonyl-aethyl)-thiolphosphat o,o-dimethyls-(2-ethsulfonylethyl)phosphorothioate o,o-dimethyls-ethyl-2-sulfonylethylphosphorothiolate Demeton-S-methyl sulfone Solution in Methanol, 100μg/mL Demeton-S-methyl-sulfon Demeton-S-methyl-sulfone 10 μg/ml Cyclohexane Demeton-S-methyl-sulfone 10.0 μg/ml Acetonitrile Demeton-S-methyl-sulfone 100 μg/ml Toluene Demeton-S-methyl sulfone in Acetonitrile Demeton-S-methyl-sulfone 100 μg/mL in Acetonitrile Danazol Impurity 5 OXYDEMETON-METHYL SULFONE Demeton-S-methyl sulfone 17040-19-6 C6H15O5PS2 Inhibitors, Metabolites & Impurities, Phosphorylating and Phosphitylating Agents, Sulfur & Selenium Compounds