ChemicalBook > CAS DataBase List > DISULFOTON

DISULFOTON

Product Name
DISULFOTON
CAS No.
298-04-4
Chemical Name
DISULFOTON
Synonyms
M-74;S276;Dimaz;Dution;Frumin;B-19639;fruming;NA 2783;ekatine;DISYSTON
CBNumber
CB4208774
Molecular Formula
C8H19O2PS3
Formula Weight
274.4
MOL File
298-04-4.mol
More
Less

DISULFOTON Property

Melting point:
110-112℃
Boiling point:
bp0.01 108°; bp1.5 132-133°
Density 
1.1445 g/cm3 (20 ºC)
vapor pressure 
7.2 x 10-3 Pa (20 °C)
refractive index 
1.5501 (589.3 nm 20℃)
Flash point:
133 °C
storage temp. 
0-6°C
Water Solubility 
25 mg l-1 (20 °C)
form 
liquid
Merck 
13,3400
BRN 
1709167
CAS DataBase Reference
298-04-4(CAS DataBase Reference)
EPA Substance Registry System
Disulfoton (298-04-4)
More
Less

Safety

Hazard Codes 
T+,N
Risk Statements 
27/28-50/53
Safety Statements 
28-36/37-45-60-61
RIDADR 
3018
WGK Germany 
3
RTECS 
TD9275000
HazardClass 
6.1(a)
PackingGroup 
I
Hazardous Substances Data
298-04-4(Hazardous Substances Data)
Toxicity
LD50 in female, male rats (mg/kg): 2.3, 6.8 orally; 6, 15 dermally (Gaines)
More
Less

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H300Fatal if swallowed

H310Fatal in contact with skin

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P310Immediately call a POISON CENTER or doctor/physician.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

P302+P350IF ON SKIN: Gently wash with plenty of soap and water.

More
Less

N-Bromosuccinimide Price

Sigma-Aldrich
Product number
45460
Product name
Disulfoton
Purity
PESTANAL
Packaging
250mg
Price
$54
Updated
2021/12/16
Sigma-Aldrich
Product number
49784
Product name
Disulfoton
Purity
reference material
Packaging
100 mg
Price
$130
Updated
2021/12/16
TRC
Product number
D493695
Product name
Disulfoton
Packaging
500mg
Price
$160
Updated
2021/12/16
AHH
Product number
MT-50518
Product name
Disulfoton
Purity
98%
Packaging
5g
Price
$245
Updated
2021/12/16
More
Less

DISULFOTON Chemical Properties,Usage,Production

Chemical Properties

Disulfoton is a dark yellowish oil with an aromatic, sulfurous odor. It is soluble in most organic solvents and fatty oils. Disulfoton is a selective, systemic insecticide and acaricide. It is used for seed coating and for soil application to protect from insect attacks, for the control of sucking insects, aphids, leaf hoppers, thrips, beet-fl ies, spider mites, and coffeeleaf miners. Disulfoton has been used extensively in pest control on a variety of crops, such as cotton, tobacco, sugar beets, corn, peanuts, wheat, ornamentals, cereal grains, and potatoes. It is grouped by the US EPA under RUP. Human exposures to disulfoton occur through breathing contaminated air, drinking contaminated water, eating contaminated food, and working in industries that manufacture and formulate the pesticide.

Uses

Systemic insecticide and acaricide for control of sucking insects and mites in fruits, vegetables, cotton and forestry nurseries.

Uses

Disulfoton is used to control sucking insects and mites in a wide range of crops.

Uses

DISULFOTON is used as systemic insecticide and acaracide.

Definition

ChEBI: An organic thiophosphate that is the diethyl ester of S-[2-(ethylsulfanyl)ethyl] dihydrogen phosphorodithioate.

General Description

Disulphoton is a dark yellowish oil with an aromatic, sulphurous odour. It is soluble in most organic solvents and fatty oils. Disulphoton is a selective, systemic insecticide and acaricide. It is used for seed coating and for soil application to protect from insect attacks and for the control of sucking insects, aphids, leafhoppers, thrips, beetflies, spider mites, and coffee-leaf miners. Disulphoton has been extensively used in pest control on a variety of crops such as cotton, tobacco, sugar beets, corn, peanuts, wheat, ornamentals, cereal grains, and potatoes. It is grouped by the U.S. EPA under RUP. Human exposures to disulphoton occur through breathing contaminated air, drinking contaminated water, eating contaminated food, and working in industries that manufacture and formulate the pesticide.

Reactivity Profile

Organothiophosphates, such as DISULFOTON, are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.

Health Hazard

Highly toxic, may be fatal if inhaled, swallowed or absorbed through skin. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.

Health Hazard

Disulfoton is highly toxic to animals and humans by all routes of exposures, namely, by dermal absorption, through ingestion, and inhalation by the respiratory route. The symptoms of poisoning include blurred vision, fatigue, headache, dizziness, sweating, tearing, and salivation. It inhibits cholinesterase and affects the nervous system function. It does not cause delayed neurotoxicity. Prolonged period of exposures to high concentrations of disulfoton cause harmful effects to the nervous system with symptoms such as narrowing of the pupils, vomiting, diarrhea, drooling, diffi culty in breathing, lung edema, tremors, convulsions, coma, and death. Disulfoton causes no mutagenic or teratogenic effects in laboratory animals. There are no reports indicating that disulfoton causes cancer in animals or humans. The DHHS, the IARC, and the US EPA have not classifi ed disulfoton as to its ability to cause cancer.

Fire Hazard

Combustible material: may burn but does not ignite readily. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.

Agricultural Uses

Insecticide, Acaricide: All products formulated at greater than 2% disulfoton are classified as Restricted Use Pesticides (RUP). Disulfoton is a selective, systemic organophosphate insecticide and acaricide that is especially effective against sucking insects. It is used to control aphids, leafhoppers, thrips, beet flies, spider mites, and coffee leaf miners. Not approved for use in EU countries. There are 21 global suppliers.

Trade name

BAY 19639®; BAYER 19639®; DIMAZ®; DISULFATON®; DI-SYSTON®[C]; DISYSTON®[C]; DISYSTOX®; DITHIODEMETON®; DITHIOSYSTOX®; EKATIN TD®; FRUMIN-AL®; FRUMIN G®; GLEBOFOS®; M-74®; S 276®; SOLVIREX®; THIODEMETON®; THIODEMETRON®

Safety Profile

Poison by ingestion, inhalation, skin contact, intraperitoneal, and intravenous routes. Human mutation data reported. When heated to decomposition it emits veq toxic SOx and POx. See also various demeton entries and ESTERS.

Environmental Fate

Soil/Plant. Disulfoton was metabolized in soil and plants to the corresponding sulfoxide and sulfone via oxidation of the thioether sulfur atoms (Metcalf et al., 1957; Getzin and Shanks, 1970; Takase et al., 1972; Clapp et al., 1976; Worthing and Hance, 1991), the corresponding phosphorothioate analogs and then to derivatives of O,O-diethyl hydrogen phosphate and 2-ethylthioethyl mercaptan (Worthing and Hance, 1991). Disulfoton is rapidly oxidized in soil to its sulfoxide and sulfone with disulfoton oxon sulfoxide and disulfoton oxon sulfone appearing in small amounts (Szeto et al., 1983). In a Portneuf silt loam soil, the persistence of the sulfoxide and sulfone was 32 and >64 days, respectively (Clapp et al., 1976).
Disulfoton was translocated from a sandy loam soil into asparagus tips. Disulfoton sulfoxide, disulfoton sulfone, disulfoton oxon sulfoxide and disulfoton oxon sulfone were recovered as metabolites (Szeto and Brown, 1982; Szeto et al., 1983). Disulfoton s
Groundwater. According to the U.S. EPA (1986) disulfoton has a high potential to leach to groundwater.
Photolytic. Disulfoton was rapidly oxidized to disulfoton sulfoxide and trace amounts (<5% yield) of disulfoton sulfone when sorbed on soil and exposed to sunlight (half-life 1–4 days) (Gohre and Miller, 1986). The photosensitized oxidation was probably due to the presence of singlet oxygen (Gohre and Miller, 1986; Zepp et al., 1981). The degradation rate was higher in soils containing the lowest organic carbon (Gohre and Miller, 1986). Chemical/Physical. Emits toxic fumes of phosphorus and sulfur oxides when heated to decomposition (Sax and Lewis, 1987; Lewis, 1990).
When fertilizers containing superphosphate and ammonium nitrate were impregnated with disulfoton, the latter chemically degraded to form disulfoton sulfone and disulfoton sulfoxide (Ibrahim et al., 1969).
The reported half-lives for abiotic hydrolysis

Metabolic pathway

Disulfoton is metabolised by an analogous route to phorate. The principal route of disulfoton metabolism in all media is activation via oxidation of the thioether group to the sulfoxide (rapid) and sulfone (slower). Thioether oxidation occurs preferentially to oxidative desulfuration of the P=S group to the oxon, which is usually only present in trace amounts and there is good evidence that the sulfoxide and sulfone oxons arise via disulfoton sulfoxide and sulfone rather than disulfoton oxon. The more polar thiooxidised metabolites are translocated in plants and are responsible for the compound's systemic action.

Metabolism

The metabolic routes of disulfoton are essentially the same in plants, insects, and mammals, involving the oxidation of the sulfide group into the sulfoxide and then sulfone, oxidative desulfuration to the corresponding oxons, and hydrolysis to diethyl phosphorothioate. In mammals, orally administered disulfoton is rapidly metabolized and excreted in the urine. Disulfoton is rapidly degraded in soil; DT50 (20 ?C) was 1.3–2 d.

Toxicity evaluation

The acute oral LD50 for rats is 2–12 mg/kg. Inhalation LC50 (4 h) for rats is 0.06–0.015 mg/L air. NOEL (2 yr) for rats is 1 mg/kg diet (0.05 mg/kg/d). ADI is 0.3 μg/kg b.w.

Degradation

Disulfoton is stable at acidic and neutral pH values but it is hydrolysed in alkaline media.

DISULFOTON Preparation Products And Raw materials

Raw materials

Preparation Products

More
Less

DISULFOTON Suppliers

298-04-4, DISULFOTONRelated Search:


  • s-2-(ethylthio)ethylo,o-diethylesterofphosphorodithioicacid
  • Solvigran
  • Solvirex
  • Thiodemetron
  • VUagT 1-4
  • VUagT 1964
  • M-74
  • BAYER 19639
  • ETHYLTHIOMETHON
  • DISYSTON
  • DI-SYSTON(R)
  • DISULFOTON
  • DITHIODEMETON(R)
  • DITHIO-SYSTOX(R)
  • Disulfoton Standard
  • O,O-DIETHYL-S-[2-(ETHYLTHIO)ETHYL]-PHOSPHORODITHIOATE
  • S276
  • THIODEMENTON
  • THIODEMET
  • THIODEMETON(R)
  • phosphorodithioicacid,o,o-diethyls-(2-(ethylthio)ethyl)ester
  • Phosphorodithioicacid,O,O-diethylS-[2-(ethylthio)ethyl]ester(6CI,7CI,8CI,9CI)
  • phosphorodithioicacido,o-diethyls-[2-(ethylthio)ethyl]ester
  • Phosphorodithionic acid, S-2-(ethylthio)ethyl-O,O-diethyl ester
  • phosphorodithionicacid,s-2-(ethylthio)ethyl-o,o-diethylester
  • Rcra waste number P039
  • rcrawastenumberp039
  • S-2-(Ethylthio)ethyl O,O-diethyl ester of phosphorodithioic acid
  • B-19639
  • diethoxy-(2-ethylsulfanylethylsulfanyl)-sulfanylidene-$l^{5}-phosphane
  • diethoxy-[2-(ethylthio)ethylthio]-thioxo-phosphorane
  • Bay 19639
  • BAY S 276
  • bay19639
  • Dimaz
  • Disipton
  • Disulfaton
  • Disulfoton mixture
  • Disyston FE-10
  • Di-Syston G
  • Disystox
  • Dithiodemeton
  • Dithiophosphate de O,O-diethyle et de S-(2-ethylthio-ethyle)
  • dithiophosphatedeo,o-diethyleetdes-(2-ethylthio-ethyle)
  • dithiophosphatedeo,o-diethyleetdes-(2-ethylthio-ethyle)(french)
  • Dithiosystox
  • Frumin G
  • fruminal
  • fruming
  • Glebofos
  • Insyst-D
  • M 74 (Pesticide)
  • NA 2783
  • O,O-Diaethyl-S-(2-aethylthio-aethyl)-dithiophosphat
  • O,O-Diaethyl-S-(3-thia-pentyl)-dithiophosphat
  • O,O-Diethyl 2-ethylthioethyl phosphorodithioate
  • O,O-Diethyl S-(2-eththioethyl) phosphorodithioate
  • O,O-Diethyl S-(2-eththioethyl) thiothionophosphate