Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Demeton
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: Demeton
Price: ￥218.0/1ml
Purity: 98.0%
Stocking Period: 1 Day
Contact: Liu jia
Email: 2130147988@qq.com

126-75-0

126-75-0 structure

126-75-0 structure

Name: Demeton
Chemical Name: demeton-S
CAS Number: 126-75-0
Molecular Formula: C₈H₁₉O₃PS₂
Molecular Weight: 258.338
Catalog: Chemical pesticide Insecticide Organophosphorus pesticide
Create Date: 2018-02-05 08:00:00
Modify Date: 2025-08-20 17:12:08

Name	demeton-S
Synonyms	Diethyl [2-(ethylthio)ethyl] phosphorothionate PO-Systox O,O-diethyl S-2-ethylthioethyl phosphorothioate Demeton Demetonthiol O,O-Diethyl S-[2-(ethylsulfanyl)ethyl] phosphorothioate O,O-Diethyl-S-[2-(ethylsulfanyl)ethyl]thiophosphat Demeton thiol ISOSYSTOX Phosphorothioic acid, O,O-diethyl S-[2-(ethylthio)ethyl] ester O,O-diethyl S-[2-(ethylthio)ethyl] phosphorothioate Isodemeton Thioldemeton Demeton o,s mercaptophos thiol Diethyl 2-(ethylthio)ethyl phosphorothionate O,O-diethyl-S-2-ethylthioethyl phosphorothioate Izosystox [Czech] Systox thiol MFCD00055359 Izosystox O,O-diethyl S-[2-(ethylsulfanyl)ethyl] thiophosphate Disulfoton oxygen analog 1-diethoxyphosphorylsulfanyl-2-ethylsulfanylethane Thiophosphate de O,O-diéthyle et de S-[2-(éthylsulfanyl)éthyle] O,O-diethyl S-[2-(ethylthio)ethyl] thiophosphate Demeton-S thiophosphoric acid O,O'-diethyl ester-S-(2-ethylsulfanyl-ethyl ester) Thiol systox

Density	1.1±0.1 g/cm3
Boiling Point	320.5±44.0 °C at 760 mmHg
Melting Point	95-97℃
Molecular Formula	C₈H₁₉O₃PS₂
Molecular Weight	258.338
Flash Point	147.6±28.4 °C
Exact Mass	258.051331
PSA	95.94000
LogP	2.38
Vapour Pressure	0.0±0.7 mmHg at 25°C
Index of Refraction	1.493
Storage condition	0-6°C

CHEMICAL IDENTIFICATION

RTECS NUMBER :: TF3130000

CHEMICAL NAME :: Phosphorothioic acid, O,O-diethyl S-(2-(ethylthio)ethyl) ester

CAS REGISTRY NUMBER :: 126-75-0

BEILSTEIN REFERENCE NO. :: 1709166

LAST UPDATED :: 199710

DATA ITEMS CITED :: 11

MOLECULAR FORMULA :: C8-H19-O3-P-S2

MOLECULAR WEIGHT :: 258.36

WISWESSER LINE NOTATION :: 2S2SPO&O2&O2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1500 ug/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: AEPPAE Naunyn-Schmiedeberg's Archiv fuer Experimentelle Pathologie und Pharmakologie. (Berlin, Ger.) V.110-253, 1925-66. For publisher information, see NSAPCC. Volume(issue)/page/year: 217,144,1953

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1500 ug/kg

TOXIC EFFECTS :: Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - true cholinesterase

REFERENCE :: AMIHAB AMA Archives of Industrial Health. (Chicago, IL) V.11-21, 1955-60. For publisher information, see AEHLAU. Volume(issue)/page/year: 13,606,1956

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1700 ug/kg

TOXIC EFFECTS :: Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - true cholinesterase

REFERENCE :: BCPCA6 Biochemical Pharmacology. (Pergamon Press Inc., Maxwell House, Fairview Park, Elmsford, NY 10523) V.1- 1958- Volume(issue)/page/year: 6,244,1961

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 5800 ug/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 2(5),7,1958

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 174 ug/kg

TOXIC EFFECTS :: Peripheral Nerve and Sensation - flaccid paralysis without anesthesia (usually neuromuscular blockage)

REFERENCE :: PHARAT Pharmazie. (VEB Verlag Volk und Gesundheit, Neue Gruenstr. 18, Berlin DDR-1020, Ger. Dem. Rep.) V.1- 1946- Volume(issue)/page/year: 35,806,1980

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 6 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: AEPPAE Naunyn-Schmiedeberg's Archiv fuer Experimentelle Pathologie und Pharmakologie. (Berlin, Ger.) V.110-253, 1925-66. For publisher information, see NSAPCC. Volume(issue)/page/year: 217,144,1953

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Unreported

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 5600 ug/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 7(5),38,1963

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 5 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 2(5),7,1958

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 5500 ug/kg

TOXIC EFFECTS :: Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - true cholinesterase

REFERENCE :: AMIHAB AMA Archives of Industrial Health. (Chicago, IL) V.11-21, 1955-60. For publisher information, see AEHLAU. Volume(issue)/page/year: 13,606,1956

Symbol	GHS06
Signal Word	Danger
Hazard Statements	H300 + H310
Precautionary Statements	P264-P280-P301 + P310-P302 + P350-P310
Hazard Codes	T+: Very toxic;
Risk Phrases	R27/28
Safety Phrases	S28;S45;S36/S37
RIDADR	UN 3018
RTECS	TF3130000
Packaging Group	I
Hazard Class	6.1(a)

Precursor 10
762-04-9 693-07-2 814-49-3 298-03-3
26750-44-7 64048-02-8 2303-76-6 122-52-1
91725-32-5 811-51-8
DownStream 4
598-02-7 26750-44-7 2496-91-5 2496-92-6

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