Systox thiono

Modify Date: 2025-08-20 22:32:27

Systox thiono Structure
Systox thiono structure
 Common Name Systox thiono
CAS Number 298-03-3 Molecular Weight 258.338
Density 1.1±0.1 g/cm3 Boiling Point 297.2±42.0 °C at 760 mmHg
Molecular Formula C8H19O3PS2 Melting Point N/A
MSDS N/A Flash Point 133.6±27.9 °C

 Names

Name demeton-O
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.1±0.1 g/cm3
Boiling Point 297.2±42.0 °C at 760 mmHg
Molecular Formula C8H19O3PS2
Molecular Weight 258.338
Flash Point 133.6±27.9 °C
Exact Mass 258.051331
PSA 94.89000
LogP 2.65
Vapour Pressure 0.0±0.6 mmHg at 25°C
Index of Refraction 1.501

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
TF3125000
CHEMICAL NAME :
Phosphorothioic acid, O,O-diethyl O-(2-(ethylthio)ethyl) ester
CAS REGISTRY NUMBER :
298-03-3
BEILSTEIN REFERENCE NO. :
1709115
LAST UPDATED :
199706
DATA ITEMS CITED :
13
MOLECULAR FORMULA :
C8-H19-O3-P-S2
MOLECULAR WEIGHT :
258.36
WISWESSER LINE NOTATION :
2S2OPS&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 :
7500 ug/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
12 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
15 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
100 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - hamster
DOSE/DURATION :
10 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value

MUTATION DATA

TEST SYSTEM :
Rodent - hamster
DOSE/DURATION :
2 mg/kg
REFERENCE :
ARTODN Archives of Toxicology. (Springer-Verlag, Heidelberger Pl. 3, D-1000 Berlin 33, Fed. Rep. Ger.) V.32- 1974- Volume(issue)/page/year: 58,152,1986 *** REVIEWS *** TOXICOLOGY REVIEW PMDCAY Progress in Medical Chemistry. (Elsevier Science Pub. Co., Inc., 52 Vanderbilt Ave., New York, NY 10017) V.1- 1961- Volume(issue)/page/year: 10,85,1974

 Safety Information

Hazard Codes T+: Very toxic;N: Dangerous for the environment;
Risk Phrases 27/28-50
Safety Phrases 28-36/37-45-61
RIDADR 3018
WGK Germany 3
RTECS TF3125000
Packaging Group II
Hazard Class 6.1(a)

 Synthetic Route

2-(Ethylsulfanyl)ethanol structure

2-(Ethylsulfany...

CAS#:110-77-0

Parathion structure

Parathion

CAS#:56-38-2

~53%

Systox thiono Structure

Systox thiono

CAS#:298-03-3

Literature: Terreni, Marco; Pregnolato, Massimo; Resnati, Giuseppe; Benfenati, Emilio Tetrahedron, 1995 , vol. 51, # 29 p. 7981 - 7992
N/A structure

N/A

CAS#:51580-01-9

~%

Systox thiono Structure

Systox thiono

CAS#:298-03-3

Literature: Petrov,K.A. et al. J. Gen. Chem. USSR (Engl. Transl.), 1962 , vol. 32, # 3 p. 920 - 923,909 - 911 Full Text Show Details Hoffmann; Moore Journal of the American Chemical Society, 1958 , vol. 80, p. 1150,1152 Full Text Show Details Farbenfabr.Bayer Patent: DE935432 , 1953 ;
Triethyl phosphite structure

Triethyl phosphite

CAS#:122-52-1

~%

Systox thiono Structure

Systox thiono

CAS#:298-03-3

Literature: Hoffmann; Moore Journal of the American Chemical Society, 1958 , vol. 80, p. 1150,1152
2-(Ethylsulfanyl)ethanol structure

2-(Ethylsulfany...

CAS#:110-77-0

Diethyl chlorothiophosphate structure

Diethyl chlorot...

CAS#:2524-04-1

~%

Systox thiono Structure

Systox thiono

CAS#:298-03-3

Literature: Schrader Ang.Ch.Monogr., 1952 , vol. 62, p. 71,72

 Synonyms

O,O-Diethyl-O-[2-(ethylsulfanyl)ethyl]thiophosphat
Phosphorothioic acid, O,O-diethyl O-[2- (ethylthio)ethyl] ester
Phosphorothioic acid, O,O-diethyl O-[2-(ethylthio)ethyl] ester
O,O-diethyl O-[2-(ethylthio)ethyl] phosphorothioate
ETHYLTHIODEMETON
Demetonthione
Demeton-O
Thiolmecaptophos
EINECS 206-053-8
O,O-Diethyl O-(2-(eththio)ethyl) phosphorothioate
MFCD00055358
O,O-Diethyl O-[2-(ethylsulfanyl)ethyl] phosphorothioate
Thiophosphate de O,O-diéthyle et de O-[2-(éthylsulfanyl)éthyle]
diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-λ<sup>5</sup>-phosphane
Demeton thiono
mercaptophos
Systox thiono
O,O-diethyl O-2-ethylthioethyl phosphorothioate
O,O-Diethyl O-[2-(ethylthio)ethyl] phosphorothionate
Ethylthiometon
Di-septon
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