*** 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
REFERENCE : 4-01-00-02461 (Beilstein Handbook Reference)
LAST UPDATED : 199710
DATA ITEMS CITED : 11
MOLECULAR FORMULA : C8-H19-O3-P-S2
MOLECULAR WEIGHT : 258.36
WISWESSER LINE NOTATION : 2S2SPO&O2&O2
COMPOUND DESCRIPTOR : Agricultural Chemical
Drug
SYNONYMS/TRADE NAMES :
* Demeton-S
* O,O-Diaethyl-S(2-aethylthio-aethyl)-monothiophosphat
* Diethyl S-(2-ethioethyl)thiophosphate
* O,O-Diethyl S-(2-eththioethyl)phosphorothioate
* O,O-Diethyl S-ethyl-2-ethylmercaptophosphorothiolate
* O,O-Diethyl S-2-(ethylthio)ethyl phosphorothioate
* O,O-Diethyl S-(2-(ethylthio)ethyl) phosphorothiolate
* O,O-Diethyl-S-(2-ethylthio-ethyl)-monothiofosfaat
* O,O-Dietil-S-(2-etiltio-etil)-monotiofosfato
* O,O-Dietyl-S-2-etylmerkaptoetyltiofosfat
* Ethanethiol, 2-(ethylthio)-, S-ester with O,O-diethyl phosphorothioate
* Isodemeton
* Isosystox
* Izosystox
* PO-Systox
* Thioldemeton
* Thiol systox
* Thiophosphate de O,O-diethyle et de S-(2-ethylthio-ethyle)
*** 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
*** STATUS IN U.S. ***
EPA TSCA Section 8(d) unpublished health/safety studies
EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998
*** END OF RECORD ***