-
Name
3-(dimethoxyphosphinothioylsulfanylmethyl)-5-ethoxy-1,3,4-thiadiazol-2 -one
- EINECS
- CAS No. 2669-32-1
- Density 1.54g/cm3
- Solubility
- Melting Point
- Formula C7H13 N2 O4 P S3
- Boiling Point 362.2°Cat760mmHg
- Molecular Weight 316.363
- Flash Point 172.8°C
- Transport Information
- Appearance
- Safety Poison by ingestion. A pesticide. When heated to decomposition it emits very toxic fumes of NOx, POx, and SOx.
- Risk Codes
-
Molecular Structure
- Hazard Symbols
- Synonyms Phosphorodithioicacid, O,O-dimethyl ester, S-ester with 2-ethoxy-4-(mercaptomethyl)-D2-1,3,4-thiadiazolin-5-one(7CI,8CI); GS 12968; Geigy 12968; Geigy GS 12968; Lythidathion; O,O-DimethylS-(5-ethoxy-1,3,4-thiadiazol-2(3H)-onyl-(3)-methyl) dithiophosphate; OMS 958
- PSA 158.02000
- LogP 2.56210
O,O-Dimethyl-S-(5-ethoxy-1,3,4-thiadi-azolinyl-3-methyl)dithiophosphate Chemical Properties
IUPAC Name: 3-(Dimethoxyphosphinothioylsulfanylmethyl)-5-ethoxy-1,3,4-thiadiazol-2-one
Synonyms of O,O-Dimethyl-S-(5-ethoxy-1,3,4-thiadi-azolinyl-3-methyl)dithiophosphate (CAS NO.2669-32-1) : 3-Dimethoxyphosphinothioylthiomethyl-5-ethoxy-1,3,4-thiadiazol-2(3H)-one ; lythidathion ; Phosphorodithioic acid, S-[(5-ethoxy-2-oxo-1,3,4-thiadiazol-3(2H)-yl)methyl] O,O-dimethyl ester ; S-[(5-Ethoxy-2-oxo-1,3,4-thiadiazol-3(2H)-yl)methyl] O,O-dimethyl phosphorodithioate ; S-[(5-Ethoxy-2-oxo-1,3,4-thiadiazol-3(2H)-yl)methyl] O,O-Dimethyl Phosporodithioate
InChI: InChI=1/C7H13N2O4PS3/c1-4-13-6-8-9(7(10)17-6)5-16-14(15,11-2)12-3/h4-5H2,1-3H3
CAS NO:2669-32-1
Molecular Formula:C7H13N2O4PS3
Molecular Weight :316.3579
Molecular Structure :.png)
Index of Refraction: 1.637
Surface Tension: 57.8 dyne/cm
Density: 1.54 g/cm3
Flash Point: 172.8 °C
Enthalpy of Vaporization: 60.81 kJ/mol
Boiling Point: 362.2 °C at 760 mmHg
Vapour Pressure: 1.97E-05 mmHg at 25°C
O,O-Dimethyl-S-(5-ethoxy-1,3,4-thiadi-azolinyl-3-methyl)dithiophosphate Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mammal (species unspecified) | LD50 | unreported | 225mg/kg (225mg/kg) | "Chemistry of Pesticides," Melnikov, N.N., New York, Springer-Verlag New York, Inc., 1971Vol. -, Pg. 372, 1971. | |
| rat | LD50 | oral | 268mg/kg (268mg/kg) | "Pesticide Index," Frear, E.H., ed., State College, PA, College Science Pub., 1969Vol. 4, Pg. 186, 1969. |
O,O-Dimethyl-S-(5-ethoxy-1,3,4-thiadi-azolinyl-3-methyl)dithiophosphate Safety Profile
Poison by ingestion. O,O-Dimethyl-S-(5-ethoxy-1,3,4-thiadi-azolinyl-3-methyl)dithiophosphate (CAS NO.2669-32-1) is a pesticide. When O,O-Dimethyl-S-(5-ethoxy-1,3,4-thiadi-azolinyl-3-methyl)dithiophosphate (CAS NO.2669-32-1) is heated to decomposition, it emits very toxic fumes of NOx, POx, and SOx.
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