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| CAS No.: | 13071-79-9 |
|---|---|
| Name: | Terbufos |
| Molecular Structure: | |
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| Formula: | C9H21 O2 P S3 |
| Molecular Weight: | 288.436 |
| Synonyms: | Phosphorodithioicacid, S-[(tert-butylthio)methyl] O,O-diethyl ester (6CI,7CI,8CI); Methanethiol,(tert-butylthio)-, S-ester with O,O-diethyl phosphorodithioate (8CI); AC 92100;Counter; Counter 15G; Cyanater; O,O-Diethyl S-(tert-butylthio)methylphosphorodithioate; O,O-Diethyl S-[[(1,1-dimethylethyl)thio]methyl]phosphorodithioate; S-[(tert-Butylthio)methyl] O,O-diethyl phosphorodithioate;Terbufos; Terbuphos; Terbutifos |
| EINECS: | 235-963-8 |
| Density: | 1.105 |
| Melting Point: | -29 ºC |
| Boiling Point: | 69 ºC (0.01 mmHg) |
| Flash Point: | 88 ºC |
| Solubility: | Insoluble |
| Appearance: | Technical product is a clear, colorless to pale yellow liquid. |
| Hazard Symbols: |
 
|
| Risk Codes: | R27/28;R50/53 |
| Safety: | Deadly poison by ingestion and skin contact. An insecticide. When heated to decomposition it emits very toxic fumes of SOx and POx. See also ESTERS. |
| Transport Information: | UN 2810 |
| PSA: | 110.96000 |
| LogP: | 5.15690 |
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Chemistry
Molecular Formula: C9H21O2PS3
Molar mass: 288.4306 g/mol
EINECS: 202-353-8
Density: 1.154 g/cm3
Flash Point: 132.3 °C
Index of Refraction: 1.531
Boiling Point: 319.6 °C at 760 mmHg
Vapour Pressure: 0.000628 mmHg at 25°C
Melting point: -29°C
Storage temp: Approx 4°C
Water solubility: Insoluble
Appearance: clear and colorless to pale yellow liquid
Product categories: Insecticides;Nematicides Pesticides;Alpha sort;Organophorous Alphabetic;Pesticides & Metabolites Specific;Organophorous Pesticides & Metabolites;Q-ZAlphabetic;European Community: ISO and DIN
Structure of Terbufos (13071-79-9):
XLogP3-AA: 4.5
H-Bond Donor: 0
H-Bond Acceptor: 2
Systematic Name: Tert-butylsulfanylmethylsulfanyl-diethoxy-thioxo-phosphorane
SMILES: S=P(OCC)(SCSC(C)(C)C)OCC
InChI: InChI=1/C9H21O2PS3/c1-6-10-12(13,11-7-2)15-8-14-9(3,4)5/h6-8H2,1-5H3
InChIKey: XLNZEKHULJKQBA-UHFFFAOYAH
Std. InChI: InChI=1S/C9H21O2PS3/c1-6-10-12(13,11-7-2)15-8-14-9(3,4)5/h6-8H2,1-5H3
Std. InChIKey: XLNZEKHULJKQBA-UHFFFAOYSA-N
Uses
Terbufos (13071-79-9) is used as a soil insecticide.
Toxicity Data With Reference
| 1. | orl-rat LD50:1600 µg/kg | MEIEDD Merck Index. 10 (1983),1310. | ||
| 2. | orl-mus LD50:3500 µg/kg | FMCHA2 Farm Chemicals Handbook .(Meister Publishing, 37841 Euclid Ave.,Willoughy, OH.: 44094)1983,C63. | ||
| 3. | orl-dog LD50:4500 µg/kg | FMCHA2 Farm Chemicals Handbook .(Meister Publishing, 37841 Euclid Ave.,Willoughy, OH.: 44094)1983,C63. | ||
| 4. | skn-rbt LD50:1100 µg/kg/24H | FMCHA2 Farm Chemicals Handbook .(Meister Publishing, 37841 Euclid Ave.,Willoughy, OH.: 44094)1983,C63. | ||
| 5. | orl-qal LD50:15 mg/kg | EESADV Ecotoxicology and Environmental Safety. 8 (1984),551. |
Consensus Reports
EPA Genetic Toxicology Program. EPA Extremely Hazardous Substances List.
Safety Profile
Deadly poison by ingestion and skin contact. An insecticide. When heated to decomposition it emits very toxic fumes of SOx and POx. See also ESTERS.
Hazard Codes: T+.gif){kind=small}
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Risk Statements:
27: Very Toxic in contact with skin
28: Very Toxic if swallowed
50: Very Toxic to aquatic organisms
53: May cause long-term adverse effects in the aquatic environment
Safety Statements:
36: Wear suitable protective clothing
37: Wear suitable gloves
45: In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
60: This material and/or its container must be disposed of as hazardous waste
61: Avoid release to the environment. Refer to special instructions safety data sheet
Standards and Recommendations
ACGIH TLV: TWA 0.01 mg/m3 (skin); Not Classifiable as a Human Carcinogen
Specification
Terbufos (13071-79-9) also can be called Counter ; O,O-Diethyl-S-{[(2-methyl-2-propanyl)sulfanyl]methyl}dithiophosphat ; Dithiophosphate de O,O-diéthyle et de S-{[(2-méthyl-2-propanyl)sulfanyl]méthyle} and Phosphorodithioic acid, S-[(tert-butylthio)methyl] O,O-diethyl ester .