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| CAS No.: | 919-86-8 |
|---|---|
| Name: | DEMETON-S-METHYL |
| Article Data: | 40 |
| Molecular Structure: | |
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|
|
| Formula: | C6H15 O3 P S2 |
| Molecular Weight: | 230.289 |
| Synonyms: | Phosphorothioicacid, S-[2-(ethylthio)ethyl] O,O-di-Me ester (6CI); Demeton-S-methyl; Metaisoseptox;Metaisosystox; Metasystox 55; Metasystox I; Metasystox J; Methyl demetonthioester; Methyl isosystox; Methylthionodemeton; O,O-DimethylS-2-(ethylthio)ethyl phosphorothioate; S-[2-(Ethylthio)ethyl] O,O-dimethylphosphorothioate; S-[2-(Ethylthio)ethyl] O,O-dimethyl thiophosphate; Thiometonoxon |
| Density: | 1.197g/cm3 |
| Melting Point: | <25℃ |
| Boiling Point: | 287.4oC at 760 mmHg |
| Flash Point: | 2oC |
| Solubility: | 22,000 mg-1 (20 °C) |
| Hazard Symbols: | T,N,Xn,F |
| Risk Codes: | 24/25-51/53-36-20/21/22-11 |
| Safety: | Poison by ingestion, inhalation, skin contact, intraperitoneal, and intravenous routes. Mutation data reported. An insecticide. When heated to decomposition it emits very toxic fumes of POx and SOx. See also DEMETON-O + DEMETON-S and DEMETON; DEMETON-O-METHYL; DEMETON-O-METHYL SULFOXIDE; DEMETON-S; DEMETON-S-METHYL-SULPHONE. |
| PSA: | 95.94000 |
| LogP: | 2.87360 |
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Chemistry
Product Name: Demeton-S-methyl (CAS NO.919-86-8)
Molecular Formula: C6H15O3PS2
Molecular Weight: g/mol
Mol File: 919-86-8.mol
Einecs: 213-052-6
Boiling point: 287.4 °C at 760 mmHg
Storage Temperature: -18°C
Flash Point: 127.6 °C
Density: 1.197 g/cm3
Water Solubility: 0.33 g/100 ml (20 °C)
Surface Tension: 39.9 dyne/cm
Enthalpy of Vaporization: 50.55 kJ/mol
Vapour Pressure: 0.00429 mmHg at 25°C
XLogP3-AA: 1
H-Bond Donor: 0
H-Bond Acceptor: 3
Structure Descriptors of Demeton-S-methyl (CAS NO.919-86-8):
IUPAC Name: 1-dimethoxyphosphorylsulfanyl-2-ethylsulfanylethane
Canonical SMILES: CCSCCSP(=O)(OC)OC
InChI: InChI=1S/C6H15O3PS2/c1-4-11-5-6-12-10(7,8-2)9-3/h4-6H2,1-3H3
InChIKey: WEBQKRLKWNIYKK-UHFFFAOYSA-N
Uses
Demeton-S-methyl (CAS NO.919-86-8) is used as an acaricide and insecticide; more specifically it is an organothiophosphate acaricide and an aliphatic organothiophosphate insecticide, respectively.
Toxicity Data With Reference
| 1. | mmo-sat 5 µL/plate | MUREAV Mutation Research. 28 (1975),405. | ||
| 2. | sln-dmg-orl 80 ppm | MUREAV Mutation Research. 28 (1975),405. | ||
| 3. | orl-rat LD50:30 mg/kg | FMCHA2 Farm Chemicals Handbook .(Meister Publishing,Willoughy, OH.: )1991,C197. | ||
| 4. | ihl-rat LC50:500 mg/m3/4H | 85DPAN Wirksubstanzen der Pflanzenschutz und Schadlingsbekampfungsmittel Werner Perkow,Berlin, Germany.: Verlag Paul Parey,1971/76. | ||
| 5. | skn-rat LD50:85 mg/kg | PHJOAV Pharmaceutical Journal. 185 (1960),361. | ||
| 6. | ipr-rat LD50:7500 µg/kg | TXAPA9 Toxicology and Applied Pharmacology. 4 (1962),621. | ||
| 7. | ivn-rat LDLo:54 mg/kg | BCPCA6 Biochemical Pharmacology. 6 (1961),244. | ||
| 8. | orl-gpg LD50:110 mg/kg | TXAPA9 Toxicology and Applied Pharmacology. 4 (1962),621. | ||
| 9. | ipr-gpg LD50:12,500 µg/kg | TXAPA9 Toxicology and Applied Pharmacology. 4 (1962),621. |
Consensus Reports
Reported in EPA TSCA Inventory. EPA Extremely Hazardous Substances List.
Safety Profile
Poison by ingestion, inhalation, skin contact, intraperitoneal, and intravenous routes. Mutation data reported. An insecticide. When heated to decomposition it emits very toxic fumes of POx and SOx. See also DEMETON-O + DEMETON-S and DEMETON; DEMETON-O-METHYL; DEMETON-O-METHYL SULFOXIDE; DEMETON-S; DEMETON-S-METHYL-SULPHONE.
Safety Information of Demeton-S-methyl (CAS NO.919-86-8):
Hazard Codes: T
,N
,Xn
,F
Risk Statements: 24/25-51/53-36-20/21/22-11
11: Highly Flammable
20: Harmful by inhalation
21: Harmful in contact with skin
22: Harmful if swallowed
24: Toxic in contact with skin
25: Toxic if swallowed
36: Irritating to the eyes
51: Toxic to aquatic organisms
53: May cause long-term adverse effects in the aquatic environment
Safety Statements: 28-36/37-45-61-26
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
28: After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer)
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)
61: Avoid release to the environment. Refer to special instructions safety data sheet
Standards and Recommendations
ACGIH TLV: TWA 0.05 ppm (skin)(sensitizer); Not Classifiable as a Human Carcinogen
Specification
Demeton-S-methyl ,its CAS NO. is 919-86-8,the synonyms is 2-Ethylthioethyl dimethyl phosphorothioate ; Demeton-S-metile ; Demetox ; Dimethyl S-(2-eththioethyl)thiophosphate ; EINECS 213-052-6 ; Ethanethiol, 2-(ethylthio)-, S-ester with O,O-dimethyl Metaisosystox ; Methyl demeton thioester ; Methyl isosystox ; Methyl thionodemeton ; Methyl-mercaptofos teolovy (USSR) ; Methylmercaptofostiol (USSR) ; Mifatox ; O,O-Dimethyl 2-ethylmercaptoethyl thiophosphate, thiolo isomer ; O,O-Dimethyl S-(2-(ethylthio)ethyl)phosphorothioate ; O,O-Dimethyl-S-(2-aethylthio-aethyl)-monothiophosphat ; Phosphorothioic acid, O,O-dimethyl S-(2-(ethylthio)ethyl) ester ; S-(2-(Ethylthio)ethyl) O,O-dimethyl phosphorothioate ; S-(2-(Ethylthio)ethyl) O,O-dimethyl thiophosphate ; Thiometon oxon ; Thiophosphate de O,O-dimethyle et de S-2-ethylthio-ethyle .