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| CAS No.: | 5598-13-0 |
|---|---|
| Name: | Chlorpyrifos-methyl |
| Molecular Structure: | |
|
|
|
| Formula: | C7H7Cl3NO3PS |
| Molecular Weight: | 322.536 |
| Synonyms: | Phosphorothioicacid, O,O-dimethyl O-(3,5,6-trichloro-2-pyridyl) ester (7CI,8CI);ChlorpyrifosM;Chlorpyrifos-methyl;Chlorpyriphos-methyl;Cyfen;Dowco 214;Dursban ME;Dursban methyl;ENT 27520;M 3196;Methyl Dursban;Methyl chlorpyrifos;Noltran;O,O-Dimethyl O-(3,5,6-trichloro-2-pyridyl) phosphorothioate;O,O-Dimethyl O-(3,5,6-trichloro-2-pyridyl) thiophosphate;O-(3,5,6-Trichloro-2-pyridinyl) O,O-dimethyl phosphorothioate;OMS 1155;Reldan; |
| EINECS: | 227-011-5 |
| Density: | 1.582 g/cm3 |
| Melting Point: | 45.5-46.5°C |
| Boiling Point: | 347.3 °C at 760 mmHg |
| Flash Point: | 163.8 °C |
| Solubility: | 4mg/L(25 oC) |
| Appearance: | Colorless crystals |
| Hazard Symbols: |
 Xi, N
|
| Risk Codes: | 43-50/53 |
| Safety: | 36/37-60-61 |
| Transport Information: | UN 3077 |
| PSA: | 82.48000 |
| LogP: | 4.58850 |
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- 71348-06-6, 13289-13-9
ethyl methyl chlorothiophosphate
- 5598-13-0
O,O-dimethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate
| Conditions | Yield |
|---|---|
| In ethanol at 50℃; for 5h; Temperature; | 96.2% |
- 2524-03-0
dimethyl chlorothiophosphate
- 5598-13-0
O,O-dimethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate
| Conditions | Yield |
|---|---|
| With dmap; N-benzyl-N,N,N-triethylammonium chloride; sodium dodecyl sulfate; potassium carbonate In water at 50℃; for 2.5h; pH=9.5 - 10; | 93.4% |
- 6515-38-4
3,5,6-trichloropyridin-2 ol
- 1112-38-5
dimethylthiophosphoric acid
- 5598-13-0
O,O-dimethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate
| Conditions | Yield |
|---|---|
| With water; sodium hydroxide In acetonitrile at 25℃; for 6h; pH=9.14; Equilibrium constant; Solvent; |
| Conditions | Yield |
|---|---|
| With monoperoxyphthalic acid; magnesium salt In dichloromethane for 12h; Heating; | 44% |
| Conditions | Yield |
|---|---|
| With potassium hydroxide In ethanol for 1h; Heating; | 3.5% |
- 5598-13-0
O,O-dimethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate
| Conditions | Yield |
|---|---|
| CuCl2*2H2O In methanol; water pH=3.5 - 7.0; Kinetics; Further Variations:; Catalysts; Hydrolysis; |
- 5598-13-0
O,O-dimethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate
- 6515-38-4
3,5,6-trichloropyridin-2 ol
| Conditions | Yield |
|---|---|
| With sodium phosphate buffer; hydrogen sulfide; sodium chloride In methanol at 25℃; pH=5.9; Kinetics; Further Variations:; pH-values; var. hydrogen sulfide concentration; | |
| With C54H36N6NiO10S2 In aq. phosphate buffer at 30℃; for 0.833333h; |
- 5598-13-0
O,O-dimethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate
A
- 6515-38-4
3,5,6-trichloropyridin-2 ol
B
- 1112-38-5
dimethylthiophosphoric acid
| Conditions | Yield |
|---|---|
| With bacterial phosphotriesterase wild-type OpdA In methanol at 37℃; pH=8.5; Enzyme kinetics; | |
| With water; sodium hydroxide In acetonitrile at 25℃; for 6h; Kinetics; Mechanism; Equilibrium constant; Solvent; Concentration; Reagent/catalyst; pH-value; |
| Conditions | Yield |
|---|---|
| With 4-methyl-morpholine In water at 45℃; for 24h; pH=10; |
- 5598-13-0
O,O-dimethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate
A
- 6515-38-4
3,5,6-trichloropyridin-2 ol
B
- 5598-52-7
Fospirate
C
- 813-78-5
dimethylphosphoric acid
D
- 1112-38-5
dimethylthiophosphoric acid
| Conditions | Yield |
|---|---|
| With air In acetonitrile for 3.91667h; Kinetics; Reagent/catalyst; Solvent; UV-irradiation; |
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Chemistry
Molecular Formula:C7H7Cl3NO3PS
Molecular Weight:322.53
EINECS:227-011-5
Density:1.582g/cm3
Melting Point:45.5-46.5 oC
Boiling Point:347.3°Cat760mmHg
Flash Point:163.8°C
liansport Information:UN 3077
Properties:A solid. Mp: 44.5–45.5oC. Sltly sol in H2O; very sol in org solvs.
Molecular Structure:
Uses
Production
The following is CHLORPYRIFOS-METHYL (5598-13-0) 's production methods.
1.Pentachl or opyridine catalytic synthesis of pyridine chloride are Pentachl or opyridine.
2.2,3,5,6- tetrachloro-pyride Pentachl or opyridine reacted with zinc powder and ammonium chloride tetrachloro pyridine.
3.3,5,6-trichloro-2-Synthesis of tetrachoro-ol KOH reacted pyridine and 3,5,6-trichloro-2--ol.
4.Synthesis of 3,5,6 Chlorpyrifos-methyl-trichloro-2-pyridine alcohol,and 0,0-dimethyl sulfide phosphorus chloride,reacted chlorphrifos-methyl.
Toxicity Data With Reference
| 1. | skn-rbt 500 mg/24H MLD | TXAPA9 Toxicology and Applied Pharmacology. 21 (1972),369. | ||
| 2. | orl-rat LD50:1828 mg/kg | HOEKAN Hokkaidoritsu Eisei Kenkyushoho. 23 (1973),57. | ||
| 3. | skn-rat LD50:3713 mg/kg | YKYUA6 Yakkyoku. Pharmacy. 35 (1984),1315. | ||
| 4. | orl-mus LD50:2032 mg/kg | HOEKAN Hokkaidoritsu Eisei Kenkyushoho. 23 (1973),57. | ||
| 5. | ipr-mus LD50:2325 mg/kg | TXAPA9 Toxicology and Applied Pharmacology. 65 (1982),144. | ||
| 6. | scu-mus LD50:23,800 mg/kg | YKYUA6 Yakkyoku. Pharmacy. 30 (1979),409. | ||
| 7. | orl-rbt LD50:2000 mg/kg | BESAAT Bulletin of the Entomological Society of America. 15 (1969),123. |
Safety Profile
CHLORPYRIFOS-METHYL (5598-13-0) has some safety.
Risk Codes:R43;R50/53
liansport Information:UN 3077
Hazard Symbols:
Xi;N