CAS No.5598-13-0,Chlorpyrifos-methyl Suppliers,MSDS download

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Basic Information

Molecular Structure:
CAS No.:	5598-13-0
Name:	Chlorpyrifos-methyl
Article Data:	7

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

Synthetic route

: sodium salt of 3,5,6-trichloropyridine-2-ol

: 71348-06-6, 13289-13-9
ethyl methyl chlorothiophosphate

: 5598-13-0
O,O-dimethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate

Conditions

Conditions	Yield
In ethanol at 50℃; for 5h; Temperature;	96.2%

: 2524-03-0
dimethyl chlorothiophosphate

: sodium salt of 3,5,6-trichloropyridine-2-ol

: 5598-13-0
O,O-dimethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate

Conditions

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

Conditions	Yield
With water; sodium hydroxide In acetonitrile at 25℃; for 6h; pH=9.14; Equilibrium constant; Solvent;

: 5598-13-0
O,O-dimethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate

: 5598-52-7
Fospirate

Conditions

Conditions	Yield
With monoperoxyphthalic acid; magnesium salt In dichloromethane for 12h; Heating;	44%

: 5598-13-0
O,O-dimethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate

: 107-96-0
3-mercaptopropionic acid

: 3-[3,5-Dichloro-6-(dimethoxy-thiophosphoryloxy)-pyridin-2-ylsulfanyl]-propionic acid

Conditions

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

A: thiophosphoric acid O-methyl ester O'-(3,5,6-trichloro-pyridin-2-yl) ester

B: O-(3,5,6-trichloropyridin-2-yl) O,O-dihydrogenphosphorothioate

Conditions

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

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

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;

: 5598-13-0
O,O-dimethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate

: 1111-99-5
monomethyl thiophosphate

Conditions

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

Conditions	Yield
With air In acetonitrile for 3.91667h; Kinetics; Reagent/catalyst; Solvent; UV-irradiation;

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Chemistry

CHLORPYRIFOS-METHYL (5598-13-0) has some details as followings.
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: 44.5–45.5^oC. Sltly sol in H₂O; very sol in org solvs.
Molecular Structure:

Uses

CHLORPYRIFOS-METHYL (5598-13-0) is a broad-spectrum insecticide.It is primarily used for the prevention and control of grain pests during storage.

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

Moderately toxic by ingestion, intraperitoneal, and skin contact routes. A skin irritant. Experimental reproductive effects. When heated to decomposition CHLORPYRIFOS-METHYL (5598-13-0)emits very toxic fumes of Cl⁻, NO_x, PO_x, and SO_x. A pesticide.
CHLORPYRIFOS-METHYL (5598-13-0) has some safety.
Risk Codes:R43;R50/53
liansport Information:UN 3077
Hazard Symbols:

Xi;N