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6923-22-4

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Basic Information
CAS No.: 6923-22-4
Name: Monocrotophos
Article Data: 4
Molecular Structure:
Molecular Structure of 6923-22-4 (Monocrotophos)
Formula: C7H14 N O5 P
Molecular Weight: 223.166
Synonyms: Phosphoricacid, dimethyl (1E)-1-methyl-3-(methylamino)-3-oxo-1-propenyl ester (9CI);Phosphoric acid, dimethyl 1-methyl-3-(methylamino)-3-oxo-1-propenyl ester,(E)-;Phosphoric acid, dimethyl ester, ester with3-hydroxy-N-methylcrotonamide, (E)- (8CI);3-Hydroxy-N-methyl-cis-crotonamidedimethyl phosphate;Apadrin;Azodrin;Azodrin 202R;Azodrin 60;C 1414;Corophos;Croton 36;Kadett;Kadett 36;Monicil;Monocil;Monocil 40;Monocos;Monocron;Monocrotophos;Monodhan;Monokrotofos;Monostar;Nuvacron;Nuvacron20;Nuvacron 36SL;Parryfos;SD 9129;Sufos;
EINECS: 230-042-7
Density: 1.195g/cm3
Melting Point: 54-55 ºC
Boiling Point: 125 ºC (0.0005 torr)
Flash Point: -18oC
Solubility: Soluble
Hazard Symbols:
Risk Codes: R24;R26/28;R50/53   
Safety: Poison by ingestion, inhalation, skin contact, intraperitoneal, subcutaneous, and intravenous routes. Mutation data reported. Use may be restricted. When heated to decomposition it emits very toxic NOx and POx.
Transport Information: UN 2783
PSA: 83.67000
LogP: 1.44460
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Chemistry

Product Name: Monocrotophos
The MF of Monocrotophos(6923-22-4) is C7H14NO5P.

                                     
The MW of Monocrotophos(6923-22-4) is 223.16.
Synonyms: (E)-Dimethyl 1-methyl-3-(methylamino)-3-oxo-1-propenyl phosphate;3-(Dimethoxyphosphinyloxy)N-methyl-cis-crotonamide;Azodrin insecticide;Azodrin-71;3-Hydroxy-N-methyl-cis-crotonamide dimethyl phosphate
Product Categories: INSECTICIDE;METI - MZPesticides;AcaricidesPesticides&Metabolites;Alpha sort;H-MAlphabetic;Insecticides;Pesticides&Metabolites;AcaricidesAlphabetic
Mol File: 6923-22-4.mol
EINECS: 230-042-7 
Surface Tension: 36.2 dyne/cm 
Density: 1.195 g/ml 
Flash Point: 144.4 °C 
Enthalpy of Vaporization: 55.63 kJ/mol 
Boiling Point: 315.1 °C at 760 mmHg 
Vapour Pressure: 0.000446 mmHg at 25°C 
mp: 54-55°C
Water Solubility: Soluble
NIST Chemistry Reference: 6923-22-4(NIST)
EPA Substance Registry System: 6923-22-4(EPA Substance)

Uses

The Monocrotophos(6923-22-4) is used as a fast acting insecticide with both systemic and contact action against a wide range of pests on cotton, sugar cane, tobacco, potatoes, peanuts, tomatoes, and ornamentals.

Toxicity Data With Reference

1.   

mmo-sat 500 µg/plate

   NTIS**    National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) No. PB84-138973 .
2.   

mmo-esc 5 µL/plate

   MUREAV    Mutation Research. 28 (1975),405.
3.   

orl-rat LD50:8 mg/kg

   FMCHA2    Farm Chemicals Handbook .(Meister Publishing,Willoughy, OH.: )1983,C161.
4.   

ihl-rat LC50:63 mg/m3/4H

   EGESAQ    Egeszsegtudomany. 24 (1980),173.
5.   

skn-rat LD50:112 mg/kg

   WRPCA2    World Review of Pest Control. 9 (1970),119.
6.   

ipr-rat LDLo:20 mg/kg

   BECTA6    Bulletin of Environmental Contamination and Toxicology. 19 (1978),47.
7.   

scu-rat LD50:6964 µg/kg

   BJPCBM    British Journal of Pharmacology. 40 (1970),124.
8.   

ivn-rat LD50:9200 µg/kg

   NTIS**    National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) No. PB277-077 .
9.   

orl-mus LD50:15 mg/kg

   ARSIM*    Agricultural Research Service, USDA Information Memorandum. 20 (1966),21.
10.   

ipr-mus LD50:3800 µ

Consensus Reports

EPA Genetic Toxicology Program. EPA Extremely Hazardous Substances List.

Safety Profile

Poison by ingestion, inhalation, skin contact, intraperitoneal, subcutaneous, and intravenous routes. Mutation data reported. Use may be restricted. When heated to decomposition it emits very toxic NOx and POx.
Safety information of Monocrotophos(6923-22-4):
Hazard Codes: T+;N,Xn,F
Risk Statements: 24-26/28-50/53-68-67-65-38-11-36-20/21/22
R24:Toxic in contact with skin ;
R26/28:Very Toxic by inhalation and if swallowed ;
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment ;
R68:Possible risk of irreversible effects ;
R67:Vapors may cause drowsiness and dizziness ;
R38:Irritating to the eyes ;
R11:Highly Flammable ;
R36:Irritating to the eyes ;
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed ;
Safety Statements: 1/2-36/37-45-60-61-62-26
S1/2:Keep locked up and out of the reach of children ;
S36/37:Wear suitable protective clothing and gloves ;
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) ;
S60:This material and/or its container must be disposed of as hazardous waste ;
S61:Avoid release to the environment. Refer to special instructions safety data sheet ;
S62:If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label ;
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice ;
RIDADR: UN 2783
RTECS: TC4375000
HazardClass: 6.1(a)
PackingGroup: II
Hazardous Substances Data: 6923-22-4(Hazardous Substances Data)

Standards and Recommendations

OSHA PEL: TWA 0.25 mg/m3
ACGIH TLV: TWA 0.05 mg/m3; (skin); Not Classifiable as a Human Carcinogen