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56-72-4

Name Coumaphos
CAS 56-72-4
EINECS(EC#) 200-285-3
Molecular Formula C14H16ClO5PS
MDL Number MFCD00041820
Molecular Weight 362.77
MOL File 56-72-4.mol

Chemical Properties

Description
Technical coumaphos is a tan crystalline solid with a slight sulphur odour. It is insoluble in water; slightly soluble in acetone, chloroform, and ethanol; and soluble in organic solvents. Coumaphos when heated undergoes decomposition and releases very toxic fumes of sulphur oxides, phosphorous oxides, and chlorides. It is used for the control of a wide variety of livestock insects, including cattle grubs, screwworms, lice, scabies, flies, and ticks. It is used against ectoparasites, which are insects that live on the outside of host animals such as sheep, goats, horses, pigs, and poultry. Coumaphos is incompatible with alkalis, strong oxidising agents, pyrethroids, and piperonyl butoxide. The U.S. EPA has grouped coumaphos as RUP.
Appearance Coumaphos is a white to brownish crystalline solid with a slight sulfurous odor
Melting point  95-97oC
Boiling point  449.9±55.0 °C(Predicted)
density  1.4740
vapor pressure  1.3 x 10-5 Pa (20 °C)
Fp  100 °C
storage temp.  APPROX 4°C
solubility  DMSO: Slightly Soluble,Methanol: Slightly Soluble
form  solid
Water Solubility  1.5 mg l-1 (20 °C)
Stability: Stable. Combustible. Incompatible with alkalies, strong oxidising agents.
Merck  13,2584
BRN  327083
CAS DataBase Reference 56-72-4(CAS DataBase Reference)
NIST Chemistry Reference Coumaphos(56-72-4)
EPA Substance Registry System 56-72-4(EPA Substance)

Safety Data

Hazard Codes  T+,N,Xn,F
Risk Statements 
R21:Harmful in contact with skin.
R28:Very Toxic if swallowed.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R36:Irritating to the eyes.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R11:Highly Flammable.
Safety Statements 
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
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 .
S36:Wear suitable protective clothing .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S16:Keep away from sources of ignition-No smoking .
RIDADR  2783
WGK Germany  3
RTECS  GN6300000
HazardClass  6.1(a)
PackingGroup  II
Safety Profile
Poison by ingestion, sktn contact, inhalation, and intraperitoneal routes. Mutation data reported. When heated to decomposition, it emits very toxic fumes of SOx, PO,, and Cl-. See also COUMARIN.
Hazardous Substances Data 56-72-4(Hazardous Substances Data)
Toxicity
LD50 in female, male rats (mg/kg): 16, 41 orally (Gaines)

Hazard Information

Material Safety Data Sheet(MSDS)

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