INTRODUCTION
Tetrachlorvinphos (popularly known as TCVP) is an agrochemical belonging to class of organophosphates. It is a non-systemic insecticide and acaracide having widespread uses in crop protection, public health, and animal hygiene.
Manufacture
1,2,4-Trichlorobenzene is reacted with Dichloroacetyl chloride. The resultant intermediate undergoes addition reaction with trimethyl phosphite to form TCVP.
| Synonym | TCVP 2-Chloro-1-(2,4,5-trichloro-phenyl)vinyl dimethyl phosphate |
| CAS no. | 22248-79-9 |
| EINECS no. | 244-865-4 |
| Molecular formula | C10H9Cl4O4P |
| Molecular weight | 365.96 |
| Structure |  |
| Applications |
|---|
| It controls lepidopterous and dipterous larvae in fruits |
| Commonly used against nuisance flies in cattlesheds and ectoparasites |
| Commonly used against nuisance flies in cattlesheds and ectoparasites |
| It is also used as an ingredient in feeds for horses and poultry |
| It controls public health pests in recreational areas |
SPECIFICATIONS
| Test | Unit | Specifications |
|---|---|---|
| Appearance | – | White to faint yellow free flowing powder |
| 2-Chloro-1-(2,4,5-triphenyl)vinyl dimethyl phosphate (Z isomer) | % w/w | Min 98.0% |
| 2-Chloro-1-(2,4,5-triphenyl)vinyl dimethyl phosphate (E isomer) | % w/w | Max 0.3% |
| 2,2’,4,5’-Tetrachloroacetophenone | % w/w | Max 0.3% |
| Tris(2,4,5-trichlorophenyl)methane | % w/w | Max 0.5% |
| Other impurities | % | Max 1.1% |
| Single unidentified impurity | % | Max 0.1% |
STORAGE
Stored at ambient temperature
PACKING
75 kg UN-approved fibre drum
REACH Status
Not registered
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