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Dimethyl dithiophosphoric acid
Dimethyl
dithiophosphoric acid
is the
organophosphorus compound
with the
formula
2
PS
2
H. It is the
processor
for
production
of the
organothiophosphate
insecticide
Malathion
. Although
samples
can
appear
dark
,
the compound
is a
colorless
, distillable
liquid
.
It is prepared by
treating
phosphorus pentasulfide
with methanol: