Methamidophos Technical (O,S-Dimethyl phosphoramidothioate)
Highly toxic organophosphate insecticide Methamidophos, a phosphorodithioate derivative. HTS 2920.19.5000 as 'other' thiophosphoric esters meeting chemically defined organic compound requirements.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified as thioic S-acid ester
Alternative sulfur classification if phosphorus functionality secondary.
If inorganic phosphorous acid salts
Inorganic classification if organic component insufficient.
If other plant growth regulator formulations
Use-based classification supersedes chemical structure for mixtures.
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Import Tips & Compliance
• Special handling required due to WHO Class Ia acute toxicity
• Import permits needed due to international bans/restrictions
• Full degradation pathway data required for environmental clearance
Related Products under HTS 2920.19.50.00
O,O-Diethyl S-(2-ethylthioethyl) phosphorodithioate
A thiophosphoric ester commonly known as Disulfoton, used as a systemic insecticide in agriculture. It falls under HTS 2920.19.5000 as a phosphorodithioate ester of other inorganic acids of nonmetals, not classified as specific named compounds. This chemical is a separate chemically defined organic compound per Chapter 29 note (a).
O,O-Dimethyl S-(N-methylcarbamoylmethyl) phosphorodithioate
Known as Dimethoate, this is a systemic organophosphate insecticide and acaricide used on various crops. Classified under HTS 2920.19.5000 as 'other' thiophosphoric esters (phosphorodithioates). Meets Chapter 29 requirements for chemically defined organic compounds with P-S linkages.
O,O-Diethyl phosphorodithioic acid S-(p-chlorophenyl) ester
Commonly called Dicapthon, this chlorinated thiophosphoric ester serves as an insecticide. Falls under HTS 2920.19.5000 as 'other' halogenated phosphorodithioates per the heading description. Qualifies as a chemically defined compound under Chapter 29 scope.
Malathion USP Grade (S-[1,2-bis(ethoxycarbonyl)ethyl] O,O-dimethyl phosphorodithioate)
Pharmaceutical grade Malathion used in medical and public health applications like lice treatment. Classified as HTS 2920.19.5000 'other' phosphorodithioates, meeting USP purity standards as a separate chemically defined compound.
Phorate Technical Grade (O,O-Diethyl S-[(ethylthio)methyl] phosphorodithioate)
Technical grade Phorate, a systemic insecticide nematicide used in soil treatment. HTS 2920.19.5000 classification as 'other' thiophosphoric esters (phosphorodithioates) per chemical structure and Chapter 29 notes.
Terbufos (O,O-Diethyl S-[[(1,1-dimethylethyl)thio]methyl] phosphorodithioate)
Broad-spectrum insecticide Terbufos used for corn rootworm control. Falls under 'other' phosphorodithioates in HTS 2920.19.5000 as a chemically defined thiophosphoric ester.