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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing arsenic or other nonmetal directly linked to carbon
Chapter notes specify organo-inorganic compounds with nonmetals like arsenic go to 2931.
If imported as goods specified in note 1 to chapter 38
Certain pesticide formulations are excluded from Chapter 29 and classified by use in 3808.
If classified primarily as alcohol derivative rather than thiophosphate
Chapter note on esters directs classification to the later-occurring heading (2909 before 2920).
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Import Tips & Compliance
• EPA pesticide registration mandatory; unregistered imports subject to seizure
• Include LC50 toxicity data and acute reference dose information in import documentation
• Declare as technical grade material, not formulation, to avoid Chapter 38 classification
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-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.
Disulfoton 75% Soluble Liquid Concentrate
Although a formulation, the active thiophosphoric ester ingredient classifies the product under HTS 2920.19.5000 when imported as technical material. Diethyl thiophosphate structure meets 'phosphorodithioates - other' criteria.