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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If sulfur functionality dominates over phosphorus
Organo-sulfur compounds take precedence if not specifically thiophosphoric esters.
If marketed as di-ammonium phosphate fertilizer component
Fertilizer formulations classified by use in Chapter 31, not chemical structure.
If technical mixtures with >2 impurities
Mixtures not 'chemically defined' per Chapter note (a) go to chemical preparations.
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Import Tips & Compliance
• Declare minimum purity percentage (typically 90%+) for technical grade classification
• Include groundwater contamination risk assessment for EPA import review
• Use UN-approved packaging for highly toxic organophosphates
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.
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.