O,O-Dimethyl S-Methyl Phosphorothioate
This is a specific organo-phosphorus compound used primarily as an intermediate in the synthesis of organophosphate pesticides. It contains a phosphorus atom bonded to one methyl group and no other carbon atoms, fitting precisely within HTS 2930.90.43.20 as an organo-sulfur pesticide compound. The thioate structure qualifies it under the organo-sulfur compounds heading.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified as other organo-inorganic compounds without sulfur linkage
If the sulfur component is not recognized as defining the organo-sulfur nature, it may shift to organo-inorganic phosphorus compounds.
If for other organo-sulfur pesticide compounds not matching the specific phosphorus structure
Broader residual category for organo-sulfur pesticides if the exact phosphorus-methyl restriction is not met.
If imported as a formulated pesticide product rather than pure compound
Formulated insecticides containing this compound as active ingredient fall under Chapter 38 for pesticides.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide detailed chemical composition certificates and purity analysis to verify the single methyl group on phosphorus for classification compliance
• Obtain EPA registration documents if intended for pesticide use, as this affects import permits and labeling requirements
• Avoid common pitfalls like mislabeling as a general solvent; ensure packaging indicates technical grade for industrial use
Related Products under HTS 2930.90.43.20
O-Ethyl S-Methyl Phosphorodithioate
A phosphorus-based organo-sulfur compound serving as a key building block for certain insecticides. It features a phosphorus atom bonded solely to an ethyl group with dithioate sulfur linkages, classified under HTS 2930.90.43.20 for its pesticide applications. Meets chapter notes for separate chemically defined organic compounds with limited carbon attachment.
Isopropyl Methylphosphonothioic Acid
An acid-form organo-phosphorus thioate used in specialized pesticide intermediates. Features phosphorus bonded to isopropyl group with thioic sulfur, fitting HTS 2930.90.43.20 criteria for no other carbons. Qualifies as separate chemically defined compound under chapter notes.
Dimethoate Technical Grade
Dimethoate is an organophosphate insecticide in technical purity containing the specified phosphorus-methyl structure. Though a full molecule, its core phosphorus component with one methyl group qualifies it under HTS 2930.90.43.20 as a pesticide organo-sulfur compound. Used in agriculture for controlling aphids and mites.
O,O-Diethyl S-Methyl Phosphorothiolate
This compound is a phosphorothiolate derivative used in pesticide synthesis, with phosphorus bonded to an ethyl group and sulfur functionalities. Classified in HTS 2930.90.43.20 due to its organo-sulfur pesticide nature and strict phosphorus alkyl limitation. Adheres to chapter note for chemically defined organic compounds.