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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not specifically designated for pesticide use
Other organo-sulfur compounds excluding those explicitly for pesticides would use this earlier subheading.
If for sulfonated or halogenated derivatives without pesticide intent
If derivatized further with halogens or sulfonation dominating, it may classify under earlier hydrocarbon derivatives.
If when imported as a chemical mixture or preparation
Mixtures not qualifying as pure compounds under chapter notes fall into Chapter 38 chemical preparations.
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
• Include NMR or mass spectrometry data in documentation to confirm the phosphorus-ethyl bonding and absence of additional carbons
• Comply with TSCA pre-manufacture notification if used in US chemical production beyond pesticide scope
• Watch for reclassification risks if stabilizer additions render it suitable for non-general use per chapter note (g)
Related Products under HTS 2930.90.43.20
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.
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.