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O,O-Diethyl S-(2-ethylthioethyl) phosphorodithioate from Japan

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).

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

Import Tips

Obtain EPA registration and comply with FIFRA labeling requirements before import

Provide detailed chemical purity analysis and safety data sheets (SDS) for customs clearance

Avoid misclassification as a simple organophosphorus compound in 2931; confirm phosphorodithioate structure