Dimethyl Phosphite Reagent Grade from Japan
Reagent-grade dimethyl phosphite (ACS spec) for laboratory use is classified as a phosphite ester in HTS 2920.21.00.00 under chapter note (a). Ideal for R&D in phosphonate chemistry.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include lot-specific purity certs; small qty exempt from some hazmat but label anyway; DEA watch if downstream narcotics