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Diethyl Malonate Precursor Malonic Acid from Japan

Malonic acid specifically manufactured as precursor for diethyl malonate production in pharmaceutical intermediates. Pure compound classification under HTS 2917.19.35.00 confirmed by spectroscopic analysis showing no ester impurities.

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

Provide downstream user letters confirming chemical intermediate status for potential duty relief

Ensure batch consistency with HPLC chromatograms showing single peak at malonic acid RT

Monitor decarboxylation risk during transport; specify temperature-controlled shipping