Diethyl Malonate Precursor Malonic Acid from Canada
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 — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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