Dimethyl Tartrate from Canada
Dimethyl tartrate serves as an intermediate in pharmaceutical synthesis and polymer production. Under HTS 2918.13.5000 as 'other' tartaric acid esters, it adheres to Chapter 29 rules for carboxylic acids with alcohol function. Its simple ester structure avoids reclassification.
Duty Rate — Canada → United States
14.4%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Supply synthesis pathway docs to prove ester identity; store/segregate from acids to prevent hydrolysis; check EU REACH for origin compliance