Diethyl L-tartrate from Germany
Diethyl L-tartrate contains a five-membered lactone-like structure in tartaric acid derivatives with oxygen heteroatoms, classified under HTS 2932.20.50 per ester rules. Used as chiral auxiliary in asymmetric synthesis.
Duty Rate — Germany → United States
3.7%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Enantiomeric excess (>99% ee) certification mandatory for research grade
• Light-sensitive; amber glass bottles required for stability
• Avoid 'catalyst' declaration which may trigger different documentation