2932.20.50/Diethyl L-tartrate/China

Diethyl L-tartrate from China

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 — China → 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
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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

Diethyl L-tartrate from China — Import Duty Rate | HTS 2932.20.50