Diethyl L-Tartrate from Japan

Diethyl L-tartrate is the ethyl ester of L-tartaric acid, but pure esters derive classification from the parent acid under chapter note 5(B), placing it with tartaric acid in HTS 2918.12.00.00. Used as a chiral auxiliary in asymmetric synthesis.

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%

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Import Tips

• ,TSCA notification required for new uses; provide synthesis route if queried

• Package under nitrogen to prevent hydrolysis during ocean transit