Levobupivacaine Hydrochloride from Japan
Levobupivacaine hydrochloride is the S-enantiomer of bupivacaine, offering reduced cardiotoxicity. Classified under HTS 2924.29.71.00 as an aromatic cyclic amide per additional U.S. note 3. Meets chapter requirements for separate chemically defined stereoisomers.
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%
Import Tips
• Provide chiral HPLC analysis confirming >99% enantiomeric excess
• Include comparative toxicology data vs. racemic bupivacaine
• Declare specific rotation value for optical purity verification