L-Isoleucine Pharmaceutical Grade from Japan
L-Isoleucine pharmaceutical grade is a branched-chain amino acid for parenteral nutrition and muscle recovery supplements. HTS 2922.49.49 applies to this pure enantiomer with single oxygen function. Meets EP/USP monographs for IV infusion use.
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
• Pyrogen-free certification mandatory for pharma grade; include endotoxin test results
• Ship under temperature control (2-8°C); declare pharma end-use for FDA import alert screening