L-Arginine Free Base from Japan
L-Arginine Free Base is used in nitric oxide supplements and wound healing formulations. Falls under HTS 2922.49.80.00 for basic amino acids with guanidino oxygen function limited to carboxyl.
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
• Test for arginine-specific impurities; ensure cGMP for NO-booster claims; declare as GRAS substance