4-Phenylmorpholine from Japan
4-Phenylmorpholine is a six-membered heterocyclic ether containing a nitrogen atom and phenyl substituent, making it aromatic or modified aromatic. It is explicitly listed under HTS 2934.99.05.00 within 'other heterocyclic compounds.' Commonly used as a catalyst in organic synthesis and polymer production.
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
• Verify morpholine ring integrity via HPLC purity certificate to distinguish from simple amine derivatives
• Include end-use statement specifying 'chemical intermediate only' to avoid scrutiny as consumer chemical
• Package with anti-dusting agents only if necessary for safety, per chapter note (g), to maintain classification