Acridine Orange Base from Japan
Acridine orange base is a dialkylamino-substituted acridine used as fluorescent dye precursor, classified under HTS 2933.99.0500 based on acridine core. The free base form precedes any hydrochloride salt classification.
Duty Rate — Japan → United States
15%
Rate breakdown
9903.04.6215%Pharmaceuticals: patented pharma from JP/EU/KR/CH/LI — 15% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Free base classified with acridine; salts follow base classification per Chapter notes
• Light-sensitive; amber packaging required to prevent degradation
• Avoid Chapter 32 classification by documenting use as chemical intermediate