2,5-Diphenyloxazole (PPO) from Japan
2,5-Diphenyloxazole is a fluorescent organic compound classified under HTS 2934.99.08.00 as an aromatic heterocyclic compound containing an oxazole ring with phenyl substituents. It is primarily used as a primary scintillator in liquid scintillation cocktails for detecting beta radiation in radiochemical analysis.
Duty Rate — Japan → United States
15%
Rate breakdown
9903.04.628.5%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
• Provide Safety Data Sheet (SDS) and Certificate of Analysis confirming 99%+ purity as required for research chemicals
• Include end-use statement specifying scintillation/radiochemical applications to avoid misclassification as general dye
• Ensure proper UN-approved packaging for flammable solids (UN3345) with hazard class 4.1 labeling