Dibenzofuran (Diphenylene Oxide) from Japan
Dibenzofuran is a tricyclic aromatic heterocyclic compound featuring oxygen as the only hetero-atom, specifically named in HTS 2932.99.32.00. It appears as white crystals used in synthesis and as a reference pollutant standard.
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
• Include NMR or GC-MS spectra in documentation to confirm dibenzofuran structure and 99%+ purity
• Classify as hazardous material (UN 3077) due to environmental toxicity; prepare proper shipping papers
• Check TSCA inventory listing and obtain PMN if synthetic variant not pre-registered