Dibenzofuran-99% ACS Reagent Grade
ACS-grade dibenzofuran (>99% purity) for organic synthesis and as PAH analysis standard. Falls under HTS 2932.99.32.00 as specifically named aromatic oxygen heterocycle.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If technical grade with >20% stabilizers/anti-caking agents
Additives exceeding Chapter 29 note (f) limits shift to mixtures.
If classified by cyclic hydrocarbon structure ignoring heterocycle
Oxygen hetero-atom defines 2932 classification over hydrocarbon headings.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide lot analysis showing <0.5% impurities to maintain Chapter 29 principal compound status
• Label as 'Research Chemical - Not for Drug Use' to avoid FDA scrutiny
• Use proper DOT labeling (PG III, Environmentally Hazardous Substance)
Related Products under HTS 2932.99.32.00
Benzofuran (Coumarone)
Benzofuran, also known as coumarone, is an aromatic heterocyclic compound with oxygen as the sole hetero-atom in its fused ring structure. It falls under HTS 2932.99.32.00 as a specific aromatic compound listed in this subheading within Chapter 29 for heterocyclic compounds with oxygen hetero-atoms only.
Dibenzofuran (Diphenylene Oxide)
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.
Coumarone Resin Grade Benzofuran
High-purity benzofuran distilled for coumarone-indene resin production in adhesives and inks. Classified under HTS 2932.99.32.00 as the named aromatic heterocyclic compound with oxygen hetero-atom.
2-Methylbenzofuran Analytical Standard
Certified reference material of 2-methyl substituted benzofuran at 1000 ppm in solvent, used for EPA Method 8270 calibration. The core benzofuran structure qualifies it for HTS 2932.99.32.00.
Benzofuran for Perfumery Synthesis
Ultra-pure benzofuran used as intermediate in synthesizing coumarin-like fragrance compounds. HTS 2932.99.32.00 covers this named aromatic heterocyclic oxygen compound.
Dibenzofuran Environmental Standard 1000μg/mL
Dibenzofuran in toluene at 1000μg/mL for Superfund site analysis (EPA 8275A). Solution qualifies under HTS 2932.99.32.00 per Chapter 29 note (e) for transport.