Benzofuran (Coumarone); and Dibenzofuran (Diphenylene oxide)
Heterocyclic compounds with oxygen hetero-atom(s) only: > Other: > Other: > Aromatic: > Benzofuran (Coumarone); and Dibenzofuran (Diphenylene oxide)
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified 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.
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.
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.
Coumarone from Coal Tar Distillation
Distilled benzofuran (coumarone) separated from coal tar light oil, meeting purity for Chapter 29. Specifically provided for in HTS 2932.99.32.00 as named compound.