Benzofuran-2(3H)-one from Japan
Benzofuran-2(3H)-one is a fused benzene-pyrrolidone lactone system classified as aromatic heterocyclic lactone under HTS 2932.20.4500. Used in pharmaceutical and polymer synthesis.
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
• Provide CAS number (87-41-2) and IUPAC name verification on commercial invoice
• Declare research/chemical synthesis end-use to avoid medicinal preparation scrutiny
• Ensure solvent content <5% to qualify under Chapter note (e) transport exceptions