Gamma-Butyrolactone (GBL) from Canada
Gamma-Butyrolactone is a five-membered lactone ring heterocyclic compound with oxygen as the sole hetero-atom, classified under HTS 2932.20.50.50 as 'other lactones.' It is a colorless liquid used as a solvent and intermediate in pharmaceutical and polymer production.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide detailed chemical analysis certificates confirming lactone structure and purity to avoid reclassification as solvents under Chapter 38
• Comply with DEA precursor chemical regulations; register as an importer if used in controlled substance production
• Ensure proper Hazard Communication labeling (HCS) for corrosive properties and GHS compliance