Benzoyl Ureine Derivative BU-19 from Canada
BU-19 is a benzoyl-substituted aromatic ureine used in dye intermediate production, chemically defined cyclic amide. HTS 2924.21.4500 for 'other' aromatic ureines; excludes azo dye diluents per note (h).
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• UV-Vis spectrum proves chromophore for CBP chemistry review
• Not for retail; bulk only to avoid Chapter 32/38 retail exclusions
• Purity threshold 95%; impurities may shift to mixture headings