Benzoyl Ureine Derivative BU-19 from China
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 — China → United States
44%
Rate breakdown
9903.88.0325%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)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
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