Michler's Ketone (4,4'-Bis(dimethylamino)benzophenone) from China
Michler's ketone is a diaryl ketone with two dimethylamino groups, widely used as a photosensitizer and dye intermediate. Falls under HTS 2918.30.2500 as an aromatic compound described in additional U.S. note 3 to section VI, emphasizing its ketone with oxygen-related functions in context.
Duty Rate — China → United States
31.5%
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)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• CAS 90-94-8 verification essential; provide chromatograms showing >98% purity to avoid mixture classification
• Note potential CMR (carcinogen/mutagen/reprotoxic) status requiring special handling declarations