Dipropyl Ketone (4-Heptanone) from China
Dipropyl ketone (CH3CH2CH2COCH2CH2CH3), or 4-heptanone, is an acyclic ketone used in organic synthesis and as a high-boiling solvent. It is classified in HTS 2914.19.00.00 as 'other' acyclic ketones without additional oxygen functions, per Chapter 29 definitions. This ensures proper distinction from aromatic or quinone structures.
Duty Rate — China → United States
137.5%
Rate breakdown
9903.04.6096%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
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)
Import Tips
• Include GC-MS reports proving chemical purity >98% to avoid mixture classification; comply with VOC regulations
• Avoid common error of declaring as 'ketone oil' which triggers 1518/1522 vegetable oil headings