Cumene Sulfonic Acid from China
Cumene sulfonic acid, derived from sulfonation of cumene (isopropylbenzene), is an aromatic sulfonated hydrocarbon. Classified in HTS 2904.99.40.00 as specified in additional U.S. note 3 to section VI. Serves as intermediate for detergents and phenolic resins.
Duty Rate — China → United States
30.5%
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
• Confirm alkyl substitution pattern via NMR or GC-MS for accurate description
• Ship in stabilized form only if necessary for transport per chapter notes
• Prevent aggregation with anti-caking agents that alter classification