Cumene Sulfonic Acid from Japan
Sulfonic acid derivative of cumene (isopropylbenzene) containing only sulfo groups, fitting HTS 2904.10.37.00 aromatic classification. Used as catalyst and intermediate in cumene hydroperoxide production for phenol/acetone manufacture.
Duty Rate — Japan → United States
15.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Verify no peroxidation occurred; peroxides classify under different provisions
• Include GC chromatogram showing cumene sulfonic acid >95% purity
• Handle as corrosive liquid; requires proper UN packaging and labeling