Cumene Sulfonic Acid from Canada
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 — Canada → United States
15.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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