Cumene Sulfonic Acid from Japan
Cumene sulfonic acid from isopropylbenzene sulfonation, single sulfo group only. Precisely matches HTS 2904.10.5000 for other sulfo hydrocarbon derivatives. Intermediate for saccharin production and polymerization catalyst.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Purity >96% required; lower grades risk Chapter 38 mixture classification
• Strong odorant; proper venting containers mandatory for hazmat compliance
• Saccharin production declaration may trigger additional FDA/DOJ scrutiny