Ethyl Benzene Sulfonate from China
Ethyl benzene sulfonate is the ethyl ester of benzenesulfonic acid, explicitly covered under this subheading for ethyl esters of sulfo derivatives. Meets HTS 2904.10.5000 criteria as containing only sulfo groups from hydrocarbon parent. Used as intermediate in dye and pharmaceutical synthesis.
Duty Rate — China → United States
41.7%
Rate breakdown
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 esterification verification and molecular formula C8H10O3S in technical data sheet
• Stability data required; ethyl esters can hydrolyze during transport affecting purity claims
• Distinguish from petroleum sulfonic acids (2710) via parent hydrocarbon identification