2-Mercaptothiazoline from China
2-Mercaptothiazoline (2-thiazoline-2-thiol) features an unfused thiazole ring with a thiol substituent, used in rubber vulcanization and photography. Falls under HTS 2934.10.90.00 as an 'other' thiazole compound per Chapter 29 definitions for organo-sulfur heterocycles not covered by heading 2930.
Duty Rate — China → United States
137.5%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
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
• Classify as UN2785 organosulfur compound for DOT hazmat shipping compliance
• Provide vulcanization accelerator test data if declaring industrial chemical use
• Include stabilizer composition if product contains anti-oxidants exceeding Chapter 29 impurity limits