Pure 1,2-Benzisothiazolin-3-one Technical Grade (>98%) from China
Technical grade 1,2-benzisothiazolin-3-one with purity exceeding 98% serves as the raw material for manufacturing commercial biocide formulations. This chemically defined aromatic heterocyclic compound falls squarely under HTS 2934.99.09.00 per Chapter 29 note (a).
Duty Rate — China → United States
112.5%
Rate breakdown
9903.04.60100%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
Import Tips
• Provide HPLC analysis certificates confirming >98% purity for tariff classification
• Obtain TSCA pre-manufacture notice approval for new chemical importers
• Use secondary containment packaging per UN corrosive solid requirements