Pure 1,2-Benzisothiazolin-3-one Technical Grade (>98%) from Canada
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 — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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