High Purity Dibutyltin Oxide Catalyst from Canada
High purity grade (>99%) dibutyltin oxide used in esterification and transesterification reactions in fine chemical manufacturing. Classified under HTS 2931.90.90.21 as a specific organo-tin compound per the statistical suffix. Meets Chapter 29 requirements for chemically defined compounds with tin directly linked to carbon.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide detailed spectroscopic analysis (FTIR, NMR) confirming dibutyltin structure to support 2931 classification
• Check REACH/SVHC compliance; organo-tins are candidate substances requiring additional import notifications
• Ensure packaging prevents moisture absorption; degradation could lead to mixture classification under 3824