Tetrabutyltin IV (99% purity) from Canada
High-purity Tetrabutyltin (99%) meets HTS 2931.90.90.25 specifications for organo-tin compounds used in Stille coupling reactions and transalkylation processes. The direct tin-carbon bonds qualify it as an organo-inorganic compound per Chapter 29 definitions.
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
• Verify 99% purity documentation to confirm 2931 classification over mixtures
• Include Certificate of Analysis (CoA) showing tin-carbon bonding structure
• Comply with EPA organotin restrictions; some uses require SNUR notification