Tetrabutyltin IV (99% purity) from Japan
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 — Japan → United States
3.7%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
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