Distilled Tetrabutyltin (Lab Grade)
Laboratory reagent grade Tetrabutyltin, vacuum distilled for high purity, classified under HTS 2931.90.90.25. The organotin structure with four butyl groups directly bonded to tin qualifies per heading 2931 definitions.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing rare-earth impurities >1%
Compounds of rare-earths take precedence regardless of organic content.
If other organo-tin compounds not specifically enumerated
Statistical breakout exists but same duty treatment applies.
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Import Tips & Compliance
• Include lab analysis confirming >98% purity and C-Sn bonding
• Register as List I chemical if DEA controlled precursors present
• Small package exemption may apply for research quantities <100g
Related Products under HTS 2931.90.90.25
Tetrabutyltin
Tetrabutyltin (C16H36Sn) is a tetraalkyl organotin compound classified under HTS 2931.90.90.25 as an organo-inorganic compound where tin is directly linked to carbon atoms. It is primarily used as a reagent in organic synthesis and polymerization catalyst production.
Tetrabutyltin IV (99% purity)
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.
Tetrabutyltin Stabilized Solution
Tetrabutyltin stabilized with anti-oxidants for safe transport, classified under HTS 2931.90.90.25 per Chapter 29 note (f). The stabilizer is necessary for preservation without changing its organo-inorganic nature.
Tetrabutyltin for Polymerization Catalysis
Technical grade Tetrabutyltin specifically for olefin polymerization catalysis, classified HTS 2931.90.90.25. Meets Chapter 29 criteria for organo-inorganic tin compounds despite end-use labeling.
Tetrabutyltin with Emetic Additive
Tetrabutyltin containing denatonium benzoate emetic for safety identification, classified HTS 2931.90.90.25 per Chapter 29 note (g). Additive facilitates identification without rendering specific for particular use.