Dibutyltin Dilaurate from Canada
Dibutyltin dilaurate is an organo-tin catalyst with tin-carbon bonds, used primarily as a catalyst in silicone and polyurethane production. It falls under HTS 2931.90.90.29 as other organo-tin compounds per Chapter 29 notes on direct metal-carbon linkages.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.6096.3%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Provide TSCA certification and confirm <0.1% nonylphenol content to meet EPA stabilizer regulations
• Label with exact tin content and CAS number (77-58-7) for customs verification
• Prevent reclassification as plastic additive mixture under 3824 if purity exceeds 98%