Diethylzinc from Canada
Diethylzinc (ZnEt2) features zinc-carbon bonds characteristic of organo-inorganic compounds under 2931.90.90. Essential reagent for asymmetric synthesis and semiconductor production; pyrophoric nature requires specialized handling.
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
• UN3399 Organometallic substance packaging group I—stainless steel cylinders only
• Spontaneous ignition on water contact; emergency response plan mandatory for CBP
• Pharma intermediate—provide synthetic route documentation for DEA precursor review