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
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
• 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