2931.90.90/Diethylzinc/China

Diethylzinc from China

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 — China → United States

28.7%

Rate breakdown

9903.88.0425%Except as provided in headings 9903.88.33, 9903.88.34, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(g) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(g)

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

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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