4-tert-Butylcyclohexanone from China
4-tert-Butylcyclohexanone is a sterically hindered methylcyclohexanone derivative where the 4-position bears a tert-butyl group, under HTS 2914.22.20.00. Used in steroid synthesis and liquid crystal production.
Duty Rate — China → United States
43%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Specify cis/trans isomer ratio on invoice as it affects end-use applications
• Validate with HPLC certificate to confirm >99% purity
• Comply with EPA TSCA inventory listing for new chemical import