Cyclohexane Bis(Isopropyl Acetyl) 99% Pure from China
High-purity 1,1-bis(1-methylethoxy)cyclohexane at 99% used as carbonyl protecting agent in steroid synthesis. Specifically enumerated under HTS 2911.00.10.00 within acetals and hemiacetals subchapter. Essential for selective organic transformations in fine chemical manufacturing.
Duty Rate — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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)
Import Tips
• Use stainless steel drums with nitrogen blanketing; acetals are moisture-sensitive and hydrolyze during transit
• Pre-clear with FDA if ultimate use is pharmaceutical intermediate (even if not final drug)
• Document synthesis route to prove compliance with Chapter 29 purity requirements vs
• Chapter 38 preparations