Isobutyraldehyde Diethyl Acetal from China
Isobutyraldehyde diethyl acetal is a branched acetal used in pharmaceutical intermediates. Falls under HTS 2911.00.50.00 as an 'other' hemiacetal/acetal derivative meeting chapter chemical purity standards.
Duty Rate — China → United States
42.8%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 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
• For pharma use, provide DMF or CEP from supplier
• Confirm branched vs. linear isomer via GC-MS if needed
• Label with GHS pictograms per OSHA HazCom standards