7-Methylcoumarin (CAS 541-59-3) from Mexico
7-Methylcoumarin, also known as herniarin, is an ethylcoumarin derivative captured under HTS 2932.20.0500 for its oxygen-heterocyclic lactone structure. It functions as a UV-absorber in cosmetics and a flavor enhancer in tobacco products.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide NMR or HPLC certificates verifying the 7-position methyl group for accurate subheading classification
• Note any added stabilizers required for transport, permitted under Chapter 29 notes (f)
• Watch for FDA flavoring regulations if destined for food/tobacco applications