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2912.50.50.00/Aldol Cyclic Dimer Intermediate/Mexico

Aldol Cyclic Dimer Intermediate from Mexico

Cyclic dimer formed from aldol condensation of acetaldehyde, used in flavor/fragrance synthesis. Classifies under HTS 2912.50.5000 as other cyclic aldehyde polymers. Chemically defined organic compound per Chapter 29.

Duty Rate — Mexico → United States

15.5%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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Import Tips

• GC-MS analysis required showing cyclic dimer >95% with minimal linear aldol byproducts

• Declare as 'chemical intermediate – not for direct food use' to support Chapter 29 classification

• Provide CAS registry number (107-87-9 related) and molecular formula confirmation