Paraldehyde Pharmaceutical Intermediate from Mexico
High-purity paraldehyde used as intermediate in synthesis of other pharmaceuticals, confirmed USP-equivalent standards. HTS 2912.29.30.00 covers this cyclic aldehyde polymer explicitly for medicinal chemical applications. Excludes formulated drugs per Chapter exclusions.
Duty Rate — Mexico → United States
10%
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
• Pre-register with FDA for bulk pharmaceutical chemical imports
• Use UN-approved packaging for flammable liquid classification
• Document cyclic trimer structure to distinguish from acetaldehyde monomer