4-Aminopiperidine Dihydrochloride from Mexico
4-Aminopiperidine dihydrochloride is a substituted piperidine salt used in synthesis of pharmaceutical intermediates like antihistamines. It features the core piperidine ring structure required for HTS 2933.32.5000 classification as 'other' piperidine salts.
Duty Rate — Mexico → United States
16.5%
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
Import Tips
• Include NMR spectra in documentation to confirm substitution position on piperidine ring
• Classify under correct UN 3259 for transport as it's a corrosive solid
• Monitor DEA watch list status due to potential controlled substance precursor applications