Pentobarbital Free Acid Form from Mexico
Pentobarbital in its free acid form (non-salt) is explicitly covered under HTS 2933.53.00.00 as pentobarbital (INN). Used in synthesis of injectable formulations. Chemically pure heterocyclic compound per Chapter 29 scope.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• pH specification critical; free acid form (pH 4-6) vs salt (pH 9-11) affects processing
• Particle size distribution data prevents milling duty disputes at customs
• Avoid ethyl alcohol residues from synthesis per Chapter 29 exclusion note 2(b)