Semicarbazide Hydrochloride from Mexico
Semicarbazide hydrochloride derives from hydrazine and is used to form semicarbazones for carbonyl identification. Classified HTS 2928.00.50.00 as organic hydrazine derivative salt following chapter salt classification rules. Essential for chromatographic derivative preparation.
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
• pH-sensitive; buffer solutions required for stability; provide NMR spectra confirmation; small package sizes reduce risk