2,4-Dinitrophenylhydrazine from Canada
2,4-Dinitrophenylhydrazine (DNPH) is a dinitrated phenylhydrazine derivative, chemically defined and used for aldehyde/ketone detection. Classifies under HTS 2928.00.15.00 as hydrazine derivative with permitted nitrated substituents.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• CAS 119-26-6 declaration; provide HPLC purity >98% certificate
• UN 1577 explosive precursor; obtain ATF permits if required for quantities
• Do not misclassify as dye intermediate without dilution proof