Semicarbazide Hydrochloride from China
Semicarbazide hydrochloride is a ureine derivative salt used in pharmaceutical synthesis and as a reagent for carbonyl compound detection. Classified under HTS 2924.21.50.00 as 'other' ureines and derivatives; salts thereof, meeting Chapter 29 requirements for separate chemically defined organic compounds with carboxyamide function.
Duty Rate — China → United States
31.5%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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
• Provide detailed spectroscopic data (NMR, IR) confirming ureine structure to prevent reclassification
• Label as research chemical if not USP grade to avoid FDA drug import scrutiny
• Check for hydrate forms; water content may affect 'dissolved in water' note (e) exclusion