N,N-Di(n-propyl)aminoethanethiol Hydrochloride from China
Protonated salt form of N,N-di(n-propyl)aminoethane-2-thiol hydrochloride. Explicitly covered under HTS 2930.90.92.22 which includes protonated salts of specified aminoethane-2-thiols (excluding dimethyl/diethyl). Used in aqueous formulations for biochemical research.
Duty Rate — China → United States
112.5%
Rate breakdown
9903.04.6096.3%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
Import Tips
• Specify salt counterion in COA; hydrochloride typical but others qualify if protonated
• Declare pH stability data; salts more stable than free base for import handling
• Segregate from oxidizers in shipping; thiols highly reactive even in salt form