2933.39.61.30/1,6-Bis[N-(3-dimethylcarbamoxy-α-picolyl)-N,N-diethylammonio]-hexane-2,5-dione Dibromide (n=4)/China
1,6-Bis[N-(3-dimethylcarbamoxy-α-picolyl)-N,N-diethylammonio]-hexane-2,5-dione Dibromide (n=4) from China
A bis-oxime pyridinium dibromide with n=4, containing diethylammonium groups (C4 alkyl ≤C10) and a hexane dione linker with carbamoxy-substituted picolyl moieties. Classified under HTS 2933.39.61.30 due to its precise structural match to the heading for unfused pyridine heterocycles listed in U.S. note 3. Primarily imported for chemical research and synthesis of nerve agent antidotes.
Duty Rate — China → United States
112.5%
Rate breakdown
9903.04.6093.5%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
• Include Safety Data Sheet (SDS) and CAS number (if assigned) for customs clearance; verify alkyl chain length ≤C10 to stay within subheading; watch for DEA scheduling if precursor-like structure triggers scrutiny