1,n-Bis[N-(3-dimethylcarbamoxy-α-picolyl)- N,N-dialkyl (≤ C10) ammonio]-alkane-(2,(n-1)- dione) dibromide (n=2-12)
Heterocyclic compounds with nitrogen hetero-atom(s) only: > Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: > Other: > Other: > Other: > Products described in additional U.S. note 3 to section VI > 1,n-Bis[N-(3-dimethylcarbamoxy-α-picolyl)- N,N-dialkyl (≤ C10) ammonio]-alkane-(2,(n-1)- dione) dibromide (n=2-12)
Duty Rate (from China)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 2933.39.61.30
1,4-Bis[N-(3-dimethylcarbamoxy-α-picolyl)-N,N-dimethylammonio]-butane-2,3-dione Dibromide (n=2)
This is a specific bis-pyridinium oxime compound with n=2, featuring two pyridine rings linked by a butane dione chain with dimethylcarbamoxy groups and dibromide counterions. It falls under HTS 2933.39.61.30 as a heterocyclic compound containing unfused pyridine rings, described in additional U.S. note 3 to section VI. Used primarily as a research chemical or potential antidote intermediate in pharmaceutical synthesis.
1,6-Bis[N-(3-dimethylcarbamoxy-α-picolyl)-N,N-diethylammonio]-hexane-2,5-dione Dibromide (n=4)
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.
1,10-Bis[N-(3-dimethylcarbamoxy-α-picolyl)-N-butyl-N-methylammonio]-decane-2,9-dione Dibromide (n=8)
This n=8 homolog features butyl-methyl (C5 total ≤C10) ammonio groups on a decane dione chain bridged by carbamoxy-picolyl pyridines, as a dibromide salt. It matches HTS 2933.39.61.30 exactly as a product described in additional U.S. note 3 to section VI for nitrogen-heterocyclic pyridines. Used in advanced chemical research for potential therapeutic applications.
1,12-Bis[N-(3-dimethylcarbamoxy-α-picolyl)-N,N-dipropylammonio]-dodecane-2,11-dione Dibromide (n=10)
The longest chain variant (n=12 max) with dipropyl (C6 ≤C10) ammonio groups, pyridine-carbamoxy units, and dodecane dione core as dibromide. Directly specified under HTS 2933.39.61.30 for these exact bis-ammonio alkane dione dibromides per U.S. note 3. Imported mainly for synthetic chemistry and pharmacological studies.
1,8-Bis[N-(3-dimethylcarbamoxy-α-picolyl)-N-ethyl-N-hexylammonio]-octane-2,7-dione Dibromide (n=6)
An n=6 asymmetric dialkyl (ethyl+hexyl=C8 ≤C10) bis-pyridinium dibromide with precise carbamoxy-α-picolyl substitution on octane dione. Fits HTS 2933.39.61.30 as a chemically defined heterocyclic pyridine compound under additional U.S. note 3. Supplied to research labs for nerve agent reactivation studies.