1-(3-Sulfo propyl) pyridinium hydroxide
A chemically defined heterocyclic compound containing an unfused pyridine ring with a sulfo propyl substituent, classified under HTS 2933.39.08.00 per Chapter 29 notes for separate organic compounds with nitrogen hetero-atoms. Used as an intermediate in pharmaceutical synthesis and dye production.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified primarily by sulfonation
Sulfonated pyridine derivatives fall under 2933.40 when sulfo group is the principal characteristic function.
If containing sugar residues
Organic compounds with sugar ethers/esters classify in 2942 per Chapter 29 note 2(c).
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide Certificate of Analysis (COA) confirming chemical identity and purity as required for Chapter 29 compounds
• Declare as hazardous material if meeting DOT criteria for corrosive properties; use UN proper shipping name
• Avoid misclassification as sulfonated derivatives under 2933.40 if sulfo group doesn't define principal character
Related Products under HTS 2933.39.08.00
N,N'-Bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,6-hexane diamine
A piperidine derivative with hexane diamine linkage, specifically named in HTS 2933.39.08.00 as a heterocyclic nitrogen compound. Used as a light stabilizer in polymer formulations and UV protectant in plastics. Falls under unfused pyridine ring compounds per tariff hierarchy.
3,5-Dimethyl-2-hydroxymethyl-4-methoxypyridine (Pyrmethyl alcohol)
Pyrmethyl alcohol, a pyridine derivative with methyl, methoxy, and hydroxymethyl substituents, explicitly listed in HTS 2933.39.08.00. Serves as a key intermediate in vitamin B6 (pyridoxine) synthesis for pharmaceutical production.
Dipenta methylene thiuram tetrasulfide
A thiuram tetrasulfide derivative containing piperidine rings, specifically enumerated in HTS 2933.39.08.00. Functions as an ultra-accelerator in rubber vulcanization processes for tire manufacturing.
4-Picolyl chloride hydrochloride
Hydrochloride salt of 4-picolyl chloride, a pyridine derivative explicitly named in HTS 2933.39.08.00. Used as alkylating agent in organic synthesis for pharmaceuticals and agrochemicals.
Piperidino ethyl chloride hydrochloride
Hydrochloride salt of piperidino ethyl chloride, listed in HTS 2933.39.08.00 as heterocyclic nitrogen compound. Employed as building block in antihistamine and antipsychotic drug synthesis.