2,4-Lutidine (2,4-Dimethylpyridine)
2,4-Lutidine contains two methyl groups at positions 2 and 4 on the pyridine ring, used as a solvent and catalyst in organic synthesis. Falls under HTS 2933.39.10.00 as a lutidine, specifically named in the heading for pyridine derivatives. Meets Chapter 29 purity requirements for separate classification.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If commercial mixtures of lutidine isomers
Only pure, identified isomers qualify for 2933.39.10; mixtures go to 'other'.
If viewed as cyclic hydrocarbon derivative
Material composition emphasizing hydrocarbon over heterocycle may shift classification.
If other organo-inorganic coordination compounds
If metal-complexed lutidines, Chapter note 3(C)(3) applies later numerical heading.
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Import Tips & Compliance
• Certificate of Analysis must specify >98% purity and distillation range 157-160°C
• Classified as combustible liquid; use UN-approved jerricans with secondary containment
Related Products under HTS 2933.39.10.00
2-Picoline (2-Methylpyridine)
2-Picoline is a liquid organic compound with the formula C6H7N, featuring a methyl group at the 2-position of the pyridine ring. It falls under HTS 2933.39.10.00 as a picoline, which are methylated pyridines containing an unfused pyridine ring. Primarily used as an intermediate in pharmaceutical and agrochemical synthesis.
4-Picoline (4-Methylpyridine)
4-Picoline features a methyl substituent at the 4-position of the pyridine ring, widely used in agrochemical and pharmaceutical production. It qualifies for HTS 2933.39.10.00 as a picoline under the heterocyclic nitrogen compounds with unfused pyridine ring provision. Often stabilized with anticaking agents per Chapter 29 note (f).
2,6-Lutidine (2,6-Dimethylpyridine)
2,6-Lutidine is a symmetric dimethylpyridine used in coordination chemistry and as a ligand precursor. Classified in HTS 2933.39.10.00 per heading description for lutidines with unfused pyridine ring structure. Sterically hindered base for synthetic applications.
Collidine Mixture (2,4,6-Trimethylpyridine)
Collidine refers to trimethylpyridines like 2,4,6-trimethylpyridine, used in epoxy resin curing and as resolving agents. HTS 2933.39.10.00 covers collidines as specifically named pyridine derivatives with unfused rings. High boiling point (170°C) solvent applications.
3-Picoline (3-Methylpyridine)
3-Picoline is a colorless liquid with a pyridine ring substituted by a methyl group at the 3-position, used in vitamin B6 synthesis. Classified under HTS 2933.39.10.00 as a picoline per Chapter 29 notes for unfused pyridine ring compounds. Key intermediate for pharmaceuticals and resins.
α-Picoline Technical Grade
Technical grade α-picoline (primarily 2-methylpyridine >85%) used in bulk chemical manufacturing. Still qualifies under HTS 2933.39.10.00 if identified as the separate compound per Chapter 29 note 1(a), despite minor impurities. Common in pesticide intermediate production.