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4-Picoline (4-Methylpyridine) from China

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).

Duty Rate — China → United States

100%

Rate breakdown

9903.04.60100%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)

Import Tips

Submit NMR spectra confirming structure; 4-picoline often contaminated with 2/3-isomers

DOT requires 4H1 steel drums; include Material Safety Data Sheet (MSDS) showing LD50 >500 mg/kg

Avoid classification disputes by declaring CAS 108-89-4 explicitly on commercial invoice