Section VI — Products of the chemical or allied industries
Chapter 29 — Organic chemicals
Heading 2933 — Heterocyclic compounds with nitrogen heteroatom(s) only.
National subdivision 2933.7 — Lactams:
Subheading 2933.79 — Other lactams
HS code
2933.79.00 Lactams (excl. epsilon-caprolactam)
Last Verified Date - 1 October 2026
Common commodities
Pyrrolidone crystalsButyrolactam industrial gradePurified Butyrolactam solutionHigh purity Pyrrolidone granulesButyrolactam technical gradeRefined Pyrrolidone solventIndustrial Pyrrolidone pelletsButyrolactam laboratory reagentPure Butyrolactam liquidPharmaceutical grade Pyrrolidone