Butyrolactone Technical Grade 99%
Technical grade butyrolactone at 99% purity is a separate chemically defined organic compound fitting Chapter 29 note (a), specifically under lactones with oxygen hetero-atom(s) only in HTS 2932.20.50.10. Used in industrial synthesis of pyrrolidones and solvents.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not specifically 'Butyrolactone' but another lactone variant
HTS 2932.20.50 has sub-specificity; other lactones fall under residual .50.50.
If with organic composite solvents
Lactones formulated as organic solvent composites shift to Chapter 38 organic composites.
If for sultones/sulfones if sulfur present
Sulfur-containing cyclic compounds classified earlier in 2904, not lactone oxygen-only.
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Import Tips & Compliance
• Include stabilizer documentation if added per Chapter Note (f) to avoid reclassification; check for anti-dumping duties on solvent precursors; label clearly as industrial chemical to prevent misuse flags
Related Products under HTS 2932.20.50.10
Gamma-Butyrolactone (GBL)
Gamma-Butyrolactone (GBL) is a cyclic lactone, a five-membered heterocyclic ring compound containing one oxygen hetero-atom, classified under HTS 2932.20.50.10 as 'Butyrolactone'. It serves as a chemical intermediate in pharmaceutical and polymer production.
γ-Butyrolactone USP Grade
USP-grade γ-Butyrolactone is a high-purity lactone meeting pharmaceutical standards, classified as a heterocyclic oxygen-only compound under HTS 2932.20.50.10 per Chapter 29 definitions. Primarily used as an intermediate for synthesizing GABA-related drugs.
Dihydrofuran-2(3H)-one (Butyrolactone)
Dihydrofuran-2(3H)-one, synonymous with butyrolactone, is a lactone with a single oxygen hetero-atom in its heterocyclic ring, directly under HTS 2932.20.50.10. Essential for polymer and resin manufacturing.
Butyrolactone with Stabilizer
Stabilized butyrolactone includes necessary preservatives for transport as allowed by Chapter Note (f), remaining classified under HTS 2932.20.50.10 as the core lactone compound. Used in electronics cleaning formulations.
Industrial Butyrolactone Solvent Precursor
Industrial-grade butyrolactone serves as a precursor for solvents like NMP, classified as a pure lactone heterocyclic under HTS 2932.20.50.10 per Chapter 29(a). Meets criteria for separate chemically defined compound.