HS Code for Epsilon-caprolactam

Epsilon-caprolactam is classified under HS code 2933.71, a designation that reflects its chemical structure as a heterocyclic compound. Chapter 29 of the Harmonized System is dedicated to organic chemicals, and its structure is based on the chemical functional groups present in a molecule. Heading 2933 covers heterocyclic compounds with nitrogen hetero-atom(s) only. Within this heading, the system provides specific subheadings for lactams, which are cyclic amides. Epsilon-caprolactam, also known as 6-hexanelactam, is a seven-membered ring compound that serves as the essential monomer for the production of Nylon 6. Because of its massive industrial scale and specific chemical identity, it is explicitly named in subheading 2933.71. The classification under this code is strictly for the separate chemically defined compound, whether or not it contains impurities. However, the General Rules of Interpretation (GRI) and the Chapter 29 notes specify that if the product has been polymerized, it can no longer be classified as a chemical in Chapter 29. Instead, it would be classified as a polymer in primary form under Chapter 39, specifically 3908.10 for polyamides. Furthermore, if the caprolactam is dissolved in a solvent other than water, or if it has been mixed with other substances to create a prepared chemical product, it might be moved to Chapter 38. The precision of 2933.71 allows for the tracking of this chemical's global supply chain, which is vital for the textile and automotive industries.

Products Included

• 6-Hexanelactam
• Pure industrial epsilon-caprolactam
• Caprolactam flakes or molten liquid
• Cyclohexanone oxime rearrangement products

Common Misclassification

The most common misclassification is with Nylon 6 polymer (3908.10). While caprolactam is the precursor, once it undergoes polymerization, it leaves Chapter 29. It is also sometimes confused with other lactams classified under 2933.79, but as a specifically named compound, 2933.71 takes precedence.

FAQ

What is the HS code for Epsilon-caprolactam?

The HS code for Epsilon-caprolactam (6-hexanelactam) is 2933.71.

Is caprolactam classified as a plastic?

No, in its monomeric form, it is an organic chemical (2933.71). It only becomes a plastic (polyamide) after polymerization, which is classified in Chapter 39.