HS Code for Isoprene

Isoprene, chemically known as 2-methyl-1,3-butadiene, is a critical organic compound used extensively in the synthetic rubber industry. Under the Harmonized System, it is classified within Chapter 29, which encompasses organic chemicals. Specifically, it falls under heading 2901, which covers acyclic hydrocarbons. Within this heading, subheading 2901.24 is reserved for buta-1,3-diene and isoprene. These two compounds are grouped together because they are both unsaturated acyclic hydrocarbons with two double bonds (dienes), making them essential monomers for producing elastomers like polyisoprene and styrene-butadiene rubber. The classification is strictly based on the chemical structure of the molecule. If the isoprene is part of a crude petroleum mixture, it might be classified in Chapter 27, but as a chemically defined isolated compound, 2901.24 is the mandatory code. The HS system prioritizes the chemical purity and definition of the substance over its industrial application when determining the correct heading in Chapter 29.

Products Included

• High-purity isoprene monomer
• 2-methylbuta-1,3-diene
• Isoprene for synthetic rubber production
• Polymerization grade isoprene

Common Misclassification

Isoprene is often misclassified under HS code 2711, which covers petroleum gases and other gaseous hydrocarbons, especially when it is a byproduct of cracking. However, as a pure chemical, it belongs in 2901.24. It is also sometimes confused with 4002, which is the code for synthetic rubber (the polymer), rather than the monomer.

FAQ

What is the HS code for Isoprene?

The HS code for isoprene is 2901.24, specifically for buta-1,3-diene and isoprene.

What is the primary industrial use of isoprene?

It is primarily used as a monomer for the production of polyisoprene rubber, which mimics the properties of natural rubber, and in the production of various block copolymers.