HS Code for MIBK

Methyl Isobutyl Ketone (MIBK), chemically known as 4-methylpentan-2-one, is classified under HS code 2914.13. As an organic chemical compound, it resides in Chapter 29. Heading 2914 is dedicated to ketones and quinones. MIBK is an acyclic ketone, and like MEK, it has its own specific subheading due to its industrial importance as a solvent for gums, resins, and nitrocellulose. The classification is strictly based on the molecular structure of the compound. MIBK is produced industrially from acetone via a multi-step process involving diacetone alcohol and mesityl oxide. For customs purposes, the product must be a separate chemically defined compound. If the MIBK is denatured or mixed with other substances to create a specific industrial thinner, the classification would move to Chapter 38. However, in its pure form, the chemical identity as 4-methylpentan-2-one dictates the use of 2914.13.

Products Included

• Pure Methyl Isobutyl Ketone
• 4-Methylpentan-2-one
• Isopropylacetone
• MIBK solvent (high purity)
• Hexone

Common Misclassification

MIBK is often misclassified with its 'sibling' ketones, such as Acetone (2914.11) or Methyl Ethyl Ketone (2914.12). Because these chemicals are often used interchangeably in industrial processes, documentation errors are common. It is also sometimes misclassified under 3814.00 if the importer views it primarily as a 'thinner' rather than a specific chemical compound.

FAQ

What is the HS code for MIBK?

The HS code for Methyl Isobutyl Ketone is 2914.13.

Is MIBK classified differently if used for laboratory research?

No, the HS code remains 2914.13 regardless of the end use, provided the chemical remains a pure, separate chemically defined compound as per the Chapter 29 notes.