HS Code for Propylene glycol

Propylene glycol, chemically known as propane-1,2-diol, is classified under HS code 2905.32. This classification is determined by its status as an acyclic diol. Heading 2905 covers acyclic alcohols and their halogenated, sulfonated, nitrated, or nitrosated derivatives. Subheading 2905.32 is specifically reserved for propylene glycol. The classification is based on the molecular structure, which consists of a three-carbon chain with two hydroxyl (-OH) groups attached to adjacent carbon atoms. Because it is a chemically defined organic compound, it remains in Chapter 29 regardless of whether it is intended for food, pharmaceutical, or industrial use, provided it is not mixed with other substances in a way that creates a new preparation. Its versatility as a humectant, solvent, and preservative makes it a high-volume trade item, and correct classification ensures compliance with safety and environmental regulations. The Harmonized System treats diols (alcohols with two hydroxyl groups) as a specific subgroup within the acyclic alcohol heading. Propylene glycol is distinct from other diols like ethylene glycol due to its specific carbon chain length and the positioning of its functional groups. This specificity allows customs authorities to track the movement of this substance, which is widely used in everything from aircraft de-icing fluids to food-grade additives and cosmetic formulations.

Products Included

• Propane-1,2-diol
• USP grade propylene glycol
• Industrial grade propylene glycol
• 1,2-Dihydroxypropane

Common Misclassification

Propylene glycol is often misclassified under HS code 3820.00 when it is part of an antifreeze preparation. While pure propylene glycol is 2905.32, once it is mixed with inhibitors or other chemicals to function as an antifreeze, it moves to Chapter 38. It is also sometimes confused with ethylene glycol (2905.31).

FAQ

What is the HS code for Propylene glycol?

The HS code for pure propylene glycol is 2905.32.

Is food-grade propylene glycol classified differently?

No, as long as it is a pure chemical substance, both industrial and food-grade propylene glycol are classified under 2905.32.