HS Code for Dicyandiamide

Dicyandiamide, chemically known as 1-cyanoguanidine, is classified under HS code 2926.20. This classification is governed by the rules of Chapter 29, which encompasses organic chemicals. Within this chapter, heading 2926 is dedicated to nitrile-function compounds. Nitriles are characterized by the presence of a cyano group (-C≡N) attached to a carbon atom. Dicyandiamide fits this description perfectly as it is a dimer of cyanamide. The international community has assigned the specific subheading 2926.20 to this compound due to its high volume of trade and its diverse industrial applications, ranging from its use as a curing agent in epoxy resins to its role as a nitrogen stabilizer in fertilizers. The classification is based strictly on the chemical structure of the molecule. According to the Explanatory Notes to the Harmonized System, for a product to be classified here, it must be a separate chemically defined organic compound, whether or not containing impurities. If the dicyandiamide is mixed with other substances to form a prepared fertilizer, the classification would shift to Chapter 31.

Products Included

• Pure 1-cyanoguanidine
• Technical grade dicyandiamide
• Dicyandiamide crystals
• Dicyandiamide powder for industrial use

Common Misclassification

Dicyandiamide is often confused with HS code 2924.29, which covers other cyclic amides. While dicyandiamide has amide-like characteristics, the nitrile (cyano) group is the determining functional group for classification under 2926. It is also sometimes incorrectly classified under 3102.10 (Urea) when intended for agricultural use, but as a pure chemical, 2926.20 is legally required.

FAQ

What is the HS code for Dicyandiamide?

The specific HS code for dicyandiamide (1-cyanoguanidine) is 2926.20.

Is dicyandiamide classified as a fertilizer?

While used in the fertilizer industry, pure dicyandiamide is classified as an organic chemical in 2926.20. Only when it is part of a prepared fertilizer mixture does it move to Chapter 31.