HS Code for Carfentanil

Carfentanil is classified under HS code 2933.33, which is situated within the category of heterocyclic compounds with nitrogen hetero-atom(s) only. Specifically, this subheading is dedicated to compounds containing an unfused pyridine ring in their chemical structure. Carfentanil is a highly potent synthetic opioid analog of fentanyl. The Harmonized System specifically names carfentanil under 2933.33 because it is an International Nonproprietary Name (INN) substance. Classification is strictly determined by the molecular structure—specifically the presence of the pyridine ring—and its identification as a specific pharmaceutical or chemical entity listed in the HS nomenclature. This ensures uniform global tracking and regulation of controlled substances. The classification follows the rules for organic chemicals in Chapter 29, where specific subheadings are provided for substances with high potential for abuse or those subject to international control conventions.

Products Included

• Carfentanil (INN) in pure chemical form
• Carfentanil citrate
• Salts of carfentanil
• Esters of carfentanil
• Chemical derivatives of carfentanil as defined in Chapter 29 notes

Common Misclassification

Carfentanil is often misclassified under HS code 2933.39, which is a residual category for "other" pyridine derivatives. However, because carfentanil is explicitly named in the 2933.33 subheading, the specific code must take precedence over the general one. It is also sometimes confused with HS code 3004 if it is prepared as a medicament for therapeutic or prophylactic use. However, in its bulk chemical form, it must remain in Chapter 29. Furthermore, it should not be confused with fentanyl itself, which is classified under 2933.33 but is a distinct chemical entity.

FAQ

What is the HS code for Carfentanil?

The HS code for Carfentanil (INN) is 2933.33, which covers specific heterocyclic compounds containing an unfused pyridine ring.

Why is Carfentanil listed specifically in the HS code?

Carfentanil is specifically listed under 2933.33 because it is an International Nonproprietary Name (INN) substance. The World Customs Organization (WCO) provides specific subheadings for such substances to facilitate the monitoring of trade in controlled and potent pharmaceutical chemicals.