Pseudoephedrine Impurity Standard (Norephedrine HCl)
Certified reference material of norephedrine hydrochloride used as an impurity standard in pseudoephedrine quality control testing is a pure salt of norephedrine. Tariff item 2939.44.00 covers norephedrine and its salts, including reference standards, so this product falls under it.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is a salt of another ephedra alkaloid
Other ephedra alkaloid salts are classified in the residual subheading.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Include the certificate of analysis and lot number for the reference standard
• Clearly state the product is for laboratory quality control use
• If the product is shipped in small quantities, verify if a Controlled Drugs and Substances Act permit is needed
Related Products under Tariff item 2939.44.00
DL-Norephedrine Sulfate
DL-norephedrine sulfate is the sulfate salt of racemic norephedrine, an alkaloid of ephedra reproduced by synthesis. As a salt of norephedrine, it falls squarely under tariff item 2939.44.00, which covers norephedrine and its salts.
L-Norephedrine Hydrobromide
L-norephedrine hydrobromide is the levorotatory enantiomer salt of norephedrine, used in specialized pharmaceutical applications. As a salt of norephedrine, it is classified under tariff item 2939.44.00, which covers norephedrine and its salts.
Norephedrine Base Free Form
Norephedrine base in free form is the synthetic reproduction of the natural alkaloid, intended for subsequent salt formation. Tariff item 2939.44.00 covers norephedrine and its salts, and the base form is included as the parent compound.
Norephedrine Hydrochloride USP Grade
Norephedrine hydrochloride USP grade is a high-purity salt form of norephedrine meeting pharmacopeial standards for pharmaceutical use. As a salt of norephedrine, it is classified under tariff item 2939.44.00, which covers norephedrine and its salts.
Norephedrine (Norpseudoephedrine) Research Chemical
High-purity norephedrine hydrochloride (>99%) sold to research institutions for studying sympathomimetic pathways is a salt of norephedrine. Tariff item 2939.44.00 covers norephedrine and its salts, regardless of the end use, so this research chemical falls under it.
Norephedrine Phosphate Pharmaceutical Grade
Norephedrine phosphate pharmaceutical grade is a salt of norephedrine offering enhanced solubility for oral and injectable decongestant formulations. Tariff item 2939.44.00 covers norephedrine and its salts, making this product classifiable under it.