4-Hydroxybenzoic Acid USP Grade from United States
4-Hydroxybenzoic acid USP grade (p-hydroxybenzoic acid) is a carboxylic acid with a phenol function, classified under this tariff item as a separate chemically defined compound. This pharmaceutical-grade product meets USP standards for purity and is used primarily in pharmaceutical applications.
Duty Rate — United States → Canada
0%
Import Tips
• Provide a certificate of analysis showing USP grade purity to support classification
• Ensure the product is a separate chemically defined compound; mixtures may be classified elsewhere
• Check if the product is for pharmaceutical use and whether it is put up for retail sale