Orthoboric Acid USP Grade from United States
USP-grade orthoboric acid meets pharmaceutical standards for use in eye washes and as a preservative. It is boric acid, chemically defined per Chapter 28 Note 1(a), with high purity (99.8%+). The pharmaceutical grade does not change its classification under this tariff item.
Duty Rate — United States → Canada
0%
Import Tips
• Ensure the product is not put up in measured doses or for retail sale as a pharmaceutical, which would fall under Chapter 30
• Verify the USP certificate to confirm purity
• Check if a Drug Identification Number (DIN) is required for import