Guaiacol USP Grade from Japan

Guaiacol is a naturally occurring organic compound classified as an ether-phenol with the formula C6H4(OH)OCH3, used primarily as an expectorant in pharmaceuticals and as an intermediate in chemical synthesis. It falls under HTS 2909.50.5000 as a chemically defined ether-phenol derivative. This product is supplied as a clear liquid with added stabilizers for safe transport.

Duty Rate — Japan → United States

22%

Rate breakdown

9903.04.629.5%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter

9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter

Calculate with your customs value Verify with the Tariff Assistant

Import Tips

• Provide detailed chemical analysis certificates confirming ether-phenol structure to avoid reclassification under Chapter 29 salt provisions

• Ensure USP-grade documentation and stability data for stabilizers, as per Chapter Note 6(f), to prevent scrutiny during customs inspection

• Declare exact purity levels; impurities exceeding 1% may trigger additional testing for compliance with chemically defined compound requirements