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Vanillin Impurity Standard Piperonal from Mexico

Certified reference piperonal at 0.1% concentration in acetonitrile for HPLC calibration in vanillin purity testing. Remains Chapter 29 under note 1(d)/(e) as diluted chemically defined compound for analytical use.

Duty Rate — Mexico → United States

14.8%

Rate breakdown

9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter

Import Tips

Label as 'analytical standard only'; comply with DOT shipping for acetonitrile; provide chromatogram validation

Vanillin Impurity Standard Piperonal from Mexico — Import Duty Rate | HTS 2932.93.00.00