Ergosterol Analytical Standard from Japan
Ergosterol, a fungal sterol and vitamin D2 precursor, is classified under 2906.13.5000 as 'other' sterols and inositols within cyclic alcohols. This chemically defined compound meets Chapter 29 specifications for pure organic sterols. Used as analytical standard in food and pharmaceutical testing.
Duty Rate — Japan → United States
12.5%
Rate breakdown
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
Import Tips
• Include ISO 17034 accreditation certificate; declare quantity and concentration precisely; ensure tamper-evident packaging for reference material integrity