2922.49.37.00/DL-Tyrosine/Germany

DL-Tyrosine from Germany

DL-Tyrosine is a synthetic aromatic amino acid with phenolic oxygen function, falling under HTS 2922.49.37.00 as 'other' oxygen-function amino-compounds. Despite its phenolic group, it qualifies due to single carboxyl classification and exclusion from proteinogenic listings. Commonly used in nootropic supplements and biochemical research.

Duty Rate — Germany → United States

18.5%

Rate breakdown

9903.04.628.5%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

9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter

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Import Tips

• Include spectral analysis (NMR/IR) verifying aromatic structure and single oxygen-function amino-acid nature to prevent misclassification as phenols (2907)

• Label with correct nomenclature avoiding 'L-tyrosine' designation if racemic; racemates have different regulatory considerations

• Watch for reclassification as feed-grade additives (2309) if impure or mixed with carriers; must be >98% pure chemically defined compound