l-Tyrosine

2-Amino-3-(4-hydroxyphenyl)propionic acid; tyrosine; C₉H₁₁NO₃ = 181.2 (60-18-4)

General reagent grade of commerce complying with the following test.

Homogeneity Carry out the test for Related substances in the monograph for Levodopa. The chromatogram shows only one spot.