38299-26-2 Benzenaminium, 4-((5-(2-amino-2-carboxyethyl)-2-hydroxyphenyl)azo)-N,N,N-trimethyl-, chloride, (S)- L-Tyrosine-4-azophenyltrimethylammonium chloride L-Tyrosine-p-azophenyltrimethylammonium chloride TAPT Tyr(tma) Tyrosine-4-azophenyltrimethylammonium chloride