(S)-4-((2-(Acetylamino)-3-(4-hydroxyphenyl)-1-oxopropyl)amino)benzoic acid 38219-60-2 4-(N-Acetyltyrosyl)aminobenzoic acid Benzoic acid, 4-((2-(acetylamino)-3-(4-hydroxyphenyl)-1-otopropyl)amino)-, (S)- EINECS 253-832-3