131089-09-3 4-(Bis(2-chloroethyl)amino)-N-((4-hydroxyphenoxy)acetyl)-L-phenylalanine L-Phenylalanine, 4-(bis(2-chloroethyl)amino)-N-((4-hydroxyphenoxy)acetyl)- MelPO Melphalan-N-4-hydroxyphenoxyacetamide