127910-32-1 2-Amino-4-methyl-5-phosphono-3 pentenoic acid carboxyethyl ester 3-Pentenoic acid, 2-amino-4-methyl-5-phosphono-, 1-ethyl ester, (3E)- 3-Pentenoic acid, 2-amino-4-methyl-5-phosphono-, 1-ethyl ester, (E)-(+-)- CGP-39551 Cgp 39551