(E)-2-amino-4-methyl-5-phosphonopent-3-enoic acid 2-amino-4-methyl-5-phosphonopent-3-enoic acid (E)-2-amino-4-methyl-5-phosphono-pent-3-enoic acid 2-amino-4-methyl-5-phosphono-pent-3-enoic acid 137424-81-8 2-Amino-4-methyl-5-phosphono-3-pentenoic acid 3-Pentenoic acid, 2-amino-4-methyl-5-phosphono- 4-Methyl-appa Cgp 37849 Cgp 40017 Cgp 40116 Cgp-37849