METHYL 2-AMINOPENT-4-ENOATE CAS:70837-19-3 Formula: C6H11NO2 Catalog: 165435 129.159 COC(=O)C(N)CC=C METHYL 2-BROMOBUT-2-ENOATE CAS:17642-18-1 Formula: C5H7BrO2 Catalog: 1657262 179.013 COC(=O)C(Br)=CC |