Nsc357757
CAS No. 81816-05-9
2-Butenoic acid, 2-cyano-, (2E)-
20049-17-6
2-Butenoic acid, 2-isocyano-, ethyl ester
64793-63-1
2-Butenoic acid, 2-formyl-3-phenyl-, ethyl ester
526284-44-6
2-Butenoic acid, 2-methoxy-, methyl ester
65221-09-2