835873-79-5

660817-95-8 2-Butenoic acid, 4-(benzoylamino)-2-cyano-3-hydroxy-, methyl ester,compd. with 1H-imidazole (1:1)

494771-30-1 2-Butenoic acid, 4-(4-chlorophenyl)-2-methoxy-4-oxo-, methyl ester,(2Z)-

627484-84-8 2-Butenoic acid, 4-(3,4-diethoxyphenyl)-4-oxo-, ethyl ester, (2E)-

423762-18-9 2-Butenoic acid, 4-(2-nitrophenoxy)-, ethyl ester

627485-85-2 2-Butenoic acid, 4-(4,5-dihydroxy-2-nitrophenyl)-4-oxo-, ethyl ester,(2E)-

663155-35-9 2-Butenoic acid, 4-(4-methylcyclohexylidene)-2-[(trimethylsilyl)methyl]-,ethyl ester, (2E)-

873691-54-4 2-Butenoic acid, 4-(dibutoxyphosphinyl)-, 1,1-dimethylethyl ester, (2E)-

550310-32-2 2-Butenoic acid, 4-(benzoylamino)-4-oxo-, ethyl ester, (2E)-

62790-49-2 2,5-Cyclohexadien-1-one, 4-[(4-chloro-2-methylphenyl)imino]-6-methyl-,(Z)-

485843-07-0 2,5-Cyclohexadien-1-one, 4-hydroxy-4-(1-naphthalenyl)-

493029-61-1 2,5-Cyclohexadien-1-one, 4-butyl-2,6-dichloro-4-hydroxy-

503614-44-6 2-Butenoic acid, 4-(2-furanyl)-2-hydroxy-4-oxo-, 1,1-dimethylethyl ester,lithium salt

627484-95-1 2-Butenoic acid, 4-(4-methoxyphenyl)-4-oxo-, butyl ester, (2E)-

485843-08-1 2,5-Cyclohexadien-1-one, 4-hydroxy-4-(3-quinolinyl)-

501012-62-0 2-Butenoic acid, 4-(4-methoxyphenoxy)-, ethyl ester

35504-91-7 2-Butenoic acid, 4-(3-nitrophenyl)-4-oxo-, (2E)-

863648-72-0 2-Butenoic acid, 4-(butylamino)-4-oxo-,1-(carboxymethyl)-2-[(2S)-3-methyl-1-oxo-2-[[(phenylmethoxy)carbonyl]amino]butyl]hydrazide, (2E)-

863648-36-6 2-Butenoic acid, 4-(butylamino)-4-oxo-,1-[2-(1,1-dimethylethoxy)-2-oxoethyl]-2-[(2S)-3-methyl-1-oxo-2-[[(phenylmethoxy)carbonyl]amino]butyl]hydrazide, (2E)-

627484-64-4 2-Butenoic acid, 4-(3-chloro-4-methoxyphenyl)-4-oxo-, methyl ester,(2E)-

105090-03-7 2-Butenoic acid, 4-(3-oxocyclohexyl)-3-(phenylthio)-, methyl ester, (E)-