Buten
124223
3-METHYL-2-BUTEN-1-AMINE
124311
1-Bromobenzocyclobutene
124952
3-BUTENYLMAGNESIUM BROMIDE
125373
3-Amino-2-butenoic acid ethyl ester
125413
4-Bromo-1,1,2-trifluoro-1-butene
125621
TRANS-1,4-DIBROMO-2-BUTENE
126118
3-Methyl-2-butenal
126688
1-PHENYL-3-BUTEN-1-OL
126689
4-Phenyl-1-butene
128017
HEXAFLUOROISOBUTENE
128773
(+)-(3AR,4R,5R,6AS)-HEXAHYDRO-5-HYDROXY-4-[(1E,3R)-3-HYDROXY-4-(3-TRIFLUOROMETHYL)PHENOXY-1-BUTENYL]-2H-CYCLOPENTA[B]FURAN-2-ONE
128775
rel-[1,1'-Biphenyl]-4-carboxylic acid (3aR,4R,5R,6aS)-hexahydro-2-oxo-4-[(1E)-3-oxo-4-[3-(trifluoromethyl)phenoxy]-1-buten-1-yl]-2H-cyclopenta[b]furan-5-yl ester
129079
TERT-BUTYL 3-BUTENOATE
129889
1-N-Boc-2-trans-Butene-1,4-diamine
129982
4-(3-CARBOETHOXYPHENYL)-1-BUTENE
129996
4-METHOXY-3-BUTEN-2-ONE
131033
(-)-1-[(4,8-Dimethoxyfuro[2,3-b]quinolin-7-yl)oxy]-3-methyl-3-buten-2-ol
131203
9H-FLUOREN-9-YLMETHYL 4-(3-BUTENOYL)TETRAHYDRO-1(2H)-PYRAZINECARBOXYLATE
131301
Ethyl 3-(methylamino)-2-butenoate
133454
(Z)-1,4-Bis(mesyloxy)-2-butene
133920
4,5-Dimethoxybenzocyclobutene-1-carboxylic acid
134682
Benz(g)isoquinoline-5,10-dione, 6,9-bis((2-aminoethyl)amino)-, (2Z)-2- butenedioate (1:2)
135772
ETHYL 4-BROMO-3-ETHOXY-2-BUTENOATE
137604
2,3,3a,4,5,7,7a,8a,8b,8c-Decahydro-3,6,8a-trimethyl-7-(2-methyl-1-oxobutoxy)-2-oxooxireno[2,3]azuleno[4,5-b]furan-4-yl=2-methyl-2-butenoate
137608
2-BROMO-2-BUTENE
137640
[3aa,4a(E),5b,6aa]-4-[4-(3-Chlorophenoxy)-3-oxo-1-butenyl]hexahydro-5-hydroxy-2H-cyclopenta[b]furan-2-one
137836
4-(1,4a,5,6,7,7a-Hexahydro-1-hydroxy-4,7-dimethylcyclopenta[c]pyran-3-yl)-3-buten-2-one
138940
5,6-DIMETHYL-2-[4-[3-(1-PIPERIDINOMETHYL)PHENOXY]-(Z)-2-BUTENYLAMINO]-4(1H)-PYRIMIDONE DIHYDROCHLORIDE
139123
cis-1,4-Dichloro-2-butene
139174
Acetamide,N-[1-methyl-1-(1-oxopropyl)-3-buten-1-yl]-
139355
Acetamide, N-[2-(methylthio)-3,4-dioxo-1-cyclobuten-1-yl]-
139689
ACETIC ACID 3-BUTEN-1-YL ESTER
141573
Ceftibuten dihydrate
143383
2-Butene-1,4-diyl bis(bromoacetate)
143507
ACETIC ACID 3-BUTEN-2-YL ESTER
143554
Benzocyclobutenone