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StructureChemical NameCASMF
2-Butenedioic acid (E)-, di-C12-14-alkyl esters, polymers with Et vinyl ether and vinyl acetate 68988-67-0
2-Butenedioic acid (E)-, polymer with 1,3-butadiene and ethenylbenzene, sodium salt 129539-35-1
2-Butenedioic acid (Z)-, polymer with N-(butoxymethyl)-2-propenamide, ethenylbenzene, ethyl 2-propenoate, 2-hydroxyethyl 2-methyl-2-propenoate and 2-methyl-2-propenoic acid 97136-01-1
3-[4-(but-3-en-1-yloxy)phenyl]prop-2-enoic acid
2-(but-2-en-1-yloxy)benzaldehyde
2-Butenethioamide, 2-cyano-3-mercapto- 40634-82-0 C5H6N2S2
2-Butenenitrile, 3-(4-morpholinyl)- 108358-06-1 C8H12N2O
3-Butenamide, 3-amino-4,4-dicyano- 110568-63-3 C6H6N4O
3-Buten-2-one, 3-amino-4-(methylsulfonyl)- 115975-54-7 C5H9NO3S
1-Buten-2-amine, 1-(5,6-dihydro-4H-1,3-oxazin-2-yl)- 147411-54-9 C8H14N2O
3-Butenoic acid, 2-[(ethoxycarbonyl)amino]-, methyl ester 135630-84-1 C8H13NO4
2-Butenoic acid, 2-(acetylamino)-3-hydroxy-, ethyl ester 201298-34-2 C8H13NO4
2-Butene-1,4-dione, 2-bromo-3-hydroxy- (4CI) 855234-75-2 C4H3BrO3
3-Buten-2-one, 3-ethoxy-1,1,1-trifluoro- 194240-78-3 C6H7F3O2
3-Butenoic acid, 3,4-dichloro-2-hydroxy- 854470-82-9 C4H4Cl2O3
3-Buten-2-one, 1,1,1-trifluoro-4-(methylthio)- 532977-10-9 C5H5F3OS
2-Butenoic acid, 3-chloro-2-hydroxy-4-oxo- 687127-12-4 C4H3ClO4
1-Buten-2-ol, 1-bromo-3-methyl- 82687-37-4 C5H9BrO
3-Butenoic acid, 2-(acetylamino)-2-methyl-, ethyl ester 959273-45-1 C9H15NO3
2-Butenoic acid, 4,4,4-trifluoro-3-hydroxy-, methyl ester 178380-97-7 C5H5F3O3
3-Buten-2-one, 3-(4-morpholinyl)- 119490-02-7 C8H13NO2
3-Butenethioamide, N-butyl-N-methyl- 867191-93-3 C9H17NS
2-Buten-1-one, 2-amino-1-phenyl- 115975-53-6 C10H11NO
2-Butenamide, N-(2,2-dimethyl-1-oxopropyl)-2-methyl-, (2E)- 613672-37-0 C10H17NO2
3-Butenoic acid, 3-amino-2-(1-methylethyl)-, methyl ester 780771-49-5 C8H15NO2
3-Butenamide, 2-phenyl- (6CI) 103205-11-4 C10H11NO
3-Buten-2-one, 1,1,1-trifluoro-4-methoxy-3-methyl- 219986-54-6 C6H7F3O2
[2-(but-3-en-1-yloxy)-5-nitrophenyl]methanol
1-(but-2-en-1-yl)-5-chloro-2,3-dihydro-1H-indole-2,3-dione
[3-(but-2-en-1-yloxy)phenyl]methanol
2-Butenedioic acid, 2,3-bis[(trimethylsilyl)oxy]-, bis(trimethylsilyl) ester, (Z)- 55887-89-3
2-Butenenitrile,2-(diethylamino)-,(2Z)-(9CI) 412907-39-2 C8H14N2
2-Butenedioic acid (2Z)-, polymer with (2Z)-4-amino-4-oxo-2-butenoic acid and ethenylbenzene, ammonium salt 68171-59-5
2-Butenedioic acid (Z)-, dibutyl ester, polymer with 2-methylpropyl2-methyl-2-propenoate 62851-73-4
2-Butenal,3-(3-pyridinyl)-(9CI) 184419-65-6 C9H9NO
3-Buten-2-ol,2-methyl-,phenylcarbamate(9CI) 40143-97-3 C12H15NO2
3-Buten-2-one, 3-methyl-4-[(1-methylethyl)amino]-, (E)- (9CI) 89029-69-6 C8H15NO
3-Buten-2-one, 4-hydroxy-4-methoxy-, (3E)- (9CI) 63289-97-4 C5H8O3
Fumaryl chloride 627-63-4 C4H2Cl2O2
4-Phenyl-1-butene 768-56-9 C10H12
2-butenyl 4-[4-(benzyloxy)-3-methoxyphenyl]-6-methyl-2-oxo-1,2,3,4-tetrahydro-5-pyrimidinecarboxylate C24H26N2O5
1-(2-butenoyl)-6-methoxy-2,2,4-trimethyl-1,2-dihydroquinoline C17H21NO2
3-Butenamide, N-(6-amino-1,2,3,4-tetrahydro-1,3-dimethyl-2,4-dioxo-5-pyrimidinyl)- 99171-67-2 C10H14N4O3
2-Butenoic acid, 3-amino-2-ethyl-, ethyl ester 55788-92-6 C8H15NO2
3-Buten-2-one, 4-ethoxy-1,1-difluoro- 375856-23-8 C6H8F2O2
2-Buten-2-ol, 3-bromo- 82687-35-2 C4H7BrO
2-Butenoic acid, 2-(1-hydrazonoethyl)-, hydrazide (9CI) 68761-37-5 C6H12N4O
3-Butenoic acid, 2-[(ethoxycarbonyl)amino]- 850144-92-2 C7H11NO4
3-Butenoic acid, 2-[(ethoxycarbonyl)amino]-3-methyl- 850144-93-3 C8H13NO4
2-Butenoic acid, 2,4-difluoro-3-hydroxy-, ethyl ester 698336-27-5 C6H8F2O3
3-Butenamide, N,N-diethylthio- (8CI) 31333-56-9 C8H15NS
3-Butenamide, N,N-diethyl-3-methylthio- (8CI) 31333-58-1 C9H17NS
3-Butenoic acid, 3-chloro-2-hydroxy-, ethyl ester 18418-17-2 C6H9ClO3
3-Buten-2-one, 1-chloro-3,4,4-trifluoro- 110784-75-3 C4H2ClF3O
2-Buten-1-one, 2-methyl-1-(3-methyl-2-oxiranyl)- 872308-04-8 C8H12O2
3-Buten-1-one, 1-(2-thiazolyl)- 235776-84-8 C7H7NOS
2-Butenoic acid, 3-amino-4-methoxy-, ethyl ester 79534-96-6 C7H13NO3
1-Buten-1-amine, 3-imino-2-phenyl- 81187-34-0 C10H12N2
2-Butenamide, N-(4,5-dihydro-1H-imidazol-2-yl)-3-methyl- 343588-19-2 C8H13N3O
3-Buten-2-one, 3-chloro-4-(1-methylethoxy)- 948041-67-6 C7H11ClO2
3-Buten-2-one, 1-fluoro-4-phenyl- 719279-48-8 C10H9FO
2-Butenoic acid, 4-(1H-indol-6-ylamino)-4-oxo- 939250-30-3 C12H10N2O3
2-Butenoic acid, 3-[(ethoxycarbonyl)amino]-, methyl ester 152900-47-5 C8H13NO4
3-Butenenitrile, 3-bromo-2-oxo- 157196-76-4 C4H2BrNO
3-Buten-2-one, 1-(1H-imidazol-2-yl)- 910564-51-1 C7H8N2O
3-Buten-2-one, 4-amino-3-bromo- 13839-12-8 C4H6BrNO
2-Butenoic acid, 3-amino-2-(1-methylethyl)-, methyl ester 893055-14-6 C8H15NO2
3-Buten-2-ol, 3-amino-4-phenyl- 88690-87-3 C10H13NO
3-Buten-2-one,4-(2-methyl-1H-benzimidazol-1-yl)-,(3E)-(9CI) 218436-89-6 C12H12N2O
2-Butenoicacid,2-hydroxy-4-oxo-4-(2-thienyl)-(9CI) 488111-17-7 C8H6O4S
3-Buten-2-one, 4-(3-fluoro-2-hydroxyphenyl)- 408504-74-5 C10H9FO2
3-Buten-1-one, 1-(3-methyloxiranyl)- (9CI) 440632-83-7 C7H10O2
2-Butenethioamide, N,N-diethyl-3-methyl- 31333-57-0 C9H17NS
2-Butenylamine, N,N,2-trimethyl-1-propyl- (7CI) 875835-87-3 C10H21N
3-Buten-2-one, 1-bromo-3-methyl- 73188-30-4 C5H7BrO
3-(3-butenyl)-2,4,4-trimethylcyclohex-2-en-1-one 67401-27-8 C13H20O
2-Butenoicacid,4-(3-methyl-1-piperidinyl)-4-oxo-(9CI) 573995-52-5 C10H15NO3
2-Butenenitrile,3-(4-fluorophenyl)-,(Z)-(9CI) 144477-79-2 C10H8FN
2-[1-(but-2-en-1-yl)-1H-indol-3-yl]acetic acid
Crotonic anhydride 623-68-7 C8H10O3
Dioctyl maleate 2915-53-9 C20H36O4
Fumaric acid 110-17-8 C4H4O4
Crotonic acid 3724-65-0 C4H6O2
Dinocap 39300-45-3 C18H24N2O6
2-Butene-1,4-diol 110-64-5 C4H8O2
3-Buten-2-one, 1-(2-methyl-1,3-dioxolan-2-yl)- 127600-04-8 C8H12O3
3-Buten-2-one, 4-(ethylamino)-1,1,1-trifluoro- 538308-78-0 C6H8F3NO
2-Butenoic acid, 2-(acetylamino)-4-methoxy-, methyl ester 925932-14-5 C8H13NO4
3-Butenenitrile 109-75-1 C4H5N
2-Butene-1,4-diol 6117-80-2 C4H8O2
2-butenal (4-{4-nitrophenyl}-1,3-thiazol-2-yl)hydrazone C13H12N4O2S
3-Butenoic acid, 2-amino-3-(methoxymethyl)-, methyl ester 108412-22-2 C7H13NO3
2-Butenoic acid, 4,4,4-trifluoro-3-hydroxy- 86302-40-1 C4H3F3O3
2-Butenoic acid, 3-[(2-methyl-1-oxopropyl)amino]-, methyl ester 461686-82-8 C9H15NO3
2-Butenoic acid, 2-chloro-3-hydroxy-, ethyl ester 1522-38-9 C6H9ClO3
3-Butenal, 3,4-dichloro-2-oxo- 69188-26-7 C4H2Cl2O2
2-Butenoic acid, 4-chloro-3-hydroxy-, methyl ester, radical ion(1+), (2Z)- 935744-78-8 C5H7ClO3
2-Buten-1-one, 1-(2,4-dichlorophenyl)-2-(1H-imidazol-1-yl)- 82013-33-0 C13H10Cl2N2O
2-Butenamide, 2-cyano-4-cyclopropyl- 143420-54-6 C8H10N2O
2-Butenedinitrile, 2-amino-3-[(1-cyanoethyl)amino]- 339364-49-7 C7H7N5
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