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中文名称 英文名称 CAS号 化学式 结构式图片
—— 4,4-dimethyl-17β-propionyloxy-androst-5-en-3-one 6599-59-3 C24H36O3
4,4-dimethyl-17β-propionyloxy-androst-5-en-3-one
—— 4-[5-(tert-butyl-dimethyl-silanyloxy)-7-vinyl-benzooxazol-2-yl]-2-fluoro-phenol 1030598-00-5 C21H24FNO3Si
4-[5-(tert-butyl-dimethyl-silanyloxy)-7-vinyl-benzooxazol-2-yl]-2-fluoro-phenol
—— 4,5-dimethyl-2-propyl-5,6-dihydro-2H-[1,3]thiazine 103029-58-9 C9H17NS
4,5-dimethyl-2-propyl-5,6-dihydro-2H-[1,3]thiazine
—— 4-chloro-1,1,1-trifluoro-2-trifluoromethyl-pent-4-en-2-ol 15735-54-3 C6H5ClF6O
4-chloro-1,1,1-trifluoro-2-trifluoromethyl-pent-4-en-2-ol
—— 4-{2-[(4aS,5S)-1-(4-fluorophenyl)-5-hydroxy-4a-methyl-1,4,4a,5,6,7-hexahydrocyclopenta[f]indazol-5-yl]ethyl}benzoic acid 1352240-34-6 C26H25FN2O3
4-{2-[(4aS,5S)-1-(4-fluorophenyl)-5-hydroxy-4a-methyl-1,4,4a,5,6,7-hexahydrocyclopenta[f]indazol-5-yl]ethyl}benzoic acid
—— 4-(1-(3,5,5,8,8-pentamethyl-5,6,7,8-tetrahydronaphthalen-2-yl)vinyl)benzaldehyde oxime 1376615-26-7 C24H29NO
4-(1-(3,5,5,8,8-pentamethyl-5,6,7,8-tetrahydronaphthalen-2-yl)vinyl)benzaldehyde oxime
—— 4-hydroxy-3-(2-methyl-6-trifluoromethylpyridine-3-carbonyl)-bicyclo[3.2.1]oct-3-en-2-one 261634-96-2 C16H14F3NO3
4-hydroxy-3-(2-methyl-6-trifluoromethylpyridine-3-carbonyl)-bicyclo[3.2.1]oct-3-en-2-one
—— 4-(1,8-dimethoxy-9,10-dioxoanthracen-2-yl)butanenitrile 85313-92-4 C20H17NO4
4-(1,8-dimethoxy-9,10-dioxoanthracen-2-yl)butanenitrile
—— 4-(4-methoxybenzyl)-4-trifluoromethyl-4,5,6,7-tetrahydro-3H-imidazo[4,5-c]pyridine 1190130-56-3 C15H16F3N3O
4-(4-methoxybenzyl)-4-trifluoromethyl-4,5,6,7-tetrahydro-3H-imidazo[4,5-c]pyridine
—— 4-chloro-1-hydroxy-phthalazine-6-carboxylic acid (3-trifluoromethyl-phenyl)-amide sodium salt 1028336-23-3 C16H8ClF3N3O2*Na
4-chloro-1-hydroxy-phthalazine-6-carboxylic acid (3-trifluoromethyl-phenyl)-amide sodium salt
—— 4,5α-epoxy-7-(1-hydroxyethyl)-3-methoxy-17-methyl-6,7-didehydromorphinan 89178-24-5 C20H25NO3
4,5α-epoxy-7-(1-hydroxyethyl)-3-methoxy-17-methyl-6,7-didehydromorphinan
—— 4,5-Dihydroxyspiro<anthracen-9(10H),2'(3'H)-furan>-5',10(4'H)-dion 90494-96-5 C17H12O5
4,5-Dihydroxyspiro<anthracen-9(10H),2'(3'H)-furan>-5',10(4'H)-dion
—— 4-(furan-2-yl)-1-phenylazetidin-2-one 86458-86-8 C13H11NO2
4-(furan-2-yl)-1-phenylazetidin-2-one
—— 4-androstene-17β-propionyloxy-3-spiro-2'-(1',3'-dioxolane) 81240-03-1 C24H36O4
4-androstene-17β-propionyloxy-3-spiro-2'-(1',3'-dioxolane)
—— 4,4-dimethyl-2-(1-p-tolylcyclopentyl)oxazoline 874895-85-9 C17H23NO
4,4-dimethyl-2-(1-p-tolylcyclopentyl)oxazoline
—— 4-(2-acetoxyethyl)-3-chloro-1,3-dihydro-2H-indolin-2-one 168476-57-1 C12H12ClNO3
4-(2-acetoxyethyl)-3-chloro-1,3-dihydro-2H-indolin-2-one
—— 4-O-acetyl-1,5-anhydro-2-O-benzoyl-L-arabino-pentitol 123077-12-3 C14H16O6
4-O-acetyl-1,5-anhydro-2-O-benzoyl-L-arabino-pentitol
—— 4,4,4-Trifluoro-2-(2-methyl-aziridin-1-yl)-3-trifluoromethyl-butyric acid ethyl ester 97800-15-2 C10H13F6NO2
4,4,4-Trifluoro-2-(2-methyl-aziridin-1-yl)-3-trifluoromethyl-butyric acid ethyl ester
—— 4-Hydroxy-10-imino-5-methoxymethoxy-10H-anthracen-9-one 577975-52-1 C16H13NO4
4-Hydroxy-10-imino-5-methoxymethoxy-10H-anthracen-9-one
—— 4-androsten-17β-(1,1-dimethylethoxy)-3-one 1852-99-9 C23H36O2
4-androsten-17β-(1,1-dimethylethoxy)-3-one
—— 4-[3-ethyl-6-(3-fluoro-4-hydroxyphenyl)-1H-pyrazolo[3,4-b]pyridine-4-carbonyl]piperazine-1-carboxylic acid tert-butyl ester 1429171-59-4 C24H28FN5O4
4-[3-ethyl-6-(3-fluoro-4-hydroxyphenyl)-1H-pyrazolo[3,4-b]pyridine-4-carbonyl]piperazine-1-carboxylic acid tert-butyl ester
—— 4-chloro-2-(6-methyl-pyridin-2-yl)-quinazoline 733806-69-4 C14H10ClN3
4-chloro-2-(6-methyl-pyridin-2-yl)-quinazoline
—— 4-Oxo-pentanoic acid 2-(2-chloro-4H-benzo[1,3,2]dioxaphosphinin-8-yl)-ethyl ester 722539-48-2 C14H16ClO5P
4-Oxo-pentanoic acid 2-(2-chloro-4H-benzo[1,3,2]dioxaphosphinin-8-yl)-ethyl ester
—— 4-Phenyl-19-thia-3,4-diaza-tricyclo[14.2.1.0<sup>2,6</sup>]nonadeca-1(18),2(6),16-trien-5-one 75446-66-1 C22H26N2OS
4-Phenyl-19-thia-3,4-diaza-tricyclo[14.2.1.0<sup>2,6</sup>]nonadeca-1(18),2(6),16-trien-5-one
—— {4-[(E)-3-(4-Hydroxy-phenyl)-acryloylamino]-butyl}-{3-[(E)-3-(4-hydroxy-phenyl)-acryloylamino]-propyl}-carbamic acid tert-butyl ester 177085-35-7 C30H39N3O6
{4-[(E)-3-(4-Hydroxy-phenyl)-acryloylamino]-butyl}-{3-[(E)-3-(4-hydroxy-phenyl)-acryloylamino]-propyl}-carbamic acid tert-butyl ester
—— 4-[6-chloro-3-iodo-1-(tetrahydro-pyran-2-yl)-1H-pyrazolo[3,4-b]pyridine-4-carbonyl]-piperazine-1-carboxylic acid tert-butyl ester 1426918-25-3 C21H27ClIN5O4
4-[6-chloro-3-iodo-1-(tetrahydro-pyran-2-yl)-1H-pyrazolo[3,4-b]pyridine-4-carbonyl]-piperazine-1-carboxylic acid tert-butyl ester
—— 4-((2-hydroxybenzylidene)amino)-N-(pyridin-2-yl)benzenesulfonamide 95107-48-5 C18H15N3O3S
4-((2-hydroxybenzylidene)amino)-N-(pyridin-2-yl)benzenesulfonamide
—— 4-methylbenzenethiocarbonyl N,N-diethylaminethiocarbonyl sulphide 129256-85-5 C13H17NS3
4-methylbenzenethiocarbonyl N,N-diethylaminethiocarbonyl sulphide
—— 4-((2S,3R,4S,5S)-3,4,5-Trihydroxy-tetrahydro-thiopyran-2-ylsulfanyl)-thiobenzamide 201546-84-1 C12H15NO3S3
4-((2S,3R,4S,5S)-3,4,5-Trihydroxy-tetrahydro-thiopyran-2-ylsulfanyl)-thiobenzamide
—— 4-bromo-17β-propionyloxy-androst-4-en-3-one 2162-45-0 C22H31BrO3
4-bromo-17β-propionyloxy-androst-4-en-3-one
—— 4-methyl-N'-(16-oxooxacyclohexadecan-5-ylidene)benzenesulfonohydrazide 73480-78-1 C22H34N2O4S
4-methyl-N'-(16-oxooxacyclohexadecan-5-ylidene)benzenesulfonohydrazide
—— (4R,4aR,7R,7aR,12bS)-7-hydroxy-9-methoxy-3-methyl-1,4,4a,5,6,7,7a,13-octahydro-4,12-methanobenzofuro[3,2-e]isoquinolin-2-one 1422971-71-8 C18H21NO4
(4R,4aR,7R,7aR,12bS)-7-hydroxy-9-methoxy-3-methyl-1,4,4a,5,6,7,7a,13-octahydro-4,12-methanobenzofuro[3,2-e]isoquinolin-2-one
—— 4-<i>sec</i>-butyl-2,2-bis-(chloro-difluoro-methyl)-oxazolidin-5-one 73997-80-5 C9H11Cl2F4NO2
4-<i>sec</i>-butyl-2,2-bis-(chloro-difluoro-methyl)-oxazolidin-5-one
—— 4'-Methyl-N-methyl-2-(triphenylphosphoranyliden)acetanilid 102235-96-1 C28H26NOP
4'-Methyl-N-methyl-2-(triphenylphosphoranyliden)acetanilid
—— (4R,5R)-2,2-dibutyl-4,5-diphenyl-1,3,2-dioxastannolane 150025-54-0 C22H30O2Sn
(4R,5R)-2,2-dibutyl-4,5-diphenyl-1,3,2-dioxastannolane
—— (-)-(4aS,7R,8aR)-7-(tert-butyldimethylsilyl)oxy-5-methylene-8a-methyl-decahydronaphthalen-2-one 89949-94-0 C18H32O2Si
(-)-(4aS,7R,8aR)-7-(tert-butyldimethylsilyl)oxy-5-methylene-8a-methyl-decahydronaphthalen-2-one
—— (4-nitrophenyl) 2-(4-oxo-2-phenyl-1,3-thiazolidin-3-yl)acetate 852835-12-2 C17H14N2O5S
(4-nitrophenyl) 2-(4-oxo-2-phenyl-1,3-thiazolidin-3-yl)acetate
—— <4S-(4α,12aα)>-4-(dimethylamino)-9-nitro-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide 120793-45-5 C22H23N3O10
<4S-(4α,12aα)>-4-(dimethylamino)-9-nitro-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide
—— (4-fluoro-2-pyridin-2-yl-benzyl)-carbamic acid tert-butyl ester 870063-00-6 C17H19FN2O2
(4-fluoro-2-pyridin-2-yl-benzyl)-carbamic acid tert-butyl ester
—— 4-methyl-3-[2-methyl-4-(3-phenyl-ureido)-pyrimidin-5-ylmethyl]-5-(2-phenylcarbamoyloxy-ethyl)-thiazolium; chloride 21346-78-1 C26H27N6O3S*Cl
4-methyl-3-[2-methyl-4-(3-phenyl-ureido)-pyrimidin-5-ylmethyl]-5-(2-phenylcarbamoyloxy-ethyl)-thiazolium; chloride
—— (4E,15E)-5,6,16,17-tetraethyl-3,3,4,14,14,15-hexamethyl-2,13-dioxa-7,18-diaza-3,14-disila-6,17-diboratricyclo[17.3.1.18,12]tetracosa-1(22),4,8(24),9,11,15,19(23),20-octaene 129390-09-6 C30H48B2N2O2Si2
(4E,15E)-5,6,16,17-tetraethyl-3,3,4,14,14,15-hexamethyl-2,13-dioxa-7,18-diaza-3,14-disila-6,17-diboratricyclo[17.3.1.18,12]tetracosa-1(22),4,8(24),9,11,15,19(23),20-octaene
—— 4-hydrazinyl-2,7-dimethyl-1,8-naphthyridine 1439401-01-0 C10H12N4
4-hydrazinyl-2,7-dimethyl-1,8-naphthyridine
—— 4(5)-[2-(4-azido-2-nitroanilino)ethyl]imidazole hydrochloride 79412-26-3 C11H11N7O2*ClH
4(5)-[2-(4-azido-2-nitroanilino)ethyl]imidazole hydrochloride
—— 4'-Methoxy-N-methyl-2-(triphenylphosphoranyliden)acetanilid 102235-95-0 C28H26NO2P
4'-Methoxy-N-methyl-2-(triphenylphosphoranyliden)acetanilid
—— 4-((3S,5R,8R,9S,10S,13R,14S,17R)-3-(ethoxy((3S,4S,5S)-3,4,5-trihydroxytetrahydro-2H-pyran-2-yl)amino)-14-hydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)furan-2(5H)-one 1012079-92-3 C30H47NO8
4-((3S,5R,8R,9S,10S,13R,14S,17R)-3-(ethoxy((3S,4S,5S)-3,4,5-trihydroxytetrahydro-2H-pyran-2-yl)amino)-14-hydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)furan-2(5H)-one
—— 4-(trichloromethyl)-4-(4-nitrophenyl)-2-oxetanone 96165-36-5 C10H6Cl3NO4
4-(trichloromethyl)-4-(4-nitrophenyl)-2-oxetanone
—— 4,5-dimethyl-2-phenyloxazole 3-oxide compound with 1,1,1,3,3,3-hexafluoropropane-2,2-diol (1:1) 1266332-46-0 C3H2F6O2*C11H11NO2
4,5-dimethyl-2-phenyloxazole 3-oxide compound with 1,1,1,3,3,3-hexafluoropropane-2,2-diol (1:1)
—— 4-amino-1-((2R,3R,4R,5R)-5-(((tert-butyldimethylsilyl)oxy)methyl)-3-fluoro-4-hydroxy-3-methyltetrahydrofuran-2-yl)pyrimidin-2(1H)-one 1364934-23-5 C16H28FN3O4Si
4-amino-1-((2R,3R,4R,5R)-5-(((tert-butyldimethylsilyl)oxy)methyl)-3-fluoro-4-hydroxy-3-methyltetrahydrofuran-2-yl)pyrimidin-2(1H)-one
—— 4-(2-hydroxy-1-methylethyl)-N-methyl-3-nitro-N-phenylbenzenecarboxamide 702643-16-1 C17H18N2O4
4-(2-hydroxy-1-methylethyl)-N-methyl-3-nitro-N-phenylbenzenecarboxamide
—— 4-(1,3,2-benzodioxaphosphol-2-yloxy)-4-methylpentan-2-one 1232839-42-7 C12H15O4P
4-(1,3,2-benzodioxaphosphol-2-yloxy)-4-methylpentan-2-one