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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 4-[ethoxy(methyl)phosphoryl]-3-methylbut-3-en-2-one 67683-12-9 C8H15O3P
    4-[ethoxy(methyl)phosphoryl]-3-methylbut-3-en-2-one
    —— 4-(4-Methyl-2-nitro-phenylazo)-phenol 126274-56-4 C13H11N3O3
    4-(4-Methyl-2-nitro-phenylazo)-phenol
    —— 4-bromo-2-[2-{4-(diethylamino)phenyl}2-oxoethyl]-5-{(1R,2R,3R,5S)-2,6,6-trimethylbicyclo[3.1.1]hept-3-ylamino}-pyridazine-3(2H)-one 1149581-07-6 C26H35BrN4O2
    4-bromo-2-[2-{4-(diethylamino)phenyl}2-oxoethyl]-5-{(1R,2R,3R,5S)-2,6,6-trimethylbicyclo[3.1.1]hept-3-ylamino}-pyridazine-3(2H)-one
    —— 4-(4-Oxooxetan-2-yl)benzonitrile 85005-07-8 C10H7NO2
    4-(4-Oxooxetan-2-yl)benzonitrile
    —— 4-dimethylamino-4-ethoxycarbonyl-1-thia-3-aza-2-C6H5-butadiene 87108-97-2 C13H16N2O2S
    4-dimethylamino-4-ethoxycarbonyl-1-thia-3-aza-2-C6H5-butadiene
    —— 4,5-dichloro-2,4,5-trimethyl-[1,2]oxaphospholane 2-oxide 67683-09-4 C6H11Cl2O2P
    4,5-dichloro-2,4,5-trimethyl-[1,2]oxaphospholane 2-oxide
    —— 4-((2R,3R,4S,5R)-3,4,5-Triacetoxy-tetrahydro-pyran-2-ylamino)-benzoic acid ethyl ester 84851-65-0 C20H25NO9
    4-((2R,3R,4S,5R)-3,4,5-Triacetoxy-tetrahydro-pyran-2-ylamino)-benzoic acid ethyl ester
    —— 4,4'-(((perfluoropropane-2,2-diyl)bis(4,1-phenylene))bis(oxy))bis(3-(trifluoromethyl)benzaldehyde) 1206480-23-0 C31H16F12O4
    4,4'-(((perfluoropropane-2,2-diyl)bis(4,1-phenylene))bis(oxy))bis(3-(trifluoromethyl)benzaldehyde)
    —— 4-N-[3-[3-[(4-amino-4-methylpentan-2-yl)amino]propyl-methylamino]propyl]-2-methylpentane-2,4-diamine 75813-05-7 C19H45N5
    4-N-[3-[3-[(4-amino-4-methylpentan-2-yl)amino]propyl-methylamino]propyl]-2-methylpentane-2,4-diamine
    —— (4α,5β,17β)-4,5-Dideuterio-17-hydroxy-3-androstanone 124267-86-3 C19H30O2
    (4α,5β,17β)-4,5-Dideuterio-17-hydroxy-3-androstanone
    —— (4R,4aR,7aR,12bS)-3-(10,11-dihydro-5H-dibenzo[a,d][7]annulen-5-yl)-9-methoxy-2,3,4,4a,5,6-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-7(7aH)-one 151726-52-2 C32H31NO3
    (4R,4aR,7aR,12bS)-3-(10,11-dihydro-5H-dibenzo[a,d][7]annulen-5-yl)-9-methoxy-2,3,4,4a,5,6-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-7(7aH)-one
    —— 4-Benzyl-6-(5,6,7,8-tetrahydro-naphthalen-2-yl)-2H-pyridazin-3-one 178467-40-8 C21H20N2O
    4-Benzyl-6-(5,6,7,8-tetrahydro-naphthalen-2-yl)-2H-pyridazin-3-one
    —— 4,4,4-Trifluoro-2-(2-methyl-aziridin-1-yl)-3-trifluoromethyl-butyric acid methyl ester 97800-13-0 C9H11F6NO2
    4,4,4-Trifluoro-2-(2-methyl-aziridin-1-yl)-3-trifluoromethyl-butyric acid methyl ester
    —— 4-Hydroxy-6-(1,2,2,2-tetrafluoro-1-trifluoromethyl-ethyl)-5-(1,2,2,2-tetrafluoro-1-trifluoromethyl-ethylsulfanyl)-pyran-2-one 75782-11-5 C11H2F14O3S
    4-Hydroxy-6-(1,2,2,2-tetrafluoro-1-trifluoromethyl-ethyl)-5-(1,2,2,2-tetrafluoro-1-trifluoromethyl-ethylsulfanyl)-pyran-2-one
    —— 4,5α-epoxy-3,6,6-trimethoxy-morphin-7-ene-17-carbonitrile 15200-05-2 C20H22N2O4
    4,5α-epoxy-3,6,6-trimethoxy-morphin-7-ene-17-carbonitrile
    —— 4-phenylbutanoic peroxyanhydride 52565-60-3 C20H22O4
    4-phenylbutanoic peroxyanhydride
    —— (4aS,6aR,7S,9S,11aR,11bS)-7-hydroxy-4,4,9,11b-tetramethyldodecahydro-6a,9-methanocyclohepta[a]naphthalen-6(2H)-one 107928-41-6 C20H32O2
    (4aS,6aR,7S,9S,11aR,11bS)-7-hydroxy-4,4,9,11b-tetramethyldodecahydro-6a,9-methanocyclohepta[a]naphthalen-6(2H)-one
    —— 4',5'-Dihydro-4,5-dihydroxy-5'-methoxy-spiro<anthracene-9(10H),2'(3'H)-furan>-10-one 98700-30-2 C18H16O5
    4',5'-Dihydro-4,5-dihydroxy-5'-methoxy-spiro<anthracene-9(10H),2'(3'H)-furan>-10-one
    —— (4bS)-3,4-dimethoxy-11-methyl-8,8a,9,10-tetrahydro-7H-9,4b-(epiminoethano)phenanthren-12-one 1422971-70-7 C19H23NO3
    (4bS)-3,4-dimethoxy-11-methyl-8,8a,9,10-tetrahydro-7H-9,4b-(epiminoethano)phenanthren-12-one
    —— 4-(4-Ethoxycarbonyl-phenyliminomethyl)-diphenylether 3782-83-0 C22H19NO3
    4-(4-Ethoxycarbonyl-phenyliminomethyl)-diphenylether
    —— (4bS,9R)-3-methoxy-11-methyl-6-oxo-6,7,8,8a,9,10-hexahydro-5H-9,4b- (epiminoethano)phenanthren-4-yl trifluoromethanesulfonate 1227681-13-1 C19H22F3NO5S
    (4bS,9R)-3-methoxy-11-methyl-6-oxo-6,7,8,8a,9,10-hexahydro-5H-9,4b- (epiminoethano)phenanthren-4-yl trifluoromethanesulfonate
    —— 4-methyl-5-oxo-2-phenyl-hexanenitrile 91956-53-5 C13H15NO
    4-methyl-5-oxo-2-phenyl-hexanenitrile
    —— 4-((tert-butoxycarbonylamino)(phenyl)methyl)phenylphosphinic acid 1428526-84-4 C18H22NO4P
    4-((tert-butoxycarbonylamino)(phenyl)methyl)phenylphosphinic acid
    —— (4aS,6aR,6bR,8aR,12aR,12bR,14bS)-2,2,6b,9,9,12a-Hexamethyl-10-oxo-6a-[(E)-(3-phenyl-acryloyl)oxymethyl]-1,3,4,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,13,14b-octadecahydro-2H-picene-4a-carboxylic acid 145039-11-8 C39H52O5
    (4aS,6aR,6bR,8aR,12aR,12bR,14bS)-2,2,6b,9,9,12a-Hexamethyl-10-oxo-6a-[(E)-(3-phenyl-acryloyl)oxymethyl]-1,3,4,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,13,14b-octadecahydro-2H-picene-4a-carboxylic acid
    —— 4-(((3-chloro-1,4-dioxo-1,4-dihydronaphthalen-2-yl)amino)methyl)-N-(pyridin-4-yl)benzamide 2069950-15-6 C23H16ClN3O3
    4-(((3-chloro-1,4-dioxo-1,4-dihydronaphthalen-2-yl)amino)methyl)-N-(pyridin-4-yl)benzamide
    —— 4-(1-oxo-1,2,3,4-tetrahydro-[2]naphthyl)-butyric acid methyl ester 7442-51-5 C15H18O3
    4-(1-oxo-1,2,3,4-tetrahydro-[2]naphthyl)-butyric acid methyl ester
    —— [4-[2-(propanoylamino)ethyl]-2-propanoyloxyphenyl] propanoate 67191-58-6 C17H23NO5
    [4-[2-(propanoylamino)ethyl]-2-propanoyloxyphenyl] propanoate
    —— 4-(1,2-Diacetoxytridecyl)-5-hydroxy-2(5H)-furanone 130163-13-2 C21H34O7
    4-(1,2-Diacetoxytridecyl)-5-hydroxy-2(5H)-furanone
    —— 4,4-dimethyl-2-(2,6-diethylphenyl)oxazoline 66464-27-5 C15H21NO
    4,4-dimethyl-2-(2,6-diethylphenyl)oxazoline
    —— 4-methylpyridine zinc tetraphenylporphyrin 24315-61-5 C50H35N5Zn
    4-methylpyridine zinc tetraphenylporphyrin
    —— (4R,7S,8r)-8-fluoro-4,5,6,7-tetrahydro-4,7-methanoisobenzofuran-1,3-dione 1430806-45-3 C9H7FO3
    (4R,7S,8r)-8-fluoro-4,5,6,7-tetrahydro-4,7-methanoisobenzofuran-1,3-dione
    —— 4-(4-i-propylphenyl)-1,5-dioxo-1,2,3,3a,4,5-hexahydropyrrolo[1,2-a]quinazoline-3a-carboxylic acid 1403986-71-9 C21H20N2O4
    4-(4-i-propylphenyl)-1,5-dioxo-1,2,3,3a,4,5-hexahydropyrrolo[1,2-a]quinazoline-3a-carboxylic acid
    —— 4,5α-epoxy-6-hydroxymethyl-3-methoxy-17-methyl-morphinan-6α(or 6β)-ol 115304-34-2 C19H25NO4
    4,5α-epoxy-6-hydroxymethyl-3-methoxy-17-methyl-morphinan-6α(or 6β)-ol
    —— ((4'aS,5'R,8'aR)-8'a-Methyl-octahydro-spiro[[1,3]dioxolane-2,2'-naphthalen]-5'-yl)-methanol 105631-42-3 C14H24O3
    ((4'aS,5'R,8'aR)-8'a-Methyl-octahydro-spiro[[1,3]dioxolane-2,2'-naphthalen]-5'-yl)-methanol
    —— 4',N-Dimethyl-1,2-propadien-1-carboxanilid 102235-71-2 C12H13NO
    4',N-Dimethyl-1,2-propadien-1-carboxanilid
    —— 4-[5-amino[1,3,4]thiadiazole-2-yl-sulphanyl]benzenesulfonamide 1076689-71-8 C8H8N4O2S3
    4-[5-amino[1,3,4]thiadiazole-2-yl-sulphanyl]benzenesulfonamide
    —— 4-[2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diazabenzo[e]azulene-9-sulfonyl]piperazine-1-carboxylic acid tert-butyl ester 1401304-08-2 C25H33N7O5S
    4-[2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diazabenzo[e]azulene-9-sulfonyl]piperazine-1-carboxylic acid tert-butyl ester
    —— 4-chloro-benzaldehyde chlorimin 112129-07-4 C7H5Cl2N
    4-chloro-benzaldehyde chlorimin
    —— 4-methyl-N'-(((4R,4'S,5S)-2,2,2',2'-tetramethyl-[4,4'-bi(1,3-dioxolan)]-5-yl)methylene)benzenesulfonohydrazide 201047-31-6 C18H26N2O6S
    4-methyl-N'-(((4R,4'S,5S)-2,2,2',2'-tetramethyl-[4,4'-bi(1,3-dioxolan)]-5-yl)methylene)benzenesulfonohydrazide
    —— 4-[2-chloro-1-(chloro-difluoro-methyl)-2,2-difluoro-1-methoxy-ethoxy]-1,1,1,2,2,3,3-heptafluoro-butane 677-97-4 C8H5Cl2F11O2
    4-[2-chloro-1-(chloro-difluoro-methyl)-2,2-difluoro-1-methoxy-ethoxy]-1,1,1,2,2,3,3-heptafluoro-butane
    —— 4-((3S,5R,8R,9S,10S,13R,14S,17R)-3-((allyloxy)((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 1012079-96-7 C31H47NO8
    4-((3S,5R,8R,9S,10S,13R,14S,17R)-3-((allyloxy)((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-(2-cyano-4-fluoro-phenyl)-piperazine-1-carboxylic acid tert-butyl ester 1028339-26-5 C16H20FN3O2
    4-(2-cyano-4-fluoro-phenyl)-piperazine-1-carboxylic acid tert-butyl ester
    —— 4,5-difluoro-6-methyl-1-(4-piperidinyl)-1,3-dihydro-2H-benzimidazol-2-one hydrochloride 932373-77-8 C13H15F2N3O*ClH
    4,5-difluoro-6-methyl-1-(4-piperidinyl)-1,3-dihydro-2H-benzimidazol-2-one hydrochloride
    —— 4-[2-(2,2,2-trifluoroacetamido)ethyl]benzenesulfonyl chloride 223253-87-0 C10H9ClF3NO3S
    4-[2-(2,2,2-trifluoroacetamido)ethyl]benzenesulfonyl chloride
    —— 4-(2-Bromo-4,5-bis-decyl-phenyl)-2-methyl-but-3-yn-2-ol 766548-95-2 C31H51BrO
    4-(2-Bromo-4,5-bis-decyl-phenyl)-2-methyl-but-3-yn-2-ol
    —— [(4S,5S)-5-{(S)-1-[(tert-butyldimethylsilyl)oxy]allyl}-2,2-dimethyl-1,3-dioxolan-4-yl]methanol 1605301-72-1 C15H30O4Si
    [(4S,5S)-5-{(S)-1-[(tert-butyldimethylsilyl)oxy]allyl}-2,2-dimethyl-1,3-dioxolan-4-yl]methanol
    —— (-)-(4S)-4-Ethyl-4-propyl-4,5-dihydro-6H-canthin-6-one 84590-22-7 C19H20N2O
    (-)-(4S)-4-Ethyl-4-propyl-4,5-dihydro-6H-canthin-6-one
    —— 4-(triethoxysilyl)benzaldehyde diethyl acetal 1256461-35-4 C17H30O5Si
    4-(triethoxysilyl)benzaldehyde diethyl acetal
    —— 4-(2-acetoxyethyl)-1,3-dihydro-2H-indolin-2-one 168476-61-7 C12H13NO3
    4-(2-acetoxyethyl)-1,3-dihydro-2H-indolin-2-one
    —— (4S,5R)-4-Methyl-5-((S)-1-methyl-3-trityloxy-propyl)-dihydro-furan-2-one 115479-81-7 C28H30O3
    (4S,5R)-4-Methyl-5-((S)-1-methyl-3-trityloxy-propyl)-dihydro-furan-2-one