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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— (4,7-dichloro-1,10-phenanthroline)bis(triphenylphosphine)copper(I) nitrate 1262033-36-2 C48H36Cl2CuN2P2*NO3
    (4,7-dichloro-1,10-phenanthroline)bis(triphenylphosphine)copper(I) nitrate
    —— 4α,5α-epoxyandrostan-17β-ol 1373116-40-5 C19H30O2
    4α,5α-epoxyandrostan-17β-ol
    —— 4-[2-(2,6-dioxopurin-8-yl)hydrazinyl]benzenesulfonic acid 75056-38-1 C11H8N6O5S
    4-[2-(2,6-dioxopurin-8-yl)hydrazinyl]benzenesulfonic acid
    —— 4-Bromobutyl 2,5-dihydroxybenzoate 1453215-98-9 C11H13BrO4
    4-Bromobutyl 2,5-dihydroxybenzoate
    —— (4-(((R)-1-carboxy-3-(methylthio)propyl)amino)-6-(piperidin-1-yl)-1,3,5-triazin-2-yl)-L-leucine 1276116-56-3 C19H32N6O4S
    (4-(((R)-1-carboxy-3-(methylthio)propyl)amino)-6-(piperidin-1-yl)-1,3,5-triazin-2-yl)-L-leucine
    —— 4,5-dichloro-6-hydroxy-2-(2-quinoxalinyl)pyridazin-3(2H)-one 104152-33-2 C12H6Cl2N4O2
    4,5-dichloro-6-hydroxy-2-(2-quinoxalinyl)pyridazin-3(2H)-one
    —— (4S,5R)-2,2-di-tert-butyl-5-((tert-butyldimethylsilyl)oxy)-4-((E)-3-(phenylsulfonyl)allyl)-1,3,2-dioxasilinane 1338565-89-1 C26H46O5SSi2
    (4S,5R)-2,2-di-tert-butyl-5-((tert-butyldimethylsilyl)oxy)-4-((E)-3-(phenylsulfonyl)allyl)-1,3,2-dioxasilinane
    —— 4-(3,5-dimethoxyphenyl)-6-(5,6,7,8-tetrahydronaphthalen-2-yl)-2-(2',3',4'-tri-O-acetyl-β-D-xylopyranosyl-thio)-pyridine-3-carbonitrile 1158782-17-2 C35H36N2O9S
    4-(3,5-dimethoxyphenyl)-6-(5,6,7,8-tetrahydronaphthalen-2-yl)-2-(2',3',4'-tri-O-acetyl-β-D-xylopyranosyl-thio)-pyridine-3-carbonitrile
    —— (4S,5S)-4-Amino-5-benzyloxycarbonylamino-azepane-1-carboxylic acid tert-butyl ester 193354-19-7 C19H29N3O4
    (4S,5S)-4-Amino-5-benzyloxycarbonylamino-azepane-1-carboxylic acid tert-butyl ester
    —— 4,4-diethoxy-2-(octadecoxymethyl)butan-1-ol 113897-44-2 C27H56O4
    4,4-diethoxy-2-(octadecoxymethyl)butan-1-ol
    —— (4-{2-tert-butoxycarbonylamino-acetyl}-3-hydroxy-2-methyl-phenoxy)-acetic acid ethyl ester 850399-26-7 C18H25NO7
    (4-{2-tert-butoxycarbonylamino-acetyl}-3-hydroxy-2-methyl-phenoxy)-acetic acid ethyl ester
    —— 4-(1H-indol-5-yloxy)butanoic acid 1229040-99-6 C12H13NO3
    4-(1H-indol-5-yloxy)butanoic acid
    —— 4-formyloxy-butan-2-one semicarbazone 98549-51-0 C6H11N3O3
    4-formyloxy-butan-2-one semicarbazone
    —— 4-cyclopropylamino-pyrazolo[1,5-<i>a</i>]quinoxaline-3-carboxylic acid ethyl ester 62040-09-9 C16H16N4O2
    4-cyclopropylamino-pyrazolo[1,5-<i>a</i>]quinoxaline-3-carboxylic acid ethyl ester
    —— 4-methyl-7-[5-thioxo-4-(4-<i>p</i>-tolyl-piperazin-1-ylmethyl)-4,5-dihydro-[1,3,4]oxadiazol-2-ylmethoxy]-chromen-2-one 69560-80-1 C25H26N4O4S
    4-methyl-7-[5-thioxo-4-(4-<i>p</i>-tolyl-piperazin-1-ylmethyl)-4,5-dihydro-[1,3,4]oxadiazol-2-ylmethoxy]-chromen-2-one
    —— 4-Biphenyl-4-yl-4-hydroxy-N-propyl-butyramide 40884-57-9 C19H23NO2
    4-Biphenyl-4-yl-4-hydroxy-N-propyl-butyramide
    —— 4'-amino-1,1'-bis-β-<i>D</i>-ribofuranosyl-1<i>H</i>,1'<i>H</i>-[4,5']bipyrimidinyl-2,2'-dione 33602-88-9 C18H23N5O10
    4'-amino-1,1'-bis-β-<i>D</i>-ribofuranosyl-1<i>H</i>,1'<i>H</i>-[4,5']bipyrimidinyl-2,2'-dione
    —— 4-(2-Furyl)-3-methyl-5-nitropent-1-ene 131001-58-6 C10H13NO3
    4-(2-Furyl)-3-methyl-5-nitropent-1-ene
    —— (4Z)-2,6-dimethyl-6-(triethylsiloxy)-2,4-heptadiene 201276-06-4 C15H30OSi
    (4Z)-2,6-dimethyl-6-(triethylsiloxy)-2,4-heptadiene
    —— (4S<sup>*</sup>,9R<sup>*</sup>,10R<sup>*</sup>)-4-(4-Morpholinyl)-2-aza-3-oxatricyclo<8.3.0.0<sup>4,9</sup>>tridec-1-en-5-one-N-oxide 108831-87-4 C15H22N2O4
    (4S<sup>*</sup>,9R<sup>*</sup>,10R<sup>*</sup>)-4-(4-Morpholinyl)-2-aza-3-oxatricyclo<8.3.0.0<sup>4,9</sup>>tridec-1-en-5-one-N-oxide
    —— 4-[2-[2-(1,3-dioxan-2-yl)ethyl]-1,3-dithian-2-yl]butan-2-one 76159-96-1 C14H24O3S2
    4-[2-[2-(1,3-dioxan-2-yl)ethyl]-1,3-dithian-2-yl]butan-2-one
    —— 4-methoxy-3-nitro-benzenediazonium; chloride 42422-07-1 C7H6N3O3*Cl
    4-methoxy-3-nitro-benzenediazonium; chloride
    —— 4,13-Dimethyl-3,6,7,11,12,13,15,16-octahydro-2H-cyclopenta[a]phenanthrene-1,17-dione 57331-92-7 C19H22O2
    4,13-Dimethyl-3,6,7,11,12,13,15,16-octahydro-2H-cyclopenta[a]phenanthrene-1,17-dione
    —— (4R,5S,2'S)-3-(2'-acetoxyhexadecanoyl)-4-methyl-5-phenyl-1,3-oxazolidine-2-thione 220869-85-2 C28H43NO4S
    (4R,5S,2'S)-3-(2'-acetoxyhexadecanoyl)-4-methyl-5-phenyl-1,3-oxazolidine-2-thione
    —— 4,4-Dimethyl-5,6,7,8-tetrahydro-4H-chromene-2-carbonitrile 94318-64-6 C12H15NO
    4,4-Dimethyl-5,6,7,8-tetrahydro-4H-chromene-2-carbonitrile
    —— (4-chlorophenyl) 2-[4-[(2,3,4-trimethoxyphenyl)methyl]piperazin-1-yl]acetate 119929-72-5 C22H27ClN2O5
    (4-chlorophenyl) 2-[4-[(2,3,4-trimethoxyphenyl)methyl]piperazin-1-yl]acetate
    —— 4-acetamido-2-(2,4-dinitrophenyl)cyclohexanone 102745-77-7 C14H15N3O6
    4-acetamido-2-(2,4-dinitrophenyl)cyclohexanone
    —— 4-bromo-N-((1R,2S)-1-hydroxy-1-phenylpropan-2-yl)-N-methylpicolinamide 1186336-23-1 C16H17BrN2O2
    4-bromo-N-((1R,2S)-1-hydroxy-1-phenylpropan-2-yl)-N-methylpicolinamide
    —— 4-Bromo-2-{[(Z)-2,3,5,6-tetrafluoro-phenylimino]-methyl}-phenol 26672-12-8 C13H6BrF4NO
    4-Bromo-2-{[(Z)-2,3,5,6-tetrafluoro-phenylimino]-methyl}-phenol
    —— 4-Amidinohydrazono-1-p-chlorphenyl-3-methylpyrazol-5-on 27161-80-4 C11H11ClN6O
    4-Amidinohydrazono-1-p-chlorphenyl-3-methylpyrazol-5-on
    —— {4-[4-((E)-2-Biphenyl-4-yl-vinyl)-phenylazo]-3-methyl-phenyl}-dimethyl-amine 35643-30-2 C29H27N3
    {4-[4-((E)-2-Biphenyl-4-yl-vinyl)-phenylazo]-3-methyl-phenyl}-dimethyl-amine
    —— {4-[(E)-2-(4-Chloro-phenyl)-vinyl]-phenyl}-(4-methylsulfanyl-phenyl)-diazene 35706-16-2 C21H17ClN2S
    {4-[(E)-2-(4-Chloro-phenyl)-vinyl]-phenyl}-(4-methylsulfanyl-phenyl)-diazene
    —— 4-Diethylamino-3'-chlor-4'-methylazobenzol 35692-91-2 C17H20ClN3
    4-Diethylamino-3'-chlor-4'-methylazobenzol
    —— 4-O-Methylglucopyranosyluronsaeure-galactose 65620-70-4 C13H22O12
    4-O-Methylglucopyranosyluronsaeure-galactose
    —— 4-Ethanesulfinyl-2-methyl-butan-2-ol 27998-59-0 C7H16O2S
    4-Ethanesulfinyl-2-methyl-butan-2-ol
    —— 4-[5-(4-ethoxy-benzyl)-2,6-dimethyl-pyrimidin-4-yl]-morpholine 28461-75-8 C19H25N3O2
    4-[5-(4-ethoxy-benzyl)-2,6-dimethyl-pyrimidin-4-yl]-morpholine
    —— 4-butylsulfanyl-6-thioxo-3(5),6-dihydro-1<i>H</i>-[1,3,5]triazin-2-one 32683-71-9 C7H11N3OS2
    4-butylsulfanyl-6-thioxo-3(5),6-dihydro-1<i>H</i>-[1,3,5]triazin-2-one
    —— 4-indol-3-yl-6-oxo-2-phenyl-1,6-dihydro-pyridine-3-carbonitrile 34023-82-0 C20H13N3O
    4-indol-3-yl-6-oxo-2-phenyl-1,6-dihydro-pyridine-3-carbonitrile
    —— 4-(2-diacetoxymethyl-benzyl)-2-phenyl-naphtho[1,8-<i>bc</i>]furan-5-one 33188-55-5 C29H22O6
    4-(2-diacetoxymethyl-benzyl)-2-phenyl-naphtho[1,8-<i>bc</i>]furan-5-one
    —— 4-benzylidene-6-chloro-4H-benzo[d][1,3]thiazine-2-thiol 1374443-23-8 C15H10ClNS2
    4-benzylidene-6-chloro-4H-benzo[d][1,3]thiazine-2-thiol
    —— (4aS,6R,7S,8aR)-(-)-3,4,4a,5,6,7,8,8a-octahydro-6,7-(isopropylidenedioxy)-2,5,5,8a-tetramethyl-1-naphthalenemethanol 111264-64-3 C18H30O3
    (4aS,6R,7S,8aR)-(-)-3,4,4a,5,6,7,8,8a-octahydro-6,7-(isopropylidenedioxy)-2,5,5,8a-tetramethyl-1-naphthalenemethanol
    —— (4S)-3-[(2S,3S,4R)-3-hydroxy-2,4-dimethyl-5-phenylsulfanylpentanoyl]-4-propan-2-yl-1,3-oxazolidin-2-one 116805-52-8 C19H27NO4S
    (4S)-3-[(2S,3S,4R)-3-hydroxy-2,4-dimethyl-5-phenylsulfanylpentanoyl]-4-propan-2-yl-1,3-oxazolidin-2-one
    —— 4-methoxy-1-oxaspiro<4.4>non-3-en-2-one 85520-35-0 C9H12O3
    4-methoxy-1-oxaspiro<4.4>non-3-en-2-one
    —— 4-[[5-chloro-1-(4-methoxy-benzyl)-6-oxo-1,6-dihydro-pyridin-3-ylamino]-(4-cyano-phenyl)-methyl]-1-(2,4-dimethoxy-pyrimidin-5-yl)-5-isopropyl-1H-pyrazole-3-carboxylic acid ethyl ester 1441764-03-9 C36H36ClN7O6
    4-[[5-chloro-1-(4-methoxy-benzyl)-6-oxo-1,6-dihydro-pyridin-3-ylamino]-(4-cyano-phenyl)-methyl]-1-(2,4-dimethoxy-pyrimidin-5-yl)-5-isopropyl-1H-pyrazole-3-carboxylic acid ethyl ester
    —— {4-ethoxy-3-[5-fluoro-2-(3-pyridin-2-ylpropionyl)-1,2,3,4-tetrahydroisoquinolin-8-yl]phenyl}acetic acid 1445888-82-3 C27H27FN2O4
    {4-ethoxy-3-[5-fluoro-2-(3-pyridin-2-ylpropionyl)-1,2,3,4-tetrahydroisoquinolin-8-yl]phenyl}acetic acid
    —— (±)-(4-ethoxy-3-{5-fluoro-2-[2-(7-fluorochroman-4-yl)acetyl]-1,2,3,4-tetrahydroisoquinolin-8-yl}phenyl)acetic acid 1445888-54-9 C30H29F2NO5
    (±)-(4-ethoxy-3-{5-fluoro-2-[2-(7-fluorochroman-4-yl)acetyl]-1,2,3,4-tetrahydroisoquinolin-8-yl}phenyl)acetic acid
    —— 4-(4'-Benzyloxy-2'-methylbiphenyl-4-yloxymethyl)-2,2-dimethyl-1,3-dioxolane 309947-24-8 C26H28O4
    4-(4'-Benzyloxy-2'-methylbiphenyl-4-yloxymethyl)-2,2-dimethyl-1,3-dioxolane
    —— (4R,6R)-1-((7S,9R)-9-(benzyloxymethyl)-1,4,8-trioxa-spiro[4.5]dec-7-yl)-6-(triethylsilyloxy)-4-(triisopropylsilyloxy)-6-(2-(triisopropylsilyloxymethyl)-1,3-oxazol-4-yl)hexan-2-one 296795-36-3 C49H87NO9Si3
    (4R,6R)-1-((7S,9R)-9-(benzyloxymethyl)-1,4,8-trioxa-spiro[4.5]dec-7-yl)-6-(triethylsilyloxy)-4-(triisopropylsilyloxy)-6-(2-(triisopropylsilyloxymethyl)-1,3-oxazol-4-yl)hexan-2-one
    —— 4,5-Dimethyl-2-(3-oxo-3,5-dihydro-pyrazolo[4,3-c]quinolin-2-yl)-thiophene-3-carboxylic acid 104635-54-3 C17H13N3O3S
    4,5-Dimethyl-2-(3-oxo-3,5-dihydro-pyrazolo[4,3-c]quinolin-2-yl)-thiophene-3-carboxylic acid
    —— 4-[2-(4-methoxy-phenylaminomethyl)-3-(9H-carbazol-1-yloxy)-propenyl]-N-hydroxy-benzamide 878400-01-2 C30H27N3O4
    4-[2-(4-methoxy-phenylaminomethyl)-3-(9H-carbazol-1-yloxy)-propenyl]-N-hydroxy-benzamide