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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 4-methanesulfonyl-4'-methoxy-biphenyl-2-carboxylic acid methyl ester 909418-47-9 C16H16O5S
    4-methanesulfonyl-4'-methoxy-biphenyl-2-carboxylic acid methyl ester
    —— 4-(diethylamino)-4-oxobutane-2-sulfinic acid;N-ethylethanamine 119804-77-2 C4H11N*C8H17NO3S
    4-(diethylamino)-4-oxobutane-2-sulfinic acid;N-ethylethanamine
    —— 4,6-bis(diisopropylamino)<1,3,5>oxadiazin-2-one 57248-73-4 C15H28N4O2
    4,6-bis(diisopropylamino)<1,3,5>oxadiazin-2-one
    —— (4-fluoro-2-iodophenyl)acetic acid 70931-61-2 C8H6FIO2
    (4-fluoro-2-iodophenyl)acetic acid
    —— 4-{2-aza-2-[(methylthiothioxomethyl)amino]vinyl}-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one 1156535-65-7 C14H16N4OS2
    4-{2-aza-2-[(methylthiothioxomethyl)amino]vinyl}-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one
    —— 4-amino-2-ferrocenylphenol hydrochloride 868762-03-2 C16H15FeNO*ClH
    4-amino-2-ferrocenylphenol hydrochloride
    —— 4-(trifluoromethyl)benzyl 2-((3R,4S)-4-(4-amino-5-chloro-2-methoxybenzamido)-3-methoxypiperidin-1-yl)acetate 1000027-59-7 C24H27ClF3N3O5
    4-(trifluoromethyl)benzyl 2-((3R,4S)-4-(4-amino-5-chloro-2-methoxybenzamido)-3-methoxypiperidin-1-yl)acetate
    —— 4-bromophenyl (S)-3-((R)-2-benzyl-3-(tert-butoxycarbonylamino)-2-fluoropropanamido)-5-methylhexanoate 1391826-36-0 C28H36BrFN2O5
    4-bromophenyl (S)-3-((R)-2-benzyl-3-(tert-butoxycarbonylamino)-2-fluoropropanamido)-5-methylhexanoate
    —— 4-methyl-2-methylthio-4,5,8,9-tetrahydrocyclopenta<b>thiopyran 91106-76-2 C10H14S2
    4-methyl-2-methylthio-4,5,8,9-tetrahydrocyclopenta<b>thiopyran
    —— 4-methyl-7-(6-methylpyridazin-3-yl)-1-phenyl-2,3,4,5-tetrahydro-1H-benzo[e][1,4]diazepine L-tartrate 1084742-35-7 C4H6O6*C21H22N4
    4-methyl-7-(6-methylpyridazin-3-yl)-1-phenyl-2,3,4,5-tetrahydro-1H-benzo[e][1,4]diazepine L-tartrate
    —— 4-Benzo[1,3]dioxol-5-yl-5-benzyloxy-pentanenitrile 96422-67-2 C19H19NO3
    4-Benzo[1,3]dioxol-5-yl-5-benzyloxy-pentanenitrile
    —— 4-[(3-amino-6-bromo-2-pyrazinyl)methyl]phenol 625848-36-4 C11H10BrN3O
    4-[(3-amino-6-bromo-2-pyrazinyl)methyl]phenol
    —— 4-[3-fluoro-5-(1,2,3,9b-tetraaza-cyclopenta[a]naphthalen-7-ylmethoxy)-phenyl]-tetrahydro-pyran-4-carboxylic acid 944924-16-7 C22H19FN4O4
    4-[3-fluoro-5-(1,2,3,9b-tetraaza-cyclopenta[a]naphthalen-7-ylmethoxy)-phenyl]-tetrahydro-pyran-4-carboxylic acid
    —— 4-hydroxy-1-(dimethylamino)-2-methyl-2-butene 108546-21-0 C7H15NO
    4-hydroxy-1-(dimethylamino)-2-methyl-2-butene
    —— 4-amino-2-azido-3-O-benzyl-5-[(benzyloxycarbonyl)amino]-4,5-N,N'-[(benzyloxycarbonyl)carbimino]-2,4,5-deoxy-L-ribonic acid 1206111-29-6 C29H28N6O7
    4-amino-2-azido-3-O-benzyl-5-[(benzyloxycarbonyl)amino]-4,5-N,N'-[(benzyloxycarbonyl)carbimino]-2,4,5-deoxy-L-ribonic acid
    —— 4-bromo-8-methoxy-1-(methoxycarbonyl)-6-methyl-5-nordiisophora-2(7),3,5-trien-3-ol 111557-70-1 C21H29BrO4
    4-bromo-8-methoxy-1-(methoxycarbonyl)-6-methyl-5-nordiisophora-2(7),3,5-trien-3-ol
    —— 4,4,5,5,4',4',5',5'-octamethyl-2,2'-dibromomethanediyl-bis-[1,3,2]dioxaborolane 52351-49-2 C13H24B2Br2O4
    4,4,5,5,4',4',5',5'-octamethyl-2,2'-dibromomethanediyl-bis-[1,3,2]dioxaborolane
    —— 4-penten-1-yl 4-azido-3-O-benzyl-4,6-dideoxy-2-O-methyl-β-D-glucopyranosyl-(1->3)-2-O-acetyl-4-O-benzyl-α-L-rhamnopyranosyl-(1->3)-2-O-acetyl-4-O-benzyl-α-L-rhamnopyranosyl-(1->2)-3,4-di-O-benzyl-α-L-rhamnopyranoside 870543-43-4 C69H85N3O18
    4-penten-1-yl 4-azido-3-O-benzyl-4,6-dideoxy-2-O-methyl-β-D-glucopyranosyl-(1->3)-2-O-acetyl-4-O-benzyl-α-L-rhamnopyranosyl-(1->3)-2-O-acetyl-4-O-benzyl-α-L-rhamnopyranosyl-(1->2)-3,4-di-O-benzyl-α-L-rhamnopyranoside
    —— 4-hexylamino-1,5-dimethyl-2-phenyl-1,2-dihydro-pyrazol-3-one 47129-26-0 C17H25N3O
    4-hexylamino-1,5-dimethyl-2-phenyl-1,2-dihydro-pyrazol-3-one
    —— 4-[(2,4-difluorophenyl)amino]-7-methoxy-6-(3-piperidin-1-ylpropyl)quinoline-3-carboxamide 1024952-28-0 C25H28F2N4O2
    4-[(2,4-difluorophenyl)amino]-7-methoxy-6-(3-piperidin-1-ylpropyl)quinoline-3-carboxamide
    —— 4-((2-benzylthio)phenyl)-1-methyl-4H-1,2,4-triazol-1-ium methyl sulfate 1245737-25-0 CH3O4S*C16H16N3S
    4-((2-benzylthio)phenyl)-1-methyl-4H-1,2,4-triazol-1-ium methyl sulfate
    —— 4-{2-[2-Oxo-5-phenyl-3-(3-m-tolyl-ureido)-2,3-dihydro-benzo[e][1,4]diazepin-1-yl]-ethoxycarbonylamino}-butyric acid 159586-51-3 C30H31N5O6
    4-{2-[2-Oxo-5-phenyl-3-(3-m-tolyl-ureido)-2,3-dihydro-benzo[e][1,4]diazepin-1-yl]-ethoxycarbonylamino}-butyric acid
    —— (4S,1E)-2,4-dihydro-2,4-dimethyl-1-(4-nitrobenzylidene)-1H-pyrazino[2,1-b]quinazoline-3,6-dione 1263306-58-6 C20H16N4O4
    (4S,1E)-2,4-dihydro-2,4-dimethyl-1-(4-nitrobenzylidene)-1H-pyrazino[2,1-b]quinazoline-3,6-dione
    —— 4-(4,6-dimethyl-pyrimidin-2-yl)-2,3,3a,4,5,11b-hexahydro-3,5-methano-furo[2',3':5,6]pyrido[3,4-b]quinoxaline 11-oxide 71902-91-5 C20H19N5O2
    4-(4,6-dimethyl-pyrimidin-2-yl)-2,3,3a,4,5,11b-hexahydro-3,5-methano-furo[2',3':5,6]pyrido[3,4-b]quinoxaline 11-oxide
    —— 4-(2-methylthio-4-pyrimidinyl)-2, 4-dioxobutanoic acid methyl ester 858599-44-7 C10H10N2O4S
    4-(2-methylthio-4-pyrimidinyl)-2, 4-dioxobutanoic acid methyl ester
    —— 4-Benzyl-6-[(4-hydroxy-3-propan-2-ylphenyl)methyl]benzene-1,2,3-triol 877878-24-5 C23H24O4
    4-Benzyl-6-[(4-hydroxy-3-propan-2-ylphenyl)methyl]benzene-1,2,3-triol
    —— 4-Chlorsalicylsaeure-N-aethyl-N-allylamid 101655-04-3 C12H14ClNO2
    4-Chlorsalicylsaeure-N-aethyl-N-allylamid
    —— 4-[3-[7-[4-(ethylsulfonyl)piperazin-1-yl]heptyl]-2,5-dihydro-4-methyl-2,5-dioxo-1H-pyrrol-1-yl]-2-(trifluoromethyl)benzonitrile 534610-67-8 C26H33F3N4O4S
    4-[3-[7-[4-(ethylsulfonyl)piperazin-1-yl]heptyl]-2,5-dihydro-4-methyl-2,5-dioxo-1H-pyrrol-1-yl]-2-(trifluoromethyl)benzonitrile
    —— 4-(2,4-dihydroxy-benzoyl)-7-methoxy-coumarin 855903-01-4 C17H12O6
    4-(2,4-dihydroxy-benzoyl)-7-methoxy-coumarin
    —— 4-biphenyl-6-oxy-thieno[2,3-c]pyridine-2-carboxylic acid methyl ester 870243-97-3 C21H15NO3S
    4-biphenyl-6-oxy-thieno[2,3-c]pyridine-2-carboxylic acid methyl ester
    —— 4-(5-Chloro-2-methyl-3-phenyl-1H-indol-1-yl)-1-methylpyridinium, iodide 141306-79-8 C21H18ClN2*I
    4-(5-Chloro-2-methyl-3-phenyl-1H-indol-1-yl)-1-methylpyridinium, iodide
    —— 4-iso-propyl-2-methoxy-5-methylsulfonylbenzoic Acid 213598-26-6 C12H16O5S
    4-iso-propyl-2-methoxy-5-methylsulfonylbenzoic Acid
    —— 4-amino-6-(4-{trans-4-[2-(4-hydroxy-4-methylpiperidin-1-yl)-2-oxoethyl]-cyclohexyl}phenyl)-7,8-dihydro-pyrimido[5,4-f][1,4]oxazepin-5(6H)-one 1236357-04-2 C27H35N5O4
    4-amino-6-(4-{trans-4-[2-(4-hydroxy-4-methylpiperidin-1-yl)-2-oxoethyl]-cyclohexyl}phenyl)-7,8-dihydro-pyrimido[5,4-f][1,4]oxazepin-5(6H)-one
    —— 4-(1-phenyl-1H-pyrrol-2-yl)butan-2-one 1221071-45-9 C14H15NO
    4-(1-phenyl-1H-pyrrol-2-yl)butan-2-one
    —— 4-(4-{2-thioxo-2-[4-(6-trifluoromethylpyridin-3-yl)piperazin-1-yl]ethoxy}cyclohexylamino)-2-trifluoromethylbenzonitrile 1258838-22-0 C26H27F6N5OS
    4-(4-{2-thioxo-2-[4-(6-trifluoromethylpyridin-3-yl)piperazin-1-yl]ethoxy}cyclohexylamino)-2-trifluoromethylbenzonitrile
    —— 4-Trimethylsilyl-buttersaeure-allylester 17591-68-3 C10H20O2Si
    4-Trimethylsilyl-buttersaeure-allylester
    —— 4-[[4-Chloro-3-(trifluoromethylsulfonyl)phenyl]methyl]pyrido[3,2-b][1,4]thiazin-3-one 1522380-41-1 C15H10ClF3N2O3S2
    4-[[4-Chloro-3-(trifluoromethylsulfonyl)phenyl]methyl]pyrido[3,2-b][1,4]thiazin-3-one
    —— 4,4-dipropyl-imidazolidin-2-one 100708-02-9 C9H18N2O
    4,4-dipropyl-imidazolidin-2-one
    —— 4-(2-Azido-1-cyclopentyl-ethyl)-toluene 154411-99-1 C14H19N3
    4-(2-Azido-1-cyclopentyl-ethyl)-toluene
    —— <4-14C>17-hydroxyprogesterone 3001-40-9 C21H30O3
    <4-14C>17-hydroxyprogesterone
    —— (4S,S(S))-ethyl N-(tert-butylsulfinyl)-4-amino-2-methylenedodecanoate 1303571-80-3 C19H37NO3S
    (4S,S(S))-ethyl N-(tert-butylsulfinyl)-4-amino-2-methylenedodecanoate
    —— 4,4'-dioxo-4,4'-(2,5,6,7-tetrahydro-1H-cyclopenta[cd]phenalene-3,9-diyl)-di-butyric acid dimethyl ester 125643-93-8 C25H26O6
    4,4'-dioxo-4,4'-(2,5,6,7-tetrahydro-1H-cyclopenta[cd]phenalene-3,9-diyl)-di-butyric acid dimethyl ester
    —— 4'-[2-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]amino]-ethyl]-3-propoxy-1,1'-biphenyl-4-carboxylic Acid Hydrochloride 643092-64-2 C26H28ClNO4*ClH
    4'-[2-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]amino]-ethyl]-3-propoxy-1,1'-biphenyl-4-carboxylic Acid Hydrochloride
    —— 4,4'-sulfonylbis(3-(bromomethyl)-1-fluorobenzene) 1062600-05-8 C14H10Br2F2O2S
    4,4'-sulfonylbis(3-(bromomethyl)-1-fluorobenzene)
    —— 4-[N'-Azepan-(2Z)-ylidene-hydrazino]-benzenesulfonic acid 52176-83-7 C12H17N3O3S
    4-[N'-Azepan-(2Z)-ylidene-hydrazino]-benzenesulfonic acid
    —— 4-methyl-3,4-dihydro-benzo[<i>d</i>]azepine-1,2,5-trione 118726-63-9 C11H9NO3
    4-methyl-3,4-dihydro-benzo[<i>d</i>]azepine-1,2,5-trione
    —— 4-cyanophenyl 3-O-acetyl-2,5-anhydro-4-O-methyl-1,6-dithio-α-D-glucoseptanoside 316376-29-1 C16H17NO4S2
    4-cyanophenyl 3-O-acetyl-2,5-anhydro-4-O-methyl-1,6-dithio-α-D-glucoseptanoside
    —— 4-(2-carboxy-5-chloro-benzyl-thio)phenyl acetic acid 55863-35-9 C16H13ClO4S
    4-(2-carboxy-5-chloro-benzyl-thio)phenyl acetic acid
    —— 4-[(4-nitrocinnamoyl)aminomethyl]benzoic acid 945183-81-3 C17H14N2O5
    4-[(4-nitrocinnamoyl)aminomethyl]benzoic acid
    —— (4S)-1-[N-(4-benzenesulfonamidophenyl)aminocarbonylmethyl]-4-[4-methoxy-3-(3R)-tetrahydrofuranyloxyphenyl]-2-pyrrolidone 790298-12-3 C29H31N3O7S
    (4S)-1-[N-(4-benzenesulfonamidophenyl)aminocarbonylmethyl]-4-[4-methoxy-3-(3R)-tetrahydrofuranyloxyphenyl]-2-pyrrolidone