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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-1,4-dihydro-2H-pyrido[2,3-d][1,3]oxazin-2-one 899438-63-2 C9H10N2O2
    4,4-dimethyl-1,4-dihydro-2H-pyrido[2,3-d][1,3]oxazin-2-one
    —— 4-(5-Chlorosulfonyl-2,4-dimethoxyphenyl)-2,6-pyridine dicarboxylic acid dimethyl ester 124680-90-6 C17H16ClNO8S
    4-(5-Chlorosulfonyl-2,4-dimethoxyphenyl)-2,6-pyridine dicarboxylic acid dimethyl ester
    —— 4-carboxamido-4-pentafluorophenylhexanoic acid 113423-86-2 C13H12F5NO3
    4-carboxamido-4-pentafluorophenylhexanoic acid
    —— 4,6-bis-methylsulfanyl-benzene-1,3-disulfonyl chloride 861529-59-1 C8H8Cl2O4S4
    4,6-bis-methylsulfanyl-benzene-1,3-disulfonyl chloride
    —— 4-[2-[(4-cyanophenoxy)methyl]-3H-imidazo[4,5-b]pyridin-5-yl]benzonitrile 1541988-06-0 C21H13N5O
    4-[2-[(4-cyanophenoxy)methyl]-3H-imidazo[4,5-b]pyridin-5-yl]benzonitrile
    —— 4,4-Dimethyl-4,5-dihydro-1H-1,3a-etheno-azulene-9,10-dicarboxylic acid dimethyl ester 61020-66-4 C18H20O4
    4,4-Dimethyl-4,5-dihydro-1H-1,3a-etheno-azulene-9,10-dicarboxylic acid dimethyl ester
    —— 4-[(S)-4-carboxy-2-({4-[2-(3,3-difluoro-pyrrolidin-1-yl)-2-oxo-ethoxy]-quinoline-2-carbonyl}-amino)-butyryl]-piperazine-1-carboxylic acid ethyl ester 1073450-80-2 C28H33F2N5O8
    4-[(S)-4-carboxy-2-({4-[2-(3,3-difluoro-pyrrolidin-1-yl)-2-oxo-ethoxy]-quinoline-2-carbonyl}-amino)-butyryl]-piperazine-1-carboxylic acid ethyl ester
    —— 4'-(4-(2,6-dimethylmorpholino)thiocarbonyl-1,2,3-triazol-1-yl)benzo-15-crown-5 1252786-37-0 C23H32N4O6S
    4'-(4-(2,6-dimethylmorpholino)thiocarbonyl-1,2,3-triazol-1-yl)benzo-15-crown-5
    —— 4-(Azetidin-3-yl)pyrimidin-2-amine dihydrochloride 2173999-27-2 C7H12Cl2N4
    4-(Azetidin-3-yl)pyrimidin-2-amine dihydrochloride
    —— 4,6-dioctoxy-1-N'-[3-[2-(2-octoxybenzoyl)hydrazinyl]-3-oxopropanoyl]-3-N'-[3-[2-(3-octoxynaphthalene-2-carbonyl)hydrazinyl]-3-oxopropanoyl]benzene-1,3-dicarbohydrazide 1039115-98-4 C64H92N8O12
    4,6-dioctoxy-1-N'-[3-[2-(2-octoxybenzoyl)hydrazinyl]-3-oxopropanoyl]-3-N'-[3-[2-(3-octoxynaphthalene-2-carbonyl)hydrazinyl]-3-oxopropanoyl]benzene-1,3-dicarbohydrazide
    —— 4-Bromo-benzoic acid (1R,3R,3aR,3bR,4R,6aS,6bR)-3-{1-[(2S,3S)-3-((R)-1-chloro-2-hydroxy-2-methyl-propyl)-oxiranyl]-vinyl}-4,6b-dimethyl-decahydro-cyclobutadicyclopenten-1-yl ester 86887-31-2 C27H34BrClO4
    4-Bromo-benzoic acid (1R,3R,3aR,3bR,4R,6aS,6bR)-3-{1-[(2S,3S)-3-((R)-1-chloro-2-hydroxy-2-methyl-propyl)-oxiranyl]-vinyl}-4,6b-dimethyl-decahydro-cyclobutadicyclopenten-1-yl ester
    —— 4-(4-chlorophenyl)-1-(4-methoxyphenyl)-7,7-dimethyl-3-(4-methylbenzoyl)-4,6,7,8-tetrahydroquinolin-5(1H)-one 1453191-86-0 C32H30ClNO3
    4-(4-chlorophenyl)-1-(4-methoxyphenyl)-7,7-dimethyl-3-(4-methylbenzoyl)-4,6,7,8-tetrahydroquinolin-5(1H)-one
    —— 4-(2-fluoro[1,1'-biphenyl]-4-yl)-3-oxopentanonitrile 113758-76-2 C17H14FNO
    4-(2-fluoro[1,1'-biphenyl]-4-yl)-3-oxopentanonitrile
    —— 4-(phenylcarbamoyl)benzenesulfonic acid sodium salt 1160839-59-7 C13H10NO4S*Na
    4-(phenylcarbamoyl)benzenesulfonic acid sodium salt
    —— 4'-Ethyl-biphenyl-4-carboxylic acid methyl-{(S)-1-[(R)-3-(2,2,2-trifluoro-acetylamino)-pyrrolidine-1-carbonyl]-pyrrolidin-3-yl}-amide 917353-86-7 C27H31F3N4O3
    4'-Ethyl-biphenyl-4-carboxylic acid methyl-{(S)-1-[(R)-3-(2,2,2-trifluoro-acetylamino)-pyrrolidine-1-carbonyl]-pyrrolidin-3-yl}-amide
    —— 4,4,9,9-Tetramethyl-4,9-dihydro-1,2,3-trithia-cyclopenta[b]naphthalene 118825-28-8 C14H16S3
    4,4,9,9-Tetramethyl-4,9-dihydro-1,2,3-trithia-cyclopenta[b]naphthalene
    —— 4-Cyclopentyloxy-2-(3,5-difluorophenyl)-5-[4-(2-hydroxy-3-phenylpropanoyl)piperazin-1-yl]pyridazin-3-one 1062052-98-5 C28H30F2N4O4
    4-Cyclopentyloxy-2-(3,5-difluorophenyl)-5-[4-(2-hydroxy-3-phenylpropanoyl)piperazin-1-yl]pyridazin-3-one
    —— 4-(Hydroxymethyl)-1,3-dioxolan-2-one-2-13C, >=99 atom % 13C, >=95% (CP) 1379618-83-3 C4H6O4
    4-(Hydroxymethyl)-1,3-dioxolan-2-one-2-13C, >=99 atom % 13C, >=95% (CP)
    —— (4-iodophenyl)pyridin-2-ylmethyleneamine 29202-11-7 C12H9IN2
    (4-iodophenyl)pyridin-2-ylmethyleneamine
    —— 4-Hydroxy-3,4'-bi-Δ<sup>3</sup>-pyrrolinyl-2,2'-dion 37772-97-7 C8H8N2O3
    4-Hydroxy-3,4'-bi-Δ<sup>3</sup>-pyrrolinyl-2,2'-dion
    —— (4E)-4,6-dimethyl-5-phenylnona-1,4,7-trien-3-ol 947405-55-2 C17H22O
    (4E)-4,6-dimethyl-5-phenylnona-1,4,7-trien-3-ol
    —— 4,4-bis(methoxymethyl)-6-methyl-1-phenyloct-7-en-1-yne 1192777-97-1 C19H26O2
    4,4-bis(methoxymethyl)-6-methyl-1-phenyloct-7-en-1-yne
    —— 4,5,7-trihydroxy-3-(2',5'-dihydroxyphenyl)coumarin 113139-00-7 C15H10O7
    4,5,7-trihydroxy-3-(2',5'-dihydroxyphenyl)coumarin
    —— [4-(7-chloro-indan-4-yloxy)-5-thiophen-2-yl-pyrazol-1-yl]-acetic acid 1092552-81-2 C18H15ClN2O3S
    [4-(7-chloro-indan-4-yloxy)-5-thiophen-2-yl-pyrazol-1-yl]-acetic acid
    —— 4-[(1-(5-Benzyloxy-2-piperidino-phenyl)-1-ethyl)-aminocarbonylmethyl]-benzoic acid ethyl ester 83901-86-4 C31H36N2O4
    4-[(1-(5-Benzyloxy-2-piperidino-phenyl)-1-ethyl)-aminocarbonylmethyl]-benzoic acid ethyl ester
    —— 4-Bromo-benzenesulfonic acid 9-hydroxy-5-methyl-bicyclo[3.3.1]non-1-ylmethyl ester 2233-64-9 C17H23BrO4S
    4-Bromo-benzenesulfonic acid 9-hydroxy-5-methyl-bicyclo[3.3.1]non-1-ylmethyl ester
    —— 4-[3-[3-[4-(Cyclopropylcarbonyl)piperazin-1-yl]propyl]-2,5-dihydro-4-methyl-2,5-dioxo-1H-pyrrol-1-yl]-2-(trifluoromethyl)benzonitrile 534607-29-9 C24H25F3N4O3
    4-[3-[3-[4-(Cyclopropylcarbonyl)piperazin-1-yl]propyl]-2,5-dihydro-4-methyl-2,5-dioxo-1H-pyrrol-1-yl]-2-(trifluoromethyl)benzonitrile
    —— 4-(2,1,3-benzothiadiazol-5-ylmethyl)-3-(1,3-benzodioxol-5-yl)-5-hydroxy-5-[(2-methoxycarbonylmethyloxy-4-methoxy)phenyl]-5H-furan-2-one 1230951-96-8 C28H22N2O9S
    4-(2,1,3-benzothiadiazol-5-ylmethyl)-3-(1,3-benzodioxol-5-yl)-5-hydroxy-5-[(2-methoxycarbonylmethyloxy-4-methoxy)phenyl]-5H-furan-2-one
    —— 4-[2,5-dihydro-3-methyl-2,5-dioxo-4-[6-[4-[3-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl]hexyl]-1H-pyrrol-1-yl]-2-(trifluoromethyl)benzonitrile 534609-18-2 C29H29F6N5O2
    4-[2,5-dihydro-3-methyl-2,5-dioxo-4-[6-[4-[3-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl]hexyl]-1H-pyrrol-1-yl]-2-(trifluoromethyl)benzonitrile
    —— 4-Hydroxy-3-methoxy-2-propyl-cyclopent-2-enone 31752-85-9 C9H14O3
    4-Hydroxy-3-methoxy-2-propyl-cyclopent-2-enone
    —— 4,4-difluoro-N-(6-fluoro-3-(3-(trifluoromethoxy)phenyl)imidazo[1,2-a]pyridin-2-yl)cyclohexanecarboxamide 1123166-54-0 C21H17F6N3O2
    4,4-difluoro-N-(6-fluoro-3-(3-(trifluoromethoxy)phenyl)imidazo[1,2-a]pyridin-2-yl)cyclohexanecarboxamide
    —— 4-Amino-5-methyl-7-pyrrolidin-1-yl-pyrrolo<2,3-d;4,5-d'>dipyrimidin-9-carbonsaeureamid 114198-49-1 C14H16N8O
    4-Amino-5-methyl-7-pyrrolidin-1-yl-pyrrolo<2,3-d;4,5-d'>dipyrimidin-9-carbonsaeureamid
    —— 4-[(tert-butoxycarbonyl)amino]-1-allylpyrrole-2-carboxylic acid 530102-99-9 C13H18N2O4
    4-[(tert-butoxycarbonyl)amino]-1-allylpyrrole-2-carboxylic acid
    —— 4-bromo-2-methyl-1-(4-fluoro-3-nitrophenacyl)-5-nitroimidazole 1159000-13-1 C12H8BrFN4O5
    4-bromo-2-methyl-1-(4-fluoro-3-nitrophenacyl)-5-nitroimidazole
    —— 4-octynylphthalonitrile 1059701-86-8 C16H16N2
    4-octynylphthalonitrile
    —— 4-(phenylselenomethyl)phenyl 4-methylbenzenesulfonate 1138347-79-1 C20H18O3SSe
    4-(phenylselenomethyl)phenyl 4-methylbenzenesulfonate
    —— 4-(5-Tert-butylpyrazol-2-id-3-yl)-6-methylpyrimidine;platinum(2+) 1577250-53-3 C24H30N8Pt
    4-(5-Tert-butylpyrazol-2-id-3-yl)-6-methylpyrimidine;platinum(2+)
    —— 4-(bromomethyl)-1-(2-((4-methoxybenzyl)oxy)ethyl)-1H-1,2,3-triazole 1554414-95-7 C13H16BrN3O2
    4-(bromomethyl)-1-(2-((4-methoxybenzyl)oxy)ethyl)-1H-1,2,3-triazole
    —— 4-Methyl-1,1,3,3-tetraphenyl-1,3-diphospholium-bromid 137038-81-4 Br*C28H25P2
    4-Methyl-1,1,3,3-tetraphenyl-1,3-diphospholium-bromid
    —— 4-(<i>tert</i>-butyl-phenyl)-imidazo[1,2-<i>a</i>]quinoxaline 68008-79-7 C20H19N3
    4-(<i>tert</i>-butyl-phenyl)-imidazo[1,2-<i>a</i>]quinoxaline
    —— (4-chlorophenyl)(3,3-difluorocyclopentyl)acetic acid 1402937-50-1 C13H13ClF2O2
    (4-chlorophenyl)(3,3-difluorocyclopentyl)acetic acid
    —— 4"-O-(3-diethylaminopropionyl)-8a-aza-8a-homoerythromycin A 906452-67-3 C44H81N3O14
    4"-O-(3-diethylaminopropionyl)-8a-aza-8a-homoerythromycin A
    —— 4-(3-chlorophenoxy)biphenyl 1268495-75-5 C18H13ClO
    4-(3-chlorophenoxy)biphenyl
    —— 4-(4-Fluorophenyl)-2-((1-amino)cyclohexyl)-5-(4-pyridyl)imidazole 219839-17-5 C20H21FN4
    4-(4-Fluorophenyl)-2-((1-amino)cyclohexyl)-5-(4-pyridyl)imidazole
    —— 4-chlorophenyl 2-methyl-N-phenyl-3-(phenylthio)-2-propenimidothioate 1158825-60-5 C22H18ClNS2
    4-chlorophenyl 2-methyl-N-phenyl-3-(phenylthio)-2-propenimidothioate
    —— 4-(8-bromo-quinoxalin-2-yl)-N-(2-dimethylamino-ethyl)-2,N-dimethyl-benzamide 1092563-99-9 C21H23BrN4O
    4-(8-bromo-quinoxalin-2-yl)-N-(2-dimethylamino-ethyl)-2,N-dimethyl-benzamide
    —— 4-[[3-[4-[(3R)-3-hydroxybutoxy]-2,6-dimethylphenyl]-2-methylphenyl]methoxy]benzaldehyde 955932-48-6 C27H30O4
    4-[[3-[4-[(3R)-3-hydroxybutoxy]-2,6-dimethylphenyl]-2-methylphenyl]methoxy]benzaldehyde
    —— 4-Nitro-2,3-dihydro-1H-inden-1-amine hydrochloride 1958100-54-3 C9H11ClN2O2
    4-Nitro-2,3-dihydro-1H-inden-1-amine hydrochloride
    —— 4-methyl-N'-{(1E)-[3-methyl-1-phenyl-5-(phenylethynyl)-1H-pyrazol-4-yl]methylene}benzenesulfonohydrazide 1430207-97-8 C26H22N4O2S
    4-methyl-N'-{(1E)-[3-methyl-1-phenyl-5-(phenylethynyl)-1H-pyrazol-4-yl]methylene}benzenesulfonohydrazide
    —— 4-tert-butylamino-2,3,6,7-tetrahydro-5,6,6,7,7-pentamethoxy-1H-cyclobuta[1,2-e]indene 497257-27-9 C20H31NO5
    4-tert-butylamino-2,3,6,7-tetrahydro-5,6,6,7,7-pentamethoxy-1H-cyclobuta[1,2-e]indene