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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 4-Propionyloxy-3'-propionyl-1.2-dihydro-spiro<phthalazin-1.2'-oxazolidin> 98222-34-5 C16H19N3O4
    4-Propionyloxy-3'-propionyl-1.2-dihydro-spiro<phthalazin-1.2'-oxazolidin>
    —— 4-Methyl-5-<2-oxo-4-methyl-thiazolidinyl-(4)>-3H-thiazolon-(2) 90007-44-6 C8H10N2O2S2
    4-Methyl-5-<2-oxo-4-methyl-thiazolidinyl-(4)>-3H-thiazolon-(2)
    —— 4-Ethoxy-1,3-bis-diethoxymethyl-5-ethoxymethyl-cyclohexan 100575-29-9 C21H42O6
    4-Ethoxy-1,3-bis-diethoxymethyl-5-ethoxymethyl-cyclohexan
    —— 4-<4-Methoxy-phenylimino>-chromen-2-carbonsaeure-aethylester 94257-19-9 C19H17NO4
    4-<4-Methoxy-phenylimino>-chromen-2-carbonsaeure-aethylester
    —— (4aR,8S,9aR)-2-Iodomethyl-2,8-dimethyl-decahydro-4a,8-methano-benzocycloheptene 104210-58-4 C15H25I
    (4aR,8S,9aR)-2-Iodomethyl-2,8-dimethyl-decahydro-4a,8-methano-benzocycloheptene
    —— (4S,5S)-5-(4-Chloro-benzoyl)-1-cyclohexyl-4-phenyl-imidazolidin-2-one 95797-25-4 C22H23ClN2O2
    (4S,5S)-5-(4-Chloro-benzoyl)-1-cyclohexyl-4-phenyl-imidazolidin-2-one
    —— 4-hydroxy-1-isopropyl-3-nitro-5,6,7,8-tetrahydro-1<i>H</i>-quinolin-2-one 56517-49-8 C12H16N2O4
    4-hydroxy-1-isopropyl-3-nitro-5,6,7,8-tetrahydro-1<i>H</i>-quinolin-2-one
    —— (4-cyclopropyl-6-((2,4-dichlorobenzyl)oxy)-1-benzothiophen-3-yl)acetic acid 1452476-26-4 C20H16Cl2O3S
    (4-cyclopropyl-6-((2,4-dichlorobenzyl)oxy)-1-benzothiophen-3-yl)acetic acid
    —— 4-amino-1H-quinazolin-2-one 3(N)-oxide 79212-13-8 C8H7N3O2
    4-amino-1H-quinazolin-2-one 3(N)-oxide
    —— 4,5,6,7-Tetrahydro-1,3-benzothiazole-5-carboxamide 95203-26-2 C8H10N2OS
    4,5,6,7-Tetrahydro-1,3-benzothiazole-5-carboxamide
    —— 4-methoxy-benzoic acid 2-trichloroacetimidoyloxy-4,5-bis-triethylsilanyloxy-tetrahydro-pyran-3-yl ester 931421-68-0 C27H44Cl3NO7Si2
    4-methoxy-benzoic acid 2-trichloroacetimidoyloxy-4,5-bis-triethylsilanyloxy-tetrahydro-pyran-3-yl ester
    —— 4-[tert-butyl(dimethyl)silyl]oxy-1-dimethoxyphosphoryl-8-phenylmethoxyoctan-2-one 91661-00-6 C23H41O6PSi
    4-[tert-butyl(dimethyl)silyl]oxy-1-dimethoxyphosphoryl-8-phenylmethoxyoctan-2-one
    —— 4-Ethynyl-2-fluorobenzoic acid 736117-41-2 C9H5FO2
    4-Ethynyl-2-fluorobenzoic acid
    —— 4-(4-cyclopropylphenoxy)-1-[3-methoxy-4-[2-(3-methoxyazetidin-1-yl)ethoxy]phenyl]-2H-pyrrol-5-one 1574539-87-9 C26H30N2O5
    4-(4-cyclopropylphenoxy)-1-[3-methoxy-4-[2-(3-methoxyazetidin-1-yl)ethoxy]phenyl]-2H-pyrrol-5-one
    —— 4',2''-di-O-acetyl-5-O-benzoyl-4'',6''-O-cyclohexylidene-3'-deoxy-5-epi-1,3,2',6',3''-penta-N-tosylkanamycin B 119783-94-7 C70H83N5O22S5
    4',2''-di-O-acetyl-5-O-benzoyl-4'',6''-O-cyclohexylidene-3'-deoxy-5-epi-1,3,2',6',3''-penta-N-tosylkanamycin B
    —— 4-[3-(8-Hydroxy-1,4-dioxaspiro[4.5]decan-8-yl)prop-2-ynoyl]benzonitrile 1224949-49-8 C18H17NO4
    4-[3-(8-Hydroxy-1,4-dioxaspiro[4.5]decan-8-yl)prop-2-ynoyl]benzonitrile
    —— 4,4-diethyl-1-but-2-enyl-2-phenyl-pyrazolidine-3,5-dione 101602-79-3 C17H22N2O2
    4,4-diethyl-1-but-2-enyl-2-phenyl-pyrazolidine-3,5-dione
    —— 4-(Oxan-4-ylmethyl)-2-(2,4,5-trimethylphenyl)cyclopentane-1,3-dione 1203554-21-5 C20H26O3
    4-(Oxan-4-ylmethyl)-2-(2,4,5-trimethylphenyl)cyclopentane-1,3-dione
    —— 4-(3-(4-allyl-3,5-dimethylphenyl)-1,2,4-oxadiazol-5-yl)-7,7-dimethyl-5,6,7,8-tetrahydroisoquinolin-1-amine 1235323-45-1 C24H28N4O
    4-(3-(4-allyl-3,5-dimethylphenyl)-1,2,4-oxadiazol-5-yl)-7,7-dimethyl-5,6,7,8-tetrahydroisoquinolin-1-amine
    —— 4-(Tris-ethylsulfanyl-methyl)-biphenyl 109272-21-1 C19H24S3
    4-(Tris-ethylsulfanyl-methyl)-biphenyl
    —— (4R,5R)-4,5-bis((R)-1-methoxy-1-phenylethyl)-2,2-dimethyl-1,3-dioxolane 912646-24-3 C23H30O4
    (4R,5R)-4,5-bis((R)-1-methoxy-1-phenylethyl)-2,2-dimethyl-1,3-dioxolane
    —— 4-Benzyloxy-3-hexadecyloxymethyl-butyric acid ethyl ester 153154-38-2 C30H52O4
    4-Benzyloxy-3-hexadecyloxymethyl-butyric acid ethyl ester
    —— 4-[(Z)-Hydroxyimino]-pyrrolidine-1,3-dicarboxylic acid 3-allyl ester 1-tert-butyl ester 654638-72-9 C13H20N2O5
    4-[(Z)-Hydroxyimino]-pyrrolidine-1,3-dicarboxylic acid 3-allyl ester 1-tert-butyl ester
    —— 4-[4-(Morpholin-4-yl)phenyl]-N-(2-morpholin-4-ylethyl)thiophene-2-carboxamide 666721-26-2 C21H27N3O3S
    4-[4-(Morpholin-4-yl)phenyl]-N-(2-morpholin-4-ylethyl)thiophene-2-carboxamide
    —— 4-(2-thioxobenzo[d]thiazol-3(2H)-yl)butyl benzoate 1016539-35-7 C18H17NO2S2
    4-(2-thioxobenzo[d]thiazol-3(2H)-yl)butyl benzoate
    —— 4-(3-chloropyridin-2-yl)-3-methoxy-N-[4-(trifluoromethoxy)phenyl]benzamide 849756-14-5 C20H14ClF3N2O3
    4-(3-chloropyridin-2-yl)-3-methoxy-N-[4-(trifluoromethoxy)phenyl]benzamide
    —— (4-(1,3-dioxolan-2-yl)-2,6-diiodophenoxy)(tert-butyl)dimethylsilane 1426673-17-7 C15H22I2O3Si
    (4-(1,3-dioxolan-2-yl)-2,6-diiodophenoxy)(tert-butyl)dimethylsilane
    —— 4-methyl-3-[2-(methyloxy)phenyl]-5-(4-penten-1-yl)-4H-1,2,4-triazole 913061-62-8 C15H19N3O
    4-methyl-3-[2-(methyloxy)phenyl]-5-(4-penten-1-yl)-4H-1,2,4-triazole
    —— 4-(3-chloro-4-fluorophenyl)-5-(3-cyanophenyl)-1,3-thiazole-2-carboxylic acid 1266520-25-5 C17H8ClFN2O2S
    4-(3-chloro-4-fluorophenyl)-5-(3-cyanophenyl)-1,3-thiazole-2-carboxylic acid
    —— 4-acetoxy-3-methoxycarbonyl-4-(3-methoxy-4-ethoxyphenyl)but-3-ene-2-one 110842-06-3 C17H20O7
    4-acetoxy-3-methoxycarbonyl-4-(3-methoxy-4-ethoxyphenyl)but-3-ene-2-one
    —— (4S)-4-[[(2S)-2-(methylamino)propanoyl]amino]-N-[[4-[[[(4S)-4-[[(2S)-2-(methylamino)propanoyl]amino]-5-oxo-5-[(2S)-2-[[2-phenylethyl-(2,2,2-trifluoroacetyl)amino]methyl]pyrrolidin-1-yl]pentanoyl]amino]methyl]phenyl]methyl]-5-oxo-5-[(2S)-2-[[2-phenylethyl-(2,2,2-trifluoroacetyl)amino]methyl]pyrrolidin-1-yl]pentanamide 934963-73-2 C56H74F6N10O8
    (4S)-4-[[(2S)-2-(methylamino)propanoyl]amino]-N-[[4-[[[(4S)-4-[[(2S)-2-(methylamino)propanoyl]amino]-5-oxo-5-[(2S)-2-[[2-phenylethyl-(2,2,2-trifluoroacetyl)amino]methyl]pyrrolidin-1-yl]pentanoyl]amino]methyl]phenyl]methyl]-5-oxo-5-[(2S)-2-[[2-phenylethyl-(2,2,2-trifluoroacetyl)amino]methyl]pyrrolidin-1-yl]pentanamide
    —— 4-fluoroisoindolo[1,2-b]quinazoline-10,12-dione 1644185-65-8 C15H7FN2O2
    4-fluoroisoindolo[1,2-b]quinazoline-10,12-dione
    —— 4-(2-benzofuranyl)-5,6-dihydro-7-methyl-4H-pyrrolo[1,2-a][1,4]benzodiazepine hydrochloride 1407992-02-2 C21H18N2O*ClH
    4-(2-benzofuranyl)-5,6-dihydro-7-methyl-4H-pyrrolo[1,2-a][1,4]benzodiazepine hydrochloride
    —— 4-(2-benzofuranyl)-7,9-dichloro-5,6-dihydro-4H-pyrrolo[1,2-a][1,4]benzodiazepine hydrochloride 1407992-01-1 C20H14Cl2N2O*ClH
    4-(2-benzofuranyl)-7,9-dichloro-5,6-dihydro-4H-pyrrolo[1,2-a][1,4]benzodiazepine hydrochloride
    —— (4R)-4-fIuoro-7-(2-fluoro-3-pyridinyl)-2-((3-methyl-3-oxetanyl)methoxy)-5,6-dihydrospiro[1,3-thiazine-4,9-xanthen]-2-amine 1335217-56-5 C26H23F2N3O3S
    (4R)-4-fIuoro-7-(2-fluoro-3-pyridinyl)-2-((3-methyl-3-oxetanyl)methoxy)-5,6-dihydrospiro[1,3-thiazine-4,9-xanthen]-2-amine
    —— (4-Chlor-phenylsulfonyl)-dicyandiamid 107633-75-0 C8H7ClN4O2S
    (4-Chlor-phenylsulfonyl)-dicyandiamid
    —— 4-bromo-1-(3,4-dichlorophenacyl)-2-methyl-5-nitroimidazole 1158999-90-6 C12H8BrCl2N3O3
    4-bromo-1-(3,4-dichlorophenacyl)-2-methyl-5-nitroimidazole
    —— 4,6-Pyrimidinediamine, N4-(2,5-difluorophenyl)-5-nitro-N6-[4-(2-phenyldiazenyl)phenyl]- 888259-74-3 C22H15F2N7O2
    4,6-Pyrimidinediamine, N4-(2,5-difluorophenyl)-5-nitro-N6-[4-(2-phenyldiazenyl)phenyl]-
    —— 4,5-difluoro-2-nitro-benzenesulfonyl chloride 1394083-84-1 C6H2ClF2NO4S
    4,5-difluoro-2-nitro-benzenesulfonyl chloride
    —— 4-(3,5-bis(trifluoromethyl)phenylamino)-2-(methylthio)pyrido[4,3-d]pyrimidin-5(6H)-one 1300610-38-1 C16H10F6N4OS
    4-(3,5-bis(trifluoromethyl)phenylamino)-2-(methylthio)pyrido[4,3-d]pyrimidin-5(6H)-one
    —— 4,6-Pyrimidinediamine, 5-nitro-N4-[4-(2-phenyldiazenyl)phenyl]-N6-(2,2,6,6-tetramethyl-4-piperidinyl)- 888132-17-0 C25H30N8O2
    4,6-Pyrimidinediamine, 5-nitro-N4-[4-(2-phenyldiazenyl)phenyl]-N6-(2,2,6,6-tetramethyl-4-piperidinyl)-
    —— 4-bromo-5-methoxy-1-methyl-1H-pyrrole-2-carbaldehyde 1415347-67-9 C7H8BrNO2
    4-bromo-5-methoxy-1-methyl-1H-pyrrole-2-carbaldehyde
    —— 4-(4-Ethoxy-phenyl)-3-[(2-nitro-phenyl)-hydrazono]-3H-pyran-2,6-dione 76747-08-5 C19H15N3O6
    4-(4-Ethoxy-phenyl)-3-[(2-nitro-phenyl)-hydrazono]-3H-pyran-2,6-dione
    —— (4-(N-(5-cyclopropyl-2-(4-fluorophenyl)-3-(methylcarbamoyl)benzofuran-6-yl)methylsulfonamido)-2-((methoxymethoxy)methyl)phenyl)boronic acid 1423008-05-2 C29H30BFN2O8S
    (4-(N-(5-cyclopropyl-2-(4-fluorophenyl)-3-(methylcarbamoyl)benzofuran-6-yl)methylsulfonamido)-2-((methoxymethoxy)methyl)phenyl)boronic acid
    —— 4-(diethylphosphonomethyl)-4'-methyl-2,2'-bipyridine 329686-53-5 C16H21N2O3P
    4-(diethylphosphonomethyl)-4'-methyl-2,2'-bipyridine
    —— 4-chloro<β-13C>acetophenone 166403-02-7 C8H7ClO
    4-chloro<β-13C>acetophenone
    —— 4-bromothieno[2,3-b]pyridine 1305208-22-3 C7H4BrNS
    4-bromothieno[2,3-b]pyridine
    —— 4-[1-(4-Hydroxy-3-methoxy-phenyl)-meth-(Z)-ylidene-hydrazinocarbonylmethoxy]-5-isopropyl-2-methyl-benzenesulfonamide 100170-14-7 C20H25N3O6S
    4-[1-(4-Hydroxy-3-methoxy-phenyl)-meth-(Z)-ylidene-hydrazinocarbonylmethoxy]-5-isopropyl-2-methyl-benzenesulfonamide
    —— 4-(4-Fluor-benzolazo)-benzoesaeure-(2-methoxycarbonyl-phenylester) 2745-77-9 C21H15FN2O4
    4-(4-Fluor-benzolazo)-benzoesaeure-(2-methoxycarbonyl-phenylester)
    —— 4-Hydroxy-2,6-di-<pyridyl-(3)>-piperidin-dicarbonsaeure-(3,5)-dimethylester 94312-42-2 C19H21N3O5
    4-Hydroxy-2,6-di-<pyridyl-(3)>-piperidin-dicarbonsaeure-(3,5)-dimethylester