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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 4-ethoxy-pyrimidine-2,5-diyldiamine 98484-98-1 C6H10N4O
    4-ethoxy-pyrimidine-2,5-diyldiamine
    —— 4-hydroxy-butan-2-one <i>O</i>-pentyl-oxime 42875-65-0 C9H19NO2
    4-hydroxy-butan-2-one <i>O</i>-pentyl-oxime
    —— 4,4'-Dimethyl-[7b,7'b]bi[indeno[1,2,3-jk]fluorenyl] 344747-13-3 C40H26
    4,4'-Dimethyl-[7b,7'b]bi[indeno[1,2,3-jk]fluorenyl]
    —— 4-[(1R)-1-[(3R)-4-[2-chloro-4-(2-hydroxyethoxy)phenyl]-3-(4-fluorophenyl)piperazin-1-yl]ethyl]benzonitrile 1097206-82-0 C27H27ClFN3O2
    4-[(1R)-1-[(3R)-4-[2-chloro-4-(2-hydroxyethoxy)phenyl]-3-(4-fluorophenyl)piperazin-1-yl]ethyl]benzonitrile
    —— 4-chloro-N-cycloheptyl-N-{3-methoxy-4-[2-(4-methyl-thiazol-5-yl)-ethoxy]-benzyl}-benzenesulfonamide 865289-50-5 C27H33ClN2O4S2
    4-chloro-N-cycloheptyl-N-{3-methoxy-4-[2-(4-methyl-thiazol-5-yl)-ethoxy]-benzyl}-benzenesulfonamide
    —— 4-[5-(tert-butyl-dimethyl-silanyloxy)-3-hydroxy-8-methyl-undec-9-ynoyl]-3-(4-methoxy-benzyl)-thiazolidin-2-one 928112-45-2 C29H45NO5SSi
    4-[5-(tert-butyl-dimethyl-silanyloxy)-3-hydroxy-8-methyl-undec-9-ynoyl]-3-(4-methoxy-benzyl)-thiazolidin-2-one
    —— 4-(4-Amino-2-diethylamino-6-methyl-pyrimidin-5-ylazo)-2,5-dichloro-benzenesulfonic acid 79499-12-0 C15H18Cl2N6O3S
    4-(4-Amino-2-diethylamino-6-methyl-pyrimidin-5-ylazo)-2,5-dichloro-benzenesulfonic acid
    —— 4-[5-propyl-3-phenylisoxazol-4-yl]benzenesulfonic acid 181696-36-6 C18H17NO4S
    4-[5-propyl-3-phenylisoxazol-4-yl]benzenesulfonic acid
    —— 4-bromo-2-(trifluoromethyl)-N-(2,4,4-trimethylpentan-2-yl)benzenesulfonamide 1034926-16-3 C15H21BrF3NO2S
    4-bromo-2-(trifluoromethyl)-N-(2,4,4-trimethylpentan-2-yl)benzenesulfonamide
    —— (4-bromophenyl)-chloro-(1-chloro-2,2,2-trifluoro-1-phenylethyl)imino-oxo-λ6-sulfane 75168-71-7 C14H9BrCl2F3NOS
    (4-bromophenyl)-chloro-(1-chloro-2,2,2-trifluoro-1-phenylethyl)imino-oxo-λ6-sulfane
    —— 4-chloro-2-ethyl-2H-pyrazole-3-carboxylic acid (2-phenyl-imidazo[1,2-a]pyrimidin-7-yl)-amide 1335298-82-2 C18H15ClN6O
    4-chloro-2-ethyl-2H-pyrazole-3-carboxylic acid (2-phenyl-imidazo[1,2-a]pyrimidin-7-yl)-amide
    —— 4-bromo-benzaldehyde (E)-O-(1,1-dioxo-1H-1λ6-benzo[d]isothiazol-3-yl)-oxime 26994-60-5 C14H9BrN2O3S
    4-bromo-benzaldehyde (E)-O-(1,1-dioxo-1H-1λ6-benzo[d]isothiazol-3-yl)-oxime
    —— 4-Isopropylidene-5-phenyl-2-p-tolyl-2,4-dihydro-pyrazol-3-one 87277-63-2 C19H18N2O
    4-Isopropylidene-5-phenyl-2-p-tolyl-2,4-dihydro-pyrazol-3-one
    —— (-)-(4S,5S)-4-Tosyloxymethyl-5-vinyl-1,3-dioxolan-2-one 121405-05-8 C13H14O6S
    (-)-(4S,5S)-4-Tosyloxymethyl-5-vinyl-1,3-dioxolan-2-one
    —— 4,6-bis(4-methoxyphenyl)-thieno[3,4-d]-1,3-dithiol-2-one 1042436-03-2 C19H14O3S3
    4,6-bis(4-methoxyphenyl)-thieno[3,4-d]-1,3-dithiol-2-one
    —— 4-O-[(t-butyl)dimethylsilyl]-7-O-methoxymethyl-1,2,3-trideoxy-5,6:8,9-di-O-isopropylidene-D-erythro-D-manno-1-yno-nonitol 460325-87-5 C23H42O7Si
    4-O-[(t-butyl)dimethylsilyl]-7-O-methoxymethyl-1,2,3-trideoxy-5,6:8,9-di-O-isopropylidene-D-erythro-D-manno-1-yno-nonitol
    —— 4,4-bis-<p-Benzyloxyphenyl>-valerophenon 25330-25-0 C37H34O3
    4,4-bis-<p-Benzyloxyphenyl>-valerophenon
    —— 4-(2-fluoro-4-nitrophenoxy)-N-(2-((methylsulfonyl)methyl)phenyl)pyrimidin-2-amine 1584220-20-1 C18H15FN4O5S
    4-(2-fluoro-4-nitrophenoxy)-N-(2-((methylsulfonyl)methyl)phenyl)pyrimidin-2-amine
    —— 4-(2,5-Di-p-tolyl-2H-pyrazol-3-yl)-2-methoxy-phenol 76455-78-2 C24H22N2O2
    4-(2,5-Di-p-tolyl-2H-pyrazol-3-yl)-2-methoxy-phenol
    —— (4-(tert-butyl)phenyl)(3-phenyl-1H-pyrazol-1-yl)methanone 1600505-92-7 C20H20N2O
    (4-(tert-butyl)phenyl)(3-phenyl-1H-pyrazol-1-yl)methanone
    —— 4-fluorobenzyl 3-(4-hydroxyphenyl)acrylate 1227290-37-0 C16H13FO3
    4-fluorobenzyl 3-(4-hydroxyphenyl)acrylate
    —— [4-(5-benzyl-6-chloropyrimidin-4-ylethynyl)phenyl]dimethylamine 926008-77-7 C21H18ClN3
    [4-(5-benzyl-6-chloropyrimidin-4-ylethynyl)phenyl]dimethylamine
    —— 4-methoxy-1-(pyridin-3-yl)butan-1-one 127686-50-4 C10H13NO2
    4-methoxy-1-(pyridin-3-yl)butan-1-one
    —— 4-(6-{4-[(isobutyl-methyl-carbamoyl)-methyl]-phenyl}-pyridine-3-sulfonyl)-tetrahydro-pyran-4-carboxylic acid tert-butyl ester 701271-68-3 C28H38N2O6S
    4-(6-{4-[(isobutyl-methyl-carbamoyl)-methyl]-phenyl}-pyridine-3-sulfonyl)-tetrahydro-pyran-4-carboxylic acid tert-butyl ester
    —— 4-ethoxycarbonyl-1-(((4-phenyl-5-methyl-4H-1,2,4-triazol-3-yl)sulfanyl)acetyl) thiosemicarbazide 1428354-41-9 C15H18N6O3S2
    4-ethoxycarbonyl-1-(((4-phenyl-5-methyl-4H-1,2,4-triazol-3-yl)sulfanyl)acetyl) thiosemicarbazide
    —— 4-(4-methoxylbenzyl)-5-methyl-1H-pyrazol-3-yl 2,3,4,6-tetra-O-acetyl-β-D-glucopyranoside 329044-67-9 C26H32N2O11
    4-(4-methoxylbenzyl)-5-methyl-1H-pyrazol-3-yl 2,3,4,6-tetra-O-acetyl-β-D-glucopyranoside
    —— 4-(4-N-Benzyl-N-methyl-aminostyryl)-chinolin 95816-69-6 C25H22N2
    4-(4-N-Benzyl-N-methyl-aminostyryl)-chinolin
    —— 4-tert-butylimino-2,5-bis(cyanomethoxycarbonylmethylene)-1,3-dithiolane 92486-82-3 C15H15N3O4S2
    4-tert-butylimino-2,5-bis(cyanomethoxycarbonylmethylene)-1,3-dithiolane
    —— 4-(Naphthalen-2-ylmethyl)-1,3-thiazol-2-amine 897934-51-9 C14H12N2S
    4-(Naphthalen-2-ylmethyl)-1,3-thiazol-2-amine
    —— (4R,6R)-4-(iodomethyl)-6-pentyl-1,3-dioxan-2-one 1196998-67-0 C10H17IO3
    (4R,6R)-4-(iodomethyl)-6-pentyl-1,3-dioxan-2-one
    —— 4-<3-(1-Methyl-4-piperidyl)propyl>-1-piperidinethanol 21520-14-9 C16H32N2O
    4-<3-(1-Methyl-4-piperidyl)propyl>-1-piperidinethanol
    —— 4-Hydroxy-galegin*HCl 1557-71-7 C6H13N3O*ClH
    4-Hydroxy-galegin*HCl
    —— 4-((3R,5S,10S,12S,13R,17R)-3-Ethoxycarbonyloxy-10,13-dimethyl-12-nitrooxy-7-oxo-hexadecahydro-cyclopenta[a]phenanthren-17-yl)-pentanoic acid methyl ester 15825-51-1 C28H43NO9
    4-((3R,5S,10S,12S,13R,17R)-3-Ethoxycarbonyloxy-10,13-dimethyl-12-nitrooxy-7-oxo-hexadecahydro-cyclopenta[a]phenanthren-17-yl)-pentanoic acid methyl ester
    —— 4-N-Acetylamino-4'-chlor-o-terphenyl 6431-59-0 C20H16ClNO
    4-N-Acetylamino-4'-chlor-o-terphenyl
    —— 4-Dimethylamino-2-oxo-6-phenylimino-1,3-dimethyl-1,2,3,6-tetrahydro-pyrimidin 13177-84-9 C14H18N4O
    4-Dimethylamino-2-oxo-6-phenylimino-1,3-dimethyl-1,2,3,6-tetrahydro-pyrimidin
    —— 4-bromo-2-((E)-3-(2-bromophenyl)-3-oxoprop-1-en-1-yl)phenyl benzoate 1393130-70-5 C22H14Br2O3
    4-bromo-2-((E)-3-(2-bromophenyl)-3-oxoprop-1-en-1-yl)phenyl benzoate
    —— 4-cinnamoyloxy-2,2,6,6-tetramethylpiperidine-N-oxyl 21270-87-1 C18H26NO3
    4-cinnamoyloxy-2,2,6,6-tetramethylpiperidine-N-oxyl
    —— 4-phenyl-5-propyl-6-o-tolyl-2H-pyran-2-one 1267539-44-5 C21H20O2
    4-phenyl-5-propyl-6-o-tolyl-2H-pyran-2-one
    —— 4-hydroxymethylcinnoline-3-carbaldehyde 113290-66-7 C10H8N2O2
    4-hydroxymethylcinnoline-3-carbaldehyde
    —— 4-(5-methyl-pyridin-2-yl)-1-phenyl-1H-indazole-6-carboxylic acid 1258940-71-4 C20H15N3O2
    4-(5-methyl-pyridin-2-yl)-1-phenyl-1H-indazole-6-carboxylic acid
    —— [4-(2-hydroxyethyl)-1,4-diazepan-1-yl]-(4-iodophenyl)methanone 924642-89-7 C14H19IN2O2
    [4-(2-hydroxyethyl)-1,4-diazepan-1-yl]-(4-iodophenyl)methanone
    —— 4-chloro-5,8-difluoro-3-methyl-2-(pyridin-2-yl)quinoline 1259439-54-7 C15H9ClF2N2
    4-chloro-5,8-difluoro-3-methyl-2-(pyridin-2-yl)quinoline
    —— 4-(4-fluoro-2-methylphenyl)-2-((S)-2-hydroxy-1-methylethylamino)-8-o-tolyl-8H-pyrido[2,3-d]pyrimidin-7-one 444607-98-1 C24H23FN4O2
    4-(4-fluoro-2-methylphenyl)-2-((S)-2-hydroxy-1-methylethylamino)-8-o-tolyl-8H-pyrido[2,3-d]pyrimidin-7-one
    —— (4-Nitro-phenyl)-phenalen-(1E)-ylidene-amine 27372-60-7 C19H12N2O2
    (4-Nitro-phenyl)-phenalen-(1E)-ylidene-amine
    —— 4-(4-methoxybenzyl)-2-phenyl-5-(phenylselanyl)-thiazole 1167412-49-8 C23H19NOSSe
    4-(4-methoxybenzyl)-2-phenyl-5-(phenylselanyl)-thiazole
    —— 4-cyclopropyl-6-methoxy-2-methyl-3-phenylisoquinolin-1(2H)-one 1416562-27-0 C20H19NO2
    4-cyclopropyl-6-methoxy-2-methyl-3-phenylisoquinolin-1(2H)-one
    —— [4-(4-phenyl-2,3-dihydro-1,5-benzothiazepin-2-yl)phenyl] N-methylcarbamate 125989-77-7 C23H20N2O2S
    [4-(4-phenyl-2,3-dihydro-1,5-benzothiazepin-2-yl)phenyl] N-methylcarbamate
    —— 4-(3-hydroxy-benzylidenamino)-benzoic acid 140140-11-0 C14H11NO3
    4-(3-hydroxy-benzylidenamino)-benzoic acid
    —— (4-methoxyphenyl)-(4-methyl-2-nitrophenyl)diazene 38608-16-1 C14H13N3O3
    (4-methoxyphenyl)-(4-methyl-2-nitrophenyl)diazene
    —— [4-(3-cyclohexyl-1-methyl-4-oxo-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-6-yl)-3-methoxyphenoxy] acetic acid 553669-09-3 C21H24N4O5
    [4-(3-cyclohexyl-1-methyl-4-oxo-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-6-yl)-3-methoxyphenoxy] acetic acid