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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 4-Amino-1H-pyrimido<4,5-d>pyridazin-2-thion 21579-34-0 C6H5N5S
    4-Amino-1H-pyrimido<4,5-d>pyridazin-2-thion
    —— (4S,6R)-4,6-bis(tert-butyldimethylsilyloxy)-7-phenylheptan-1-ol 1160711-50-1 C25H48O3Si2
    (4S,6R)-4,6-bis(tert-butyldimethylsilyloxy)-7-phenylheptan-1-ol
    —— 4'-(4-methylbenzylselanyl)biphenyl-4-carbonitrile 1097832-89-7 C21H17NSe
    4'-(4-methylbenzylselanyl)biphenyl-4-carbonitrile
    —— 4-chloro-2-(((2-(benzylthio)ethyl)(pyridin-2-ylmethyl)amino)methyl)phenol 1256377-16-8 C22H23ClN2OS
    4-chloro-2-(((2-(benzylthio)ethyl)(pyridin-2-ylmethyl)amino)methyl)phenol
    —— 4-hydroxy-3-methoxy-1-oxaspiro<4.4>non-3-en-2-one 107986-57-2 C9H12O4
    4-hydroxy-3-methoxy-1-oxaspiro<4.4>non-3-en-2-one
    —— (+/-)-4-S*-tert-Butyl-2-S*-(2'-S*-tert-butyldimethylsilyloxi)pentylpiperidin 79721-36-1 C20H43NOSi
    (+/-)-4-S*-tert-Butyl-2-S*-(2'-S*-tert-butyldimethylsilyloxi)pentylpiperidin
    —— 4-[4-(5-Trifluoromethyl-pyridin-2-yloxy)-phenoxy]-pentanoic acid ethyl ester 69806-44-6 C19H20F3NO4
    4-[4-(5-Trifluoromethyl-pyridin-2-yloxy)-phenoxy]-pentanoic acid ethyl ester
    —— 4-(4-methoxyphenyl)-5,6-dihydrobenzo[h]quinazolin-2-amine 97145-61-4 C19H17N3O
    4-(4-methoxyphenyl)-5,6-dihydrobenzo[h]quinazolin-2-amine
    —— 4-deuterio-2,3-dihydrothiophene 81142-04-3 C4H6S
    4-deuterio-2,3-dihydrothiophene
    —— 4-chloro-N-[2-(4-chloro-benzenesulfonylamino)-4-(4-methoxy-phenoxy)-phenyl]-benzenesulfonamide 872869-91-5 C25H20Cl2N2O6S2
    4-chloro-N-[2-(4-chloro-benzenesulfonylamino)-4-(4-methoxy-phenoxy)-phenyl]-benzenesulfonamide
    —— 4,4,4-trifluoro-N-hydroxybutyramidine 1344881-15-7 C4H7F3N2O
    4,4,4-trifluoro-N-hydroxybutyramidine
    —— [4-(3,5-dioxo-1,2,4-triazol-4-yl)phenyl]methyl 6,7-dimethoxy-4-methyl-3-oxoquinoxaline-2-carboxylate 132788-51-3 C21H17N5O7
    [4-(3,5-dioxo-1,2,4-triazol-4-yl)phenyl]methyl 6,7-dimethoxy-4-methyl-3-oxoquinoxaline-2-carboxylate
    —— (4Z)-2,6-dimethyl-4-(triisopropylsiloxy)-1,4-decadiene 1422200-06-3 C21H42OSi
    (4Z)-2,6-dimethyl-4-(triisopropylsiloxy)-1,4-decadiene
    —— 4-cyano-3-(trifluoromethyl)phenylisocyanide 1067225-62-0 C9H3F3N2
    4-cyano-3-(trifluoromethyl)phenylisocyanide
    —— 4-butyl-2-phenylquinazoline 197163-72-7 C18H18N2
    4-butyl-2-phenylquinazoline
    —— 4-(((1R,2S,3R,4R)-2,3-bis((tert-butyldimethylsilyl)oxy)-4-(((tert-butyldimethylsilyl)oxy)methyl)cyclopentyl)oxy)-5-iodo-6-methyl-2-(methylsulfonyl)pyrimidine 1208988-36-6 C30H59IN2O6SSi3
    4-(((1R,2S,3R,4R)-2,3-bis((tert-butyldimethylsilyl)oxy)-4-(((tert-butyldimethylsilyl)oxy)methyl)cyclopentyl)oxy)-5-iodo-6-methyl-2-(methylsulfonyl)pyrimidine
    —— 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-((hydroxyimino)methyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate 1392113-47-1 C38H53NO3
    4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-((hydroxyimino)methyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate
    —— 4-Chloro-1-(4-ethoxy-2-methylphenyl)-5-(4-fluorophenyl)pyridin-2-one 1590408-27-7 C20H17ClFNO2
    4-Chloro-1-(4-ethoxy-2-methylphenyl)-5-(4-fluorophenyl)pyridin-2-one
    —— 4-benzyl 1-octadecyl (tert-butoxycarbonyl)-L-aspartate 146287-36-7 C34H57NO6
    4-benzyl 1-octadecyl (tert-butoxycarbonyl)-L-aspartate
    —— 4-acetoxy-4<i>H</i>-benzo[1,4]thiazin-3-one 21201-23-0 C10H9NO3S
    4-acetoxy-4<i>H</i>-benzo[1,4]thiazin-3-one
    —— 4-methoxy-5-methyl-6-(1-ethyl-5-hydroxypyrazol-4-yl)carbonylthiochroman-1,1-dioxide 153329-84-1 C17H20N2O5S
    4-methoxy-5-methyl-6-(1-ethyl-5-hydroxypyrazol-4-yl)carbonylthiochroman-1,1-dioxide
    —— 4-(4-methoxyphenyl)-4-(p-tolylthio)butan-2-one 1373431-94-7 C18H20O2S
    4-(4-methoxyphenyl)-4-(p-tolylthio)butan-2-one
    —— 4-[di-(tert-butoxycarbonyl)amino]-2-(methoxymethyl)-5-[(trimethylsilyl)ethynyl]pyrimidine 1035587-79-1 C21H33N3O5Si
    4-[di-(tert-butoxycarbonyl)amino]-2-(methoxymethyl)-5-[(trimethylsilyl)ethynyl]pyrimidine
    —— (4-{7-[2-(3,4-difluorophenyl)cyclopropylamino]-5-propylsulfanyl-[1,2,3]triazolo[4,5-d]pyrimidin-3-yl}-2,3-dihydroxycyclopentyloxy)acetic acid ethyl ester 1402150-10-0 C25H30F2N6O5S
    (4-{7-[2-(3,4-difluorophenyl)cyclopropylamino]-5-propylsulfanyl-[1,2,3]triazolo[4,5-d]pyrimidin-3-yl}-2,3-dihydroxycyclopentyloxy)acetic acid ethyl ester
    —— (4-isobutyryl)phenylazo tert-butyl sulfide 159490-52-5 C14H20N2OS
    (4-isobutyryl)phenylazo tert-butyl sulfide
    —— 4-(4-methoxyphenyl)-6-methylquinoline 1395894-83-3 C17H15NO
    4-(4-methoxyphenyl)-6-methylquinoline
    —— 4-{[(2R,3S,4R,5S)-3-(3-chloro-2-fluoro-phenyl)-4-(4-chloro-2-fluoro-phenyl)-4-cyano-5-(2,2-dimethyl-propyl)-1-(ethoxycarbonylmethyl-carbamoyl)-pyrrolidine-2-carbonyl]-amino}-3-methoxy-benzoic acid 1354692-90-2 C36H36Cl2F2N4O7
    4-{[(2R,3S,4R,5S)-3-(3-chloro-2-fluoro-phenyl)-4-(4-chloro-2-fluoro-phenyl)-4-cyano-5-(2,2-dimethyl-propyl)-1-(ethoxycarbonylmethyl-carbamoyl)-pyrrolidine-2-carbonyl]-amino}-3-methoxy-benzoic acid
    —— 4(S),5(R)-4,5-Dihydroxy-1-phenyl-3-(2-phenylhydrazonoglyoxalic acid-2-yl)-1,4,5,6-tetrahydropyridazine 247200-59-5 C18H18N4O4
    4(S),5(R)-4,5-Dihydroxy-1-phenyl-3-(2-phenylhydrazonoglyoxalic acid-2-yl)-1,4,5,6-tetrahydropyridazine
    —— 4-O-(2,4,6-Trimethylphenyl)-2'-deoxyuridine 130197-82-9 C18H22N2O5
    4-O-(2,4,6-Trimethylphenyl)-2'-deoxyuridine
    —— 4-ethoxy-2-iodo-1-methoxyindole 220657-58-9 C11H12INO2
    4-ethoxy-2-iodo-1-methoxyindole
    —— 4-sek.-Butyl-benzol-sulfonsaeure-(1)-p-tolylester 93727-89-0 C17H20O3S
    4-sek.-Butyl-benzol-sulfonsaeure-(1)-p-tolylester
    —— 4-((E)-2-(dimethylamino)vinyl)-2-oxo-1-oxaspiro[4.5]dec-3-ene-3-carbonitrile 1417818-95-1 C14H18N2O2
    4-((E)-2-(dimethylamino)vinyl)-2-oxo-1-oxaspiro[4.5]dec-3-ene-3-carbonitrile
    —— (4E)-ethyl 3-{([{3,5-bis(trifluoromethyl)phenyl}sulfonyl]oxy)imino}-5-(4-methoxyphenyl)pent-4-enoate 1346635-57-1 C22H19F6NO6S
    (4E)-ethyl 3-{([{3,5-bis(trifluoromethyl)phenyl}sulfonyl]oxy)imino}-5-(4-methoxyphenyl)pent-4-enoate
    —— 4-[1-(2,2,6,6-tetraethyl-4-methoxy-piperidin-1-yloxy)-ethyl]-benzonitrile 1154038-63-7 C23H36N2O2
    4-[1-(2,2,6,6-tetraethyl-4-methoxy-piperidin-1-yloxy)-ethyl]-benzonitrile
    —— 4-[(4-methoxyphenyl)amino]-3-acetoxy-2-methylenebutanoic acid methyl ester 1266546-21-7 C15H19NO5
    4-[(4-methoxyphenyl)amino]-3-acetoxy-2-methylenebutanoic acid methyl ester
    —— 4-[(3-propyl-2,4-dioxothiazolidin-5-ylidene)methyl]benzoic acid 1474053-49-0 C14H13NO4S
    4-[(3-propyl-2,4-dioxothiazolidin-5-ylidene)methyl]benzoic acid
    —— (4-(dicyanomethylene)-2-(1-pentylbicyclo[2,2,2]oct-4-yl)-6-(1,1-dimethyl-7,7-cyclohexyljulolidyl-9-enyl)-4H-pyran) 1416952-94-7 C42H53N3O
    (4-(dicyanomethylene)-2-(1-pentylbicyclo[2,2,2]oct-4-yl)-6-(1,1-dimethyl-7,7-cyclohexyljulolidyl-9-enyl)-4H-pyran)
    —— (4R,4aR,9aS)-4-((tert-butyldimethylsilyl)oxy)-9a-hydroxy-8-methoxy-4a,6-dimethyl-2,3,4,4a-tetrahydro-1H-xanthene-1,9(9aH)-dione 1449752-21-9 C22H32O6Si
    (4R,4aR,9aS)-4-((tert-butyldimethylsilyl)oxy)-9a-hydroxy-8-methoxy-4a,6-dimethyl-2,3,4,4a-tetrahydro-1H-xanthene-1,9(9aH)-dione
    —— (4S,5R,6R,7R)-6-{[tert-butyl(dimethyl)silyl]oxy}-10-[(3,4-dimethoxybenzyl)oxy]-5,7-dimethyl-1-(trimethylsilyl)dec-1-yn-4-ol 1038082-16-4 C30H54O5Si2
    (4S,5R,6R,7R)-6-{[tert-butyl(dimethyl)silyl]oxy}-10-[(3,4-dimethoxybenzyl)oxy]-5,7-dimethyl-1-(trimethylsilyl)dec-1-yn-4-ol
    —— 4-Chloro-4-methanesulfonyl-5-oxo-5-phenyl-pentanenitrile 34502-56-2 C12H12ClNO3S
    4-Chloro-4-methanesulfonyl-5-oxo-5-phenyl-pentanenitrile
    —— 4-methoxypicolinoylimidazole 1414851-45-8 C10H9N3O2
    4-methoxypicolinoylimidazole
    —— 4-Brom-2,2-dicyano-pelargonamid 36758-86-8 C11H16BrN3O
    4-Brom-2,2-dicyano-pelargonamid
    —— [4-(5-bromo-2-hydroxyphenyl)thiazol-2-yl](4-methoxyphenyl)methanone 1240188-45-7 C17H12BrNO3S
    [4-(5-bromo-2-hydroxyphenyl)thiazol-2-yl](4-methoxyphenyl)methanone
    —— (4R,5R)-6-[4-(tert-butyl-dimethylsilanyloxy)butyl]-5-(3-chloropropyl)-2,4-dimethyl-4,5-dihydro-2H-pyridazin-3-one 1071837-33-6 C19H37ClN2O2Si
    (4R,5R)-6-[4-(tert-butyl-dimethylsilanyloxy)butyl]-5-(3-chloropropyl)-2,4-dimethyl-4,5-dihydro-2H-pyridazin-3-one
    —— (4-Oxiranylmethoxy-phenyl)-acetic acid 2-adamantan-1-yl-ethyl ester 114653-12-2 C23H30O4
    (4-Oxiranylmethoxy-phenyl)-acetic acid 2-adamantan-1-yl-ethyl ester
    —— 4-methylphenyl (Z)-3-{3,4,5-trimethoxy-2-[2-(trifluoroacetylamino)ethyl]phenyl}prop-2-enyl carbonate 1332523-90-6 C24H26F3NO7
    4-methylphenyl (Z)-3-{3,4,5-trimethoxy-2-[2-(trifluoroacetylamino)ethyl]phenyl}prop-2-enyl carbonate
    —— 4-formyl-12-(2-methoxyphenyl)-[2.2]paracyclophane 1372559-94-8 C24H22O2
    4-formyl-12-(2-methoxyphenyl)-[2.2]paracyclophane
    —— 4-(2-benzoyloxy-3-oxo-butyryl)-morpholine 65287-92-5 C15H17NO5
    4-(2-benzoyloxy-3-oxo-butyryl)-morpholine
    —— 4-Chloro-2-nitro-N-(2-thiocyanatoethyl)aniline 100418-42-6 C9H8ClN3O2S
    4-Chloro-2-nitro-N-(2-thiocyanatoethyl)aniline
    —— 4-(carboxymethylthio)-11β-hydroxyandrostenedione 81983-21-3 C21H28O5S
    4-(carboxymethylthio)-11β-hydroxyandrostenedione