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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 4,4,7-Trimethyl-1,2,3,4-tetrahydro-naphthalen-2-ol 130430-66-9 C13H18O
    4,4,7-Trimethyl-1,2,3,4-tetrahydro-naphthalen-2-ol
    —— 4-(2-semicarbazono-cyclopentyl)-butyric acid ethyl ester 88615-85-4 C12H21N3O3
    4-(2-semicarbazono-cyclopentyl)-butyric acid ethyl ester
    —— 4-({(aminoacetyl)[(trimethylsilyl)methyl]amino}methyl)-N-[2-amino-5-(2-thienyl)phenyl]benzamide 1112415-79-8 C24H30N4O2SSi
    4-({(aminoacetyl)[(trimethylsilyl)methyl]amino}methyl)-N-[2-amino-5-(2-thienyl)phenyl]benzamide
    —— (4-Tert-butylphenyl)-bis[2-[diethoxy(oxido)phosphaniumyl]-5-methylphenyl]phosphane 1615710-15-0 C32H45O6P3
    (4-Tert-butylphenyl)-bis[2-[diethoxy(oxido)phosphaniumyl]-5-methylphenyl]phosphane
    —— 4-[(S)-4-carboxy-2-({4-[2-(4-ethyl-piperazin-1-yl)-2-oxo-ethoxy]-quinoline-2-carbonyl}-amino)-butyryl]-piperazine-1-carboxylic acid ethyl ester 1073446-35-1 C30H40N6O8
    4-[(S)-4-carboxy-2-({4-[2-(4-ethyl-piperazin-1-yl)-2-oxo-ethoxy]-quinoline-2-carbonyl}-amino)-butyryl]-piperazine-1-carboxylic acid ethyl ester
    —— 4-(2-amino-1H-imidazol-4-yl)-N-(1-hexyl-heptyl)butyramide hydrochloride 1110786-17-8 C20H38N4O*ClH
    4-(2-amino-1H-imidazol-4-yl)-N-(1-hexyl-heptyl)butyramide hydrochloride
    —— 4-Methyl-2-thiocyanato-6(1H)-pyrimidon 37587-49-8 C6H5N3OS
    4-Methyl-2-thiocyanato-6(1H)-pyrimidon
    —— 4-(6-hexyl-3-oxoindan-5-sulfonyl)butyric acid 723760-39-2 C19H26O5S
    4-(6-hexyl-3-oxoindan-5-sulfonyl)butyric acid
    —— [4-(2-{2-cyclopentyl-4-hydroxy-5-[(6-methyl[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)methyl]-6-oxo-3,6-dihydro-2H-pyran-2-yl}ethyl)-2-ethylphenyl]acetonitrile 877131-23-2 C29H33N5O3
    [4-(2-{2-cyclopentyl-4-hydroxy-5-[(6-methyl[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)methyl]-6-oxo-3,6-dihydro-2H-pyran-2-yl}ethyl)-2-ethylphenyl]acetonitrile
    —— 4-(2-cbz-amino-ethanesulfonyl)-piperazine-2-one 800388-10-7 C14H19N3O5S
    4-(2-cbz-amino-ethanesulfonyl)-piperazine-2-one
    —— 4-(Oxolan-3-yl)piperidine hydrochloride 1461708-70-2 C9H18ClNO
    4-(Oxolan-3-yl)piperidine hydrochloride
    —— (4,5-Dimethyltriazol-1-yl) 4-methylbenzoate 122081-21-4 C12H13N3O2
    (4,5-Dimethyltriazol-1-yl) 4-methylbenzoate
    —— 4-Trimethylstannylbicyclo<3.2.1>octa-2,6-dien 86071-49-0 C11H18Sn
    4-Trimethylstannylbicyclo<3.2.1>octa-2,6-dien
    —— 4-[(2-chloro-7,8-dimethylquinolin-3-yl)methylthio]quinazoline 1305230-73-2 C20H16ClN3S
    4-[(2-chloro-7,8-dimethylquinolin-3-yl)methylthio]quinazoline
    —— (4R)-1-(tert-butyloxycarbonyl)-4-amino-L-proline tert-butyl ester 194163-86-5 C14H26N2O4
    (4R)-1-(tert-butyloxycarbonyl)-4-amino-L-proline tert-butyl ester
    —— 4-Aminomethyl-4-phenyl-cyclohexanol 603138-40-5 C13H19NO
    4-Aminomethyl-4-phenyl-cyclohexanol
    —— 4-((Z?)-benzylidene)-3-(4-bromo-phenyl)-4H-isoxazol-5-one 101081-22-5 C16H10BrNO2
    4-((Z?)-benzylidene)-3-(4-bromo-phenyl)-4H-isoxazol-5-one
    —— [(4aS,6S,7S,8R,8aR)-6-Allyl-2-(4-methoxy-phenyl)-8-methyl-hexahydro-pyrano[3,2-d][1,3]dioxin-7-yloxy]-tert-butyl-dimethyl-silane 808109-41-3 C24H38O5Si
    [(4aS,6S,7S,8R,8aR)-6-Allyl-2-(4-methoxy-phenyl)-8-methyl-hexahydro-pyrano[3,2-d][1,3]dioxin-7-yloxy]-tert-butyl-dimethyl-silane
    —— 4-(10-(2-tetrahydropyranyloxy)decanyloxy)-4'-[(S)-2-fluorooctyloxy]-biphenyl 683771-18-8 C35H53FO4
    4-(10-(2-tetrahydropyranyloxy)decanyloxy)-4'-[(S)-2-fluorooctyloxy]-biphenyl
    —— 4-methylidene-15-oxa-8α,14β-androstane 163513-74-4 C19H30O
    4-methylidene-15-oxa-8α,14β-androstane
    —— 4-[5-(4-methoxy-phenyl)-[1,3,4]oxadiazol-2-yl]-naphthalene-1,8-dicarboxylic acid anhydride 51641-47-5 C21H12N2O5
    4-[5-(4-methoxy-phenyl)-[1,3,4]oxadiazol-2-yl]-naphthalene-1,8-dicarboxylic acid anhydride
    —— 4-[3-(5-oxo-2-phenyl-oxazol-4-ylidene)-propenyl]-benzonitrile 57327-76-1 C19H12N2O2
    4-[3-(5-oxo-2-phenyl-oxazol-4-ylidene)-propenyl]-benzonitrile
    —— 4-(2-chloro-acetylamino)-<i>N</i>,<i>N</i>-dipropyl-benzenesulfonamide 22795-58-0 C14H21ClN2O3S
    4-(2-chloro-acetylamino)-<i>N</i>,<i>N</i>-dipropyl-benzenesulfonamide
    —— 4-iodomethyl-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-1,2,3-triazole 70964-83-9 C14H18IN3O7
    4-iodomethyl-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-1,2,3-triazole
    —— 4''-O-acetylavermectin B<sub>1a</sub> 71826-89-6 C50H74O15
    4''-O-acetylavermectin B<sub>1a</sub>
    —— 4-[2-(3-methyl-4-phenyl-3<i>H</i>-thiazol-2-ylidene)-ethylidene]-2,6-diphenyl-4,5-dihydro-2<i>H</i>-pyridazin-3-one 31487-49-7 C28H23N3OS
    4-[2-(3-methyl-4-phenyl-3<i>H</i>-thiazol-2-ylidene)-ethylidene]-2,6-diphenyl-4,5-dihydro-2<i>H</i>-pyridazin-3-one
    —— 4-(4-trifluoromethyl-phenylamino)-7-(3-trifluoromethyl-pyridin-2-yl)-pyrido[2,3-d]pyrimidine-2-carboxylic acid propylamide 714223-03-7 C24H18F6N6O
    4-(4-trifluoromethyl-phenylamino)-7-(3-trifluoromethyl-pyridin-2-yl)-pyrido[2,3-d]pyrimidine-2-carboxylic acid propylamide
    —— 4-chloro-2-(6-(4-methylphenyl)-2-(amino)pyrimidin-4-yl)phenol 89112-45-8 C17H14ClN3O
    4-chloro-2-(6-(4-methylphenyl)-2-(amino)pyrimidin-4-yl)phenol
    —— 4-Chloro-3-methyl-6-({[(pyridin-2-yl)methyl]amino}methylidene)cyclohexa-2,4-dien-1-one 918820-79-8 C14H13ClN2O
    4-Chloro-3-methyl-6-({[(pyridin-2-yl)methyl]amino}methylidene)cyclohexa-2,4-dien-1-one
    —— 4,4-Dimethyl-1-<4-methyl-phenyl>-5-isopropyloxy-pyrazolidinon-3 1221-33-6 C15H22N2O2
    4,4-Dimethyl-1-<4-methyl-phenyl>-5-isopropyloxy-pyrazolidinon-3
    —— 4-ethoxy-2-ethyl-5-methoxy-benzoic acid 860596-07-2 C12H16O4
    4-ethoxy-2-ethyl-5-methoxy-benzoic acid
    —— 4-(3-bromo-4-hydroxy-benzylidenamino)-benzaldehyde-thiosemicarbazone 106595-53-3 C15H13BrN4OS
    4-(3-bromo-4-hydroxy-benzylidenamino)-benzaldehyde-thiosemicarbazone
    —— 4-(4-bromo-2,6-diiodo-phenoxy)-phenol 76558-72-0 C12H7BrI2O2
    4-(4-bromo-2,6-diiodo-phenoxy)-phenol
    —— 4-amino-2-methyl-isoquinolinium; picrate 130831-60-6 C6H2N3O7*C10H11N2
    4-amino-2-methyl-isoquinolinium; picrate
    —— (4S,5R)-4-Methyl-5-phenylsulfanyl-3-(2,4,6-trimethyl-phenyl)-4,5-dihydro-isoxazole 90329-02-5 C19H21NOS
    (4S,5R)-4-Methyl-5-phenylsulfanyl-3-(2,4,6-trimethyl-phenyl)-4,5-dihydro-isoxazole
    —— 4-(β-D-erythrofuranosyl)-1-triphenylmethylimidazole 156719-30-1 C26H24N2O3
    4-(β-D-erythrofuranosyl)-1-triphenylmethylimidazole
    —— 4-ethyl-1,4-dihydro-1-methyl-2H,5H-pyrano<3,4-c>chromene-2,5-dione 136708-30-0 C15H14O4
    4-ethyl-1,4-dihydro-1-methyl-2H,5H-pyrano<3,4-c>chromene-2,5-dione
    —— 4-Methoxy-2-methylmercapto-benzolsulfonsaeure-amid 90090-43-0 C8H11NO3S2
    4-Methoxy-2-methylmercapto-benzolsulfonsaeure-amid
    —— 4-(2,3-Dimethyl-oxiranyl)-2,6-diphenyl-pyrimidine 130785-88-5 C20H18N2O
    4-(2,3-Dimethyl-oxiranyl)-2,6-diphenyl-pyrimidine
    —— 4-[[(2-Hydroxy-2-phenylethyl)-methylamino]methyl]-2-methoxyphenol 128942-61-0 C17H21NO3
    4-[[(2-Hydroxy-2-phenylethyl)-methylamino]methyl]-2-methoxyphenol
    —— 4,5-dihydro-[1]benzothiepino[5,4-d]thiadiazole 93622-25-4 C10H8N2S2
    4,5-dihydro-[1]benzothiepino[5,4-d]thiadiazole
    —— 4-(2-hydroxy-3-morpholin-4-yl-propyl)-2,5-dimethyl-piperazine-1-carboxylic acid methyl ester 94093-18-2 C15H29N3O4
    4-(2-hydroxy-3-morpholin-4-yl-propyl)-2,5-dimethyl-piperazine-1-carboxylic acid methyl ester
    —— 4-[[(3aR,5aR,5bR,7aR,9S,11aR,11bR,13aS)-3a-[[(3R)-3-aminopyrrolidine-1-carbonyl]amino]-5a,5b,8,8,11a-pentamethyl-2-oxo-1-propan-2-yl-4,5,6,7,7a,9,10,11,11b,12,13,13a-dodecahydro-3H-cyclopenta[a]chrysen-9-yl]oxy]-2,2-dimethyl-4-oxobutanoic acid;hydrochloride 1169849-81-3 C40H63N3O6*ClH
    4-[[(3aR,5aR,5bR,7aR,9S,11aR,11bR,13aS)-3a-[[(3R)-3-aminopyrrolidine-1-carbonyl]amino]-5a,5b,8,8,11a-pentamethyl-2-oxo-1-propan-2-yl-4,5,6,7,7a,9,10,11,11b,12,13,13a-dodecahydro-3H-cyclopenta[a]chrysen-9-yl]oxy]-2,2-dimethyl-4-oxobutanoic acid;hydrochloride
    —— 4-bromobenzoic acid 2'-acetyl-4'-bromophenyl ester 849367-85-7 C15H10Br2O3
    4-bromobenzoic acid 2'-acetyl-4'-bromophenyl ester
    —— 4-(1-Methyltetrazol-5-yl)sulfanyl-5-thiophen-2-ylthieno[2,3-d]pyrimidine 1222808-46-9 C12H8N6S3
    4-(1-Methyltetrazol-5-yl)sulfanyl-5-thiophen-2-ylthieno[2,3-d]pyrimidine
    —— 4-[[(3aR,5aR,5bR,7aR,9S,11aR,11bR,13aS)-3a-(cyclohexylcarbamoylamino)-5a,5b,8,8,11a-pentamethyl-2-oxo-1-propan-2-yl-4,5,6,7,7a,9,10,11,11b,12,13,13a-dodecahydro-3H-cyclopenta[a]chrysen-9-yl]oxy]-2,2-dimethyl-4-oxobutanoic acid 1169849-42-6 C42H66N2O6
    4-[[(3aR,5aR,5bR,7aR,9S,11aR,11bR,13aS)-3a-(cyclohexylcarbamoylamino)-5a,5b,8,8,11a-pentamethyl-2-oxo-1-propan-2-yl-4,5,6,7,7a,9,10,11,11b,12,13,13a-dodecahydro-3H-cyclopenta[a]chrysen-9-yl]oxy]-2,2-dimethyl-4-oxobutanoic acid
    —— <4-Isobutoxy-anilino>-essigsaeure-propylamid 1152-71-2 C15H24N2O2
    <4-Isobutoxy-anilino>-essigsaeure-propylamid
    —— 4-[(1S,2S,3R,5S)-3,5-Bis-(tert-butyl-dimethyl-silanyloxy)-2-hydroxymethyl-cyclopentyl]-butyric acid methyl ester 248926-43-4 C23H48O5Si2
    4-[(1S,2S,3R,5S)-3,5-Bis-(tert-butyl-dimethyl-silanyloxy)-2-hydroxymethyl-cyclopentyl]-butyric acid methyl ester
    —— 4-(E)-methoxybenzaldehyde O-(2S)-(1,1,1-trifluoro-3-nitro-2-(p-tolyl)propan-2-yl)oxime 1551093-38-9 C18H17F3N2O4
    4-(E)-methoxybenzaldehyde O-(2S)-(1,1,1-trifluoro-3-nitro-2-(p-tolyl)propan-2-yl)oxime
    —— 4-(2-chloroethylsulfonyl)-2,3,5,6-tetrafluorobenzoic acid chloride 1218778-83-6 C9H4Cl2F4O3S
    4-(2-chloroethylsulfonyl)-2,3,5,6-tetrafluorobenzoic acid chloride