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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 5α-Androst-16-en-6-on 29959-28-2 C19H28O
    5α-Androst-16-en-6-on
    —— 5,8-Ethanocycloocta[c]furan 23135-73-1 C12H10O
    5,8-Ethanocycloocta[c]furan
    —— 5,6-Dihydro-1,7-(epoxymethano)naphthalene 23639-46-5 C11H10O
    5,6-Dihydro-1,7-(epoxymethano)naphthalene
    —— 5H-Pyrrolo[3',4':3,4]cyclobuta[1,2-c]quinoline-6,7,9(8H)-trione 27797-88-2 C13H6N2O3
    5H-Pyrrolo[3',4':3,4]cyclobuta[1,2-c]quinoline-6,7,9(8H)-trione
    —— 5H-5,8-Methanobenzo[7]annulene 252-78-8 C12H10
    5H-5,8-Methanobenzo[7]annulene
    —— 5H-Pyrimido[4,5-b][1,4]benzothiazine 261-95-0 C10H7N3S
    5H-Pyrimido[4,5-b][1,4]benzothiazine
    —— 5H-Spiro[benzo[cd]indole-4,2'-[1,3]dioxolan]-5-one 21962-96-9 C13H9NO3
    5H-Spiro[benzo[cd]indole-4,2'-[1,3]dioxolan]-5-one
    —— 5-Oxa-1-azatricyclo[5.4.0.0~3,9~]undecane 256-07-5 C9H15NO
    5-Oxa-1-azatricyclo[5.4.0.0~3,9~]undecane
    —— 5-[Hydroxy(phenyl)methyl]furan-3-carboxylic acid 37744-70-0 C12H10O4
    5-[Hydroxy(phenyl)methyl]furan-3-carboxylic acid
    —— 5H-7,11-Methanofuro[3,4-g]naphtho[1,2-c][1,2]benzothiazine-8,10-dione 25118-87-0 C19H9NO3S
    5H-7,11-Methanofuro[3,4-g]naphtho[1,2-c][1,2]benzothiazine-8,10-dione
    —— 5H,7H-1,11-Ethanodibenzo[b,g][1,5]oxathiocine 29244-39-1 C16H14OS
    5H,7H-1,11-Ethanodibenzo[b,g][1,5]oxathiocine
    —— 5-[2-(3,5-Dimethylphenyl)ethyl]benzene-1,3-dicarbonitrile 398517-98-1 C18H16N2
    5-[2-(3,5-Dimethylphenyl)ethyl]benzene-1,3-dicarbonitrile
    —— (5S)-Hex-2-ene-1,5-diol 397250-25-8 C6H12O2
    (5S)-Hex-2-ene-1,5-diol
    —— 5-Chloro-6-(dodecylamino)pyrazine-2,3-dicarbonitrile 397250-14-5 C18H26ClN5
    5-Chloro-6-(dodecylamino)pyrazine-2,3-dicarbonitrile
    —— 5-hydroxy-1-methyl-3-phenyl-imidazolidine-2,4-dione 38655-48-0 C10H10N2O3
    5-hydroxy-1-methyl-3-phenyl-imidazolidine-2,4-dione
    —— 5-Chloro-3-[(pyridin-4-yl)methylidene]-1,3-dihydro-2H-indol-2-one 387343-41-1 C14H9ClN2O
    5-Chloro-3-[(pyridin-4-yl)methylidene]-1,3-dihydro-2H-indol-2-one
    —— 5-Methyl-1-(3-methylbutyl)-4,5-dihydro-1H-imidazol-2-amine 375395-34-9 C9H19N3
    5-Methyl-1-(3-methylbutyl)-4,5-dihydro-1H-imidazol-2-amine
    —— 5-Nitro-3-phenyl-2-phthalimidomethylindol 35411-59-7 C23H15N3O4
    5-Nitro-3-phenyl-2-phthalimidomethylindol
    —— 5-Brom-2-thiophenacryloyl-chlorid 31555-61-0 C7H4BrClOS
    5-Brom-2-thiophenacryloyl-chlorid
    —— 5-Methyl-7-(propan-2-yl)-2,3-dioxabicyclo[2.2.2]octane 35741-31-2 C10H18O2
    5-Methyl-7-(propan-2-yl)-2,3-dioxabicyclo[2.2.2]octane
    —— (5S)-5-(Tetradec-5-en-1-yl)oxolan-2-one 366468-93-1 C18H32O2
    (5S)-5-(Tetradec-5-en-1-yl)oxolan-2-one
    —— 5,7,7-Trimethyl-6,7-dihydro-5H-cyclopenta[b]pyridine 36358-26-6 C11H15N
    5,7,7-Trimethyl-6,7-dihydro-5H-cyclopenta[b]pyridine
    —— 5-Ethoxy-1,3-benzothiazole-2-sulfonamide 35203-92-0 C9H10N2O3S2
    5-Ethoxy-1,3-benzothiazole-2-sulfonamide
    —— 5-(Diethylamino)-2-[2-(4-nitrophenyl)ethenyl]phenol 334709-94-3 C18H20N2O3
    5-(Diethylamino)-2-[2-(4-nitrophenyl)ethenyl]phenol
    —— 5-Formylpyrrol-2-yl-2-furylmethan 34660-60-1 C10H9NO2
    5-Formylpyrrol-2-yl-2-furylmethan
    —— 5-(Aminomethyl)-2-hydroxybenzoic acid hydrochloride 33242-33-0 C8H10ClNO3
    5-(Aminomethyl)-2-hydroxybenzoic acid hydrochloride
    —— 5-Oxocyclohepta-1,3,6-triene-1-carbonitrile 34712-07-7 C8H5NO
    5-Oxocyclohepta-1,3,6-triene-1-carbonitrile
    —— 5-Amino-4,6-dihydroxy-2-phenylpyrimidin 34906-08-6 C10H9N3O2
    5-Amino-4,6-dihydroxy-2-phenylpyrimidin
    —— 5,5'-Oxybis[2-(4-phenoxyphenyl)-1H-isoindole-1,3(2H)-dione] 34335-81-4 C40H24N2O7
    5,5'-Oxybis[2-(4-phenoxyphenyl)-1H-isoindole-1,3(2H)-dione]
    —— 5,5,5-trifluoroleucine HCl salt 343328-82-5 C6H10F3NO2*ClH
    5,5,5-trifluoroleucine HCl salt
    —— 5,6-epoxy-2,3-dimethyl-cyclohexa-1,3-diene 38261-63-1 C8H10O
    5,6-epoxy-2,3-dimethyl-cyclohexa-1,3-diene
    —— 5,5,5-Trifluoro-3-(trifluoromethyl)pent-3-en-2-ol 32885-94-2 C6H6F6O
    5,5,5-Trifluoro-3-(trifluoromethyl)pent-3-en-2-ol
    —— 5-{[2-(Dimethylamino)phenyl]methylidene}-2-sulfanylidene-1,3-thiazolidin-4-one 32713-42-1 C12H12N2OS2
    5-{[2-(Dimethylamino)phenyl]methylidene}-2-sulfanylidene-1,3-thiazolidin-4-one
    —— 5,5-Dimethyl-2-oxooctahydro-1-benzofuran-7-yl acetate 312492-28-7 C12H18O4
    5,5-Dimethyl-2-oxooctahydro-1-benzofuran-7-yl acetate
    —— <5-Diaethylamino-pentanoyl>-mesidid 31640-19-4 C18H30N2O
    <5-Diaethylamino-pentanoyl>-mesidid
    —— 5,6-dichloro-2,3-dihydropyran 31518-32-8 C5H6Cl2O
    5,6-dichloro-2,3-dihydropyran
    —— 5-Piperidin-1-yl-pentanoic acid (2,4,6-trimethyl-phenyl)-amide 31518-84-0 C19H30N2O
    5-Piperidin-1-yl-pentanoic acid (2,4,6-trimethyl-phenyl)-amide
    —— 5-Ethenyl-1,3-oxazole-2(3H)-thione 32322-49-9 C5H5NOS
    5-Ethenyl-1,3-oxazole-2(3H)-thione
    —— 5-Bromo-8-hydroxychinolin-7-sulfonsaeure 3062-38-2 C9H6BrNO4S
    5-Bromo-8-hydroxychinolin-7-sulfonsaeure
    —— 5-butyl-1-phenyl-imidazolidine-2,4-dione 30747-77-4 C13H16N2O2
    5-butyl-1-phenyl-imidazolidine-2,4-dione
    —— 5-Methyl-2-propan-2-ylphenol;phosphorous acid 31502-40-6 C30H45O6P
    5-Methyl-2-propan-2-ylphenol;phosphorous acid
    —— 5-Ethyl-4,6-bis(hydroxymethyl)-1,3,5-triazin-2(5H)-one 37624-51-4 C7H11N3O3
    5-Ethyl-4,6-bis(hydroxymethyl)-1,3,5-triazin-2(5H)-one
    —— 5-[5-(4-Fluorophenyl)-1,3,4-oxadiazol-2-yl]benzene-1,3-diol 387866-93-5 C14H9FN2O3
    5-[5-(4-Fluorophenyl)-1,3,4-oxadiazol-2-yl]benzene-1,3-diol
    —— 5-Azido-1,3-dichloro-2-nitrosobenzene 304883-50-9 C6H2Cl2N4O
    5-Azido-1,3-dichloro-2-nitrosobenzene
    —— 5-Nitro-2-dichlormethyl-benzimidazol 30183-19-8 C8H5Cl2N3O2
    5-Nitro-2-dichlormethyl-benzimidazol
    —— 5-({1-[2,3-Bis(dodecanoyloxy)propyl]-3-oxo-3H-phenoxazin-7-yl}oxy)-5-oxopentanoate 301530-13-2 C44H62NO10-
    5-({1-[2,3-Bis(dodecanoyloxy)propyl]-3-oxo-3H-phenoxazin-7-yl}oxy)-5-oxopentanoate
    —— 5-[(2,2-Diphenylethyl)amino]-N,N,N-trimethylpentan-1-aminium 390387-21-0 C22H33N2+
    5-[(2,2-Diphenylethyl)amino]-N,N,N-trimethylpentan-1-aminium
    —— 5,7-Dichloro-3-(furan-2-yl)[1,2,4]triazolo[4,3-c]pyrimidine 394652-88-1 C9H4Cl2N4O
    5,7-Dichloro-3-(furan-2-yl)[1,2,4]triazolo[4,3-c]pyrimidine
    —— 5-Phenyl-2-(2-phenylethenyl)-3,4-dihydro-2H-pyrrole 389091-95-6 C18H17N
    5-Phenyl-2-(2-phenylethenyl)-3,4-dihydro-2H-pyrrole
    —— 5-Oxo-L-prolyl-L-tyrosyl-N~5~-(diaminomethylidene)-L-ornithyl-L-tryptophanamide 33526-55-5 C31H39N9O6
    5-Oxo-L-prolyl-L-tyrosyl-N~5~-(diaminomethylidene)-L-ornithyl-L-tryptophanamide