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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 4,5α-epoxy-3-methoxy-17-methyl-morphinan-6β,7β(or 6α,7α)-diol 110463-06-4 C18H23NO4
    4,5α-epoxy-3-methoxy-17-methyl-morphinan-6β,7β(or 6α,7α)-diol
    —— 4-amino-naphthalene-1-sulfonic acid 6-methyl-benzothiazol-2-ylamide 23085-69-0 C18H15N3O2S2
    4-amino-naphthalene-1-sulfonic acid 6-methyl-benzothiazol-2-ylamide
    —— 4-Amino-1-(pyridin-2-yl)cyclohexane-1-carbonitriledihydrochloride 2248349-30-4 C12H17Cl2N3
    4-Amino-1-(pyridin-2-yl)cyclohexane-1-carbonitriledihydrochloride
    —— 4-[(2R)-2-({[(2R)-2-hydroxy-2-(3-pyridinyl)ethyl]amino}methyl)-3,4-dihydro-2H-chromen-6-yl]-2-phenoxybenzoic acid 474112-96-4 C30H28N2O5
    4-[(2R)-2-({[(2R)-2-hydroxy-2-(3-pyridinyl)ethyl]amino}methyl)-3,4-dihydro-2H-chromen-6-yl]-2-phenoxybenzoic acid
    —— 4-[1-tert-Butoxycarbonyl-5-(2,3-dichloro-phenyl)-1H-pyrazol-3-yl]-piperidine-1-carboxylic acid tert-butyl ester 766545-84-0 C24H31Cl2N3O4
    4-[1-tert-Butoxycarbonyl-5-(2,3-dichloro-phenyl)-1H-pyrazol-3-yl]-piperidine-1-carboxylic acid tert-butyl ester
    —— (4aS)-7t-hydroxy-1-pyridin-2-yl-(4ar,7at)-4a,6,7,7a-tetrahydro-1H-furo[3,2-c]pyridazin-4-one pyridin-2-yl-hydrazone 50611-50-2 C16H16N6O2
    (4aS)-7t-hydroxy-1-pyridin-2-yl-(4ar,7at)-4a,6,7,7a-tetrahydro-1H-furo[3,2-c]pyridazin-4-one pyridin-2-yl-hydrazone
    —— 4,4'-(phenylmethylene)bis(1-benzyl-3-methyl-1H-pyrazol-5-ol) 89936-62-9 C29H28N4O2
    4,4'-(phenylmethylene)bis(1-benzyl-3-methyl-1H-pyrazol-5-ol)
    —— 4,4'-((5S,6S,10R)-7-formyl-1-methyl-4-oxo-3-(4-(trifluoromethyl)phenyl)-2,3-diazaspiro[4.5]deca-1,7-diene-6,10-diyl)dibenzonitrile 1279704-10-7 C31H21F3N4O2
    4,4'-((5S,6S,10R)-7-formyl-1-methyl-4-oxo-3-(4-(trifluoromethyl)phenyl)-2,3-diazaspiro[4.5]deca-1,7-diene-6,10-diyl)dibenzonitrile
    —— 4-amino-naphthalene-1-sulfonic acid 4-(4-methoxy-phenyl)-thiazol-2-ylamide 23085-70-3 C20H17N3O3S2
    4-amino-naphthalene-1-sulfonic acid 4-(4-methoxy-phenyl)-thiazol-2-ylamide
    —— 4-(2-(cyclopropylidenemethyl)phenyl)-1-tosyl-1H-1,2,3-triazole-5-d 1638606-26-4 C19H17N3O2S
    4-(2-(cyclopropylidenemethyl)phenyl)-1-tosyl-1H-1,2,3-triazole-5-d
    —— (4S,1'S,2'S,3'R)-5-hydroxy-4-(3'-hydroxy-2',3'-dimethylcyclopentyl)pentyl pivalate 122058-46-2 C17H32O4
    (4S,1'S,2'S,3'R)-5-hydroxy-4-(3'-hydroxy-2',3'-dimethylcyclopentyl)pentyl pivalate
    —— 4-Methoxy-1-methyl-2-oxo-6-propyl-cyclohex-3-enecarboxylic acid ethyl ester 52451-94-2 C14H22O4
    4-Methoxy-1-methyl-2-oxo-6-propyl-cyclohex-3-enecarboxylic acid ethyl ester
    —— 4-Dimethylamino-2',3,4'-trinitro-trans-stilben 2571-14-4 C16H14N4O6
    4-Dimethylamino-2',3,4'-trinitro-trans-stilben
    —— 4-methyl-valeric acid-(4-phenylazo-phenacyl ester) 102181-82-8 C20H22N2O3
    4-methyl-valeric acid-(4-phenylazo-phenacyl ester)
    —— 4-(4-Nitro-benzoyl)-5-chlor-thiadiazol-(1,2,3) 90415-28-4 C9H4ClN3O3S
    4-(4-Nitro-benzoyl)-5-chlor-thiadiazol-(1,2,3)
    —— 4-Methyl-β-trimethylammonio-propiophenon-jodid 18698-46-9 C13H20NO*I
    4-Methyl-β-trimethylammonio-propiophenon-jodid
    —— 4-hexanoylamino-2-hydroxy-benzoic acid-(2-morpholino-ethyl ester); hydrochloride 111328-67-7 C19H28N2O5*ClH
    4-hexanoylamino-2-hydroxy-benzoic acid-(2-morpholino-ethyl ester); hydrochloride
    —— 4-amino-5-hydroxy-3-[4-(1-oxo-3-<i>p</i>-tolyl-inden-2-yl)-phenylazo]-naphthalene-2,7-disulfonic acid 124118-50-9 C32H23N3O8S2
    4-amino-5-hydroxy-3-[4-(1-oxo-3-<i>p</i>-tolyl-inden-2-yl)-phenylazo]-naphthalene-2,7-disulfonic acid
    —— 4-(Benzylcarbonylaminomethyl)-1-methyl-4-phenyl-piperidin 97017-86-2 C21H26N2O
    4-(Benzylcarbonylaminomethyl)-1-methyl-4-phenyl-piperidin
    —— 4,4'-Spiro-<1'-methyl-piperidin>-1-benzyl-1,2,3,4-tetrahydro-isochinolin 112049-20-4 C21H26N2
    4,4'-Spiro-<1'-methyl-piperidin>-1-benzyl-1,2,3,4-tetrahydro-isochinolin
    —— 4,4'-dimethyl-benzoin-hydrazone 139972-11-5 C16H18N2O
    4,4'-dimethyl-benzoin-hydrazone
    —— (+/-)-4-[5-(2-methyl-cyclohexylcarbamoyl)-naphthalene-1-sulfonylamino]-piperidine-1-carboxylic acid dimethylamide 723308-18-7 C26H36N4O4S
    (+/-)-4-[5-(2-methyl-cyclohexylcarbamoyl)-naphthalene-1-sulfonylamino]-piperidine-1-carboxylic acid dimethylamide
    —— 4-piperidin-1-yl-2-(piperidin-1-ylmethyl)-[1]benzofuro[3,2-d]pyrimidine 80551-12-8 C21H26N4O
    4-piperidin-1-yl-2-(piperidin-1-ylmethyl)-[1]benzofuro[3,2-d]pyrimidine
    —— 4-Benzyloxy-2-methyl-3-oxo-butyric acid pentyl ester 112638-27-4 C17H24O4
    4-Benzyloxy-2-methyl-3-oxo-butyric acid pentyl ester
    —— 4-methoxy-3-(4-hydroxyphenyl)thio-2,3-dihydro-1,1-dioxidebenzo[b]thiophene 246175-44-0 C15H14O4S2
    4-methoxy-3-(4-hydroxyphenyl)thio-2,3-dihydro-1,1-dioxidebenzo[b]thiophene
    —— 4-[1-[4-(2-Hydroxyethoxy)phenyl]-2-pyrrolidon-4-yl]methoxybenzoic acid 133747-42-9 C20H21NO6
    4-[1-[4-(2-Hydroxyethoxy)phenyl]-2-pyrrolidon-4-yl]methoxybenzoic acid
    —— 4-[1-(2-Hydroxy-benzoyl)-3-methyl-5-phenylamino-1H-pyrazol-4-ylazo]-benzenesulfonamide 130088-02-7 C23H20N6O4S
    4-[1-(2-Hydroxy-benzoyl)-3-methyl-5-phenylamino-1H-pyrazol-4-ylazo]-benzenesulfonamide
    —— 4-(1-{4-[N'-(3,5-diamino-6-chloropyrazine-2-carbonyl)guanidino]butyl}piperidin-4-yl)butyramide 877664-58-9 C19H32ClN9O2
    4-(1-{4-[N'-(3,5-diamino-6-chloropyrazine-2-carbonyl)guanidino]butyl}piperidin-4-yl)butyramide
    —— 4-[2-(2,5-Dioxopyrrol-1-yl)acetyl]oxybutyl 2-(2,5-dioxopyrrol-1-yl)acetate 216249-51-3 C16H16N2O8
    4-[2-(2,5-Dioxopyrrol-1-yl)acetyl]oxybutyl 2-(2,5-dioxopyrrol-1-yl)acetate
    —— (4-dimethylsulfamoyl-phenoxy)-acetic acid methyl ester 99987-21-0 C11H15NO5S
    (4-dimethylsulfamoyl-phenoxy)-acetic acid methyl ester
    —— 4-(1-methyl-1-tert-butylperoxyethyl)-4'-(1-methyl-1,2-dihydroxyethyl)-di-(1-methyl-1-phenylethyl) peroxide 83049-95-0 C28H42O6
    4-(1-methyl-1-tert-butylperoxyethyl)-4'-(1-methyl-1,2-dihydroxyethyl)-di-(1-methyl-1-phenylethyl) peroxide
    —— 4-chloro-5-iodo-2-methyl-7-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-7H-pyrrolo[2,3-d]pyrimidine 1536110-25-4 C33H25ClIN3O7
    4-chloro-5-iodo-2-methyl-7-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-7H-pyrrolo[2,3-d]pyrimidine
    —— 4-cyano-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-5-methylimidazole 108257-42-7 C16H19N3O7
    4-cyano-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-5-methylimidazole
    —— 4-(2-((2-phenylpropanoyl)amino)-4-phenylaminomethylphenyl)butanoic acid 499150-85-5 C26H28N2O3
    4-(2-((2-phenylpropanoyl)amino)-4-phenylaminomethylphenyl)butanoic acid
    —— 4-Chloro-2-{[(Z)-4-p-tolyl-thiazol-2-ylimino]-methyl}-phenol 102673-17-6 C17H13ClN2OS
    4-Chloro-2-{[(Z)-4-p-tolyl-thiazol-2-ylimino]-methyl}-phenol
    —— 4-{[(1R,2R,5S,10S,13R,14R,17S,19R)-5-(2-{[(tert-butoxy)carbonyl][(4-chlorophenyl)methyl]amino}acetyl)-1,2,14,18,18-pentamethyl-8-(propan-2-yl)pentacyclo[11.8.0.0<sup>2,10</sup>.0<sup>5,9</sup>.0<sup>14,19</sup>]henicos-8-en-17-yl]oxy}-2,2-dimethyl-4-oxobutanoic acid 1326312-25-7 C49H72ClNO7
    4-{[(1R,2R,5S,10S,13R,14R,17S,19R)-5-(2-{[(tert-butoxy)carbonyl][(4-chlorophenyl)methyl]amino}acetyl)-1,2,14,18,18-pentamethyl-8-(propan-2-yl)pentacyclo[11.8.0.0<sup>2,10</sup>.0<sup>5,9</sup>.0<sup>14,19</sup>]henicos-8-en-17-yl]oxy}-2,2-dimethyl-4-oxobutanoic acid
    —— 4-[2-(1-ethyl-4,4-dimethyl-1,2,3,4-tetrahydro-quinolin-7-yl)-heptyloxy]-benzoic acid 519179-21-6 C27H37NO3
    4-[2-(1-ethyl-4,4-dimethyl-1,2,3,4-tetrahydro-quinolin-7-yl)-heptyloxy]-benzoic acid
    —— 4-benzyl-3,6-dimethyl-2H-1,3-benzothiazin-3-ium;iodide 85460-22-6 C17H18NS*I
    4-benzyl-3,6-dimethyl-2H-1,3-benzothiazin-3-ium;iodide
    —— (4,4,9,9,-tetramethyl-5,8-diazadodecane-2,11-dione 2-isopropylidenehydrazone 11-acetylhydrazone)(perchlorato)nickel(II) perchlorate 91549-88-1 C19H38ClN6NiO5*ClO4
    (4,4,9,9,-tetramethyl-5,8-diazadodecane-2,11-dione 2-isopropylidenehydrazone 11-acetylhydrazone)(perchlorato)nickel(II) perchlorate
    —— 4-decanoylphenyl trifluoromethanesulfonate 1539286-67-3 C17H23F3O4S
    4-decanoylphenyl trifluoromethanesulfonate
    —— 4-[(4-chloro-phenyl)-phenyl-methyl]-piperazine-1-carboxylic acid methyl-(1-methyl-piperidin-4-yl)-amide 923933-31-7 C25H33ClN4O
    4-[(4-chloro-phenyl)-phenyl-methyl]-piperazine-1-carboxylic acid methyl-(1-methyl-piperidin-4-yl)-amide
    —— 4-iodophenyl-bis(4-methoxyphenyl)methanol 845272-48-2 C21H19IO3
    4-iodophenyl-bis(4-methoxyphenyl)methanol
    —— 4-(2-amino-3-ethoxyphenyl)sulfanyl-3-nitrobenzoic acid 91074-53-2 C15H14N2O5S
    4-(2-amino-3-ethoxyphenyl)sulfanyl-3-nitrobenzoic acid
    —— (4aS,10aS)-7-bromo-5-methylene-1,3,4,4a,5,10a-hexahydropyrano[3,4-b]chromene 1609694-58-7 C13H13BrO2
    (4aS,10aS)-7-bromo-5-methylene-1,3,4,4a,5,10a-hexahydropyrano[3,4-b]chromene
    —— 4-chloro-N-[2-(4-trifluoromethylphenyl)-2-oxoethyl]-3-nitrobenzamide 871928-45-9 C16H10ClF3N2O4
    4-chloro-N-[2-(4-trifluoromethylphenyl)-2-oxoethyl]-3-nitrobenzamide
    —— (4S)-4-[((4-[(morpholin-4-ylcarbonyl)oxy]-6-phenylpyridin-2-yl)carbonyl)amino]-5-oxo-5-(4-[(pentyloxy)carbonyl]piperazin-1-yl)pentanoic acid 1214285-41-2 C32H41N5O9
    (4S)-4-[((4-[(morpholin-4-ylcarbonyl)oxy]-6-phenylpyridin-2-yl)carbonyl)amino]-5-oxo-5-(4-[(pentyloxy)carbonyl]piperazin-1-yl)pentanoic acid
    —— 4,6-diethoxy-2-methyl-pyrimidine-5-carbonitrile 874495-30-4 C10H13N3O2
    4,6-diethoxy-2-methyl-pyrimidine-5-carbonitrile
    —— 4-{(4E)-5-{2-[(4-tert-butylbenzyl)oxy]phenyl}-3-[4-(5-oxo-4,5-dihydro-1,3,4-oxadiazol-2-yl)benzyl]pent-4-en-1-yl}benzoic acid 934754-76-4 C38H38N2O5
    4-{(4E)-5-{2-[(4-tert-butylbenzyl)oxy]phenyl}-3-[4-(5-oxo-4,5-dihydro-1,3,4-oxadiazol-2-yl)benzyl]pent-4-en-1-yl}benzoic acid
    —— 4-C-(2,3,4,6-tetra-O-benzyl-α-D-galactopyranosyl)-3-E-butene-1,2(S)-di-O-acetate 918334-60-8 C42H46O9
    4-C-(2,3,4,6-tetra-O-benzyl-α-D-galactopyranosyl)-3-E-butene-1,2(S)-di-O-acetate
    —— 4-benzyl-2,6-diphenylthiopyrylium perchlorate 41784-92-3 2Br*C48H40P2
    4-benzyl-2,6-diphenylthiopyrylium perchlorate