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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 4-(tert-butyloxycarbonylaminomethyldimethylsilanyl)butan-1-ol 499773-85-2 C12H27NO3Si
    4-(tert-butyloxycarbonylaminomethyldimethylsilanyl)butan-1-ol
    —— 4-(2-tert-butoxycarbonyl-1-tert-butoxycarbonylamino-ethyl)-benzoic acid 920273-81-0 C19H27NO6
    4-(2-tert-butoxycarbonyl-1-tert-butoxycarbonylamino-ethyl)-benzoic acid
    —— (4,5-Dichloro-2-phenylsulfanyl-phenyl)-acetonitrile 93362-02-8 C14H9Cl2NS
    (4,5-Dichloro-2-phenylsulfanyl-phenyl)-acetonitrile
    —— (4R,5R,10R,11S,13S,17S)-11-Hydroxy-17-(2-hydroxy-acetyl)-10,13-dimethyl-tetradecahydro-20-oxa-cyclopropa[4,5]cyclopenta[a]phenanthren-3-one 111293-51-7 C21H30O5
    (4R,5R,10R,11S,13S,17S)-11-Hydroxy-17-(2-hydroxy-acetyl)-10,13-dimethyl-tetradecahydro-20-oxa-cyclopropa[4,5]cyclopenta[a]phenanthren-3-one
    —— (4'-Dimethylaminophenyl)-11,11'-di(16α,17α)-16-methoxycarbonyl-17-hydroxy-(<4aR-(4aα,13bβ,14aβ)>-1,2,3,4,4a,5,7,8,13,13b,14,14a-dodecahydrobenz<g>indolo<2,3-a>chinolizinyl)methan 78286-95-0 C51H61N5O6
    (4'-Dimethylaminophenyl)-11,11'-di(16α,17α)-16-methoxycarbonyl-17-hydroxy-(<4aR-(4aα,13bβ,14aβ)>-1,2,3,4,4a,5,7,8,13,13b,14,14a-dodecahydrobenz<g>indolo<2,3-a>chinolizinyl)methan
    —— 4,5-dichloro-2-ethyl-4,5-dimethyl-[1,2]oxaphospholane 2-oxide 32209-24-8 C7H13Cl2O2P
    4,5-dichloro-2-ethyl-4,5-dimethyl-[1,2]oxaphospholane 2-oxide
    —— 4-O-(β-D-galactopyranosyl)-1,2-O-[(R)-1-(methoxycarbonyl)ethylidene]-α-D-glucopyranose 1013916-32-9 C16H26O13
    4-O-(β-D-galactopyranosyl)-1,2-O-[(R)-1-(methoxycarbonyl)ethylidene]-α-D-glucopyranose
    —— 4,4'-azodi(phenylcyanamide) 332406-59-4 C14H10N6
    4,4'-azodi(phenylcyanamide)
    —— 4,5-dimethyl-2-phenyl-2,3-dihydro-[1,2]oxaphosphole 2-sulfide 40618-71-1 C11H13OPS
    4,5-dimethyl-2-phenyl-2,3-dihydro-[1,2]oxaphosphole 2-sulfide
    —— (4(5)-methylimidazolyl)HgSCN 93365-16-3 CNS*C4H5N2*Hg
    (4(5)-methylimidazolyl)HgSCN
    —— 4-'''-O-(dimethyl-t-butylsilyl)tylosin 90232-56-7 C52H91NO17Si
    4-'''-O-(dimethyl-t-butylsilyl)tylosin
    —— 4-hydroxy-2-oxotetrahydrofuran-3-yl 2-(2-(2,6-difluorophenyl)hydrazineyl)-2-oxoacetate 1256346-79-8 C12H10F2N2O6
    4-hydroxy-2-oxotetrahydrofuran-3-yl 2-(2-(2,6-difluorophenyl)hydrazineyl)-2-oxoacetate
    —— (4R,4aR,4'R,4a'R,7aR,7a'R,12bS,12b'S)-7,7'-(hydrazine-1,2-diylidene)bis(3-methyl-2,3,4,4a,5,6,7,7a-octahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-9-ol) 131387-52-5 C34H38N4O4
    (4R,4aR,4'R,4a'R,7aR,7a'R,12bS,12b'S)-7,7'-(hydrazine-1,2-diylidene)bis(3-methyl-2,3,4,4a,5,6,7,7a-octahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-9-ol)
    —— 4-Methyl-cyclohex-3-enecarboxylic acid 2-methoxy-3-methyl-cyclopent-2-enyl ester 100231-41-2 C15H22O3
    4-Methyl-cyclohex-3-enecarboxylic acid 2-methoxy-3-methyl-cyclopent-2-enyl ester
    —— 4-(1-cyanoethyl)phenyl acetate 1132795-53-9 C11H11NO2
    4-(1-cyanoethyl)phenyl acetate
    —— 4-(4-chlorophenyl)-1-[4-(4-fluorophenyl)-4-oxobutyl]piperidin-4-yl pent-4-ynoate 1622913-96-5 C26H27ClFNO3
    4-(4-chlorophenyl)-1-[4-(4-fluorophenyl)-4-oxobutyl]piperidin-4-yl pent-4-ynoate
    —— 4,6-di-O-acetyl-1,5-anhydro-2-deoxy-D-erythro-hex-1-en-3-ulose 105544-73-8 C10H12O6
    4,6-di-O-acetyl-1,5-anhydro-2-deoxy-D-erythro-hex-1-en-3-ulose
    —— 4-acetyl-4-methyl-6-phenylselenocyclohex-2-enone 97400-46-9 C15H16O2Se
    4-acetyl-4-methyl-6-phenylselenocyclohex-2-enone
    —— 4-(2-(((benzyloxy)carbonyl)amino)acetoxy)-N,N,N-trimethylbenzenaminium iodide 3339-63-7 C19H23N2O4*I
    4-(2-(((benzyloxy)carbonyl)amino)acetoxy)-N,N,N-trimethylbenzenaminium iodide
    —— 4,9-di(tert-butoxycarbonyl)-1,12-bis(2-nitrobenzenesulfonylamino)-4,9-diazadodecane 1238303-29-1 C32H48N6O12S2
    4,9-di(tert-butoxycarbonyl)-1,12-bis(2-nitrobenzenesulfonylamino)-4,9-diazadodecane
    —— 4,4-Difluor-4-chlor-3-difluorchlormethyl-but-2-en-1-saeure-ethylester 1513-38-8 C7H6Cl2F4O2
    4,4-Difluor-4-chlor-3-difluorchlormethyl-but-2-en-1-saeure-ethylester
    —— (4R,6R)-3,4,6-trimethylcyclohex-2-en-1-one 22886-15-3 C9H14O
    (4R,6R)-3,4,6-trimethylcyclohex-2-en-1-one
    —— 4-oxa-2,6,8-trithia-1,3,5,7-tetraphospha-tetracyclo[3.3.0.0.(3,7)]octan 172328-07-3 OP4S3
    4-oxa-2,6,8-trithia-1,3,5,7-tetraphospha-tetracyclo[3.3.0.0.(3,7)]octan
    —— (4'R,5'S,6'S)-(+)-dimethyl 3-5'-benzyloxy-6'-benzyloxymethyl-1',3'-dioxan-4'-yl-glutarate 102487-48-9 C26H32O8
    (4'R,5'S,6'S)-(+)-dimethyl 3-5'-benzyloxy-6'-benzyloxymethyl-1',3'-dioxan-4'-yl-glutarate
    —— (4R,5S)-4-((S)-2,2-dimethyl-1,3-dioxolan-4-yl)-2,2-dimethyl-5-vinyl-1,3-dioxolane 22893-94-3 C12H20O4
    (4R,5S)-4-((S)-2,2-dimethyl-1,3-dioxolan-4-yl)-2,2-dimethyl-5-vinyl-1,3-dioxolane
    —— 4-androstene-17β-propionyloxy-3-spiro-2'-(1',3'-oxathiolane) 81240-02-0 C24H36O3S
    4-androstene-17β-propionyloxy-3-spiro-2'-(1',3'-oxathiolane)
    —— 4(S)-(3,4-dichlorophenyl)-3,4-dihydro-N-methyl-1(2H)-naphthalenimine 1186422-36-5 C17H15Cl2N
    4(S)-(3,4-dichlorophenyl)-3,4-dihydro-N-methyl-1(2H)-naphthalenimine
    —— 4,7-dihydroxy-8-methyl-3-phenyl-2H-chromen-2-one 1206788-52-4 C16H12O4
    4,7-dihydroxy-8-methyl-3-phenyl-2H-chromen-2-one
    —— 4-((3S,5R,8R,9S,10S,13R,14S,17R)-3-((allyloxy)amino)-14-hydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)furan-2(5H)-one 1012079-87-6 C26H39NO4
    4-((3S,5R,8R,9S,10S,13R,14S,17R)-3-((allyloxy)amino)-14-hydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)furan-2(5H)-one
    —— 4-(4-(bis(2-chloroethyl)amino)phenyl)-N'-((2S,3R,4R)-2,3,4,5-tetrahydroxypentylidene)butanehydrazide 1256382-40-7 C19H29Cl2N3O5
    4-(4-(bis(2-chloroethyl)amino)phenyl)-N'-((2S,3R,4R)-2,3,4,5-tetrahydroxypentylidene)butanehydrazide
    —— {4-[tert-Butoxycarbonyl-(3-octadecanoylamino-propyl)-amino]-butyl}-[3-((Z)-octadec-9-enoylamino)-propyl]-carbamic acid tert-butyl ester 917499-63-9 C56H108N4O6
    {4-[tert-Butoxycarbonyl-(3-octadecanoylamino-propyl)-amino]-butyl}-[3-((Z)-octadec-9-enoylamino)-propyl]-carbamic acid tert-butyl ester
    —— 4-chloro-2,6-bis[2-methyl-(1,3-dioxolan-2-yl)]-pyridine 269054-59-3 C13H16ClNO4
    4-chloro-2,6-bis[2-methyl-(1,3-dioxolan-2-yl)]-pyridine
    —— 4-Phenyl-5H-[1,2]oxathiole 2,2-dioxide 84753-27-5 C9H8O3S
    4-Phenyl-5H-[1,2]oxathiole 2,2-dioxide
    —— (4-(N,N-dimethylaminophenyl))triphenylsilane 18840-19-2 C26H25NSi
    (4-(N,N-dimethylaminophenyl))triphenylsilane
    —— 4-(4-nitro-phenyl)-2-styryl-thiazole 93326-72-8 C17H12N2O2S
    4-(4-nitro-phenyl)-2-styryl-thiazole
    —— 4ξ-bromo-3,7,12-trioxo-5β(?)-cholan-24-oic acid 26425-62-7 C24H33BrO5
    4ξ-bromo-3,7,12-trioxo-5β(?)-cholan-24-oic acid
    —— 4-((3S,5R,8R,9S,10S,13R,14S,17R)-3-((benzyloxy)((3S,4S,5S)-3,4,5-trihydroxytetrahydro-2H-pyran-2-yl)amino)-14-hydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)furan-2(5H)-one 1012079-98-9 C35H49NO8
    4-((3S,5R,8R,9S,10S,13R,14S,17R)-3-((benzyloxy)((3S,4S,5S)-3,4,5-trihydroxytetrahydro-2H-pyran-2-yl)amino)-14-hydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)furan-2(5H)-one
    —— 4,5α-epoxy-6ξ,17-dimethyl-morphinan-3-ol 109562-53-0 C18H23NO2
    4,5α-epoxy-6ξ,17-dimethyl-morphinan-3-ol
    —— 4-cyclopropyl-2-(2,5-dichlorophenyl)-1,1,1-trifluorobut-3-yn-2-ol 1381993-87-8 C13H9Cl2F3O
    4-cyclopropyl-2-(2,5-dichlorophenyl)-1,1,1-trifluorobut-3-yn-2-ol
    —— 4',5'-Dihydro-5,5,5'-trihydroxyspiro<anthracene-9(10H),2'(3'H)-furan>-10-one 98703-74-3 C17H14O5
    4',5'-Dihydro-5,5,5'-trihydroxyspiro<anthracene-9(10H),2'(3'H)-furan>-10-one
    —— 4,5α-epoxy-3-methoxy-17-methyl-7-pentanoyl-6,7-didehydromorphinan 89178-29-0 C23H29NO3
    4,5α-epoxy-3-methoxy-17-methyl-7-pentanoyl-6,7-didehydromorphinan
    —— <4-Methoxy-anilin>-<3,4-dimethoxy-phenyl>-essigsaeure-nitril 98281-45-9 C17H18N2O3
    <4-Methoxy-anilin>-<3,4-dimethoxy-phenyl>-essigsaeure-nitril
    —— ((4S,4'S,5S)-2,2,2',2'-tetramethyl-[4,4'-bi(1,3-dioxolan)]-5-yl)methyl trifluoromethanesulfonate 935474-56-9 C12H19F3O7S
    ((4S,4'S,5S)-2,2,2',2'-tetramethyl-[4,4'-bi(1,3-dioxolan)]-5-yl)methyl trifluoromethanesulfonate
    —— 4-[2-(tert-butoxycarbonylamino)ethyl]-3-butyl-1-benzyl-1H-imidazol-3-ium bromide 1373501-30-4 Br*C21H32N3O2
    4-[2-(tert-butoxycarbonylamino)ethyl]-3-butyl-1-benzyl-1H-imidazol-3-ium bromide
    —— 4-hexadecyloxy-2-trifluoromethylbenzonitrile 1132110-17-8 C24H36F3NO
    4-hexadecyloxy-2-trifluoromethylbenzonitrile
    —— 4-chloro-4'-nitrobutyrophenone 93639-13-5 C10H10ClNO3
    4-chloro-4'-nitrobutyrophenone
    —— 4-chlorocarbonyl-4',5,5-trimethyltetrathiafulvalene 169259-76-1 C10H9ClOS4
    4-chlorocarbonyl-4',5,5-trimethyltetrathiafulvalene
    —— 4,5α-epoxy-3-methoxy-17-methyl-morphin-15-en-6-one 32426-90-7 C18H19NO3
    4,5α-epoxy-3-methoxy-17-methyl-morphin-15-en-6-one
    —— (4'S,5'R,6'R)-(-)-dimethyl 3-5'-benzyloxy-6'-benzyloxymethyl-1',3'-dioxan-4'-yl-glutarate 102487-48-9 C26H32O8
    (4'S,5'R,6'R)-(-)-dimethyl 3-5'-benzyloxy-6'-benzyloxymethyl-1',3'-dioxan-4'-yl-glutarate
    —— [4-({[4-(1,3-Dioxo-1,3-dihydro-isoindol-2-yl)-butyl]-[3-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-propyl]-carbamoyloxy}-methyl)-phenoxy]-acetic acid 313983-98-1 C33H31N3O9
    [4-({[4-(1,3-Dioxo-1,3-dihydro-isoindol-2-yl)-butyl]-[3-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-propyl]-carbamoyloxy}-methyl)-phenoxy]-acetic acid