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    中文名称 英文名称 CAS号 化学式
    4-(3',5'-二溴-4-羟基苯基)氨基-6,7-二甲氧基喹唑啉 2,6-dibromo-4-(6,7-dimethoxy-quinazolin-4-ylamino)-phenol 211555-05-4 C16H13Br2N3O3
    4-(2’,6’-二甲基苯氧基)邻苯二甲腈 4-(2',6'-dimethylphenoxy)phthalonitrile 221302-75-6 C16H12N2O
    4-(2-茚满基)-1-甲基-哌啶富马酸盐 4-Indan-2-yl-1-methyl-piperidine; compound with (E)-but-2-enedioic acid 20845-56-1 C4H4O4*C15H21N
    4-(2-苯氧基乙氧基)苯甲酸 4-(2-phenoxy ethoxy)benzoic acid 22219-63-2 C15H14O4
    4-(2-苯并恶唑-2-基乙烯基)-N,N-二甲基苯胺 (E)-4-(2-(benzo[d]oxazol-2-yl)vinyl)-N,N-dimethylaniline 24675-13-6 C17H16N2O
    4-(2-苯并噻唑)-5-异噁唑胺 4-(1H-benzo[d]thiazol-2-yl)isoxazol-5-amine 208938-48-1 C10H7N3OS
    4-(2-苯基苯甲酰基)氨基苯甲酸乙酯 ethyl 4-(2-phenylbenzoyl)aminobenzoate 217495-89-1 C22H19NO3
    4-(2-苯基乙炔基)苯甲酰氯 4-(phenylethynyl)benzoyl chloride 25851-08-5 C15H9ClO
    4-(2-苯基丙烷-2-基)苯酚磷酸盐 Phosphoric acid--4-(2-phenylpropan-2-yl)phenol (1/3) 20056-52-4 C45H51O7P
    4-(2-苯基-丙烯基)-吗啉 4-(2-phenyl-propenyl)-morpholine 28478-27-5 C13H17NO
    4-(2-苯基-1H-咪唑-4-基)吡啶 4-(2-phenyl-1H-imidazol-4-yl)pyridine 234766-97-3 C14H11N3
    4-(2-苯基-1-乙炔)苯甲腈 4-(2-phenylethynyl)benzonitrile 29822-79-5 C15H9N
    4-(2-苯基-1,3-噻唑-4-基)苯胺 4-(2-phenyl-thiazol-4-yl)-aniline 25021-48-1 C15H12N2S
    4-(2-肼基乙基)吗啉盐酸盐 4-(2-hydrazinylethyl)morpholine hydrochloride 2154-23-6 C6H15N3O*ClH
    4-(2-羟基苯基)丁酸乙酯 γ-(2-Hydroxy-phenyl)-buttersaeure-ethylester 20921-17-9 C12H16O3
    4-(2-羟基甲基)-1-哌嗪羧酸, 1,1-二甲基乙酯 tert-butyl 4-(hydroxymethyl)piperazine-1-carboxylate 239066-69-4 C10H20N2O3
    4-(2-羟基乙胺基)-2-甲基酞嗪-1-酮 4-(2-hydroxy-ethylamino)-2-methyl-2<i>H</i>-phthalazin-1-one 23238-72-4 C11H13N3O2
    4-(2-羟基乙氧基)苯甲醛 4-(2-hydroxy-ethoxy)-benzaldehyde 22042-73-5 C9H10O3
    4-(2-羟基乙氧基)苯甲酸乙酯 ethyl 4-(2-hydroxyethoxy)benzoate 25389-23-5 C11H14O4
    4-(2-羟基乙氧基)-3-甲氧基苯甲酸甲酯 methyl 4-(2-hydroxyethoxy)-3-methoxybenzoate 21903-52-6 C11H14O5
    4-(2-羟基乙基)哌嗪-2-酮 4-(2-hydroxyethyl)-2-piperazinone 23936-04-1 C6H12N2O2
    4-(2-羟基乙基)哌嗪-1-甲酰亚胺酰胺硫酸盐(盐) 4-(2-Hydroxyethyl)piperazine-1-carboximidamide sulfate (salt) 28457-23-0 C7H18N4O5S
    4-(2-羟基乙基)-4-甲基哌啶-1-羧酸叔丁酯 tert-butyl 4-(2-hydroxyethyl)-4-methylpiperidine-1-carboxylate 236406-33-0 C13H25NO3
    4-(2-羟基乙基)-4-(羟基甲基)-1-哌啶羧酸 1,1-二甲基乙酯 1,1-dimethylethyl 4-(2-hydroxyethyl)-4-(hydroxymethyl)-1-piperidinecarboxylate 236406-38-5 C13H25NO4
    4-(2-羟基乙基)-3-甲基-5-氧代-2,5-二氢-1H-吡唑-1-甲脒 1-amidino-4-(2-hydroxyethyl)-3-methyl-3-pyrazolin-5-one 210417-12-2 C7H12N4O2
    4-(2-羟基乙基)-3-甲基-2-哌嗪酮 3-Methyl-4-(2-hydroxyethyl)-2-oxopiperazin 23936-06-3 C7H14N2O2
    4-(2-羟基乙基)-3,3-二甲基-哌嗪酮 3,3-Dimethyl-4-(2-hydroxyethyl)-2-oxopiperazin 22492-72-4 C8H16N2O2
    4-(2-羟基乙基)-1-哌嗪甲醛 1-Formyl-4-(2-hydroxyethyl)piperazine 25209-64-7 C7H14N2O2
    4-(2-羟基乙基)-1,4-哌啶二羧酸 1-(1,1-二甲基乙基) 4-乙酯 4-ethoxycarbonyl-4-(2-hydroxyethyl)piperidine-1-carboxylic acid tert-butyl ester 247133-32-0 C15H27NO5
    4-(2-羟基丙烷-2-基)苯酚 2-(4-hydroxyphenyl)-2-propanol 2948-47-2 C9H12O2
    4-(2-羟基丙烷-2-基)呋喃-2-磺酰胺 4-(2-hydroxypropan-2-yl)furan-2-sulfonamide 210827-34-2 C7H11NO4S
    4-(2-羟基-5-丙基苯基)-4-氧丁酸 4-(2-Hydroxy-5-propylphenyl)-4-oxobutanoic acid 248595-24-6 C13H16O4
    4-(2-羟基-2-丙基)-1H-吡唑-3-羧酸 4-(1-hydroxy-1-methylethyl)-1H-3(5)-pyrazolecarboxylic acid 289041-82-3 C7H10N2O3
    4-(2-羟基-1,1-二甲基乙基)-N-[6-(2-羟基乙氧基)-5-(2-甲氧基苯氧基)-2,2'-联嘧啶-4-基]苯磺酰胺 (1S,3S)-1-Oxo-1lambda~4~,4-thiazinane-3-carboxylic acid 271251-14-0 C5H9NO3S
    4-(2-羟乙基)硫代吗啉-1,1-二氧化物 4-(2-hydroxyethyl)thiomorpholine 1,1-dioxide 26475-62-7 C6H13NO3S
    4-(2-碘代乙酰氨基)-2,2,6,6-四甲基哌啶-1-氧基自由基 4-(α)-iodoacetamido-2,2,6,6-tetramethylpiperidino-1-oxy 25713-24-0 C11H20IN2O2
    4-(2-碘乙基-(3-碘丙基)氨基)苯磺酰胺 Sulfanilamide, N(sup 4)-(2-iodoethyl)-N(sup 4)-(2-iodopropyl)- 2045-12-7 C11H16I2N2O2S
    4-(2-碘乙基)环己酮 4-(2-Iodo-ethyl)-cyclohexanone 219945-60-5 C8H13IO
    4-(2-硝基苯氨基)-吡啶 2-Nitro-N-(4'-pyridyl)aniline 25551-59-1 C11H9N3O2
    4-(2-硝基苯基)丁酸甲酯 methyl 4-(o-nitrophenyl)butyrate 22824-20-0 C11H13NO4
    4-(2-硝基苯基)丁-3-烯-2-酮 (E)-4-(2-nitrophenyl)but-3-en-2-one 20766-40-9 C10H9NO3
    4-(2-硝基苯基)-1-(二甲氨基)-1-氮杂-1,3-丁二烯 4-(2-nitrophenyl)-1-(dimethylamino)-1-aza-1,3-butadiene 283152-31-8 C11H13N3O2
    4-(2-硝基乙烯基)苯甲酸甲酯 4-(2-Nitrovinyl)benzoic acid methyl ester 22568-50-9 C10H9NO4
    4-(2-硝基丁基)吗啉 4-(2-nitrobutyl)morpholine 2224-44-4 C8H16N2O3
    4-(2-硝基-4-(三氟甲基)苯氧基)-苯胺 Benzeneamine, 4-(2-nitro-4-(trifluoromethyl)phenoxy)- 24219-87-2 C13H9F3N2O3
    4-(2-硝基-1-苯基-丙基)-吗啉 4-((1<i>RS</i>,2<i>SR</i>)-2-nitro-1-phenyl-propyl)-morpholine 28612-58-0 C13H18N2O3
    4-(2-硝基-1-苯基-丙基)-吗啉 4-((1<i>RS</i>,2<i>RS</i>)-2-nitro-phenyl-propyl)-morpholine 28612-58-0 C13H18N2O3
    4-(2-甲氧基苯基)苯胺 2'-Methoxy-biphenyl-4-ylamine 263901-48-0 C13H13NO
    4-(2-甲氧基苯基)吗啉 N-(2-methoxyphenyl)morpholine 27347-13-3 C11H15NO2
    4-(2-甲氧基苯基)-2(3H)-噻唑酮腙 4-(2-Methoxyphenyl)-2(3h)-thiazolone hydrazone 299169-54-3 C10H11N3OS