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中文名称 英文名称 CAS号 化学式
(3'S)-1,3'-联吡咯烷 (S)-1,3’-bipyrrolidine 859282-12-5 C8H16N2
(3',5'-二甲基-4-联苯基)甲醇 (3',5'-dimethylbiphenyl-4-yl)methanol 885963-96-2 C15H16O
(2α,3β,5β,14xi,22R)-2,3,14,20,25-五羟基-6-羰基胆甾-7-烯-22-基α-D-吡喃半乳糖苷 Silenoside A 81655-86-9 C33H54O12
(2s,5r)-1-cbz-5-羟基-6-甲氧基哌啶甲酸甲酯 (2S,5R)-5-hydroxy-6-methoxy-piperidine-1,2-dicarboxylic acid 1-benzyl ester 2-methyl ester 824943-45-5 C16H21NO6
(2s,3s)-3-二苄基氨基-2-羟基-4-苯乙酸丁酯 (2S,3S)-O<sup>1</sup>-acetyl-3-dibenzylamino-4-phenylbutane-1,2-diol 871949-02-9 C26H29NO3
(2r,3s)-3-二苄基氨基-2-羟基-4-苯乙酸丁酯 3-(Dibenzylamino)-2-hydroxy-4-phenylbutyl acetate 871948-95-7 C26H29NO3
(2r)-2-[[(1,1-二甲基乙氧基)羰基]氨基]-8-壬烯酸 (R)-2-tert-butoxycarbonylamino-8-nonenoic acid 881683-84-7 C14H25NO4
(2r)-2-[(叔丁氧基羰基)氨基]-3-(2,5-二氟苯基)丙酸甲酯 (R)-N-(1,1-dimethylethoxycarbonyl)-2,5-difluorophenylalanine methyl ester 837430-11-2 C15H19F2NO4
(2e)-1-(2,5-二氟苯基)-3-苯基-2-丙烯-1-酮 (E)-1-(2,5-difluorophenyl)-3-phenylprop-2-en-1-one 877862-83-4 C15H10F2O
(2ci)-1-乙基-3-甲基异吲唑 1-ethyl-3-methyl-1<i>H</i>-indazole 861803-79-4 C10H12N2
(2beta,5alpha,8Xi,9Xi,14Xi,16beta,17beta)-17-乙酰氧基-16-(1-甲基-1-哌啶鎓基)-2-(1-哌啶基)雄甾烷溴化物 3-(Deacetoxy)vecuronium 85639-52-7 C32H55BrN2O2
(2beta,5alpha,16beta,17beta)-17-乙酰氧基-2,16-二(1-甲基-1-哌啶鎓基)雄甾烷二溴化物 3-(Deacetoxy)pancuronium 85639-54-9 C33H58Br2N2O2
(2beta,3alpha,5alpha,16beta,17beta)-3,17-二乙酰氧基-16-(1-甲基-1-哌啶鎓基)-2-(1-哌啶基)雄甾烷 Vecuronium 86029-43-8 C34H57N2O4+
(2beta,3alpha)-2,3-二羟基乌苏-12-烯-28-酸 2α,3β-dihydroxylurs-12-en-28-oic acid 856012-03-8 C30H48O4
(2aS,3S,4E,7bS)-4-亚乙基-3-羟基-2A,3,4,6,7,7B-六氢-2-氧杂-7A-氮杂环戊并[Cd]茚-1-酮 (+)-streptazoline and its E-ethylidene isomer 80152-07-4 C11H13NO3
(2aR,8bR)-2,2a,4,8b-四氢-2a,8b-二甲基-2- 亚甲基-环丁[c]喹啉-3(1H)-酮 2aR<sup>*</sup>,8bS<sup>*</sup>-8b-methyl-2-methylene-3-oxo-1,2,2a,3,4,8b-hexahydrocyclobuta<c>quinoline 85372-39-0 C13H13NO
(2aR,4aR,5R,8R,8aS)-2,2-二氯-2a-(4-氯苯基)-2,2a,4a,5,8,8a-六氢-1H,4H-5,8-甲基氮杂环[2,1-b]苯并[d][1,3]恶嗪-1-酮 (2aR,4aR,5R,8R,8aS)-2,2-dichloro-2a-(4-chlorophenyl)-2,2a,4a,5,8,8a-hexahydro-1H,4H-5,8-methanoazeto[2,1-b]benzo[d][1,3]oxazin-1-one 87768-93-2 C17H14Cl3NO2
(2a,3b,5a,6a,7a,20S)-6,7-环氧-20-羟基-白坚木替宁-3-羧酸甲酯 19-Hydroxyvenalstonidine 87387-67-5 C21H24N2O4
(2Z,5E)-1-(二甲氨基)庚二烯 (2Z,5E)-1-(dimethylamino)heptadiene 83862-26-4 C9H17N
(2Z,4Z)-1,1,1,2,3,4,5,6,6,6-十氟己-2,4-二烯 (Z,Z)-perfluoro-2,4-hexadiene 83168-65-4 C6F10
(2Z,4E,6Z,8E)-N-丁基-3,7-二甲基-9-(2,6,6-三甲基-1-环己烯基)壬-2,4,6,8-四烯酰胺 13-cis-N-Butylretinamide 84680-30-8 C24H37NO
(2Z,4E)-1,1,1,2,3,4,5,6,6,6-十氟己-2,4-二烯 (E,Z)-perfluoro-2,4-hexadiene 83168-66-5 C6F10
(2Z)-N-(4-甲氧基苄基)-1-甲基-2(1H)-嘧啶亚胺 (2E)-N-[(4-Methoxyphenyl)methyl]-1-methylpyrimidin-2(1H)-imine 805196-35-4 C13H15N3O
(2Z)-5-溴-5-甲基-3-苯基-2-(苯基亚胺)-1,3-噻嗪烷-4-酮 5-Bromotetrahydro-5-methyl-3-phenyl-2-(phenylimino)-4H-1,3-thiazin-4-one 86727-00-6 C17H15BrN2OS
(2Z)-3-氯-3-(4-氟苯基)-2-甲基丙烯醛 3-chloro-3-(4-fluorophenyl)-2-methylacrylaldehyde 83783-51-1 C10H8ClFO
(2Z)-3-氨基-3-(4-甲基苯基)丙烯醛 3-amino-3-(4-methylphenyl)-2-propenal 80815-65-2 C10H11NO
(2Z)-3-(4-硝基苯氧基)丙烯醛 3-(p-Nitrophenoxy)acrolein 86030-90-2 C9H7NO4
(2Z)-3-(4-甲酰基苯基)丙烯腈 (Z)-3-(4-formylphenyl)prop-2-enenitrile 86867-57-4 C10H7NO
(2Z)-2-亚乙基-1,2,3,11a-四氢-5H-吡咯并[2,1-c][1,4]苯并二氮卓-5-酮 (E)-prothracarcin 81542-99-6 C14H14N2O
(2Z)-2-(羟基亚甲基)-3-氧代齐墩果-12-烯-28-酸苯甲酯 (4aS,6aS,6bR,8aR,12aR,12bR,14bS)-11-[1-Hydroxy-meth-(Z)-ylidene]-2,2,6a,6b,9,9,12a-heptamethyl-10-oxo-1,3,4,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,13,14b-octadecahydro-2H-picene-4a-carboxylic acid benzyl ester 892869-59-9 C38H52O4
(2Z)-2-(5-甲基-1,2-二氢-3H-吡唑-3-亚基)氨基甲酰肼 3-Methyl-3-semicarbazido-pyrazol 81259-44-1 C5H9N5O
(2Z)-2-(2-异丙基环戊基亚基)丙腈 (2Z)-2-(2-propan-2-ylcyclopentylidene)propanenitrile 87184-46-1 C11H17N
(2X)-2-C-(1H-吲哚-3-基甲基)-alpha-L-苏-3-呋喃己糖酸gamma-内酯 Ascorbigen 8075-98-7 C15H15NO6
(2S-顺式)-3-(乙酰基氧基)-2,3-二氢-2-(4-甲氧基苯基)-1,5-苯并噻嗪革-4(5h)-酮 (2S,3S)-3-acetoxy-2-(4-methoxyphenyl)-2,3-dihydro-1,5-benzothiazepin-4(5H)-one 87447-47-0 C18H17NO4S
(2S-顺式)-3,3-二甲基-7-氧代-4-硫杂-1-氮杂双环[3.2.0]庚烷-2-羧酸 penicillanic acid 87-53-6 C8H11NO3S
(2S-反式)-1-[2,5-二氢-5-(羟甲基)-2-呋喃基]-5-甲基-2,4(1H,3H)-嘧啶二酮 1-(2,3-dideoxy-α-D-glycero-pent-2-enofuranosyl)thymine 84414-90-4 C10H12N2O4
(2S-(2alpha,5alpha,6beta(R*)))-6-((5-(乙酰氨基)-5-羧基-1-氧代戊基)氨基)-3,3-二甲基-7-氧代-4-硫杂-1-氮杂双环(3.2.0)庚烷-2-羧酸二钠盐 Disodium N-{1-carboxy-4-[(2-carboxy-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptan-6-yl)carboximidato]butyl}ethanimidate 84713-89-3 C16H21N3Na2O7S
(2S-(2R*(1S*,2E,4Z,6E)))-N-乙酰基-L-苯丙氨酸7-羧基-1-(2-甲基环氧乙烷基)-2,4,6-庚三烯基酯 AK-toxin II 85146-10-7 C22H25NO6
(2S,6s)-2,6-二苄基-2,3,5,6-四氢-1H-咪唑并[1,2-a]咪唑 (2S,6S)-2,6-di-Bn-2,3,5,6-tetrahydro-1H-imidazo[1,2-a]imidazole 877773-30-3 C19H21N3
(2S,6s)-2,6-二-叔丁基-2,3,5,6-四氢-1H-咪唑并[1,2-a]咪唑 guanidine 877773-38-1 C13H25N3
(2S,6S)-6-甲氧基四氢-2H-吡喃-2-甲醛 (2S,6S)-6-methoxyoxane-2-carbaldehyde 88595-34-0 C7H12O3
(2S,6S)-2-溴-8-氯-1,1,9-三甲基-5-甲亚基螺[5.5]十一碳-8-烯-3-酮 Elatone 80508-99-2 C15H20BrClO
(2S,6R)-4-氧代-2,6-二-(吡啶-4-基)-哌啶 (2S,6R)-4-oxo-2,6-di-(pyridin-4-yl)-piperidine 859172-56-8 C15H15N3O
(2S,5S)-吡咯啉-2,5-二羧酸 trans-(2S,5S)-pyrrolidine-2,5-dicarboxylic acid 81702-31-0 C6H9NO4
(2S,5S)-N-Boc-5-乙基吡咯烷-2-甲酸 (2S,5S)-1-(tert-butoxycarbonyl)-5-ethylpyrrolidine-2-carboxylic acid 847943-29-7 C12H21NO4
(2S,5R,6S)-二苯基甲基6-溴代-3,3-二甲基-7-氧代-4-硫杂-1-氮杂双环[3.2.0]庚烷-2-羧酸酯4-氧化物 benzhydryl 6α-bromopenicillanate-1-oxide 80353-26-0 C21H20BrNO4S
(2S,5R,6R)-6-{[5-(乙酰基氨基)-5-羧酸根戊酰基]氨基}-3,3-二甲基-7-羰基-4-硫杂-1-氮杂二环[3.2.0]庚烷-2-羧酸二钠 1-oleoyl-2-acetyl-glycerol 84746-00-9 C23H42O5
(2S,5R,6R)-3,3-二甲基-6-{[(5-甲基-3-苯基-1,2-噁唑-4-基)羰基]氨基}-7-羰基-4-硫杂-1-氮杂二环[3.2.0]庚烷-2-羧酸-(2S,5R,6R)-6-{[(2R)-2-氨基-2-苯乙酰]氨基}-3,3-二甲基-7-羰基-4-硫杂-1-氮杂二环[3.2.0]庚烷-2-羧 2-piperidin-1-ylethyl N-[2-(butoxymethyl)phenyl]carbamate;hydrochloride 80171-72-8 C19H31ClN2O3
(2S,5R)-5-羟基-2-哌啶甲酸盐酸盐 (2S,5R)-5-hydroxy-piperidine-2-carboxylic acid hydrochloride 824943-40-0 C6H11NO3*ClH
(2S,5R)-3,6-二乙氧基-2,5-二氢-2-[(2S)-2-[[4-甲氧基-3-(3-甲氧基丙氧基)苯基]甲基]-3-甲基丁基]-5-异丙基吡嗪 (2R,5S)-3,6-diethoxy-2-isopropyl-5-((S)-2-(4-methoxy-3-(3-methoxypropoxy)benzyl)-3-methylbutyl)-2,5-dihydropyrazine 866030-33-3 C28H46N2O5