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    中文名称 英文名称 CAS号 化学式
    (2β,3α)-2,3-二羟基齐墩果-12-烯-28-酸 (2β,3α)-dihydroxyolean-12-en-28-oic acid 5957-40-4 C30H48O4
    (2Ξ)-D-葡糖庚酸与硼酸的酯化物钠盐 Sodium 2-O-boronoheptonate 58450-10-5 C7H14BNaO10
    (2s,4r)-4-氟脯氨酸甲酯 methyl (2S,4R)-4-fluoropyrrolidine-2-carboxylate hydrochloride 58281-80-4 C6H10FNO2*ClH
    (2e)-3-{4-[氨基(亚氨基)甲基]苯基}丙烯酸乙酯盐酸盐 Ethyl 3-(4-carbamimidoylphenyl)prop-2-enoate;hydrochloride 55197-53-0 C12H15ClN2O2
    (2b,5a,16b)-2,16-二乙炔基-alpha-去甲雄甾烷-2,16-二醇 diethynyl-2α,16α nor-A 5α-androstanediol-2β,16β 52-74-4 C22H30O2
    (2b,3a,5a)-3-羟基-2-(4-吗啉基)-孕甾烷-20-酮 (2β,3α,5α)-3-hydroxy-2-(4-morpholinyl)pregnan-20-one 53-40-7 C25H41NO3
    (2alpha,3alpha)-2,3-二羟基乌苏-12-烯-28-酸 pygenic acid A 52213-27-1 C30H48O4
    (2aS,5aS,8aR,8bR)-十氢-2,2,5a,8a-四甲基-2H-萘并[1,8-bc]呋喃 (-)-maalioxide 53625-18-6 C15H26O
    (2aS,4aR,8aR)-2,2,4A-三甲基-8-亚甲基十氢环丁[c]茚 β-panasinsene 56684-97-0 C15H24
    (2a,3b,4b,19a)-2,3,19,23-四羟基-齐墩果-12-烯-28-酸 Sericic acid 55306-03-1 C30H48O6
    (2Z,6E,9E)-3,7-二甲基-8,11-二氧代-2,6,9-十二碳三烯醛 Isogyorinidal 55806-39-8 C14H18O3
    (2Z,4Z)-己二烯酸甲酯 3-Hydroxy-4-methoxy-2,3-dimethyl-butan 53892-35-6 C7H16O2
    (2Z,4E,6Z,8E)-3,7-二甲基-9-(2,6,6-三甲基-1-环己烯基)壬-2,4,6,8-四烯酸 9,13-di-cis-retinoic acid 5352-74-9 C20H28O2
    (2Z,4E)-1,1,1-三氟-4-(甲基亚胺)-2-戊烯-2-醇 2-Penten-2-ol, 1,1,1-trifluoro-4-(methylimino)- 524939-18-2 C6H8F3NO
    (2Z)4,6-二氧代辛-2-烯二酸 maleylacetoacetic acid 5698-52-2 C8H8O6
    (2Z)-4-[(4-溴苯基)氨基]-4-氧代-2-丁酸 N-(p-bromophenyl)maleamic acid 59256-47-2 C10H8BrNO3
    (2Z)-4-[(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-十七氟癸基)氧基]-4-氧代-2-丁烯酸 (3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-Heptadecafluorodecyl) hydrogen maleate 54950-04-8 C14H7F17O4
    (2Z)-4,5-二甲基-2-庚烯-3-醇 4,5-Dimethyl-2-hepten-3-OL 55956-37-1 C9H18O
    (2Z)-3-甲基-2-(亚硝基甲基亚基)-1H-苯并咪唑 N-Methyl-2-benzimidazolecarbaldehyde oxime 50534-83-3 C9H9N3O
    (2Z)-3-溴-2-丁烯酸 (Z)-3-Bromo-2-butenoic acid 591-02-6 C4H5BrO2
    (2Z)-3-氨基-3-(4-甲基苯基)-1-苯基-2-丙烯-1-酮 (Z)-3-amino-1-phenyl-3-(p-tolyl)prop-2-en-1-one 52939-90-9 C16H15NO
    (2Z)-3-(3-吡啶基)丙烯腈 (Z)-3-(3-pyridyl)acrylonitrile 54356-28-4 C8H6N2
    (2Z)-2-羟基亚胺-N-萘-2-基-乙酰胺 N-(Naphthalen-2-yl)-2-hydroxyimino-acetamide 5580-64-3 C12H10N2O2
    (2Z)-2-羟基亚胺-3-(4-硝基苯基)丙酸 2-(Hydroxyimino)-3-(p-nitrophenyl)propanoic acid 5456-47-3 C9H8N2O5
    (2Z)-2-甲氧基-2-(1,4,4,6,7-五甲基-2-氧代-喹啉-3-亚基)乙酸甲酯 Methyl (2Z)-methoxy(1,4,4,6,7-pentamethyl-2-oxo-1,4-dihydroquinolin-3(2H)-ylidene)acetate 5432-83-7 C18H23NO4
    (2Z)-2-氯-2-丁醛 2-chloro-2-butenal 53175-28-3 C4H5ClO
    (2Z)-2-氟-1-苯基-2-丁烯-1-酮 (Z)-2-fluoro-1-phenylbut-2-en-1-one 58089-74-0 C10H9FO
    (2Z)-2-庚烯-1-醇 (Z)-hept-2-en-1-ol 55454-22-3 C7H14O
    (2Z)-2-十二碳烯酸 cis-2-dodecenoic acid 55928-65-9 C12H22O2
    (2Z)-2-丁烯二酸二异癸基酯 Diisodecyl maleate 53817-61-1 C24H44O4
    (2Z)-2-[[5-(3,4-二甲基-5-硝基苯基)-2-呋喃基]亚甲基]-7-甲基-3-氧代-5-苯基-5H-噻唑并[3,2-a]嘧啶-6-羧酸乙酯 benzeneselenenic acid 5818-99-5 C6H6OSe
    (2Z)-2-[(2E)-3-(二甲基氨基)-2-丙烯-1-亚基]-3,4-二氢-1(2H)-萘酮 2-[3-(Dimethylamino)prop-2-enylidene]-3,4-dihydronaphthalen-1-one 56567-56-7 C15H17NO
    (2Z)-2-(硝基甲基烯)哌啶 2-(nitromethylene)-piperidine 57023-05-9 C6H10N2O2
    (2Z)-2-(硝基甲基烯)哌啶 2-Nitromethylene-piperidine 57023-05-9 C6H10N2O2
    (2Z)-2-(4-氟苯基)-3-苯基丙烯腈 (Z)-2-(4-fluorophenyl)-3-phenylacrylonitrile 54648-47-4 C15H10FN
    (2S3S)-2-羟基-3-甲基戊酸 (2S,3S)-2-Hydroxy-3-methylpentanoic acid 51576-04-6 C6H12O3
    (2S-(2a,6a,11R)-1,2,3,4,5,6-六氢-6,11-二甲基-3-(2-丙烯基)-2,6-亚甲基-3-苯并吗吩烷-8-醇盐酸盐 Alazocine, (+)- 58640-82-7 C17H23NO
    (2S,8R,9S,10S,13S,14S)-2-羟基-13-甲基-3,17-二氧代-2,6,7,8,9,11,12,14,15,16-十氢-1H-环戊二烯并[a]菲-10-甲醛 2β-hydroxy-19-oxoandrost-4-ene-3,17-dione 54592-52-8 C19H24O4
    (2S,6s)-2,6-二异丙基-2,3,5,6-四氢-1H-咪唑并[1,2-a]咪唑 (2S,6S)-2,6-di(propan-2-yl)-2,3,5,6-tetrahydro-1H-imidazo[1,2-a]imidazole 519038-82-5 C11H21N3
    (2S,6S)-2,6-二甲基哌嗪-1-羧酸叔丁酯 tert-butyl (2S,6S)-2,6-dimethylpiperazine-1-carboxylate 574007-66-2 C11H22N2O2
    (2S,6R)-2-{[(1R,2R)-2-乙基环丙基]甲基}-6-羟基-3,3-二甲基环己酮 (2S,6R)-2-((1R,2R)-2-Ethyl-cyclopropylmethyl)-6-hydroxy-3,3-dimethyl-cyclohexanone 515178-90-2 C14H24O2
    (2S,5r)-1-boc-2,5-二甲基哌嗪 tert-butyl (2S,5R)-2,5-dimethylpiperazine-1-carboxylate 548762-66-9 C11H22N2O2
    (2S,5S)-5-烯丙基吡咯烷-2-羧酸叔丁酯 (1S,2S)-5-allylproline tert-butyl ester 549521-70-2 C12H21NO2
    (2S,5R,6R)-3,3-二甲基-6-[[(R)-[[(4-辛基-2,3-二氧代哌嗪-1-基)羰基]氨基]苯基乙酰基]氨基]-7-氧代-4-硫杂-1-氮杂双环[3.2.0]庚烷-2-羧酸 6-(D-(-)-alpha-(4-Octyl-2,3-dioxo-1-piperazinecarboxamido)phenylacetamido)penicillanic acid 59703-98-9 C29H39N5O7S
    (2S,5R,6R)-3,3-二甲基-6-[[(R)-[[(4-甲基-2,3-二氧代哌嗪-1-基)羰基]氨基]苯基乙酰基]氨基]-7-氧代-4-硫杂-1-氮杂双环[3.2.0]庚烷-2-羧酸 6-(D-(-)-alpha-(4-Methyl-2,3-dioxo-1-piperazinecarboxamido)phenylacetamido)penicillanic acid 59723-60-3 C22H25N5O7S
    (2S,5R)-反式-5-羟基哌啶-2-甲酸 (2S,5R)-5-hydroxy-2-piperidinecarboxylic acid 50439-45-7 C6H11NO3
    (2S,5R)-2,5-二甲基-1-哌嗪羧酸甲酯 (2S,5R)-1-methoxycarbonyl-2,5-dimethylpiperazine 548762-61-4 C8H16N2O2
    (2S,4s)-4-氟-2-甲氧基羰基吡咯烷盐酸盐 (2S,4S)-methyl 4-fluoropyrrolidine-2-carboxylate hydrochloride 58281-79-1 C6H10FNO2*ClH
    (2S,4S)-2-氰基-4-氟-1-吡咯烷羧酸苄酯 benzyl (2S,4S)-2-cyano-4-fluoropyrrolidine-1-carboxylate 518047-78-4 C13H13FN2O2
    (2S,4S)-2-(羟甲基)-4-甲基吡咯烷-1-羧酸叔丁酯 tert-butyl (2S,4S)-2-(hydroxymethyl)-4-methylpyrrolidine-1-carboxylate 540501-56-2 C11H21NO3