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    中文名称 英文名称 CAS号 化学式
    5,5''-二甲基-[2,2':6',2''-三联吡啶]-4'-羧酸 5,5''-Dimethyl-2,2':6',2''-terpyridine-4'-carboxylic acid 294211-85-1 C18H15N3O2
    5,5''-二溴-2,2':6',2''-三联吡啶 5,5″-dibromo-2,2′:6′,2″-terpyridine 223463-10-3 C15H9Br2N3
    5,5''-二氯-2',5'-二氢-2,2''-二甲基-3,3':4',3''-三联噻吩 3,4-bis-[2,2'-dimethyl-5,5'-(dichlorodithienyl)]-2,5-dihydrothiophene 528604-88-8 C14H12Cl2S3
    5,5''-二(溴甲基)-2,2':6',2''-三联吡啶 5,5''-bis(bromomethyl)-2,2':6',2''-terpyridine 183187-82-8 C17H13Br2N3
    5,5'''-双十二烷基-2,2':5',2'':5'',2'''-四噻吩 5,5'''-didodecyl-2,2':5',2'':5'',2'''-quaterthiophene 153561-79-6 C40H58S4
    5,5'''-二己基-2,2':5',2'':5'',2'''-四噻吩 α,ω-dihexylquaterthiophene 132814-92-7 C28H34S4
    5,4'-二羟基-3,6,7,8,3'-五甲氧基黄酮 5,4'-dihydroxy-3,6,7,8,3'-pentamethoxyflavone 50439-47-9 C20H20O9
    5,4''-二羟基-6,7,8-三甲氧基黄酮 xanthomicrol 16545-23-6 C18H16O7
    5,4 '-二羟基黄酮 5,4'-dihydroxyflavone 6665-67-4 C15H10O4
    5,3,4-三羟基黄酮 5,3',4'-trihydroxyflavone 19852-25-6 C15H10O5
    5,3'-吲哚基-2-甲基恶唑 pimprinine 13640-26-1 C12H10N2O
    5,3'-二羟基-7,4'-二甲氧基黄酮 pilloin 32174-62-2 C17H14O6
    5,3'-二羟基-6,7,4',5'-四甲氧基黄酮 5-Hydroxy-2-(3-hydroxy-4,5-dimethoxyphenyl)-6,7-dimethoxychromen-4-one 111537-41-8 C19H18O8
    5,3'-二羟基-3,7,4'-三甲氧基黄酮 ayanin 572-32-7 C18H16O7
    5,3',4'-三羟基-3,7-二甲氧基黄酮 2-(3,4-dihydroxyphenyl)-5-hydroxy-3,7-dimethoxychromen-4-one 2068-02-2 C17H14O7
    5,3',4'-三羟基-3,6,7,8-四甲氧基黄酮 5,3',4'-Trihydroxy-3,6,7,8-tetramethoxyflavone 81943-52-4 C19H18O9
    5,25R-胆甾烯-3beta,26-二醇 (25R)-cholest-5-ene-3β,26-diol 20380-11-4 C27H46O2
    5,24,25-三甲氧基-2-氧杂三环[20.2.2.13,7]二十七碳-1(24),3(27),4,6,22,25-己烯 Robustol-trimethylaether 27825-39-4 C29H42O4
    5,24(28)-胆甾二烯-24-亚甲基-3beta-醇 24-methylene cholesterol 474-63-5 C28H46O
    5,22-二氢卟啉 5,22-Dihydroporphyrin 26660-92-4 C20H16N4
    5,2-二羟基黄酮 5,2’-dihydroxyflavone 6674-39-1 C15H10O4
    5,2-二氯-[2,4]-联吡啶 5,2'-Dichloro-2,4'-bipyridine 942206-21-5 C10H6Cl2N2
    5,2'-二甲氧基-6,7-亚甲二氧基黄烷酮 Betagarin 60132-69-6 C18H16O6
    5,2'-二氯-2,3'-二嘧啶 2',5-Dichloro-2,3'-bipyridine 942206-20-4 C10H6Cl2N2
    5,2',6'-三羟基-6,7,8-三甲氧基黄酮 5,2',6'-trihydroxy-6,7,8-trimethoxyflavone 98187-98-5 C18H16O8
    5,19-环氧-19,25-二甲氧基南瓜-6,23-二烯-3-醇 (19R,23E)-5β,19-epoxy-19,25-dimethoxycucurbita-6,23-dien-3β-ol 85372-72-1 C32H52O4
    5,17-二羟基-5,17,19-去甲孕甾-20-炔-3-酮 5,17β-Dihydroxy-19-nor-5α,17α-pregn-20-yn-3-one 101409-94-3 C20H28O3
    5,17-二十二碳二炔 docosa-5,17-diyne 168298-58-6 C22H38
    5,15-双(4-羧基苯基)卟啉 4,4'-(Porphyrin-5,15-diyl)dibenzoic acid 167777-26-6 C34H22N4O4
    5,15-二苯基-21H,23H-卟吩 5,15-Diphenyl-21H,23H-porphine 22112-89-6 C32H22N4
    5,15-二溴-10,20-二苯基卟啉 5,15-Dibromo-10,20-diphenylporphine 151256-86-9 C32H20Br2N4
    5,14-二羟基-3beta-[2-(3-甲基-1-氧代丁氧基)-1-氧代丙氧基]-19-氧代-5beta-心甾-20(22)-烯内酯 alpha-i-Valeryloxypropionyl-k-strophanthidin 63979-74-8 C31H44O9
    5,14-二羟基-3beta-(3-甲基-1-氧代丁氧基)-19-氧代-5beta-心甾-20(22)-烯内酯 i-Valeryl-k-strophanthidin 63979-73-7 C28H40O7
    5,14-二羟基-3-(5-羟基-3,4-二甲氧基-6-甲基四氢吡喃-2-基)氧基-13-甲基-17-(5-氧代-2H-呋喃-3-基)-2,3,4,6,7,8,9,11,12,15,16,17-十二氢-1H-环戊二烯并[a]菲-10-甲醛 mansonin 11037-26-6 C31H46O10
    5,14-二羟基-19-氧代-3beta-[(苯基乙酰基)氧基]-5beta-心甾-20(22)-烯内酯 k-Strophanthidin, phenylacetyl- 63979-71-5 C31H38O7
    5,14-二甲基-7,16-二苯基-1,5,10,14-四氮杂三环[14.2.2.27,10]二十二烷 3,12-Dimethyl-1,10-diphenyl-3,7,12,16-tetraaza-tricyclo<14,2,2,2<sup>7,10</sup>>docosan 13073-11-5 C32H48N4
    5,14-二乙酰基-7,16-二苯基-1,5,10,14-四氮杂三环[14.2.2.27,10]二十二烷 3,12-Diacetyl-1,10-diphenyl-3,7,12,16-tetraaza-tricyclo<14,2,2,2<sup>7,10</sup>>docosan 13073-17-1 C34H48N4O2
    5,14-二丁基十八烷 5,14-Dibutyloctadecane 55282-13-8 C26H54
    5,14,15-三羟基-6,8,10,12-二十碳四烯酸 5,14,15-Trihydroxyicosa-6,8,10,12-tetraenoic acid 92950-25-9 C20H32O5
    5,13-二羟基-8,16-二甲基-1,9-二氧杂环十六碳-3,11-二烯-2,10-二酮 (3Z,11Z)-5,13-dihydroxy-8,16-dimethyl-1,9-dioxacyclohexadeca-3,11-diene-2,10-dione 155326-45-7 C16H24O6
    5,12b-二氢异吲哚并[1,2-a]异喹啉-8(6H)-酮 5,12b-dihydroisoindolo[1,2-a]isoquinolin-8(6H)-one 17416-64-7 C16H13NO
    5,12:6,11:13,16:14,15-四乙桥三环[8.2.2.24,7]十六碳-1(12),4,6,10,13,15-六烯 <2.2.2.2.2.2>(1,2,3,4,5,6)cyclophane 60144-50-5 C24H24
    5,12-萘并萘醌 5,12-naphthacenequinone 1090-13-7 C18H10O2
    5,12-萘并萘二酮,8-乙酰基-10-[(3-氨基-2,3,6-三脱氧-a-L-来苏-六吡喃糖基)氧代]-7,8,9,10-四氢-6,8,11-三羟基-1-甲氧基-,自由基离子(1-),(8S,10S)-(9CI) 2beta-(Z),3alpha-(1E,3R)-3-(3-Hydroxy-(1-octenyl)bicyclo(3.1.1)hept-2-yl)-5-heptenoic acid 73543-47-2 C22H36O3
    5,12-双（（三异丙基甲硅烷基）乙炔基）并四苯 5,12-bis((triisopropylsilyl)ethynyl)tetracene 628316-50-7 C40H52Si2
    5,12-双(苯乙炔基)并四苯 5,12-Bis(phenylethynyl)naphthacene 18826-29-4 C34H20
    5,12-双(4-叔丁基醚)-2,9-双苝酰亚胺 11,22-Bis(4-tert-butylphenoxy)-7,18-bis(2-ethylhexyl)-7,18-diazaheptacyclo[14.6.2.22,5.03,12.04,9.013,23.020,24]hexacosa-1(22),2,4,9,11,13(23),14,16(24),20,25-decaene-6,8,17,19-tetrone 952684-26-3 C60H66N2O6
    5,12-二苯基并四苯 5,12-diphenyltetracene 27130-32-1 C30H20
    5,12-二羟基-6,8,14-二十碳三烯酸 10,11-dihydro-leukotriene B<sub>4</sub> 120904-46-3 C20H34O4
    5,12-二甲基屈 1,8-Dimethyl-chrysen 14250-05-6 C20H16