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    中文名称 英文名称 CAS号 化学式
    2,4-环庚二烯-1-酮 cyclohepta-2,4-dienone 1901-34-4 C7H8O
    2,4-环己二烯-1-醇,4-甲基-1-(1-甲基乙基)-(9CI) [(3S,8S,9S,10R,13S,14S,17R)-10,13-dimethyl-17-[(2S)-1-oxo-1-(pyren-1-ylmethoxy)propan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl] (E)-octadec-9-enoate 72535-39-8 C57H76O4
    2,4-环己二烯-1-酮,6-甲基-3-苯基-6-丙基- Hydroxytrimethoxy-2H-pyrano(2,3,4-kl)xanthen-2-one 87865-18-7 C18H14O7
    2,4-环己二烯-1-酮,6-[(1,3-二氢-1,3,3-三甲基-2H-吲哚-2-亚基)亚乙基]-4-硝基- 4-Nitro-6-[2-[1,3,3-trimethyl-1,3-dihydro-indol-(2E)-ylidene]-eth-(E)-ylidene]-cyclohexa-2,4-dienone 16650-15-0 C19H18N2O3
    2,4-环己二烯-1-酮,3-羟基-2-(3-羟基-1-羰基-3-苯基-2-丙烯基)-5-甲氧基-6,6-二甲基-(9CI) syzygiol 133056-30-1 C18H18O5
    2,4-环己二烯-1-羧酸,氯-1,6-二羟基- 2-Chloro-1,6-dihydroxycyclohexa-2,4-diene-1-carboxylic acid 139781-06-9 C7H7ClO4
    2,4-环己二烯-1,1,3-三甲腈,2-羟基-4-[[(4-甲氧苯基)亚肼基]甲基]-6,6-二甲基- 5,5-Dimethyl-1-hydroxy-3-(4'-methoxyphenyl)hydrazonomethyl-2,6,6-tricyanocyclohexadiene-1,3 147090-22-0 C19H17N5O2
    2,4-滴酸乙酯 ethyl 2,4-dichlorophenoxyacetate 533-23-3 C10H10Cl2O3
    2,4-滴硫钠 —— 136-78-7 C8H8Cl2NaO5S
    2,4-滴异辛酯 2,4-D 2-ethylhexyl ester 1928-43-4 C16H22Cl2O3
    2,4-滴异丙醇铵盐 2,4-D isopropanolamine salt 6365-72-6 C11H15Cl2NO4
    2,4-滴异丁酯 2,4-dichlorophenoxyacetic acid isobutyl ester 1713-15-1 C12H14Cl2O3
    2,4-滴二甲胺盐 2,4-dichlorophenoxyacetic acid dimethylamine 2008-39-1 C2H7N*C8H6Cl2O3
    2,4-滴乙醇胺盐 2,4-dichlorophenoxyacetic acid monoethanolamine salt 3599-58-4 C2H7NO*C8H6Cl2O3
    2,4-滴丙酸甲酯 2-(2,4-dichlorophenoxy)propanoic acid methyl ester 23844-57-7 C10H10Cl2O3
    2,4-滴丙酸 2-(2,4-dichlorophenoxy)propionic acid 120-36-5 C9H8Cl2O3
    2,4-滴丁酸甲酯 4-(2,4-dichlorophenoxy)butyric acid methyl ester 18625-12-2 C11H12Cl2O3
    2,4-滴丁酯 butyl 2,4-dichlorophenoxyacetate 94-80-4 C12H14Cl2O3
    2,4-氨基嘧啶-5-羧酸 2,4-Diamino-5-pyrimidinecarboxylic acid 18588-61-9 C5H6N4O2
    2,4-氨基-6-甲氧基-1,3,5-三嗪 2,4-diamino-6-methoxy-1,3,5-triazine 2827-45-4 C4H7N5O
    2,4-氨基-6-(3-氟苯基)-1,3,5-三嗪 m-Fluorophenylguanamin 30530-43-9 C9H8FN5
    2,4-戊酸钬 Ho(III)(acetylacetonate)3 14589-33-4 C15H21HoO6
    2,4-戊硫醇二氧(杂)芑 pentane-2,4-dione dioxime 2157-56-4 C5H10N2O2
    2,4-戊烷二酮铷水合物 (Pentane-2,4-dionato-O,O')rubidium 66169-93-5 C5H7O2Rb
    2,4-戊烷二酮离子 acetylacetonate 17272-66-1 C5H7O2
    2,4-戊二醇二苯甲酸酯 (2R,4R)-2,4-pentanediol dibenzoate 59694-10-9 C19H20O4
    2,4-戊二醇,1,1-二氯-5-(3-羟基-5-甲氧苯基)-(9CI) citreochlorol 135352-11-3 C12H16Cl2O4
    2,4-戊二醇 pentane-1,3-diol 625-69-4 C5H12O2
    2,4-戊二酸铟 Indium(3+);pentane-2,4-dione 14405-45-9 C15H21InO6
    2,4-戊二酮酸铪 Hafnium, tetrakis(2,4-pentanedionato-kappaO2,kappaO4)-, (SA-8-11''11''1'1'''1'1''')- 17475-67-1 C20H28HfO8
    2,4-戊二酮,3-[氨基[(4,6-二甲基-2-嘧啶基)氨基]亚甲基]- 3-<N-(4,6-Dimethylpyrimidin-2-yl)diaminomethylene>pentane-2,4-dione 126266-92-0 C12H16N4O2
    2,4-戊二酮,3-[氨基(苯基氨基)亚甲基]- 3-[amino(anilino)methylidene]pentane-2,4-dione 114688-20-9 C12H14N2O2
    2,4-戊二酮,3-[氨基(乙硫基)亚甲基]- 3-<(ethylthio)aminomethylene>pentane-2,4-dione 139057-00-4 C8H13NO2S
    2,4-戊二酮,3-[氨基(丙基硫代)亚甲基]- 3-<(propylthio)aminomethylene>pentane-2,4-dione 139177-77-8 C9H15NO2S
    2,4-戊二酮,3-[[1-(三氟甲基)乙烯基]硫代]- 3-(1-Trifluoromethylvinylthio)-2,4-pentandione 139571-71-4 C8H9F3O2S
    2,4-戊二酮,3-[3-(三甲氧基甲硅烷基)丙基]- 3-acetyl-6-trimethoxysilylhexane-2-one 135524-69-5 C11H22O5Si
    2,4-戊二酮,3-(2-环己烯-1-基)- 3-(cyclohex-2-enyl)pentane-2,4-dione 106915-02-0 C11H16O2
    2,4-戊二酮,3-(1,3-二苯基-2-丙烯基)- 3-(1,3-diphenyl-2-propenyl)pentane-2,4-dione 171927-27-8 C20H20O2
    2,4-戊二酮,1,5-二氯 1,5-dichloropentane-2,4-dione 40630-12-4 C5H6Cl2O2
    2,4-戊二烯醛,5-[2,3-二[[(1,1-二甲基乙基)二甲基甲硅烷基]氧代]丙氧基]-,(E,E)- (2E,4E)-5-[2,3-Bis-(tert-butyl-dimethyl-silanyloxy)-propoxy]-penta-2,4-dienal 114515-60-5 C20H40O4Si2
    2,4-戊二烯醛,5-(4-甲氧基-5-甲基-2-羰基-2H-吡喃-6-基)-,(2E,4E)- 6-<4-formylbuta-1(E),3(E)-dienyl>-4-methoxy-5-methyl-2H-pyran-2-one 102103-72-0 C12H12O4
    2,4-戊二烯醛,3-甲基-5-(2-噻嗯基)-,(2Z,4E)- (2Z,4E)-3-methyl-5-(2-thienyl)penta-2,4-dienal 171015-48-8 C10H10OS
    2,4-戊二烯醛 2,4-pentadienal 764-40-9 C5H6O
    2,4-戊二烯酸,5-苯基-,乙基酯 ethyl 5-phenyl-2,4-pentadienoate 1552-95-0 C13H14O2
    2,4-戊二烯酸,5-氨基-2,4-二氰基-5-[(3-甲氧苯基)氨基]-,乙基酯,(E,E)- ethyl (2E,4E)-5-amino-2,4-dicyano-5-(3-methoxyanilino)penta-2,4-dienoate 130484-74-1 C16H16N4O3
    2,4-戊二烯酸,5-[3,4-二[(2-甲氧基乙氧基)甲氧基]苯基]-,(E,E)- (2E,4E)-5-(3,4-bis((2-methoxyethoxy)methoxy)phenyl)penta-2,4-dienoic acid 101619-63-0 C19H26O8
    2,4-戊二烯酸,5-(4-羟基-3-硝基苯基)-,(E,E)- 5-(4-Hydroxy-3-nitrophenyl)penta-2,4-dienoic acid 105183-12-8 C11H9NO5
    2,4-戊二烯酸,5-(3,4,5-三甲氧苯基)-,乙基酯,(2E,4E)- ethyl (2E,4E)-5-(3,4,5-trimethoxyphenyl)penta-2,4-dienoate 101620-05-7 C16H20O5
    2,4-戊二烯酸,4-甲氧基-5-(4-甲氧苯基)-,甲基酯,(2E,4Z)- Methyl (2E,4Z)-4-methoxy-5-(4-methoxyphenyl)penta-2,4-dienoate 131858-81-6 C14H16O4
    2,4-戊二烯酸,3-甲基-5-(2,6,6-三甲基-1-环己烯-1-基)-,乙基酯,(2E,4E)- (2E,4E)-ethyl 3-methyl-5-(2,6,6-trimethylcyclohex-1-enyl)penta-2,4-dienoate 17974-55-9 C17H26O2