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    中文名称 英文名称 CAS号 化学式
    2,4-二氨基-5-苯基噻唑氢溴酸 5-phenyl-thiazole-2,4-diyldiamine; hydrobromide 6020-54-8 BrH*C9H9N3S
    2,4-二氨基-5-羟基-6-甲基嘧啶盐酸盐 2,4-diamino-5-hydroxy-6-methylpyrimidine hydrochloride 66204-88-4 C5H8N4O*ClH
    2,4-二氨基-5-甲基苯酚 2,4-Diamino-5-hydroxy-toluol 60268-17-9 C7H10N2O
    2,4-二氨基-5-嘧啶甲酰胺 2,4-Diamino-5-carbamoyl-pyrimidin 66131-74-6 C5H7N5O
    2,4-二氨基-5-(3-氟苄基)嘧啶 2,4-Diamino-5-(3-fluorobenzyl)pyrimidine 69945-57-9 C11H11FN4
    2,4-二氨基-5-(2,4-二氯苄基)嘧啶 5-(2,4-dichloro-benzyl)-pyrimidine-2,4-diamine 65321-42-8 C11H10Cl2N4
    2,4-二氨基-5,6,7,8-四氢-6-喹唑啉羧酸 2,4-diamino-5,6,7,8-tetrahydro-quinazoline-6-carboxylic acid 6974-25-0 C9H12N4O2
    2,4-二氧代吡咯烷-1-乙酸乙酯 1-ethoxycarbonylmethylpyrrolidine-2,4-dione 62613-80-3 C8H11NO4
    2,4-二氧代-5-甲基-己酸乙酯 ethyl 2,4-dioxo-5-methylhexanoate 64195-85-3 C9H14O4
    2,4-二氧代-1-苯基-1,2,3,4-四氢-5-嘧啶甲腈 1,2,3,4-Tetrahydro-2,4-dioxo-1-phenyl-5-pyrimidincarbonitril 6275-84-9 C11H7N3O2
    2,4-二氢-5-甲基-4-[(4-甲基-2-硝基苯基)偶氮]-3H-吡唑-3-酮 2,4-dihydro-5-methyl-4-[(4-methyl-2-nitrophenyl)azo]-3H-pyrazol-3-one 6358-49-2 C11H11N5O3
    2,4-二氢-5-甲基-2-苯基-3H-吡唑-3-亚胺 5-methyl-2-phenyl-2<i>H</i>-pyrazol-3-ylamine 6401-97-4 C10H11N3
    2,4-二氢-5-(4-甲基苯基)-3H-吡唑-3-酮 2,4-Dihydro-5-(4-methylphenyl)-3H-pyrazol-3-one 66076-78-6 C10H10N2O
    2,4-二氢-4-[(5-羟基-3-甲基-1-苯基-1H-吡唑-4基)亚甲基]-5-甲基-2-苯基-3H-吡唑-3-酮 4-[(5-Hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)methylene]-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one 61466-03-3 C21H18N4O2
    2,4-二氢-4-(3-二甲基氨基丙基)-2-乙基-3-甲基茚并[1,2-c]吡唑-4-醇 4-(3-dimethylamino-propyl)-2-ethyl-3-methyl-2,4-dihydro-indeno[1,2-<i>c</i>]pyrazol-4-ol 68946-10-1 C18H25N3O
    2,4-二氢-3-巯基-5-甲基-4-苯基-3H-1,2,4-三唑 5-methyl-4-phenyl-4H-1,2,4-triazole-3-thiol 6232-82-2 C9H9N3S
    2,4-二氢-2-乙基-3-甲基-4-(1-甲基-4-哌啶基)茚并[1,2-c]吡唑-4-醇 2-ethyl-3-methyl-4-(1-methyl-piperidin-4-yl)-2,4-dihydro-indeno[1,2-<i>c</i>]pyrazol-4-ol 68946-22-5 C19H25N3O
    2,4-二氢-1H-吡嗪并[2,1-b]喹唑啉-3,6-二酮 2,4-dihydro-1H-pyrazino[2,1-b]quinazoline-3,6-dione 651043-51-5 C11H9N3O2
    2,4-二氟苯甲酰氟化物 2,4-difluorobenzoyl fluoride 67640-39-5 C7H3F3O
    2,4-二氟苯基环丙基甲基酮 Cyclopropyl-(2,4-difluoro-phenyl)-methanone 60131-34-2 C10H8F2O
    2,4-二氟苯乙腈 (2,4-difluorophenyl)acetonitrile 656-35-9 C8H5F2N
    2,4-二氟戊烷 2,4-difluoropentane 66688-47-9 C5H10F2
    2,4-二氟三氟甲基苯 2,4-difluoro-1-(trifluoromethyl)benzene 64248-61-9 C7H3F5
    2,4-二氟-6-((三甲基甲硅烷基)乙炔基)苯胺 2,4-difluoro-6-((trimethylsilyl)ethynyl)aniline 684250-21-3 C11H13F2NSi
    2,4-二氟-5-硝基苯腈 2,4-difluoro-5-nitrobenzonitrile 67152-20-9 C7H2F2N2O2
    2,4-二氟-5-硝基吡啶 2,4-difluoro-5-nitropyridine 60186-15-4 C5H2F2N2O2
    2,4-二氟-5-甲酰基苯甲腈 2,4-difluoro-5-cyanobenzaldehyde 633327-10-3 C8H3F2NO
    2,4-二氟-3-硝基吡啶 2,4-difluoro-3-nitropyridine 60186-14-3 C5H2F2N2O2
    2,4-二异丁基苯酚 2,4-bis-dimethylethyl-phenol 65152-07-0 C14H22O
    2,4-二十一二炔酸 2,4-Heneicosadiynoic Acid 69288-33-1 C21H34O2
    2,4-二亚硝基-1-萘酚 1-Naphthalenol, 2,4-dinitroso- 68052-44-8 C10H6N2O3
    2,4-二乙酰基氨基甲苯 2,4-diacetylaminotoluene 6282-12-8 C11H14N2O2
    2,4-二乙基苯磺酸 1,3-Diaethyl-benzol-sulfonsaeure-(4) 63877-58-7 C10H14O3S
    2,4-二[[2,6-二羟基-3-[(4-硝基苯基)偶氮]苯基]偶氮]苯磺酸钠盐 —— 6473-04-7 C30H20N10NaO11S
    2,4-二[4-(二甲基氨基)-2-羟基苯基]-3-环丁烯-1,2-二(基鎓)-1,3-二醇 (6Z)-3-(dimethylamino)-6-[3-[4-(dimethylamino)-2-hydroxyphenyl]-2-hydroxy-4-oxocyclobut-2-en-1-ylidene]cyclohexa-2,4-dien-1-one 63842-83-1 C20H20N2O4
    2,4-二-叔-丁基-6-乙基苯酚 2-ethyl-4,6-di-<i>tert</i>-butyl-phenol 6287-47-4 C16H26O
    2,4-二(羟甲基)-3,5-二甲基苯酚 2,4-Bis-hydroxymethyl-3,5-dimethyl-phenol 67730-50-1 C10H14O3
    2,4-二(氯甲基)-1-苯氧基苯 2,4-Bis(chloromethyl)-1-phenoxybenzene 67666-87-9 C14H12Cl2O
    2,4-二(异丙基)苯甲醛 2,4-diisopropyl-benzaldehyde 68459-95-0 C13H18O
    2,4-二(三氯甲基)-苯并(1,3)二恶英-6-羧酸 2,4-bis(trichloromethyl)-benzo-1,3-dioxine-6-carboxylic acid 61720-31-8 C11H6Cl6O4
    2,4-二(三氟甲基)-5-氰基-6-氨基嘧啶 2,4-bis(trifluoromethyl)-5-cyano-6-aminopyrimidine 654-50-2 C7H2F6N4
    2,4-二(4-甲基苯基)噻吩 2,4-bis(4-methylphenyl)thiophene 62497-31-8 C18H16S
    2,4-二(4-甲基苯基)-3-氧代-丁酸乙酯 2,4-di-<i>p</i>-tolyl-acetoacetic acid ethyl ester 6632-84-4 C20H22O3
    2,4-二(3,5-二叔-丁基-4-氧代-2,5-环己二烯-1-亚基)环丁烷-1,3-二酮 2,4-Bis-(3,5-di-tert-butyl-4-oxo-cyclohexa-2,5-dienylidene)-cyclobutane-1,3-dione 61377-20-6 C32H40O4
    2,4-二(2-呋喃甲基)呋喃 2,4-Difurfurylfuran 64280-32-6 C14H12O3
    2,4-二(1,1-二甲基乙基)-6-(1-苯基乙基)苯酚 2,4-bis(1,1-dimethylethyl)phenol 63428-98-8 C22H30O
    2,4-TDI二聚体 2,4-TDI dimer 6144-18-9 C18H12N4O4
    2,4,8-三氯喹唑啉 2,4,8-trichloroquinazoline 62484-29-1 C8H3Cl3N2
    2,4,8,10-四氧杂螺[5.5]十一烷-3,9-二丙胺与2-丙烯腈的反应产物 Einecs 270-189-4 68412-44-2 C16H29N3O4
    2,4,8,10-四氧杂螺[5.5]十一烷,3,9-二亚乙基- 3,9-Diethylidene-2,4,8,10-tetraoxaspiro[5.5]undecane 65967-52-4 C11H16O4