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    中文名称 英文名称 CAS号 化学式
    4,5-二氢-1-甲氧基-3H-苯并[c]氮杂卓 1-methoxy-4,5-dihydro-3H-2-benzazepine 877402-50-1 C11H13NO
    4,5-二氢-1-甲基-1H-磷杂环戊二烯-2-羧酸 1-氧化物 1-methyl-1-oxo-4,5-dihydro-1<i>H</i>-1λ<sup>5</sup>-phosphole-2-carboxylic acid 36163-70-9 C6H9O3P
    4,5-二氢-1-环己基-1,4-环氧-1H,3H-(1,4)氧氮杂卓并(4,3-a)苯并咪唑 4,5-Dihydro-1-cyclohexyl-1,4-epoxy-1H,3H-(1,4)oxazepino(4,3-a)benzimidazole 76099-01-9 C17H20N2O2
    4,5-二氢-1-己基-1,4-环氧-1H,3H-(1,4)氧氮杂卓并(4,3-a)苯并咪唑 4,5-Dihydro-1-hexyl-1,4-epoxy-1H,3H-(1,4)oxazepino(4,3-a)benzimidazole 76099-00-8 C17H22N2O2
    4,5-二氢-1-乙基-1,4-环氧-1H,3H-(1,4)氧氮杂卓并(4,3-a)苯并咪唑 4,5-Dihydro-1-ethyl-1,4-epoxy-1H,3H-(1,4)oxazepino(4,3-a)benzimidazole 76098-97-0 C13H14N2O2
    4,5-二氢-1-[3-(三氟甲基)苯基]-1H-吡唑-3-胺 3-amino-1-<3-(trifluoromethyl)phenyl>-2-pyrazoline 66000-40-6 C10H10F3N3
    4,5-二氢-1-(甲基硫代)苯并(c)噻吩-3-羧酸 4,5-Dihydro-1-(methylthio)benzo(C)thiophene-3-carboxylic acid 175202-54-7 C10H10O2S2
    4,5-二氢-1-(4-硝基苯基)-5-氧代-1H-吡唑-3-羧酸 4,5-Dihydro-1-(4-nitrophenyl)-5-oxo-1H-pyrazole-3-carboxylic acid 62084-02-0 C10H7N3O5
    4,5-二氢-1-(3-硝基苯基)-5-氧代-1H-吡唑-3-羧酸 1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-1-(3-nitrophenyl)-5-oxo- 89-27-0 C10H7N3O5
    4,5-二氢-1-(3-甲氧基苯基)-1,4-环氧-1H,3H-(1,4)氧氮杂卓并(4,3-a)苯并咪唑 4,5-Dihydro-1-(3-methoxyphenyl)-1,4-epoxy-1H,3H-(1,4)oxazepino(4,3-a)benzimidazole 76099-08-6 C18H16N2O3
    4,5-二氢-1-(3-甲基苯基)-1,4-环氧-1H,3H-(1,4)氧氮杂卓并(4,3-a)苯并咪唑 4,5-Dihydro-1-(3-methylphenyl)-1,4-epoxy-1H,3H-(1,4)oxazepino(4,3-a)benzimidazole 76099-06-4 C18H16N2O2
    4,5-二氢-1-(3-氯苯基)-1,4-环氧-1H,3H-(1,4)氧氮杂卓并(4,3-a)苯并咪唑 4,5-Dihydro-1-(3-chlorophenyl)-1,4-epoxy-1H,3H-(1,4)oxazepino(4,3-a)benzimidazole 76099-04-2 C17H13ClN2O2
    4,5-二氢-1-(3-氟苯基)-1,4-环氧-1H,3H-(1,4)氧氮杂卓并(4,3-a)苯并咪唑 4,5-Dihydro-1-(3-fluorophenyl)-1,4-epoxy-1H,3H-(1,4)oxazepino(4,3-a)benzimidazole 76099-10-0 C17H13FN2O2
    4,5-二氢-1-(2-羟基乙基)-8-[[5-(4-甲基-1-哌嗪基)-2-(三氟甲氧基)苯基]氨基]-1H-吡唑并[4,3-h]喹唑啉-3-甲酰胺 onvansertib 1034616-18-6 C24H27F3N8O3
    4,5-二氢-1-(2-羟基乙基)-3-(2-羟基-3-磺酸基丙基)-2-十一烷基-1H-咪唑鎓单钠盐 4,5-Dihydro-1-(2-hydroxyethyl)-3-(2-hydroxy-3-sulphonatopropyl)-2-undecyl-1H-imidazolium, monosodium salt 68039-23-6 C19H37N2NaO5S
    4,5-二氢-1-(2-甲基苯基)-1,4-环氧-1H,3H-(1,4)氧氮杂卓并(4,3-a)苯并咪唑 4,5-Dihydro-1-(2-methylphenyl)-1,4-epoxy-1H,3H-(1,4)oxazepino(4,3-a)benzimidazole 76099-07-5 C18H16N2O2
    4,5-二氢-1-(2-甲基-4-磺基苯基)-5-氧代-1H-吡唑-3-羧酸 1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-1-(2-methyl-4-sulfophenyl)-5-oxo- 67939-25-7 C11H10N2O6S
    4,5-二氢-1-(2-氯苯基)-1,4-环氧-1H,3H-(1,4)氧氮杂卓并(4,3-a)苯并咪唑 4,5-Dihydro-1-(2-chlorophenyl)-1,4-epoxy-1H,3H-(1,4)oxazepino(4,3-a)benzimidazole 76099-05-3 C17H13ClN2O2
    4,5-二氢-1-(2-噻吩基)-1,4-环氧-1H,3H-(1,4)氧氮杂卓并(4,3-a)苯并咪唑 4,5-Dihydro-1-(2-thienyl)-1,4-epoxy-1H,3H-(1,4)oxazepino(4,3-a)benzimidazole 76099-03-1 C15H12N2O2S
    4,5-二氢-1-(1-甲基乙基)-1,4-环氧-1H,3H-(1,4)氧氮杂卓并(4,3-a)苯并咪唑 4,5-Dihydro-1-(1-methylethyl)-1,4-epoxy-1H,3H-(1,4)oxazepino(4,3-a)benzimidazole 76098-98-1 C14H16N2O2
    4,5-二氢-1-(1,1-二甲基乙基)-1,4-环氧-1H,3H-(1,4)氧氮杂卓并(4,3-a)苯并咪唑 4,5-Dihydro-1-(1,1-dimethylethyl)-1,4-epoxy-1H,3H-(1,4)oxazepino(4,3-a)benzimidazole 76098-99-2 C15H18N2O2
    4,5-二氢-1,5-二苯基-1H-1,2,3-三唑 1,5-Diphenyl-Δ2<sup>2</sup>-1,2,3-triazolin 10445-22-4 C14H13N3
    4,5-二氢-1,5-二甲基-1H-吡唑 1,5-dimethyl-4,5-dihydro-1<i>H</i>-pyrazole 5775-96-2 C5H10N2
    4,5-二氢-1,4-苯并氧氮杂卓-3(2H)-酮 4,5-dihydro-1,4-benzoxazepin-3(2H)-one 34844-80-9 C9H9NO2
    4,5-二氢-1,3-苯并二氧-6-胺 1,3-benzodioxine-6-amine 22791-64-6 C8H9NO2
    4,5-二氢-1,3-噻唑-2-甲醛 2-Formyl-thiazolin 37112-93-9 C4H5NOS
    4,5-二氢-1,3-噁唑-2-胺 4,5-dihydro-oxazol-2-ylamine 24665-93-8 C3H6N2O
    4,5-二氢-1,3-二苯基-4-甲酰基-1H-吡唑-5-酮 4-formyl-1,3-diphenyl-2-pyrazolin-5-one 17364-40-8 C16H12N2O2
    4,5-二氢-1,3-二甲基-4-(2-丙炔基)-1H-吡唑并[3,4-b][1,4]苯并氧氮杂卓 1,3-dimethyl-4-prop-2-ynyl-4,5-dihydro-1<i>H</i>-benzo[<i>f</i>]pyrazolo[3,4-<i>b</i>][1,4]oxazepine 22086-98-2 C15H15N3O
    4,5-二氢-1,2-恶唑 4,5-dihydro-isoxazole 504-73-4 C3H5NO
    4,5-二氢-1,2-二甲氧基-6H-二苯并(去,G)喹啉-6-甲醛 N-Demethyl-N-formyldehydronuciferine 111017-06-2 C19H17NO3
    4,5-二氢-1,2,4-三唑-3-硫酮 1,2,4-Triazol-3-thiol 22524-99-8 C2H3N3S
    4,5-二氢-1,2,3-恶二唑 4,5-Dihydro-1,2,3-oxadiazole 13589-37-2 C2H4N2O
    4,5-二氟酞腈 4,5-difluorophthalonitrile 134450-56-9 C8H2F2N2
    4,5-二氟邻苯二甲酸酐 4,5-difluorophthalic anhydride 18959-30-3 C8H2F2O3
    4,5-二氟邻苯二甲酸 4,5-difluorophthalic acid 18959-31-4 C8H4F2O4
    4,5-二氟苯并[a]芘 4,5-Difluorobenzo[a]pyrene 137197-08-1 C20H10F2
    4,5-二氟苯并(a)芘 beta-Cyclodextrin, indomethacin drug combination 71267-09-9 C103H156ClNO74
    4,5-二氟苯并(a)芘 2-[1-(4-chlorobenzoyl)-5-methoxy-2-methylindol-3-yl]acetic acid;(1S,3R,5R,6S,8R,10R,11S,13R,15R,16S,18R,20R,21S,23R,25R,26S,28R,30R,31S,33R,35R,36R,37R,38R,39R,40R,41R,42R,43R,44R,45R,46R,47R,48R,49R)-5,10,15,20,25,30,35-heptakis(hydroxymethyl)-2,4,7,9,12,14,17,19,22,24,27,29,32,34-tetradecaoxaoctacyclo[31.2.2.23,6.28,11.213,16.218,21.223,26.228,31]nonatetracontane-36,37,38,39,40,41,42,43,44,45,46,47,48,49-tetradecol 71299-82-6 C61H86ClNO39
    4,5-二氟苯-1,2-二胺 2-amino-4,5-difluoroaniline 76179-40-3 C6H6F2N2
    4,5-二氟吲哚酮 4,5-difluoro-2-oxindole 850429-64-0 C8H5F2NO
    4,5-二氟吲哚 4,5-difluoro-1H-indole 247564-63-2 C8H5F2N
    4,5-二氟吡啶-2-胺 4,5-difluoropyridin-2-amine 1211537-08-4 C5H4F2N2
    4,5-二氟-N-甲基-1,3-苯并噻唑-2-胺 (4,5-Difluoro-benzothiazol-2-yl)-methyl-amine 189949-37-9 C8H6F2N2S
    4,5-二氟-9,10-二氢菲 4,5-difluoro-9,10-dihydrophenanthrene 108665-36-7 C14H10F2
    4,5-二氟-3-硝基-1H-吡咯并[2,3-B]吡啶 4,5-difluoro-3-nitro-1H-pyrrolo[2,3-b]pyridine 1196507-67-1 C7H3F2N3O2
    4,5-二氟-3-甲氧基苄基 乙酸 2-(3,4-difluoro-5-methoxyphenyl)acetic acid 887585-35-5 C9H8F2O3
    4,5-二氟-2-羟基苯甲酸 4,5-difluoro-2-hydroxybenzoic acid 205533-31-9 C7H4F2O3
    4,5-二氟-2-羟基苯甲腈 4,5-difluoro-2-hydroxybenzonitrile 186590-36-3 C7H3F2NO
    4,5-二氟-2-碘苯酚 4,5-difluoro-2-iodophenol 186590-30-7 C6H3F2IO