| 中文名称 | 英文名称 | CAS号 | 化学式 |
|---|---|---|---|
| 4,5-二甲基异恶唑 | 4,5-Dimethyl-isoxazol | 7064-40-6 | C5H7NO |
| 4,5-二甲基己-1,4-二烯 | 4,5-Dimethyl-1,4-hexadien | 760-76-9 | C8H14 |
| 4,5-二甲基噻唑-2-羧酸 | 4,5-dimethylthiazole-2-carboxylic acid | 79312-41-7 | C6H7NO2S |
| 4,5-二甲基噻唑-2-甲醛 | 4,5-dimethylthiazole-2-carbaldehyde | 74531-15-0 | C6H7NOS |
| 4,5-二甲基-9-吖啶胺 | 5-Amino-1,9-dimethylacridin | 7132-66-3 | C15H14N2 |
| 4,5-二甲基-3,5-环己二烯-1,2-二酮二肟 | N-(4,5-dimethyl-2-nitrosophenyl)hydroxylamine | 70952-43-1 | C8H10N2O2 |
| 4,5-二甲基-2-噻吩甲醇 | 2-hydroxymethyl-4,5-dimethylthiophene | 74379-21-8 | C7H10OS |
| 4,5-二环氧-3-甲基-四氢呋喃 | (1S,2R,4S,6R)-1-Methyl-3,5,7-trioxa-tricyclo[4.1.0.0<sup>2,4</sup>]heptane | 72720-04-8 | C5H6O3 |
| 4,5-二溴鄰胺苯甲酸 | 2-amino-4,5-dibromobenzoic acid | 75057-62-4 | C7H5Br2NO2 |
| 4,5-二溴戊酸 | 4,5-dibromopentanoic acid | 78181-02-9 | C5H8Br2O2 |
| 4,5-二溴噻吩-2-磺酰胺 | 2,3-dibromo-5-thiophenesulfonamide | 77893-69-7 | C4H3Br2NO2S2 |
| 4,5-二溴-6-三氟甲基嘧啶 | 4,5-dibromo-6-(trifluoromethyl)pyrimidine | 785777-94-8 | C5HBr2F3N2 |
| 4,5-二溴-2-(吡啶-2-基)哒嗪-3(2H)-酮 | 4,5-dibromo-2-pyridine-2-ylpyridazin-3(2H)-one | 78389-21-6 | C9H5Br2N3O |
| 4,5-二溴-2,3-二羟基苯甲酸 | 4,5-dibromo-2,3-dihydroxybenzoic acid | 72517-17-0 | C7H4Br2O4 |
| 4,5-二溴-1H-咪唑-2-羧酸乙酯 | ethyl 4,5-dibromoimidazole-2-carboxylate | 74840-99-6 | C6H6Br2N2O2 |
| 4,5-二氯吡啶-2-甲酸 | 4,5-dichloro-pyridine-2-carboxylic acid | 73455-13-7 | C6H3Cl2NO2 |
| 4,5-二氯-6-甲基嘧啶-2-胺 | 4,5-dichloro-6-methylpyrimidin-2-amine | 7749-60-2 | C5H5Cl2N3 |
| 4,5-二氯-2-苯基咪唑 | 4,5-Dichlor-2-phenylimidazol | 72796-33-9 | C9H6Cl2N2 |
| 4,5-二氯-2-硝基甲苯 | 1,2-dichloro-4-methyl-5-nitrobenzene | 7494-45-3 | C7H5Cl2NO2 |
| 4,5-二氯-2-甲基三氟甲苯 | 1,2-Cl2-4-CF3-5-MeC6H2 | 74483-51-5 | C8H5Cl2F3 |
| 4,5-二氯-2-(3-氯-4-氟苯基)-2,3-二氢吡嗪-3-酮 | 2-(3-chloro-4-fluorophenyl)-4,5-dichloropyridazin-3-one | 72396-65-7 | C10H4Cl3FN2O |
| 4,5-二氯-2-(3,4-二氟苯基)哒嗪-3-酮 | 4,5-dichloro-2-(3,4-difluoro-phenyl)-2<i>H</i>-pyridazin-3-one | 72396-61-3 | C10H4Cl2F2N2O |
| 4,5-二氯-2-(2-吡啶基)哒嗪-3-酮 | 4,5-dichloro-2-pyridine-2-ylpyridazin-3(2H)-one | 78389-19-2 | C9H5Cl2N3O |
| 4,5-二氯-2,3-二羟基苯甲醛 | 4,5-Dichloro-2,3-dihydroxybenzaldehyde | 73275-97-5 | C7H4Cl2O3 |
| 4,5-二氯-2,3-二羟基苯甲腈 | 4,5-Dichloro-2,3-dihydroxybenzonitrile | 73275-91-9 | C7H3Cl2NO2 |
| 4,5-二氯-1,8-萘二甲酸酐 | 4,5-dichloronaphthalic anhydride | 7267-14-3 | C12H4Cl2O3 |
| 4,5-二氯-1,8-萘二甲酸 | 4,5-Dichlornaphthalsaeure | 7267-11-0 | C12H6Cl2O4 |
| 4,5-二氯-1,3-苯二磺酰氯 | 4,5-dichloro-1,3-benzenedisulfonyl chloride | 70269-54-4 | C6H2Cl4O4S2 |
| 4,5-二氯-1,2,3-二噻唑氯化物 | 4,5-dichloro-1,2,3-dithiazolium chloride | 75318-43-3 | C2Cl2NS2*Cl |
| 4,5-二氨基-6-羟基-2(1H)-嘧啶酮3-氧化物 | 5,6-Diamino-2,4-dihydroxy-pyrimidin-1-N-oxid | 700-18-5 | C4H6N4O3 |
| 4,5-二氨基-3-异丁基-1-甲基嘧啶-2,6-二酮 | 1-isobutyl-3-methyl-5,6-diamino uracil | 78033-18-8 | C9H16N4O2 |
| 4,5-二氨基-2-氯苯磺酰胺 | 3-Chlor-4-sulfamyl-o-phenylendiamin | 72426-59-6 | C6H8ClN3O2S |
| 4,5-二氨基-2-氟-5-氧代戊酸盐酸盐 | 4,5-Diamino-2-fluoro-5-oxopentanoic acid;hydron;chloride | 7682-58-8 | C5H10ClFN2O3 |
| 4,5-二氨基-1,8-二羟基-2,7-二(2-甲基丙基)蒽-9,10-二酮 | 4,5-diamino-2,7-di-isobutyl-1,8-dihydroxyanthraquinone | 76643-49-7 | C22H26N2O4 |
| 4,5-二氧代-4,5-二氢-1H-吡咯[2,3-f]喹啉-2,7,9-三羧酸三甲酯 | trimethyl 4,5-dihydro-4,5-dioxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylate | 74447-88-4 | C17H12N2O8 |
| 4,5-二氧代-1,4,5,6,7,8-六氢喹啉-3-羧酸 | 4,5-Dioxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylic acid | 72913-01-0 | C10H9NO4 |
| 4,5-二氧代-1,4,5,6,7,8-六氢-喹啉-3-羧酸乙酯 | 4,5-dioxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylic acid ethyl ester | 72913-00-9 | C12H13NO4 |
| 4,5-二氢噻吩并[2,3-C]吡咯-6-酮 | 4,5-dihydro-6H-thieno[2,3-c]pyrrol-6-one | 79472-22-3 | C6H5NOS |
| 4,5-二氢-N-((4-溴苯基)甲基)噻唑胺 | (4-bromo-benzyl)-(4,5-dihydro-thiazol-2-yl)-amine | 72239-31-7 | C10H11BrN2S |
| 4,5-二氢-8-甲氧基-1-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-8-methoxy-1-phenyl-1,4-epoxy-1H,3H-(1,4)oxazepino(4,3-a)benzimidazole | 76099-14-4 | C18H16N2O3 |
| 4,5-二氢-6-甲基-5-氧代-2-吡嗪甲酸 | 4,5-dihydro-6-methyl-5-oxo-2-pyrazinecarboxylic acid | 77168-83-3 | C6H6N2O3 |
| 4,5-二氢-5-甲基-2-(十一烷基)恶唑 | 2-Oxazoline, 5-methyl-2-undecyl- | 7504-77-0 | C15H29NO |
| 4,5-二氢-5-氧代-4-[(3-膦酰苯基)偶氮]-1-(4-磺基苯基)-1H-吡唑-3-羧酸 | 4,5-Dihydro-5-oxo-4-((3-phosphonophenyl)azo)-1-(4-sulphophenyl)-1H-pyrazole-3-carboxylic acid | 77394-55-9 | C16H13N4O9PS |
| 4,5-二氢-5-氧代-1H-吡唑-3-羧酸甲酯 | 4,5-Dihydro-5-oxo-1H-pyrazol-3-carbonsaeure-methylester | 79746-67-1 | C5H6N2O3 |
| 4,5-二氢-5-氧代-1H-吡唑-3-羧酸 | Pyrazolon-3-carbonsaeure | 71173-77-8 | C4H4N2O3 |
| 4,5-二氢-5-氧代-1-[(4-磺基苯基)甲基]-1H-吡唑-3-羧酸 | 4,5-Dihydro-5-oxo-1-((4-sulphophenyl)methyl)-1H-pyrazole-3-carboxylic acid | 71849-96-2 | C11H10N2O6S |
| 4,5-二氢-5-氧代-1-(4-磺苯基)-4-[(4-磺苯基)偶氮]-1H-吡唑-3-羧酸与N,N'-双(混合苯基,甲苯基和二甲苯基)胍盐酸盐衍生物的反应产物 | guanidine;5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)diazenyl]-4H-pyrazole-3-carboxylic acid;hydrochloride | 71077-14-0 | C17H18ClN7O9S2 |
| 4,5-二氢-5-氧代-1-(4-磺基苯基)-1H-吡唑-3-乙酸 | 4,5-Dihydro-5-oxo-1-(4-sulphophenyl)-1H-pyrazole-3-acetic acid | 71872-96-3 | C11H10N2O6S |
| 4,5-二氢-5-氧-4-[[4-[[[3-[[2-(硫氧)乙基]磺酰基]苯基]氨基]羰基]苯基]偶氮]-1-(4-磺苯基)-1H-吡唑-3-羧酸三钠 | 1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-4-((4-(((3-((2-(sulfooxy)ethyl)sulfonyl)phenyl)amino)carbonyl)phenyl)azo)-1-(4-sulfophenyl)-, trisodium salt | 72187-36-1 | C25H18N5Na3O13S3 |
| 4,5-二氢-4-羟基-6-苯基-3(2H)-哒嗪酮 | hydroxy-4 phenyl-6 pyridazinone-3 | 70529-47-4 | C10H10N2O2 |