| 中文名称 | 英文名称 | CAS号 | 化学式 |
|---|---|---|---|
| 4,5-二甲基-环己-2-烯醇 | 4,5-Dimethyl-cyclohex-2-enol | 5715-22-0 | C8H14O |
| 4,5-二甲基-5-氯-2-环戊烯酮 | trans-5-Chloro-4,5-dimethyl-2-cyclopentenone | 63023-42-7 | C7H9ClO |
| 4,5-二甲基-5-氯-2-环戊烯酮 | (4S,5S)-5-Chloro-4,5-dimethyl-2-cyclopenten-1-one | 19946-58-8 | C7H9ClO |
| 4,5-二甲基-5-氯-2-环戊烯酮 | trans-4,5-dimethyl-5-chloro-2-cyclopentenone | 63023-32-5 | C7H9ClO |
| 4,5-二甲基-5-氯-2-环戊烯酮 | 4,5-dimethyl-5-chloro-2-cyclopentenone | 35493-81-3 | C7H9ClO |
| 4,5-二甲基-4-己烯-3-酮 | 4-hexen-3-one, 4,5-dimethyl- | 17325-90-5 | C8H14O |
| 4,5-二甲基-3-(2-氧代-2-苯基乙基)噻唑鎓氯化物 | 4,5-dimethyl-3-(2-oxo-2-phenylethyl)-thiazolium chloride | 341028-37-3 | C13H14NOS*Cl |
| 4,5-二甲基-2-糠醛 | 4,5-dimethyl-2-formylfuran | 52480-43-0 | C7H8O2 |
| 4,5-二甲基-2-环己烯-1-酮 | 2-cyclohexen-1-one, 4,5-dimethyl- | 5715-25-3 | C8H12O |
| 4,5-二甲基-2-氧代-1,3.2-二氧硫杂戊烷 | 4,5-dimethyl-1,3,2-dioxathiolane 2-oxide | 4440-90-8 | C4H8O3S |
| 4,5-二甲基-2-(2-硝基乙酰基)苯甲酸 | 4,5-dimethyl-ω-nitroacetophenone-2-carboxylic acid | 54519-63-0 | C11H11NO5 |
| 4,5-二甲基-1H-吡咯-2-甲醛 | 2-formyl-4,5-dimethylpyrrole | 53700-95-1 | C7H9NO |
| 4,5-二甲基-1-(三甲基甲硅烷基)-4-己烯-1-炔-3-酮 | 4,5-Dimethyl-1-(trimethylsilyl)-4-hexen-1-yn-3-one | 105364-87-2 | C11H18OSi |
| 4,5-二甲基-1,3-环己二酮 | 4,5-dimethyl-1,3-cyclohexanedione | 42824-00-0 | C8H12O2 |
| 4,5-二甲基-1,2-苯醌 | 4,5-dimethyl-[1,2]benzoquinone | 4370-50-7 | C8H8O2 |
| 4,5-二溴噻吩-3-甲醛 | 4,5-dibromothiophene-3-carbaldehyde | 61200-56-4 | C5H2Br2OS |
| 4,5-二溴-2-苯甲酰基吡咯 | 2,3-dibromo-5-benzoylpyrrole | 50372-61-7 | C11H7Br2NO |
| 4,5-二溴-2-呋喃甲醛 | 4,5-dibromo-2-furancarboxaldehyde | 2433-85-4 | C5H2Br2O2 |
| 4,5-二溴-1H-吡咯-2-甲醛 | 4,5-dibromo-1H-pyrrole-2-carbaldehyde | 932-82-1 | C5H3Br2NO |
| 4,5-二氯异噻唑-3-基苯基酮 | 4,5-dichloroisothiazol-3-yl phenyl ketone | 1069133-53-4 | C10H5Cl2NOS |
| 4,5-二氯全氟(2,2-二甲基-1,3-二氧戊环) | 2,2-bis(trifluoromethyl)-4,5-dichloro-4,5-difluoro-1,3-dioxolane | 60644-92-0 | C5Cl2F8O2 |
| 4,5-二氯-3-噻吩羧醛 | 4,5-dichlorothiophene-3-carbaldehyde | 61200-59-7 | C5H2Cl2OS |
| 4,5-二氯-2-羟基苯甲醛 | 4,5-dichloro-2-hydroxybenzaldehyde | 84388-68-1 | C7H4Cl2O2 |
| 4,5-二氯-2-(噻吩-2-羰基)苯甲酸 | 2-(2-theonyl)-4,5-dichlorobenzoic acid | 143746-69-4 | C12H6Cl2O3S |
| 4,5-二氯-1,2-苯醌 | 4,5-dichloro-1,2-benzoquinone | 18268-81-0 | C6H2Cl2O2 |
| 4,5-二氮芴-9-酮 | 4,5-Diazafluoren-9-one | 50890-67-0 | C11H6N2O |
| 4,5-二氢环戊并[b]噻吩-6-酮 | 4,5-dihydro-6H-cyclopenta[b]thiophen-6-one | 5650-52-2 | C7H6OS |
| 4,5-二氢-5-羰基-4-[[4-[[[3-[[2-(磺酸根氧代)乙基]磺基基]苯基]氨基]羰基]苯基]偶氮]-1-(4-磺酸根苯基)-1H-吡唑-3-羧酸三钠 | Adddea | 146763-21-5 | C35H66N2O11 |
| 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-1,2,3-恶二唑 | 4,5-Dihydro-1,2,3-oxadiazole | 13589-37-2 | C2H4N2O |
| 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-2,2-二(三氟甲基)-1,3-二氧杂环戊烯 | 2,2-bis(trifluoromethyl)-4,5-difluoro-1,3-dioxole | 37697-64-6 | C5F8O2 |
| 4,5-二异丙基-2,7-辛烷二酮 | 4,5-diisopropyl-octane-2,7-dione | 29210-63-7 | C14H26O2 |
| 4,5-二乙炔基-6-甲氧基嘧啶 | 4,5-Diethynyl-6-methoxypyrimidine | 86854-61-7 | C9H6N2O |
| 4,5-二乙氧基-辛烷 | 4,5-diethoxy-octane | 100392-86-7 | C12H26O2 |
| 4,5-二-吗啉-4-基-[1,2]对苯醌 | 4,5-dimorpholino-[1,2]benzoquinone | 4608-10-0 | C14H18N2O4 |
| 4,5,7-邻乙酰基-2,6-酐-3-脱氧-d-lyxo-2-庚烯腈 | hepta-O-acetyl-α-laminarabiosyl bromide | 23202-66-6 | C26H35BrO17 |
| 4,5,6-三羟基-2-氧代-7-膦酰氧基庚酸 | 2-dehydro-3-deoxy-7-phosphono-D-arabino-heptanoic acid | 2627-73-8 | C7H13O10P |
| 4,5,6-三甲基-庚烷-3-酮 | 4,5,6-Trimethyl-3-heptanon | 70358-88-2 | C10H20O |
| 4,5,6,7-四氢吡唑并[1,5-a]吡啶-3-甲醛 | 4,5,6,7-tetrahydropyrazolo[1,5-a]pyridine-3-carbaldehyde | 307308-03-8 | C8H10N2O |
| 4,5,6,7-四氢吡唑并[1,5-a]吡啶-2-甲醛 | 4,5,6,7-tetrahydropyrazolo[1,5-a]pyridine-2-carbaldehyde | 307313-06-0 | C8H10N2O |
| 4,5,6,7-四氢-4-苯并噻吩 | 4-keto-4,5,6,7-tetrahydrothianaphthene | 13414-95-4 | C8H8OS |
| 4,5,6,7-四氢-3-甲氧基-异恶唑并[4,5-c]吡啶 | OMe-THPO | 95579-17-2 | C7H10N2O2 |
| 4,5,6,7-四氢-1-苯并噻吩-3-甲醛 | 4,5,6,7-tetrahydrobenzo[b]thiophene-3-carbaldehyde | 851634-60-1 | C9H10OS |
| 4,5,6,7-四氢-1,3-苯并噻唑-2-甲醛 | 4,5,6,7-tetrahydrobenzo[d]thiazole-2-carbaldehyde | 884504-72-7 | C8H9NOS |
| 4,5,6,7,8,9-六羟基-2-氧代-壬酸 | 3-deoxy-D-glycero-D-galacto-2-nonulosonic acid | 22594-61-2 | C9H16O9 |
| 4,5,6,7,7-五甲基辛-4-烯-3-酮 | 2'-Guanidyl-2'-deaminogentamicin C1 | 82089-23-4 | C22H45N7O7 |
| 4,5,5-三甲基-环己烷-1,3-二酮 | 5,5,6-Trimethyl-cyclohexan-1,3-dion | 18456-85-4 | C9H14O2 |
| 4,5,5-三甲基-2-庚酮 | 4,5,5-trimethyl-2-heptanone | 79996-74-0 | C10H20O |