| 中文名称 | 英文名称 | CAS号 | 化学式 |
|---|---|---|---|
| 4-丙基-1,3-二氢-咪唑-2-硫酮 | 4-propyl-1,3-dihydro-imidazole-2-thione | 4708-64-9 | C6H10N2S |
| 4-丁酰基-5-甲基-2-苯基-2,4-二氢-3H-吡唑-3-酮 | 4-butyryl-3-methyl-1-phenyl-2-pyrazolin-5-one | 22616-35-9 | C14H16N2O2 |
| 4-[5-(5-羟基-3-苯基-4-异唑基)-2,4-戊二烯亚基]-3-苯基-5(4H)-异唑酮 | oxonol V | 61389-30-8 | C23H16N2O4 |
| 4-[(二甲基氨基)亚甲基]-3-甲基-1-苯基-2-吡唑啉-5-酮 | 4-(dimethylaminomethylene)-5-methyl-2-phenyl-2,4-dihydro-pyrazol-3-one | 4942-70-5 | C13H15N3O |
| 4-[(二甲基氨基)亚甲基]-1-苯基-3-丙基-2-吡唑啉-5-酮 | 4-Dimethylaminomethylene-1-phenyl-3-propyl-2-pyrazolin-5-one | 15900-09-1 | C15H19N3O |
| 4-[(二甲基氨基)亚甲基]-1,3-二苯基-2-吡唑啉-5-酮 | 4-dimethylaminomethylene-2,5-diphenyl-2,4-dihydro-pyrazol-3-one | 5376-09-0 | C18H17N3O |
| 4-[(5-羟基-3-甲基-4-异恶唑基)亚甲基]-3-甲基-5(4H)-异恶唑酮 | 4-[(5-hydroxy-3-methylisoxazol-4-yl)methylene]-3-methyl-(4H)isoxazol-5-one | 14532-32-2 | C9H8N2O4 |
| 4-[(4,5-二氢-3-甲基-5-氧代-1H-吡唑-4-亚基)甲基]-2,4-二氢-5-甲基-3H-吡唑-3-酮 | 3H-Pyrazol-3-one, 4-[(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-ylidene)methyl]-2,4-dihydro-5-methyl- | 68427-36-1 | C9H10N4O2 |
| 4-2-羟甲基-3-甲基-1-苯基-2-吡唑啉-5-酮 | 4-(2-Hydroxyethyl)-3-methyl-1-phenyl-2-pyrazolin-5-one | 10223-33-3 | C12H14N2O2 |
| 4-(氯甲基)-2-[(二甲氨基)甲基]-5H-1,3-噻唑-4-醇 | 4-Hydroxy-4-(chloromethyl)-2-<(dimethylamino)methyl>thiazoline | 92759-37-0 | C7H13ClN2OS |
| 4-(氯乙酰基)-2,5-二甲基-2,4-二氢-3H-吡唑-3-酮 | 4-(2-Chloroacetyl)-1,3-dimethyl-1H-pyrazol-5(4H)-one | 185746-06-9 | C7H9ClN2O2 |
| 4-(氨基-甲基氨基)-5H-1,3-噻唑-2-酮 | 4-(<i>N</i>-methyl-hydrazino)-3<i>H</i>-thiazol-2-one | 34551-16-1 | C4H7N3OS |
| 4-(5-乙氧基-4,5-二氢-1,3-噻唑-2-基)-3-甲基-1-丁醇 | 2-(2-methyl-4-hydroxybutyl)-5-ethoxy-Δ-2-thiazoline | 121694-03-9 | C10H19NO2S |
| 4-(4,5-二氢-1,2-恶唑-3-基氧基)-2-丁炔-1-醇 | 3-(4-hydroxy-2-butynyl)oxy-Δ<sup>2</sup>-isoxazoline | 247079-77-2 | C7H9NO3 |
| 4-(3-丁基-2,3-二氢-1H-咪唑)丁烷-1-磺酸 | 4-(3-Butyl-2,3-dihydro-1H-imidazol-1-yl)butane-1-sulphonic acid | 439937-61-8 | C11H22N2O3S |
| 4-(2-苯基乙基)-1,3-二氢咪唑-2-硫酮 | (4-phenylethyl)-2-mercaptoimidazole | 93103-25-4 | C11H12N2S |
| 4-(2-羟基乙基)-5-甲基-1,2-二氢-3H-吡唑-3-酮 | 4-(2-hydroxyethyl)-3-methyl-1H-pyrazol-5-ol | 65287-96-9 | C6H10N2O2 |
| 4-(2-羟基乙基)-3-甲基-5-氧代-2,5-二氢-1H-吡唑-1-甲脒 | 1-amidino-4-(2-hydroxyethyl)-3-methyl-3-pyrazolin-5-one | 210417-12-2 | C7H12N4O2 |
| 4-(2-羟基乙基)-3-甲基-2-吡唑啉-5-酮 | 3-Methyl-4-<2-hydroxy-ethyl>-pyrazolon-(5) | 7721-54-2 | C6H10N2O2 |
| 4-(2-甲基丙基)-2-(三氟甲基)-2H-1,3-恶唑-5-酮 | 2-Trifluormethyl-4-isobutyl-3-oxazol-5-on | 2546-70-5 | C8H10F3NO2 |
| 4-(2-呋喃基)-3-乙氧羰基-2-吡唑啉 | 4-(2-furyl)-3-ethoxycarbonyl-2-pyrazoline | 73315-88-5 | C10H12N2O3 |
| 4-(1-甲氧基-亚乙基)-3-苯基-4H-异恶唑-5-酮 | 3-Phenyl-4-<1-methoxy-aethyliden>-isoxazolon-(5) | 110443-54-4 | C12H11NO3 |
| 4-(1,2-二甲基肼基)噻唑-2(5H)-酮 | 2(5H)-Thiazolone, 4-(1,2-dimethylhydrazino)- | 76326-94-8 | C5H9N3OS |
| 4- 甲基-5-氧代-4,5-二氢-异噁唑-3-羧酸乙酯 | ethyl 4-methyl-5-oxo-4,5-dihydroisoxazole-3-carboxylate | 3477-10-9 | C7H9NO4 |
| 4,6-二苯基-5,6-二氮杂螺[2.4]庚-4-烯-7-酮 | 5,7-diphenyl-5,6-diazaspiro[2.4]hept-6-en-4-one | 10223-46-8 | C17H14N2O |
| 4,5-二甲基-4,5-二氢-1H-吡唑 | 4,5-Dimethyl-Δ<sup>2</sup>-pyrazolin | 28019-94-5 | C5H10N2 |
| 4,5-二甲基-2-异丙基-3-噻唑啉 | 2-Isopropyl-4,5-dimethyl-2,5-dihydrothiazole | 33120-74-0 | C8H15NS |
| 4,5-二甲基-2-异丁基噻唑啉 | 4,5-dimethyl-2-(2-methylpropyl)-2,5-dihydro-1,3-thiazole | 65894-83-9 | C9H17NS |
| 4,5-二甲基-2-[2-(甲硫基)乙基]-2,5-二氢-1,3-噻唑 | 4,5-Dimethyl-2-[2-(methylsulfanyl)ethyl]-2,5-dihydro-1,3-thiazole | 65894-81-7 | C8H15NS2 |
| 4,5-二氰咪唑-2-肼溴化氢 | 2-hydrazino-4,5-dihydroimidazole hydrobromide | 55959-84-7 | Br*C3H9N4 |
| 4,5-二氨基-2-乙基-1-甲基-1,2-二氢-3H-吡唑-3-酮 | 4,5-diamino-2-ethyl-1-methyl-1,2-dihydropyrazol-3-one | 857036-14-7 | C6H12N4O |
| 4,5-二氢恶唑 | 4,5-dihydro-1,3-oxazol | 504-77-8 | C3H5NO |
| 4,5-二氢异噻唑1,1-二氧化物 | 4,5-dihydro-isothiazole 1,1-dioxide | 881652-45-5 | C3H5NO2S |
| 4,5-二氢噻唑-2-胺单氢溴酸盐 | 2-amino-2-thiazoline hydrobromide | 13483-03-9 | BrH*C3H6N2S |
| 4,5-二氢噻唑-2-羧酸 | thiazolinecarboxylic acid | 81018-64-6 | C4H5NO2S |
| 4,5-二氢-5-羟基-3-甲基-5-(三氟甲基)异恶唑 | 5-hydroxy-3-methyl-5-trifluoromethyl-4,5-dihydroisoxazole | 51479-84-6 | C5H6F3NO2 |
| 4,5-二氢-5-羟基-1-甲基-5-(三氟甲基)吡唑 | 4,5-dihydro-5-hydroxy-1-methyl-5-(trifluoromethyl)pyrazole | 272442-83-8 | C5H7F3N2O |
| 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-3-苯基-1H-吡唑-1-硫代甲酰胺 | 1H-Pyrazole-1-carbothioamide, 4,5-dihydro-5-oxo-3-phenyl- | 58197-04-9 | C10H9N3OS |
| 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-4,5-二硝基-1H-咪唑-2-胺 | 4,5-Dinitro-4,5-dihydro-1H-imidazol-2-amine | 644996-55-4 | C3H5N5O4 |
| 4,5-二氢-3-甲基-1H-吡唑 | 3-methyl-4,5-dihydro-1H-pyrazole | 1911-30-4 | C4H8N2 |
| 4,5-二氢-3,4,4-三甲基恶唑鎓碘化物 | 3,4,4-trimethyl-Δ<sup>2</sup>-oxazolinium iodide | 30093-97-1 | C6H12NO*I |
| 4,5-二氢-2-异丁基噻唑 | 2-(2-Methylpropyl)-2-thiazolin | 26851-79-6 | C7H13NS |
| 4,5-二氢-2-十一烷基恶唑 | 2-n-undecyl-4,5-dihydrooxazole | 10431-84-2 | C14H27NO |
| 4,5-二氢-2-丙基噻唑 | 2-propyl-4,5-dihydrothiazole | 23185-09-3 | C6H11NS |
| 4,5-二氢-2-[(3-甲基-2-丁烯-1-基)硫基]噻唑 | 1-(4',5'-dihydrothiazol-2'-yl)thio-3-methylbut-2-ene | 103483-02-9 | C8H13NS2 |
| 4,5-二氢-2-(硝基甲基)噻唑 | 1-Nitromethylthiazolin | 35624-48-7 | C4H6N2O2S |
| 4,5-二氢-2-(甲硫基)-1H-咪唑-1-羧酸甲酯 | methyl 2-(methylthio)-4,5-dihydro-1H-imidazole-1-carboxylate | 60546-77-2 | C6H10N2O2S |