| 中文名称 | 英文名称 | CAS号 | 化学式 |
|---|---|---|---|
| 4,5-二氢-2,3-二甲基-噻唑鎓碘化物(1:1) | 2,3-dimethylthiazolinium iodide | 26934-29-2 | C5H10NS*I |
| 4,5-二氢-1H-咪唑-2-胺溴化物 | 4,5-dihydro-1H-imidazole-2-amine hydrobromide | 30879-89-1 | BrH*C3H7N3 |
| 4,5-二氢-1H-咪唑-2-胺 | 2-amino-2-imidazoline | 19437-45-7 | C3H7N3 |
| 4,5-二氢-1H-咪唑-2-磺酸 | 4,5-dihydro-1H-imidazole-2-sulfonic acid | 64205-92-1 | C3H6N2O3S |
| 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-1,5-二甲基-1H-吡唑 | 1,5-dimethyl-4,5-dihydro-1<i>H</i>-pyrazole | 5775-96-2 | C5H10N2 |
| 4,5-二氢-1,3-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-1,2-恶唑 | 4,5-dihydro-isoxazole | 504-73-4 | C3H5NO |
| 4,5-二氢-1,2,4-三唑-3-硫酮 | 1,2,4-Triazol-3-thiol | 22524-99-8 | C2H3N3S |
| 4,5,6,7-四氢-1,2-苯并异噻唑-3(2H)-酮 1,1-二氧化物 | 4,5,6,7-tetrahydro-1,2-benzisothiazol-3(2H)-one 1,1-dioxide | 95117-71-8 | C7H9NO3S |
| 4,5,6,6a-四氢-3aH-环戊二烯并[d][1,2]恶唑-3-羧酸 | 4,5,6,6a-Tetrahydro-3aH-cyclopenta[d]isoxazole-3-carboxylic acid | 176909-91-4 | C7H9NO3 |
| 4,4-二甲基-2-氧唑啉 | 4,4-dimethyl-2-oxazoline | 30093-99-3 | C5H9NO |
| 4,4-二甲基-2-咪唑并啉 | 4,4-dimethyl-Δ<sup>2</sup>-imidazoline | 2305-59-1 | C5H10N2 |
| 4,4-二甲基-2-十一烷基-2-恶唑啉 | 2-undecyl-4,4-dimethyl-1,3-oxazoline | 46921-17-9 | C16H31NO |
| 4,4-二甲基-2-(5-甲基-1-氧杂螺[2.5]辛-2-基)-4,5-二氢-1,3-恶唑 | 4,4-Dimethyl-2-(5-methyl-1-oxaspiro[2.5]octan-2-yl)-4,5-dihydro-1,3-oxazole | 831224-99-8 | C13H21NO2 |
| 4,4-二甲基-1-氧代-4,5-二氢-1,2,5-噻二唑-3-基氨基硫代甲亚氨酸酯 | 2-(4,4-Dimethyl-1-oxo-4,5-dihydro-1H-1λ<sup>4</sup>-[1,2,5]thiadiazol-3-yl)-isothiourea | 791725-58-1 | C5H10N4OS2 |
| 4,4-二溴-5-甲基-2-苯基吡唑-3-酮 | 4,4-Dibromo-3-methyl-1-phenyl-2-pyrazolin-5-one | 62947-11-9 | C10H8Br2N2O |
| 4,4-二溴-3-甲基-2-吡唑啉-5-酮 | 4,4-dibromo-5-methyl-2,4-dihydro-3H-pyrazol-3-one | 33549-66-5 | C4H4Br2N2O |
| 4,4-二氟-5-甲基-2-苯基吡唑-3-酮 | 4,4-difluoro-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one | 56875-01-5 | C10H8F2N2O |
| 4,4,5-三甲基-2H-吡唑-3-酮 | 2,4-dihydro-4,4,5-trimethyl-3H-pyrazol-3-one | 3201-20-5 | C6H10N2O |
| 4,4,5,5-四甲基-3-噻吩-2-基-1,2-噻唑 | 4,4,5,5-Tetramethyl-3-(thiophen-2-yl)-4,5-dihydro-1,2-thiazole | 89767-76-0 | C11H15NS2 |
| 3alpha-羟基-2,3A,4,5,6,7-六氢-3H-吲唑-3-酮 | 9-Hydroxy-3-oxo-2,3,4,5,6,7-hexahydroindazol | 107398-92-5 | C7H10N2O2 |
| 3H-茚并[1,2-b]吡嗪-3-酮,1,2,4,9-四氢- | 2-(1-mercaptoethyl)-2,4,5-trimethyl-3-thiazoline | 84310-28-1 | C8H15NS2 |
| 3H-吡唑-3-酮,4-溴-2,4-二氢-4-[[5-(4-羟基苯基)-4-(苯基氨基)-4H-1,2,4-三唑-3-基]硫代]-5-甲基-2-苯基- | 3H-Pyrazol-3-one,4-bromo-2,4-dihydro-4-[[5-(4-hydroxyphenyl)-4-(phenylamino)-4H-1,2,4-triazol-3-yl]thio]-5-methyl-2-phenyl- | 155776-58-2 | C24H19BrN6O2S |
| 3H-1,2,4-三唑-3-酮,4-(氯乙酰基)-4,5-二氢-5,5-二甲基-(9CI) | 3H-1,2,4-Triazol-3-one, 4-(chloroacetyl)-4,5-dihydro-5,5-dimethyl- | 130138-03-3 | C6H8ClN3O2 |
| 3-苯基-5-异噁唑酮 | 3-phenyl-4H-isoxazol-5-one | 1076-59-1 | C9H7NO2 |
| 3-苯基-1,2-恶唑-4(5H)-酮 | 3-phenyl-4(5H)-isoxazolone | 78650-97-2 | C9H7NO2 |
| 3-羟基甲基-1H-吡唑-5-醇 | 3-(1-hydroxymethyl)-5-hydroxy-1H-pyrazole | 70498-81-6 | C4H6N2O2 |
| 3-羟基-1-甲基-5-三氟甲基-1H-吡唑 | 5-trifluoromethyl-3-hydroxy-1-methylpyrazole | 119022-51-4 | C5H5F3N2O |
| 3-羟基-1-(1,3-噻唑-2-基)氮杂丁烷 | 1-(1,3-thiazolin-2-yl-)azetidin-3-ol | 161715-27-1 | C6H10N2OS |
| 3-硝基-4,5-二氢-1,2-恶唑-4-醇2-氧化物 | 4-hydroxy-3-nitro-2-isoxazoline N-oxide | 4122-46-7 | C3H4N2O5 |
| 3-甲基4,5,6,6A四氢-3AH-环戊二烯并[D]异噁唑 | 3-methyl-4,5,6,6a-tetrahydro-3aH-cyclopenta<d>isoxazole | 20936-78-1 | C7H11NO |
| 3-甲基-5-氧代-2-吡唑啉-4-硫醇 | 3-methyl-5-oxo-2-pyrazoline-4-thiol | 403641-97-4 | C4H6N2OS |
| 3-甲基-5-氧代-2-吡唑啉-4-硫代羧酸 | 3-Methyl-5-oxo-4,5-dihydro-1H-pyrazole-4-carbothioic S-acid | 860409-20-7 | C5H6N2O2S |
| 3-甲基-5-氧代-2,5-二氢-1H-吡唑-1-甲酰胺 | 3-methyl-5-oxo-3-pyrazolin-1-carboxamide | 89179-80-6 | C5H7N3O2 |
| 3-甲基-5-氧代-2,5-二氢-1H-吡唑-1-甲脒 | 3-methyl-5-oxo-2,5-dihydro-1H-pyrazole-1-carboximidamide | 54655-98-0 | C5H8N4O |
| 3-甲基-5-戊基-2-异恶唑啉 | 3-methyl-5-n-pentylisoxazoline | 92511-65-4 | C9H17NO |
| 3-甲基-5-(三氯甲基)-4H-1,2-恶唑-5-醇 | 3-methyl-5-hydroxy-5-trichloromethyl-4,5-dihydroisoxazole | 135351-22-3 | C5H6Cl3NO2 |
| 3-甲基-5-(4-戊烯-1-炔基)-2-异恶唑啉 | 3-methyl-5-pent-4-en-1-ynyl-4,5-dihydro-isoxazole | 7064-16-6 | C9H11NO |
| 3-甲基-5-(2-甲基-2-丙基)-4,5-二氢-1H-吡唑-5-醇 | 5-Tert-butyl-3-methyl-1,4-dihydropyrazol-5-ol | 82755-28-0 | C8H16N2O |
| 3-甲基-5-(1-戊炔-1-基)-4,5-二氢-1,2-恶唑 | 3-Methyl-5-pentin-(1)-yl-2-isoxazolin | 7157-79-1 | C9H13NO |
| 3-甲基-4,5-二氢异噁唑-5-羧酸 | 3-Methyl-4,5-dihydroisoxazole-5-carboxylic acid | 473700-52-6 | C5H7NO3 |
| 3-甲基-3-吡唑啉-5-酮 | 1,2-dihydro-5-methyl-3H-pyrazol-3-one | 4344-87-0 | C4H6N2O |
| 3-甲基-2-吡唑啉-5-酮 | 3-methyl-1H-pyrazol-5-one | 108-26-9 | C4H6N2O |
| 3-甲基-1-苯基吡唑-5-酮-4-缩氨基硫脲 | 3-methyl-1-phenyl-pyrazol-5-one-4-thiosemicarbazone | 27161-70-2 | C11H11N5OS |
| 3-甲基-1-苯基-4-硫代苯甲酰基吡唑-5-酮 | 3-methyl-1-phenyl-4-thiobenzoyl-pyrazol-5-one | 62574-31-6 | C17H14N2OS |
| 3-甲基-1-苯基-4-(1-吡咯烷基亚甲基)-2-吡唑啉-5-酮 | 3-Methyl-1-phenyl-4-((1-pyrrolidinyl)methylene)-2-pyrazolin-5-one | 24664-56-0 | C15H17N3O |
| 3-甲基-1,2,3,6-四氢-哒嗪 | 3-methyl-1,2,3,6-tetrahydro-pyridazine | 100707-33-3 | C5H10N2 |
| 3-环戊基-1,2-恶唑-5(4H)-酮 | 3-cyclopentyl-2<i>H</i>-isoxazol-5-one | 29068-27-7 | C8H11NO2 |