| 中文名称 | 英文名称 | CAS号 | 化学式 |
|---|---|---|---|
| 2,3-二氢-6-甲基-3-氧代-4-哒嗪甲酸乙酯 | ethyl 3-methyl-6-oxo-1H-pyridazine-5-carboxylate | 2125-90-8 | C8H10N2O3 |
| 2,3-二氢-6-丙基-2-硒代-4(1H)-嘧啶酮 | 6-Propyl-2-selenouracil | 126632-05-1 | C7H9N2OSe |
| 2,3-二氢-6-(4-甲氧基苯基)-2-硫氧代-4(1h)-嘧啶酮 | 6-(4-methoxyphenyl)-2-thioxo-2,3-dihydropyrimidin-4(1H)-one | 33166-87-9 | C11H10N2O2S |
| 2,3-二氢-6-(3-甲氧基苯基)-2-硫氧代-4(1h)-嘧啶酮 | 6-m-Methoxyphenyl-2-thiouracil | 33166-84-6 | C11H10N2O2S |
| 2,3-二氢-5H-[1,3]噻唑并[3,2-a]嘧啶-6-甲醇 | 2,3-dihydro-5H-[1,3]thiazolo[3,2-a]pyrimidin-6-ylmethanol | 859850-74-1 | C7H10N2OS |
| 2,3-二氢-5-(2-羟基乙基)-6-甲基-2-硫氧代-1H-嘧啶-4-酮 | 5-(2-hydroxyethyl)-6-methyl-2-thiouracil | 21585-16-0 | C7H10N2O2S |
| 2,3-二氢-5-(2-羟基乙基)-2-硫氧代-4(1h)-嘧啶酮 | 5-(2-hydroxyethyl)-2-thiouracil | 23956-11-8 | C6H8N2O2S |
| 2,3-二氢-5-(2-甲基-2-丙烯基)-5-丙基-2-硫代-4,6(1H,5H)-嘧啶二酮 | 5-methallyl-5-propyl-2-thio-barbituric acid | 67051-58-5 | C11H16N2O2S |
| 2,3-二氢-5-(2-甲基-2-丙烯基)-5-(1-甲基丙基)-2-硫代-4,6(1H,5H)-嘧啶二酮 | 5-<i>sec</i>-butyl-5-methallyl-2-thio-barbituric acid | 67051-50-7 | C12H18N2O2S |
| 2,3-二氢-5-(2-甲基-2-丙烯基)-5-(1-甲基丁基)-2-硫代-4,6(1H,5H)-嘧啶二酮 | 5-methallyl-5-(1-methyl-butyl)-2-thio-barbituric acid | 67051-46-1 | C13H20N2O2S |
| 2,3-二氢-5-(1-甲基-1-丙烯基)-5-丙基-2-硫代-4,6(1H,5H)-嘧啶二酮 | 5-(1-methyl-propenyl)-5-propyl-2-thio-barbituric acid | 66843-07-0 | C11H16N2O2S |
| 2,3-二氢-4-氨基嘧啶 | 2,3-Dihydropyrimidin-4-amine | 19408-86-7 | C4H7N3 |
| 2,3-二氢-3-甲基-6-(4-吡啶)-2-硫氧代-4(1H)-嘧啶酮 | 2-mercapto-3-methyl-6-pyridin-4-yl-3H-pyrimidin-4-one | 521969-43-7 | C10H9N3OS |
| 2,3-二氢-3-氧代-5,6-二苯基-4-哒嗪甲腈 | 3-oxo-5,6-diphenyl-2,3-dihydro-pyridazine-4-carbonitrile | 79225-55-1 | C17H11N3O |
| 2,3-二氢-2-羟基-2-苯基-1H-嘧啶-4-酮 | 2,3-Dihydro-2-hydroxy-2-phenyl-4(1H)-pyrimidinone | 68921-95-9 | C10H10N2O2 |
| 2,3-二氢-2-硫氧代-4-嘧啶羧醛 | 2-Sulfanylidene-2,3-dihydropyrimidine-4-carbaldehyde | 71183-60-3 | C5H4N2OS |
| 2,3-二氢-2-硒代-4(1H)-嘧啶酮 | 2-selenouracil | 16724-03-1 | C4H4N2OSe |
| 2,3-二氢-2-甲基-3-氧代-(9ci)-4-吡啶羧酸 | 2-methyl-3-oxo-2,3-dihydro-pyridazine-4-carboxylic acid | 397309-47-6 | C6H6N2O3 |
| 2,3-二氢-1-甲基-2-硫氧代-[4,4-Bi嘧啶]-6(1H)-酮 | 2-mercapto-3-methyl-6-(4-pyrimidyl)-3H-pyrimidin-4-one | 503860-53-5 | C9H8N4OS |
| 2,3-二氟-4-羟基苯甲酸 | 2,3-Dimethylthieno<3,4-b>pyrazin-1-oxid | 78648-60-9 | C8H8N2OS |
| 2,3-二己基噻吩并[3,4-b]吡嗪 | 2,3-dihexylthieno[3,4-b]pyrazine | 146058-82-4 | C18H28N2S |
| 2,3-二乙基吡嗪 | 2,3-diethylpyrazine | 15707-24-1 | C8H12N2 |
| 2,3-二乙基-5-甲基吡嗪 | 2,3-diethyl-5-methylpyrazine | 18138-04-0 | C9H14N2 |
| 2,3-二(2-吡啶基)吡嗪 | 2,3-bis(2'-pyridyl)pyrazine | 25005-96-3 | C14H10N4 |
| 2,3,9,10,16,17,23,24-八(二乙氨基)-1,4,8,11,15,18,22,25-八氮杂酞菁镁(II) | 2,3,9,10,16,17,23,24-octakis(diethylamino)-1,4,8,11,15,18,22,25-octaazaphthalocyanine magnesium(II) | 1052640-39-7 | C56H80MgN24 |
| 2,3,6-三甲基-吡嗪并[2,3-b]吡嗪 | 2,3,6-Trimethyl-1,4,5,8-tetra-azanaphthalin | 6479-02-3 | C9H10N4 |
| 2,3,6-三甲基-4(3H)-嘧啶酮 | 2,3,6-trimethyl-4(3H)-pyrimidin-4-one | 32363-51-2 | C7H10N2O |
| 2,3,6,7-四甲基-吡嗪并(2,3-b)吡嗪 | 2,3,6,7-tetramethyl-pyrazino[2,3-<i>b</i>]pyrazine | 6479-03-4 | C10H12N4 |
| 2,3,6,7-四氢-7-(1-甲基乙基)-5H-噻唑并(3,2-a)嘧啶-5-酮 | 7-isopropyl-5-oxo-2,3,6,7-tetrahydro-5H-thiazolo[3,2-a]pyrimidine | 81530-26-9 | C9H14N2OS |
| 2,3,6,7-四氢-7,7-二甲基-5H-噻唑并(3,2-a)嘧啶-5-酮 | 7,7-dimethyl-5-oxo-2,3,6,7-tetrahydro-5H-thiazolo[3,2-a]pyrimidine | 81530-34-9 | C8H12N2OS |
| 2,3,6,7-四氢-5H-环戊并[d]吡嗪-1,4-二酮 | 3,5,6,7-tetrahydro-2H-cyclopenta[d]pyridazine-1,4-dione | 92224-44-7 | C7H8N2O2 |
| 2,3,5-三苯基吡嗪 | 2,3,5-triphenylpyrazine | 36476-77-4 | C22H16N2 |
| 2,3,5-三甲基吡嗪 | 2,3,5-trimethylpyrazine | 14667-55-1 | C7H10N2 |
| 2,3,5-三甲基-6-丙基吡嗪 | 2,3,5-trimethyl-6-propylpyrazine | 92233-82-4 | C10H16N2 |
| 2,3,5-三甲基-6-[(3E)-3-戊烯-1-基]吡嗪 | 2,3,5-Trimethyl-6-(pent-3-EN-1-YL)pyrazine | 107209-24-5 | C12H18N2 |
| 2,3,5-三溴吡嗪 | 2,3,5-tribromopyrazine | 32314-09-3 | C4HBr3N2 |
| 2,3,5-三氯吡嗪 | 2,3,5-trichloropyrazine | 873-40-5 | C4HCl3N2 |
| 2,3,5-三乙基吡嗪 | Triethylpyrazin | 38028-82-9 | C10H16N2 |
| 2,3,5,6-四甲基吡嗪1-氧化物 | 2,3,5,6-tetramethylpyrazine-N-oxide | 22978-83-2 | C8H12N2O |
| 2,3,5,6-四溴吡嗪 | Tetrabrompyrazin | 23987-37-3 | C4Br4N2 |
| 2,3,5,6-四氯-4-吡啶酚钠 | 4-Pyridinol,2,3,5,6-tetrachloro-, sodium salt (1:1) | 5000-22-6 | C5HCl4NNaO |
| 2,3,5,6-四(甲氧基甲基)吡嗪 | 2,3,5,6-tetrakis(methoxymethyl)pyrazine | 1026999-56-3 | C12H20N2O4 |
| 2,3,5,6-吡嗪四腈 | tetracyanopyrazine | 33420-37-0 | C8N6 |
| 2,3,5,6-吡嗪四羧酸 | pyrazine-2,3,5,6-tetracarboxylic acid | 43193-60-8 | C8H4N2O8 |
| 2,3,5,6,7,8-六氢酞嗪-1,4-二酮 | 2,3,5,6,7,8-hexahydrophthalazine-1,4-dione | 67279-23-6 | C8H10N2O2 |
| 2,3,4,6-四乙基-1,4-吡嗪 | 2,3,5,6-tetraethylpyrazine | 38325-19-8 | C12H20N2 |
| 2,3,4,5-四氢-6-(4-甲基苯基)-3-哒嗪酮 | 6-(4-methylphenyl)-4,5-dihydro-3(2H)-pyridazinone | 1079-72-7 | C11H12N2O |
| 2,3,4,5-四氢-6(4-氯苯基)-3(2H-)-吡嗪酮 | 6-(4-chlorophenyl)-4,5-dihydro-3(2H)-pyridazinone | 1079-73-8 | C10H9ClN2O |
| 2,3,4,5,6,7-六氢-2,4-二氧代-N,N,3-三甲基-1H-环戊烯并嘧啶-1-乙酰胺 | <i>N</i>,<i>N</i>-dimethyl-2-(3-methyl-2,4-dioxo-2,3,4,5,6,7-hexahydro-cyclopentapyrimidin-1-yl)-acetamide | 49786-46-1 | C12H17N3O3 |
| 2,3,4,5,6,7-六氢-2,4-二氧代-3-苯基-1H-环戊烯并嘧啶-1-乙酰胺 | 2-(2,4-dioxo-3-phenyl-2,3,4,5,6,7-hexahydro-cyclopentapyrimidin-1-yl)-acetamide | 49786-43-8 | C15H15N3O3 |