| 中文名称 | 英文名称 | CAS号 | 化学式 |
|---|---|---|---|
| 2,3a-二甲基-3a,4,5,6-四氢环戊烯并[c]吡唑-3(2H)-酮 | dimethyl-3,5 diaza-2,3 bicyclo<3.3.0>octene-1 one | 89209-31-4 | C8H12N2O |
| 2,3-哌嗪二硫醇 | 2,3-Piperazinedithiol | 102275-89-8 | C4H10N2S2 |
| 2,3-吡啶二胺,6-丙基- | <i>N</i>-(4-methyl-piperazin-1-yl)-propane-1,3-diamine | 90556-54-0 | C8H20N4 |
| 2,3-双(4-甲基-1-哌嗪基)-6-硝基喹喔啉 | 2,3-Bis(4-methyl-1-piperazinyl)-6-nitroquinoxaline | 64262-08-4 | C18H25N7O2 |
| 2,3-二羟基-1,4-哌嗪二甲醛 | 1,4-Diformyl-2,3-dihydroxy-piperazin | 90084-48-3 | C6H10N2O4 |
| 2,3-二硫杂-5,7-二氮杂双环[2.2.2]辛烷-6,8-二酮 | 2,3-dithia-5,7-diazabicyclo[2.2.2]octane-6,8-dione | 21056-79-1 | C4H4N2O2S2 |
| 2,3-二甲基哌嗪-1-羧酸叔丁酯 | tert-butyl 2,3-dimethylpiperazine-1-carboxylate | 886780-49-0 | C11H22N2O2 |
| 2,3-二甲基哌嗪 | (±)trans-2,3-dimethylpiperazine | 84468-52-0 | C6H14N2 |
| 2,3-二甲基-2,3-二氮杂双环[2.2.1]庚烷 | 2,3-dimethyl-2,3-diaza-bicyclo[2.2.1]heptane | 14287-89-9 | C7H14N2 |
| 2,3-二甲基-2,3-二氮杂二环[2.2.2]辛-5-烯 | 2,3-Diaza-2,3-dimethylbicyclo<2.2.2>-octen-(5) | 14287-91-3 | C8H14N2 |
| 2,3-二甲基-1,4-二亚硝基哌嗪 | 2,3-Dimethyl-1,4-dinitrosopiperazine | 103205-72-7 | C6H12N4O2 |
| 2,3-二氮杂双环[2.2.2]辛-2-烯 2,3-二氧化物 | N,N'-dioxo-2,3-diazabicyclo<2.2.2>oct-2-ene | 36479-80-8 | C6H10N2O2 |
| 2,3-二氮杂二环[2.2.1]庚烷,2-(1,1-二甲基乙基)-,自由基离子(1+)(9CI) | (-)-(3S,4S,5S)-4,5-dihydroxy-3-hydroxymethylhexahydropyridazine | 226988-19-8 | C5H12N2O3 |
| 2,3-二氮杂三环[2.2.2.21,4]癸烷 | 2,3-Diazatricyclo[2.2.2.21,4]decane(9CI) | 147951-83-5 | C8H14N2 |
| 2,3,5,6-四羟基哌嗪-1,4-二甲醛 | 2,3,5,6-tetrahydroxypiperazine-1,4-dicarbaldehyde | 1534-22-1 | C6H10N2O6 |
| 2,3,5,6-四甲基-4-硝基-N-{2-[4-(吡啶-2-基)哌嗪-1-基]乙基}苯酰胺二盐酸 | hydron;2,3,5,6-tetramethyl-4-nitro-N-[2-(4-pyridin-2-ylpiperazin-1-yl)ethyl]benzamide;dichloride | —— | C22H31Cl2N5O3 |
| 2,3,5,6-四甲基-1,4-二亚硝基哌嗪 | 2,3,5,6-Tetramethyl-1,4-dinitrosopiperazine | 23264-57-5 | C8H16N4O2 |
| 2,3,3,5,6,6-六甲基-7-氧杂-2,5-二氮杂双环[2.2.1]庚烷 | 2,3,3,5,6,6-Hexamethyl-7-oxa-2,5-diazabicyclo[2.2.1]heptane | 103755-80-2 | C10H20N2O |
| 2,2-二甲基哌嗪双盐酸盐 | 2,2-Dimethylpiperazine dihydrochloride | 128427-07-6 | C6H16Cl2N2 |
| 2,2-二甲基哌嗪 | 2,2-dimethylpiperazine | 84477-72-5 | C6H14N2 |
| 2,2-二甲基-3-(4-甲基哌嗪-1-基)丙-1-醇 | 2,2-Dimethyl-3-(4-methylpiperazin-1-YL)propan-1-OL | 152575-57-0 | C10H22N2O |
| 2,2-二甲基-3-(4-甲基-哌嗪-1-基)丙醛 | 2,2-dimethyl-3-(4-methyl-piperazin-1-yl)propanal | 462068-50-4 | C10H20N2O |
| 2,2-二甲基-1-哌嗪羧酸乙酯 | Ethyl 2,2-dimethylpiperazine-1-carboxylate | 846052-90-2 | C9H18N2O2 |
| 2,2-二甲基-1,3-氧硫杂环已烷 | ethyl (E)-2-cyano-3-[4-[4-[2-(1,3-dioxobenzo[de]isoquinolin-2-yl)ethyl]piperazin-1-yl]phenyl]prop-2-enoate | 5809-68-7 | C30H28N4O4 |
| 2,2-二氯-1-[4-(4-硝基苯基)哌嗪-1-基]乙酮 | 2,2-dichloro-1-(4-(4-nitrophenyl)piperazine-1-yl)ethan-1-one | 77367-94-3 | C12H13Cl2N3O3 |
| 2,2-二氯-1-(4-甲基-1-哌嗪基)乙酮 | 2,2-dichloro-1-(4-methylpiperazin-1-yl)ethan-1-one | 77368-14-0 | C7H12Cl2N2O |
| 2,2-二氟-1-(4-甲基-1-哌嗪基)乙酮 | 2,2-Difluoro-1-(4-methylpiperazin-1-yl)ethan-1-one | 121412-30-4 | C7H12F2N2O |
| 2,2-二氟-1-(1-哌嗪基)-4-戊烯-1-酮 | 2,2-Difluoro-1-(piperazin-1-yl)pent-4-en-1-one | 191351-84-5 | C9H14F2N2O |
| 2,2-二乙基-2,3,5,8-四氢-5,8-乙桥-1H-吡唑并[1,2-a]哒嗪 | 2,2-diethyl-2,3,5,8-tetrahydro-1<i>H</i>-5,8-ethano-pyrazolo[1,2-<i>a</i>]pyridazine | 72282-76-9 | C13H22N2 |
| 2,2,5-三甲基哌嗪 | 2,2,5-trimethylpiperazine | 139139-56-3 | C7H16N2 |
| 2,2,5,5-四甲基哌嗪二盐酸盐 | 2,2,5,5-Tetramethylpiperazine dihydrochloride | 858851-27-1 | C8H20Cl2N2 |
| 2,2,5,5-四甲基哌嗪 | 2,2,5,5-tetramethyl-piperazine | 5434-90-2 | C8H18N2 |
| 2,2,5,5-四氟-1,4-二氮杂二环[2.2.2]辛烷 | 1,4-dihydroxy-2,2,5,6-tetramethylpiperazine | 88571-72-6 | C8H18N2O2 |
| 2,2,4-三甲基-1-(2-甲基-2-丙烯-1-基)哌嗪 | 1,3,3-Trimethyl-4-iosbutenyl-piperazin | 103640-14-8 | C11H22N2 |
| 2,2,4-三甲基-1,5-二氮杂-螺[5.5]十一烷 | 2,2-Pentamethylen-4,4,6-trimethyl-hexahydro-pyridmidin | 21587-67-7 | C12H24N2 |
| 2,2,4,6-四甲基-1-(丙酰基)哌嗪 | 1-Propionyl-2,2,4,6-tetramethyl-piperazin | 4177-42-8 | C11H22N2O |
| 2,2,4,4-四甲基-1-[4-(2-甲基丙基)苯基]-3-(4-苯基哌嗪-1-基)环丁烷-1-醇 | 1-(4-isobutyl-phenyl)-2,2,4,4-tetramethyl-3-(4-phenyl-piperazin-1-yl)-cyclobutanol | 57263-46-4 | C28H40N2O |
| 2,2,4,4-四甲基-1-[4-(2-甲基丙基)苯基]-3-(4-吡啶-2-基哌嗪-1-基)环丁烷-1-醇 | 1-(4-isobutyl-phenyl)-2,2,4,4-tetramethyl-3-(4-pyridin-2-yl-piperazin-1-yl)-cyclobutanol | 57263-18-0 | C27H39N3O |
| 2,2,4,4-四甲基-1-(4-甲基哌嗪-1-基)戊烷-1-酮 | 1-methyl-4-(2,2,4,4-tetramethyl-pentanoyl)-piperazine | 32905-69-4 | C14H28N2O |
| 2,2,4,4,6-五甲基-六氢嘧啶 | acetonin | 53422-22-3 | C9H20N2 |
| 2,2,2-三氟-1-[4-(甲基磺酰基)-1-哌嗪]乙酮 | 2,2,2-trifluoro-1-[4-(methylsulfonyl)piperazin-1-yl]ethan-1-one | 1027258-48-5 | C7H11F3N2O3S |
| 2,2,2-三氟-1-(5-(4-甲基哌嗪-1-基)-2-(4-硝基苯基)恶唑-4-基)乙酮 | 2,2,2-trifluoro-1(5-(4methylpiperazin-1-yl)-2-(4-nitrophenyl)oxazol-4-yl)ethanone | 1029804-12-3 | C16H15F3N4O4 |
| 2,2,2-三氟-1-(1-哌嗪基)乙酮盐酸盐(1:1) | 2,2,2-trifluoro-1-(piperazin-1-yl)ethan-1-one hydrochloride | 245487-45-0 | C6H9F3N2O*ClH |
| 2,2'-偶氮二(2-甲基丙腈) | 4a,8a-dimethyl-decahydro-pyrazino[2,3-<i>b</i>]pyrazine | 75804-30-7 | C8H18N4 |
| 2,2'-(哌嗪-1,4-二基)双(N-(4-氨基苯基)-N-甲基乙酰胺)(尼达尼布杂质) | 2,2-(Piperazine-1,4-diyl)bis(N-(4-aminophenyl)-N-methylacetamide) | 2410284-89-6 | C22H30N6O2 |
| 2,2'-(1,4-哌嗪二基)二-嘧啶 | 1,4-di-pyrimidin-2-yl-piperazine | 84746-24-7 | C12H14N6 |
| 2,2'-(1,3-哌嗪二基)二乙醇 | 2,2'-(Piperazine-1,3-diyl)di(ethan-1-ol) | 117186-75-1 | C8H18N2O2 |
| 2(S)-(苯磺酰氨基)-3-[4-(1-哌嗪基)苯甲酰氨基]丙酸 | (S)-2-Benzenesulfonylamino-3-(4-piperazin-1-yl-benzoylamino)-propionic acid | 163209-37-8 | C20H24N4O5S |
| 2(1H)-喹啉酮,1-[3-[4-(3-氯苯基)-1-哌嗪基]丙基]-3,4-二氢-5-甲氧基-,盐酸盐 | 1-[3-[4-(3-chlorophenyl)-1-piperazinyl]propyl]-3,4-dihydro-5-methoxy-2(1H)-quinolinone hydrochloride | 145969-31-9 | C23H28ClN3O2*ClH |
| 1,4-二乙酰基哌嗪 | 1,4-diacetylpiperazine | 18940-57-3 | C8H14N2O2 |