| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 1251-35-0 | | pyridinium, 1,1'-((2,2-bis(bromomethyl)trimethylenedioxydimethylene))bis(4-form | | | | |
| 1251-84-9 | 3,5,6,7,3',4'-六甲氧基黄酮 | 3,5,6,7,3',4'-hexamethoxyflavone | | | | |
| 1251-85-0 | 4,4'-二安替比尔甲烷单水合物 | 4,4'-methylenebis(1,2-dihydro-1,5-dimethyl-2-phenyl)-3H-Pyrazol-3-one | C23H24N4O2 | 388.46 | 178-180℃ | |
| 12510-42-8 | 毛沸石 | erionite | | | | |
| 1251000-12-0 | 6-氧代-8-氧杂-2,5-二氮杂螺[叔丁基][3.5]壬烷-2-羧酸叔丁酯 | tert-butyl 6-oxo-8-oxa-2,5-diazaspiro[3.5]nonane-2-carboxylate | | | | |
| 1251000-17-5 | 5-氧代-8-苯基-2,6-二氮杂螺[叔丁基] [3.4]辛烷-2-羧酸叔丁酯 | tert-butyl 5-oxo-8-phenyl-2,6-diazaspiro[3.4]octane-2-carboxylate | | | | |
| 1251001-17-8 | | (3ar,4R,7as)-tert-butyl 4-(tert-butoxycarbonylamino)hexahydro-1h-isoindole-2(3h)-carboxylate | | | | |
| 1251001-40-7 | 5-氨基-2h-异吲哚-2-羧酸叔丁酯 | tert-butyl 5-amino-2h-isoindole-2-carboxylate | | | | |
| 1251002-00-2 | 6-boc-1,6-二氮杂螺[3.5]壬烷 | tert-butyl 1,6-diazaspiro[3.5]nonane-6-carboxylate | | | | |
| 1251002-01-3 | 8-氧杂-2,5-二氮杂螺[叔丁基][3.5]壬烷-2-羧酸叔丁酯 | tert-butyl 8-oxa-2,5-diazaspiro[3.5]nonane-2-carboxylate | | | | |
| 1251002-28-4 | 2-[(叔丁氧基)羰基]-5-氧杂-2-氮杂螺[3.5]壬烷-6-羧酸 | 2-[(tert-butoxy)carbonyl]-5-oxa-2-azaspiro[3.5]nonane-6-carboxylic acid | | | | |
| 1251002-39-7 | 2-{2-[(叔丁氧基)羰基]-2-氮杂螺[3.3]庚-6-基}乙酸 | 2-{2-[(tert-butoxy)carbonyl]-2-azaspiro[3.3]heptan-6-yl}acetic acid | | | | |
| 1251002-42-2 | 6-(叔丁氧基羰基)-6-氮杂螺[3.4]辛烷-2-羧酸 | 6-(tert-butoxycarbonyl)-6-azaspiro[3.4]octane-2-carboxylic acid | | | | |
| 1251002-91-1 | | 1-methyl-5-oxo-4,6,8,9-tetrahydro-5h-3-oxa-2,4,7-triaza-cyclopenta[a]naphthalene-7-carboxylicacidbenzylester | | | | |
| 1251003-08-3 | 6-[(叔丁氧基)羰基]-3ah,4h,5h,6h,7h,7ah-[1,2]噁唑并[5,4-c]吡啶-3-羧酸 | 6-[(tert-butoxy)carbonyl]-3ah,4h,5h,6h,7h,7ah-[1,2]oxazolo[5,4-c]pyridine-3-carboxylic acid | | | | |
| 1251003-11-8 | 3-溴咪唑并[1,5-a]嘧啶-8-羧酸乙酯 | ethyl 3-bromoimidazo[1,5-a]pyrimidine-8-carboxylate | | | | |
| 1251003-79-8 | 9-氧杂-2,6-二氮杂螺[4-]癸烷-2-羧酸叔丁酯 | tert-butyl 9-oxa-2,6-diazaspiro[4.5]decane-2-carboxylate | | | | |
| 1251003-89-0 | 顺式叔丁基4-氧代六氢吡咯并[3,4-c]吡咯-2(1h)-羧酸盐 | cis-tert-butyl 4-oxohexahydropyrrolo[3,4-c]pyrrole-2(1h)-carboxylate | | | | |
| 1251003-99-2 | | racemic cis-4,6-dioxo- hexahydro-pyrrolo[3,4-c]pyrrole-2-carboxylic acid tert-butyl ester | | | | |
| 1251004-07-5 | 外消旋顺式-6-氧代-八氢-吡咯并[3,4-c]吡啶-2-羧酸叔丁酯 | racemic cis-6-oxo-octahydro-pyrrolo[3,4-c]pyridine-2-carboxylic acid tert-butyl ester | | | | |
| 1251004-25-7 | 3-boc-8-氧代-3-氮杂双环[4.2.0]辛烷 | 3-boc-8-oxo-3-azabicyclo[4.2.0]octane | | | | |
| 1251004-33-7 | 7-boc-2,7-二氮杂双环[4.2.0]辛烷 | 7-boc-2,7-diazabicyclo[4.2.0]octane | | | | |
| 1251004-54-2 | 2-(叔丁氧基羰基)-2-氮杂双环[3.1.0]己烷-5-羧酸 | 2-(tert-butoxycarbonyl)-2-azabicyclo[3.1.0]hexane-5-carboxylic acid | | | | |
| 1251004-87-1 | n-boc-2-氮杂双环[3.1.0]己烷-1,2-二羧酸 | 2-(tert-butoxycarbonyl)-2-azabicyclo[3.1.0]hexane-1-carboxylic acid | | | | |
| 1251005-34-1 | rel-((1S,5S)-3-(叔丁氧基羰基)-3-氮杂双环[3.1.0]己烷-1-羧酸) | rel-((1S,5S)-3-(tert-butoxycarbonyl)-3-azabicyclo[3.1.0]hexane-1-carboxylic acid) | | | | |
| 1251005-45-4 | 1,6-二氮杂螺[1,6]壬烷-1-羧酸叔丁酯 | tert-butyl 1,6-diazaspiro[3.5]nonane-1-carboxylate | | | | |
| 1251005-61-4 | 5-氧杂-2,8-二氮杂螺[3,5]壬烷-8-羧酸叔丁酯 | tert-butyl 5-oxa-2,8-diazaspiro[3.5]nonane-8-carboxylate | | | | |
| 1251005-78-3 | 1-boc-1’,2’-二氢螺[氮杂环丁烷-3,3’-吡咯并[3,2-b]吡啶] | tert-butyl 1',2'-dihydrospiro[azetidine-3,3'-pyrrolo[3,2-b]pyridine]-1-carboxylate | | | | |
| 1251005-80-7 | 8-氧杂-2,5-二氮杂螺[叔丁基][3.6]癸烷-2-羧酸叔丁酯 | tert-butyl 8-oxa-2,5-diazaspiro[3.6]decane-2-carboxylate | | | | |
| 1251006-00-4 | 2-[(叔丁氧基)羰基]-5-氧杂-2-氮杂螺[3.4]辛烷-6-羧酸 | 2-[(tert-butoxy)carbonyl]-5-oxa-2-azaspiro[3.4]octane-6-carboxylic acid | | | | |
| 1251006-64-0 | 3-(哌啶-4-基)氮杂环丁烷-1-羧酸叔丁酯 | tert-butyl 3-(piperidin-4-yl)azetidine-1-carboxylate | | | | |
| 1251006-73-1 | 3-(哌啶-3-基)氮杂环丁烷-1-羧酸叔丁酯 | tert-butyl 3-(piperidin-3-yl)azetidine-1-carboxylate | | | | |
| 1251007-27-8 | rel-(3ar,6as)-5,5-二氟八氢环戊二烯并[c]吡咯 | rel-(3ar,6as)-5,5-difluorooctahydrocyclopenta[c]pyrrole | | | | |
| 1251007-45-0 | 2,7-二氮杂双环[4.2.0]辛烷-2-羧酸叔丁酯 | tert-butyl 2,7-diazabicyclo[4.2.0]octane-2-carboxylate | | | | |
| 1251007-76-7 | 2-(叔丁氧基羰基)-2-氮杂双环[2.2.1]庚烷-7-羧酸 | 2-(tert-butoxycarbonyl)-2-azabicyclo[2.2.1]heptane-7-carboxylic acid | | | | |
| 1251007-91-6 | 8-氧代-6-氧杂-2,9-二氮杂螺[4-]癸烷-2-羧酸叔丁酯 | tert-butyl 8-oxo-6-oxa-2,9-diazaspiro[4.5]decane-2-carboxylate | | | | |
| 1251008-10-2 | | 8-amino-1-azaspiro[4.5]decan-2-one hydrochloride | | | | |
| 1251008-17-9 | | tert-butyl 2',3'-dihydrospiro{piperidine-4,1'-pyrrolo[3,2-b]pyridine}-1-carboxylate | | | | |
| 1251008-46-4 | | cis-4,4-difluorooctahydrocyclopenta[c]pyrrole | | | | |
| 1251009-03-6 | 8-氧代-2,7-二氮杂螺[叔丁基] [4.4]壬烷-2-羧酸叔丁酯 | tert-butyl 8-oxo-2,7-diazaspiro[4.4]nonane-2-carboxylate | | | | |
| 1251009-14-9 | 苄基-(3ar,6ar)-八氢吡咯并[3,2-b]吡咯-1-羧酸酯 | benzyl rel-(3ar,6ar)-octahydropyrrolo[3,2-b]pyrrole-1-carboxylate | | | | |
| 1251009-38-7 | 5-氧杂-2,9-二氮杂螺[-3]癸烷-2-羧酸叔丁酯 | tert-butyl 5-oxa-2,9-diazaspiro[3.6]decane-2-carboxylate | | | | |
| 1251009-46-7 | | 2-(tert-butoxycarbonyl)-5-oxa-2-azaspiro[3.4]octane-7-carboxylic acid | | | | |
| 1251009-79-6 | (2-溴-4,5,6,7-四氢苯并[d]噻唑-6-基)氨基甲酸叔丁酯 | tert-butyl (2-bromo-4,5,6,7-tetrahydrobenzo[d]thiazol-6-yl)carbamate | | | | |
| 1251010-17-9 | 1-氧代-6-氮杂螺[叔丁基][3.4]辛烷-6-羧酸叔丁酯 | tert-butyl 1-oxo-6-azaspiro[3.4]octane-6-carboxylate | | | | |
| 1251010-30-6 | 1-氨基-6-氮杂螺[叔丁基][3.4]辛烷-6-羧酸叔丁酯 | tert-butyl 1-amino-6-azaspiro[3.4]octane-6-carboxylate | | | | |
| 1251010-45-3 | 9-boc-3-氧杂-7,9-二氮杂双环[3.3.1]壬烷 | 9-boc-3-oxa-7,9-diazabicyclo[3.3.1]nonane | | | | |
| 1251010-63-5 | 叔丁基(3as,7as)-八氢-1h-吡咯并[3,2-b]吡啶-1-羧酸盐-rel | tert-butyl (3as,7as)-octahydro-1h-pyrrolo[3,2-b]pyridine-1-carboxylate-rel | | | | |
| 1251010-74-8 | 3-丁基-3-苯基-八氢吡咯并[3,2-b]吡咯-1-羧酸叔丁酯 | tert-butyl 3a-phenyl-octahydropyrrolo[3,2-b]pyrrole-1-carboxylate | | | | |
| 1251010-90-8 | 2-氨基-8-氮杂螺[4-]癸烷-8-羧酸叔丁酯 | tert-butyl 2-amino-8-azaspiro[4.5]decane-8-carboxylate | | | | |
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