CAS号查询库

CAS号是公开的化学物质信息的最权威的集合。CAS号涵盖从1957年至今的科学文献中确定的物质，其他物质可追溯到20世纪初。它也称CAS编号(CAS Registry Number，或称CAS Number，CAS Rn，CAS #)，又称CAS登录号或CAS登记号码，是某种物质(化合物、高分子材料、生物序列(Biological sequences)、混合物或合金)的唯一的数字识别号码。美国化学会的下设组织化学文摘社(Chemical Abstracts Service，简称CAS)负责为每一种出现在文献中的物质分配一个CAS编号，其目的是为了避免化学物质有多种名称的麻烦，使数据库的检索更为方便。如今几乎所有的化学数据库都允许用CAS编号检索。

名称	英文名	物理化学性质	CAS号	分子式
5-(1,5-dioxa-9-azaspiro[5.5]undecan-9-ylsulfonyl)-3-methylbenzo[d]oxazol-2(3H)-one	5-(1,5-dioxa-9-azaspiro[5.5]undecan-9-ylsulfonyl)-3-methylbenzo[d]oxazol-2(3H)-one	分子量：368.4 密度：N/A 沸点：N/A 熔点：N/A	1428349-71-6	C₁₆H₂₀N₂O₆S
2-(cyclopentylthio)-N-((1-(pyridin-3-ylsulfonyl)piperidin-4-yl)methyl)acetamide	2-(cyclopentylthio)-N-((1-(pyridin-3-ylsulfonyl)piperidin-4-yl)methyl)acetamide	分子量：397.6 密度：N/A 沸点：N/A 熔点：N/A	1448063-10-2	C₁₈H₂₇N₃O₃S₂
3-methyl-2-oxo-N-(1-oxo-1,2,3,4-tetrahydroisoquinolin-7-yl)-2,3-dihydrobenzo[d]oxazole-5-sulfonamide	3-methyl-2-oxo-N-(1-oxo-1,2,3,4-tetrahydroisoquinolin-7-yl)-2,3-dihydrobenzo[d]oxazole-5-sulfonamide	分子量：373.4 密度：N/A 沸点：N/A 熔点：N/A	1428351-49-8	C₁₇H₁₅N₃O₅S
N-((2,5-dimethylfuran-3-yl)methyl)-1,3,5-trimethyl-1H-pyrazole-4-sulfonamide	N-((2,5-dimethylfuran-3-yl)methyl)-1,3,5-trimethyl-1H-pyrazole-4-sulfonamide	分子量：297.38 密度：N/A 沸点：N/A 熔点：N/A	1428356-97-1	C₁₃H₁₉N₃O₃S
N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)cinnamamide	N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)cinnamamide	分子量：297.35 密度：N/A 沸点：N/A 熔点：N/A	1798283-54-1	C₁₇H₁₉N₃O₂
N-(2-hydroxy-2-methyl-3-(methylthio)propyl)-3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-5-sulfonamide	N-(2-hydroxy-2-methyl-3-(methylthio)propyl)-3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-5-sulfonamide	分子量：346.4 密度：N/A 沸点：N/A 熔点：N/A	1448075-61-3	C₁₃H₁₈N₂O₅S₂
N-(2-hydroxy-2-(thiophen-2-yl)propyl)-1,3,5-trimethyl-1H-pyrazole-4-sulfonamide	N-(2-hydroxy-2-(thiophen-2-yl)propyl)-1,3,5-trimethyl-1H-pyrazole-4-sulfonamide	分子量：329.4 密度：N/A 沸点：N/A 熔点：N/A	1448132-43-1	C₁₃H₁₉N₃O₃S₂
N-(2-hydroxy-2-(thiophen-2-yl)propyl)-3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-5-sulfonamide	N-(2-hydroxy-2-(thiophen-2-yl)propyl)-3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-5-sulfonamide	分子量：368.4 密度：N/A 沸点：N/A 熔点：N/A	1448059-42-4	C₁₅H₁₆N₂O₅S₂
N-(3-(furan-3-yl)-3-hydroxypropyl)-1,3,5-trimethyl-1H-pyrazole-4-sulfonamide	N-(3-(furan-3-yl)-3-hydroxypropyl)-1,3,5-trimethyl-1H-pyrazole-4-sulfonamide	分子量：313.37 密度：N/A 沸点：N/A 熔点：N/A	1448034-60-3	C₁₃H₁₉N₃O₄S
2-((difluoromethyl)sulfonyl)-N-(5-(1,1-dioxidoisothiazolidin-2-yl)-2-methylphenyl)benzamide	2-((difluoromethyl)sulfonyl)-N-(5-(1,1-dioxidoisothiazolidin-2-yl)-2-methylphenyl)benzamide	分子量：444.5 密度：N/A 沸点：N/A 熔点：N/A	1448037-88-4	C₁₈H₁₈F₂N₂O₅S₂
N-(5-(1,1-dioxidoisothiazolidin-2-yl)-2-methylphenyl)-2-oxoimidazolidine-1-carboxamide	N-(5-(1,1-dioxidoisothiazolidin-2-yl)-2-methylphenyl)-2-oxoimidazolidine-1-carboxamide	分子量：338.38 密度：N/A 沸点：N/A 熔点：N/A	1448075-71-5	C₁₄H₁₈N₄O₄S
1-methyl-N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)-2-oxo-1,2-dihydropyridine-3-carboxamide	1-methyl-N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)-2-oxo-1,2-dihydropyridine-3-carboxamide	分子量：302.33 密度：N/A 沸点：N/A 熔点：N/A	1797015-72-5	C₁₅H₁₈N₄O₃
4-Ethoxy-3-(prop-2-en-1-yloxy)benzaldehyde	4-Ethoxy-3-(prop-2-en-1-yloxy)benzaldehyde	分子量：206.24 密度：N/A 沸点：N/A 熔点：N/A	1797940-59-0	C₁₂H₁₄O₃
N-(4-methoxy-3-(2-oxopyrrolidin-1-yl)phenyl)-1-methyl-1H-pyrazole-4-sulfonamide	N-(4-methoxy-3-(2-oxopyrrolidin-1-yl)phenyl)-1-methyl-1H-pyrazole-4-sulfonamide	分子量：350.4 密度：N/A 沸点：N/A 熔点：N/A	1448063-40-8	C₁₅H₁₈N₄O₄S
(E)-N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)-3-(thiophen-2-yl)acrylamide	(E)-N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)-3-(thiophen-2-yl)acrylamide	分子量：303.4 密度：N/A 沸点：N/A 熔点：N/A	1798420-78-6	C₁₅H₁₇N₃O₂S
(E)-3-(furan-3-yl)-N-(4-(2-oxopiperidin-1-yl)phenyl)acrylamide	(E)-3-(furan-3-yl)-N-(4-(2-oxopiperidin-1-yl)phenyl)acrylamide	分子量：310.3 密度：N/A 沸点：N/A 熔点：N/A	1448140-33-7	C₁₈H₁₈N₂O₃
(E)-N-(4-methyl-3-(2-oxopiperidin-1-yl)phenyl)-3-(4-(methylthio)phenyl)acrylamide	(E)-N-(4-methyl-3-(2-oxopiperidin-1-yl)phenyl)-3-(4-(methylthio)phenyl)acrylamide	分子量：380.5 密度：N/A 沸点：N/A 熔点：N/A	1798395-01-3	C₂₂H₂₄N₂O₂S
(1-((2-Chloropyrimidin-4-yl)methyl)azetidin-3-yl)methanol	(1-((2-Chloropyrimidin-4-yl)methyl)azetidin-3-yl)methanol	分子量：213.66 密度：N/A 沸点：N/A 熔点：N/A	1420843-48-6	C₉H₁₂ClN₃O
(E)-3-(furan-3-yl)-N-(4-methyl-3-(2-oxopiperidin-1-yl)phenyl)acrylamide	(E)-3-(furan-3-yl)-N-(4-methyl-3-(2-oxopiperidin-1-yl)phenyl)acrylamide	分子量：324.4 密度：N/A 沸点：N/A 熔点：N/A	1448139-54-5	C₁₉H₂₀N₂O₃
(E)-3-(furan-3-yl)-N-(1-(2-methoxyacetyl)-1,2,3,4-tetrahydroquinolin-7-yl)acrylamide	(E)-3-(furan-3-yl)-N-(1-(2-methoxyacetyl)-1,2,3,4-tetrahydroquinolin-7-yl)acrylamide	分子量：340.4 密度：N/A 沸点：N/A 熔点：N/A	1798412-97-1	C₁₉H₂₀N₂O₄
N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)benzofuran-2-carboxamide	N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)benzofuran-2-carboxamide	分子量：311.33 密度：N/A 沸点：N/A 熔点：N/A	1796966-59-0	C₁₇H₁₇N₃O₃
1-(7,7-dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)-N-(2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)methanesulfonamide	1-(7,7-dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)-N-(2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)methanesulfonamide	分子量：376.5 密度：N/A 沸点：N/A 熔点：N/A	1797646-16-2	C₁₉H₂₄N₂O₄S
N-(5-isopentyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-7-yl)-1-methyl-1H-1,2,3-triazole-4-carboxamide	N-(5-isopentyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-7-yl)-1-methyl-1H-1,2,3-triazole-4-carboxamide	分子量：385.5 密度：N/A 沸点：N/A 熔点：N/A	1448053-07-3	C₂₀H₂₇N₅O₃
methyl (4-(N-(4-(2-(cyclopropylamino)-2-oxoethyl)phenyl)sulfamoyl)phenyl)carbamate	methyl (4-(N-(4-(2-(cyclopropylamino)-2-oxoethyl)phenyl)sulfamoyl)phenyl)carbamate	分子量：403.5 密度：N/A 沸点：N/A 熔点：N/A	1448053-96-0	C₁₉H₂₁N₃O₅S
N-cyclopropyl-2-(4-(1-methyl-1H-pyrazole-4-sulfonamido)phenyl)acetamide	N-cyclopropyl-2-(4-(1-methyl-1H-pyrazole-4-sulfonamido)phenyl)acetamide	分子量：334.4 密度：N/A 沸点：N/A 熔点：N/A	1448132-01-1	C₁₅H₁₈N₄O₃S
1-methyl-N-(4-(2-morpholino-2-oxoethyl)phenyl)-1H-1,2,3-triazole-4-carboxamide	1-methyl-N-(4-(2-morpholino-2-oxoethyl)phenyl)-1H-1,2,3-triazole-4-carboxamide	分子量：329.35 密度：N/A 沸点：N/A 熔点：N/A	1448135-91-8	C₁₆H₁₉N₅O₃
N-(4-(2-((2-methoxyethyl)amino)-2-oxoethyl)phenyl)-3-(4-(trifluoromethyl)phenyl)propanamide	N-(4-(2-((2-methoxyethyl)amino)-2-oxoethyl)phenyl)-3-(4-(trifluoromethyl)phenyl)propanamide	分子量：408.4 密度：N/A 沸点：N/A 熔点：N/A	1448071-04-2	C₂₁H₂₃F₃N₂O₃
tert-Butyl 3-((1-(3-chlorobenzyl)-1H-benzo[d]imidazol-2-yl)oxy)piperidine-1-carboxylate	tert-Butyl 3-((1-(3-chlorobenzyl)-1H-benzo[d]imidazol-2-yl)oxy)piperidine-1-carboxylate	分子量：441.9 密度：N/A 沸点：N/A 熔点：N/A	1420875-39-3	C₂₄H₂₈ClN₃O₃
5-chloro-N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)thiophene-2-carboxamide	5-chloro-N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)thiophene-2-carboxamide	分子量：311.79 密度：N/A 沸点：N/A 熔点：N/A	1797340-80-7	C₁₃H₁₄ClN₃O₂S
tert-Butyl 3-((1-(4-chlorobenzyl)-1H-benzo[d]imidazol-2-yl)oxy)piperidine-1-carboxylate	tert-Butyl 3-((1-(4-chlorobenzyl)-1H-benzo[d]imidazol-2-yl)oxy)piperidine-1-carboxylate	分子量：441.9 密度：N/A 沸点：N/A 熔点：N/A	1421002-34-7	C₂₄H₂₈ClN₃O₃
3-(dimethylamino)-N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)benzamide	3-(dimethylamino)-N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)benzamide	分子量：314.4 密度：N/A 沸点：N/A 熔点：N/A	1797086-43-1	C₁₇H₂₂N₄O₂
(1-((2-Chlorothiazol-5-yl)methyl)azetidin-3-yl)methanol	(1-((2-Chlorothiazol-5-yl)methyl)azetidin-3-yl)methanol	分子量：218.70 密度：N/A 沸点：N/A 熔点：N/A	1420875-73-5	C₈H₁₁ClN₂OS
N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)benzo[d][1,3]dioxole-5-carboxamide	N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)benzo[d][1,3]dioxole-5-carboxamide	分子量：315.32 密度：N/A 沸点：N/A 熔点：N/A	1797015-76-9	C₁₆H₁₇N₃O₄
(2-Isopropyl-2-azaspiro[4.5]decan-8-yl)methanethiol	(2-Isopropyl-2-azaspiro[4.5]decan-8-yl)methanethiol	分子量：227.41 密度：N/A 沸点：N/A 熔点：N/A	1420989-05-4	C₁₃H₂₅NS
(E)-3-(furan-3-yl)-N-(2-propionyl-1,2,3,4-tetrahydroisoquinolin-7-yl)acrylamide	(E)-3-(furan-3-yl)-N-(2-propionyl-1,2,3,4-tetrahydroisoquinolin-7-yl)acrylamide	分子量：324.4 密度：N/A 沸点：N/A 熔点：N/A	1798423-17-2	C₁₉H₂₀N₂O₃
N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)-2-(o-tolyloxy)acetamide	N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)-2-(o-tolyloxy)acetamide	分子量：315.37 密度：N/A 沸点：N/A 熔点：N/A	1797681-39-0	C₁₇H₂₁N₃O₃
3-(2-chloro-6-fluorobenzyl)tetrahydro-2H-pyran-4-ol	3-(2-chloro-6-fluorobenzyl)tetrahydro-2H-pyran-4-ol	分子量：244.69 密度：N/A 沸点：N/A 熔点：N/A	1420997-55-2	C₁₂H₁₄ClFO₂
2-(2-fluorophenoxy)-N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)acetamide	2-(2-fluorophenoxy)-N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)acetamide	分子量：319.33 密度：N/A 沸点：N/A 熔点：N/A	1797860-83-3	C₁₆H₁₈FN₃O₃
2-((difluoromethyl)thio)-N-(thiophen-3-ylmethyl)benzamide	2-((difluoromethyl)thio)-N-(thiophen-3-ylmethyl)benzamide	分子量：299.4 密度：N/A 沸点：N/A 熔点：N/A	1797241-75-8	C₁₃H₁₁F₂NOS₂
tert-Butyl 3-(3-((4-cyanopyridin-2-yl)oxy)propyl)piperidine-1-carboxylate	tert-Butyl 3-(3-((4-cyanopyridin-2-yl)oxy)propyl)piperidine-1-carboxylate	分子量：345.4 密度：N/A 沸点：N/A 熔点：N/A	1420867-97-5	C₁₉H₂₇N₃O₃
2-(2-chlorophenyl)-N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)acetamide	2-(2-chlorophenyl)-N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)acetamide	分子量：319.78 密度：N/A 沸点：N/A 熔点：N/A	1798029-08-9	C₁₆H₁₈ClN₃O₂
N-(thiophen-3-ylmethyl)-3-(4-(trifluoromethyl)phenyl)propanamide	N-(thiophen-3-ylmethyl)-3-(4-(trifluoromethyl)phenyl)propanamide	分子量：313.3 密度：N/A 沸点：N/A 熔点：N/A	1798027-32-3	C₁₅H₁₄F₃NOS
(E)-3-(furan-3-yl)-N-(thiophen-3-ylmethyl)acrylamide	(E)-3-(furan-3-yl)-N-(thiophen-3-ylmethyl)acrylamide	分子量：233.29 密度：N/A 沸点：N/A 熔点：N/A	1798422-99-7	C₁₂H₁₁NO₂S
5-(furan-2-yl)-N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)isoxazole-3-carboxamide	5-(furan-2-yl)-N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)isoxazole-3-carboxamide	分子量：328.32 密度：N/A 沸点：N/A 熔点：N/A	1797681-45-8	C₁₆H₁₆N₄O₄
Methyl 4-(((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)carbamoyl)benzoate	Methyl 4-(((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)carbamoyl)benzoate	分子量：329.35 密度：N/A 沸点：N/A 熔点：N/A	1798029-14-7	C₁₇H₁₉N₃O₄
6-Methoxy-N-{[1-(thiophen-2-YL)cyclopentyl]methyl}-1H-indole-2-carboxamide	6-Methoxy-N-{[1-(thiophen-2-YL)cyclopentyl]methyl}-1H-indole-2-carboxamide	分子量：354.5 密度：N/A 沸点：N/A 熔点：N/A	1796960-00-3	C₂₀H₂₂N₂O₂S
2-(3,5-dimethylisoxazol-4-yl)-N-((1-(thiophen-2-yl)cyclopentyl)methyl)acetamide	2-(3,5-dimethylisoxazol-4-yl)-N-((1-(thiophen-2-yl)cyclopentyl)methyl)acetamide	分子量：318.4 密度：N/A 沸点：N/A 熔点：N/A	1797971-16-4	C₁₇H₂₂N₂O₂S
2-((difluoromethyl)sulfonyl)-N-((1-(thiophen-2-yl)cyclopentyl)methyl)benzamide	2-((difluoromethyl)sulfonyl)-N-((1-(thiophen-2-yl)cyclopentyl)methyl)benzamide	分子量：399.5 密度：N/A 沸点：N/A 熔点：N/A	1797082-11-1	C₁₈H₁₉F₂NO₃S₂
3,5-dimethoxy-N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)benzamide	3,5-dimethoxy-N-((1-methyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazol-3-yl)methyl)benzamide	分子量：331.4 密度：N/A 沸点：N/A 熔点：N/A	1797086-51-1	C₁₇H₂₁N₃O₄
1-methyl-N-((1-(thiophen-2-yl)cyclopentyl)methyl)-1H-1,2,3-triazole-4-carboxamide	1-methyl-N-((1-(thiophen-2-yl)cyclopentyl)methyl)-1H-1,2,3-triazole-4-carboxamide	分子量：290.39 密度：N/A 沸点：N/A 熔点：N/A	1797295-74-9	C₁₄H₁₈N₄OS