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-chloro-2-methoxy-N-(1-(3-methyl-[1,2,4]triazolo[4,3-a]pyrazin-8-yl)piperidin-4-yl)benzenesulfonamide	5-chloro-2-methoxy-N-(1-(3-methyl-[1,2,4]triazolo[4,3-a]pyrazin-8-yl)piperidin-4-yl)benzenesulfonamide	分子量：436.9 密度：N/A 沸点：N/A 熔点：N/A	2034516-75-9	C₁₈H₂₁ClN₆O₃S
3-(1-(2-(2-fluorophenoxy)acetyl)piperidin-4-yl)pyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione	3-(1-(2-(2-fluorophenoxy)acetyl)piperidin-4-yl)pyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione	分子量：398.4 密度：N/A 沸点：N/A 熔点：N/A	2034425-61-9	C₂₀H₁₉FN₄O₄
N-(4,4-difluorocyclohexyl)pivalamide	N-(4,4-difluorocyclohexyl)pivalamide	分子量：219.27 密度：N/A 沸点：N/A 熔点：N/A	1865408-34-9	C₁₁H₁₉F₂NO
Dimethyl 8-chloroquinoline-2,4-dicarboxylate	Dimethyl 8-chloroquinoline-2,4-dicarboxylate	分子量：279.67 密度：N/A 沸点：N/A 熔点：N/A	1799763-10-2	C₁₃H₁₀ClNO₄
2,4-Dimethyl 7-fluoroquinoline-2,4-dicarboxylate	2,4-Dimethyl 7-fluoroquinoline-2,4-dicarboxylate	分子量：263.22 密度：N/A 沸点：N/A 熔点：N/A	1799762-96-1	C₁₃H₁₀FNO₄
N-(4,4-difluorocyclohexyl)thiophene-2-carboxamide	N-(4,4-difluorocyclohexyl)thiophene-2-carboxamide	分子量：245.29 密度：N/A 沸点：N/A 熔点：N/A	1851963-94-4	C₁₁H₁₃F₂NOS
2-(2-chlorophenyl)-N-(4,4-difluorocyclohexyl)acetamide	2-(2-chlorophenyl)-N-(4,4-difluorocyclohexyl)acetamide	分子量：287.73 密度：N/A 沸点：N/A 熔点：N/A	2034461-62-4	C₁₄H₁₆ClF₂NO
N-(4,4-difluorocyclohexyl)-1H-imidazole-5-carboxamide	N-(4,4-difluorocyclohexyl)-1H-imidazole-5-carboxamide	分子量：229.23 密度：N/A 沸点：N/A 熔点：N/A	2034422-72-3	C₁₀H₁₃F₂N₃O
2-(4-oxoquinazolin-3(4H)-yl)-N-((7-(trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyridin-3-yl)methyl)acetamide	2-(4-oxoquinazolin-3(4H)-yl)-N-((7-(trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyridin-3-yl)methyl)acetamide	分子量：406.4 密度：N/A 沸点：N/A 熔点：N/A	2034520-20-0	C₁₈H₁₇F₃N₆O₂
N-((7-(trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyridin-3-yl)methyl)furan-2-carboxamide	N-((7-(trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyridin-3-yl)methyl)furan-2-carboxamide	分子量：314.26 密度：N/A 沸点：N/A 熔点：N/A	2034520-25-5	C₁₃H₁₃F₃N₄O₂
Methyl 2-carbamoyl-7-methoxyquinoline-4-carboxylate	Methyl 2-carbamoyl-7-methoxyquinoline-4-carboxylate	分子量：260.24 密度：N/A 沸点：N/A 熔点：N/A	1799763-08-8	C₁₃H₁₂N₂O₄
2-methyl-N-((3-(1-methyl-1H-pyrazol-4-yl)-1,2,4-oxadiazol-5-yl)methyl)thiazole-4-carboxamide	2-methyl-N-((3-(1-methyl-1H-pyrazol-4-yl)-1,2,4-oxadiazol-5-yl)methyl)thiazole-4-carboxamide	分子量：304.33 密度：N/A 沸点：N/A 熔点：N/A	2034558-92-2	C₁₂H₁₂N₆O₂S
2-(4-(isopropylsulfonyl)phenyl)-N-((3-(1-methyl-1H-pyrazol-4-yl)-1,2,4-oxadiazol-5-yl)methyl)acetamide	2-(4-(isopropylsulfonyl)phenyl)-N-((3-(1-methyl-1H-pyrazol-4-yl)-1,2,4-oxadiazol-5-yl)methyl)acetamide	分子量：403.5 密度：N/A 沸点：N/A 熔点：N/A	2034384-54-6	C₁₈H₂₁N₅O₄S
N-((3-(1-methyl-1H-pyrazol-4-yl)-1,2,4-oxadiazol-5-yl)methyl)-6-(trifluoromethyl)nicotinamide	N-((3-(1-methyl-1H-pyrazol-4-yl)-1,2,4-oxadiazol-5-yl)methyl)-6-(trifluoromethyl)nicotinamide	分子量：352.27 密度：N/A 沸点：N/A 熔点：N/A	2034560-01-3	C₁₄H₁₁F₃N₆O₂
2-(2,4-dichlorophenoxy)-N-((3-(1-methyl-1H-pyrazol-4-yl)-1,2,4-oxadiazol-5-yl)methyl)propanamide	2-(2,4-dichlorophenoxy)-N-((3-(1-methyl-1H-pyrazol-4-yl)-1,2,4-oxadiazol-5-yl)methyl)propanamide	分子量：396.2 密度：N/A 沸点：N/A 熔点：N/A	2034385-44-7	C₁₆H₁₅Cl₂N₅O₃
N-((3-(1-ethyl-1H-pyrazol-4-yl)-1,2,4-oxadiazol-5-yl)methyl)-4-methyl-2-(1H-pyrrol-1-yl)thiazole-5-carboxamide	N-((3-(1-ethyl-1H-pyrazol-4-yl)-1,2,4-oxadiazol-5-yl)methyl)-4-methyl-2-(1H-pyrrol-1-yl)thiazole-5-carboxamide	分子量：383.4 密度：N/A 沸点：N/A 熔点：N/A	2034386-18-8	C₁₇H₁₇N₇O₂S
N-(1-(1,1-dioxidotetrahydrothiophen-3-yl)piperidin-4-yl)thiophene-3-carboxamide	N-(1-(1,1-dioxidotetrahydrothiophen-3-yl)piperidin-4-yl)thiophene-3-carboxamide	分子量：328.5 密度：N/A 沸点：N/A 熔点：N/A	2034335-42-5	C₁₄H₂₀N₂O₃S₂
2-(Aminocarbonyl)-6-methyl-4-quinolinecarboxylic acid	2-(Aminocarbonyl)-6-methyl-4-quinolinecarboxylic acid	分子量：230.22 密度：N/A 沸点：N/A 熔点：N/A	1799763-05-5	C₁₂H₁₀N₂O₃
2-[(methylamino)sulfonyl]-4-Quinolinecarboxylic acid	2-[(methylamino)sulfonyl]-4-Quinolinecarboxylic acid	分子量：266.28 密度：N/A 沸点：N/A 熔点：N/A	1799763-52-2	C₁₁H₁₀N₂O₄S
N-((1-(pyridin-4-yl)-1H-1,2,3-triazol-4-yl)methyl)pyrazine-2-carboxamide	N-((1-(pyridin-4-yl)-1H-1,2,3-triazol-4-yl)methyl)pyrazine-2-carboxamide	分子量：281.27 密度：N/A 沸点：N/A 熔点：N/A	2034311-20-9	C₁₃H₁₁N₇O
3-fluoro-4-methoxy-N-((1-(pyridin-4-yl)-1H-1,2,3-triazol-4-yl)methyl)benzamide	3-fluoro-4-methoxy-N-((1-(pyridin-4-yl)-1H-1,2,3-triazol-4-yl)methyl)benzamide	分子量：327.31 密度：N/A 沸点：N/A 熔点：N/A	2034227-91-1	C₁₆H₁₄FN₅O₂
N-((5-(1-methyl-1H-pyrazol-4-yl)pyridin-3-yl)methyl)thiophene-2-sulfonamide	N-((5-(1-methyl-1H-pyrazol-4-yl)pyridin-3-yl)methyl)thiophene-2-sulfonamide	分子量：334.4 密度：N/A 沸点：N/A 熔点：N/A	2034225-17-5	C₁₄H₁₄N₄O₂S₂
2,6-dichloro-N-((5-(1-methyl-1H-pyrazol-4-yl)pyridin-3-yl)methyl)benzenesulfonamide	2,6-dichloro-N-((5-(1-methyl-1H-pyrazol-4-yl)pyridin-3-yl)methyl)benzenesulfonamide	分子量：397.3 密度：N/A 沸点：N/A 熔点：N/A	2034225-37-9	C₁₆H₁₄Cl₂N₄O₂S
1-((5-(1-methyl-1H-pyrazol-5-yl)pyridin-3-yl)methyl)-3-(4,5,6,7-tetrahydrobenzo[d]thiazol-2-yl)urea	1-((5-(1-methyl-1H-pyrazol-5-yl)pyridin-3-yl)methyl)-3-(4,5,6,7-tetrahydrobenzo[d]thiazol-2-yl)urea	分子量：368.5 密度：N/A 沸点：N/A 熔点：N/A	2034226-43-0	C₁₈H₂₀N₆OS
2-chloro-N-(2-(2,4-dioxooxazolidin-3-yl)ethyl)-4-fluorobenzamide	2-chloro-N-(2-(2,4-dioxooxazolidin-3-yl)ethyl)-4-fluorobenzamide	分子量：300.67 密度：N/A 沸点：N/A 熔点：N/A	2034338-91-3	C₁₂H₁₀ClFN₂O₄
Methyl 4-((2-(2,4-dioxooxazolidin-3-yl)ethyl)carbamoyl)benzoate	Methyl 4-((2-(2,4-dioxooxazolidin-3-yl)ethyl)carbamoyl)benzoate	分子量：306.27 密度：N/A 沸点：N/A 熔点：N/A	2034383-84-9	C₁₄H₁₄N₂O₆
(3-(Benzyloxy)phenyl)(3-(cyclopropylmethoxy)pyrrolidin-1-yl)methanone	(3-(Benzyloxy)phenyl)(3-(cyclopropylmethoxy)pyrrolidin-1-yl)methanone	分子量：351.4 密度：N/A 沸点：N/A 熔点：N/A	2034520-16-4	C₂₂H₂₅NO₃
1-(3-(Cyclopropylmethoxy)pyrrolidin-1-yl)-2-(2-methoxyphenyl)ethanone	1-(3-(Cyclopropylmethoxy)pyrrolidin-1-yl)-2-(2-methoxyphenyl)ethanone	分子量：289.4 密度：N/A 沸点：N/A 熔点：N/A	2034343-43-4	C₁₇H₂₃NO₃
3-(cyclopropylmethoxy)-N-(pyridin-3-ylmethyl)pyrrolidine-1-carboxamide	3-(cyclopropylmethoxy)-N-(pyridin-3-ylmethyl)pyrrolidine-1-carboxamide	分子量：275.35 密度：N/A 沸点：N/A 熔点：N/A	2034387-41-0	C₁₅H₂₁N₃O₂
3-(cyclopropylmethoxy)-N-(pyridin-3-yl)pyrrolidine-1-carboxamide	3-(cyclopropylmethoxy)-N-(pyridin-3-yl)pyrrolidine-1-carboxamide	分子量：261.32 密度：N/A 沸点：N/A 熔点：N/A	2034531-61-6	C₁₄H₁₉N₃O₂
N-((3-(furan-2-yl)pyrazin-2-yl)methyl)-6-isopropoxynicotinamide	N-((3-(furan-2-yl)pyrazin-2-yl)methyl)-6-isopropoxynicotinamide	分子量：338.4 密度：N/A 沸点：N/A 熔点：N/A	2034569-86-1	C₁₈H₁₈N₄O₃
N-((3-(furan-2-yl)pyrazin-2-yl)methyl)-3-(1H-pyrazol-1-yl)benzamide	N-((3-(furan-2-yl)pyrazin-2-yl)methyl)-3-(1H-pyrazol-1-yl)benzamide	分子量：345.4 密度：N/A 沸点：N/A 熔点：N/A	2034533-15-6	C₁₉H₁₅N₅O₂
N-(2-(benzofuran-2-yl)-2-(dimethylamino)ethyl)-5-bromonicotinamide	N-(2-(benzofuran-2-yl)-2-(dimethylamino)ethyl)-5-bromonicotinamide	分子量：388.3 密度：N/A 沸点：N/A 熔点：N/A	2034562-61-1	C₁₈H₁₈BrN₃O₂
N-(2-(benzofuran-2-yl)-2-(dimethylamino)ethyl)-2-oxoimidazolidine-1-carboxamide	N-(2-(benzofuran-2-yl)-2-(dimethylamino)ethyl)-2-oxoimidazolidine-1-carboxamide	分子量：316.35 密度：N/A 沸点：N/A 熔点：N/A	2034301-57-8	C₁₆H₂₀N₄O₃
5-(Thiophen-2-yl)oxazole-2-carbonitrile	5-(Thiophen-2-yl)oxazole-2-carbonitrile	分子量：176.20 密度：N/A 沸点：N/A 熔点：N/A	2034455-46-2	C₈H₄N₂OS
Tert-butyl 3,3-difluoro-8-azabicyclo[3.2.1]octane-8-carboxylate	Tert-butyl 3,3-difluoro-8-azabicyclo[3.2.1]octane-8-carboxylate	分子量：247.28 密度：N/A 沸点：N/A 熔点：N/A	1404196-68-4	C₁₂H₁₉F₂NO₂
1-Methyl-5-nitro-1H-indazole-6-carboxylic acid	1-Methyl-5-nitro-1H-indazole-6-carboxylic acid	分子量：221.17 密度：N/A 沸点：N/A 熔点：N/A	1257303-32-4	C₉H₇N₃O₄
tert-butyl 4-[2-(hydroxymethyl)-4-nitrophenyl]-3,6-dihydro-2H-pyridine-1-carboxylate	tert-butyl 4-[2-(hydroxymethyl)-4-nitrophenyl]-3,6-dihydro-2H-pyridine-1-carboxylate	分子量：334.4 密度：N/A 沸点：N/A 熔点：N/A	1799563-93-1	C₁₇H₂₂N₂O₅
Tert-butyl 4-[2-(chloromethyl)-4-nitrophenyl]piperazine-1-carboxylate	Tert-butyl 4-[2-(chloromethyl)-4-nitrophenyl]piperazine-1-carboxylate	分子量：355.81 密度：N/A 沸点：N/A 熔点：N/A	1799563-37-3	C₁₆H₂₂ClN₃O₄
2-[4-(benzylamino)-1H-pyrazol-1-yl]ethan-1-ol	2-[4-(benzylamino)-1H-pyrazol-1-yl]ethan-1-ol	分子量：217.27 密度：N/A 沸点：N/A 熔点：N/A	1710414-16-6	C₁₂H₁₅N₃O
2-[4-({[4-(dimethylamino)phenyl]methyl}amino)-1H-pyrazol-1-yl]ethan-1-ol	2-[4-({[4-(dimethylamino)phenyl]methyl}amino)-1H-pyrazol-1-yl]ethan-1-ol	分子量：260.33 密度：N/A 沸点：N/A 熔点：N/A	1856021-52-7	C₁₄H₂₀N₄O
2-(4-{[(4-fluorophenyl)methyl]amino}-1H-pyrazol-1-yl)ethan-1-ol	2-(4-{[(4-fluorophenyl)methyl]amino}-1H-pyrazol-1-yl)ethan-1-ol	分子量：235.26 密度：N/A 沸点：N/A 熔点：N/A	1856032-24-0	C₁₂H₁₄FN₃O
2-(4-{[(2-methoxyphenyl)methyl]amino}-1H-pyrazol-1-yl)ethan-1-ol	2-(4-{[(2-methoxyphenyl)methyl]amino}-1H-pyrazol-1-yl)ethan-1-ol	分子量：247.29 密度：N/A 沸点：N/A 熔点：N/A	1856040-38-4	C₁₃H₁₇N₃O₂
2-(4-{[(furan-2-yl)methyl]amino}-1H-pyrazol-1-yl)ethan-1-ol	2-(4-{[(furan-2-yl)methyl]amino}-1H-pyrazol-1-yl)ethan-1-ol	分子量：207.23 密度：N/A 沸点：N/A 熔点：N/A	1601898-09-2	C₁₀H₁₃N₃O₂
2-bromo-2-(1-oxo-3H-2-benzofuran-5-yl)acetaldehyde	2-bromo-2-(1-oxo-3H-2-benzofuran-5-yl)acetaldehyde	分子量：255.06 密度：N/A 沸点：N/A 熔点：N/A	1799842-55-9	C₁₀H₇BrO₃
2-Cyano-3-(difluoromethyl)-6-iodoisonicotinamide	2-Cyano-3-(difluoromethyl)-6-iodoisonicotinamide	分子量：323.04 密度：N/A 沸点：N/A 熔点：N/A	1804380-72-0	C₈H₄F₂IN₃O
1-(Azetidin-3-yl)prop-2-yn-1-one	1-(Azetidin-3-yl)prop-2-yn-1-one	分子量：109.13 密度：N/A 沸点：N/A 熔点：N/A	1603024-03-8	C₆H₇NO
1-(Azetidin-3-yl)-2-propoxyethan-1-one	1-(Azetidin-3-yl)-2-propoxyethan-1-one	分子量：157.21 密度：N/A 沸点：N/A 熔点：N/A	1599715-68-0	C₈H₁₅NO₂
4-Bromo-5-iodo-2-propan-2-yltriazole	4-Bromo-5-iodo-2-propan-2-yltriazole	分子量：315.94 密度：N/A 沸点：N/A 熔点：N/A	1384848-49-0	C₅H₇BrIN₃
1-(4-Aminocyclopent-2-en-1-yl)ethan-1-one	1-(4-Aminocyclopent-2-en-1-yl)ethan-1-one	分子量：125.17 密度：N/A 沸点：N/A 熔点：N/A	1598552-62-5	C₇H₁₁NO