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
1-Cyclobutyl-3-piperazin-1-ylpropan-1-ol	1-Cyclobutyl-3-piperazin-1-ylpropan-1-ol	分子量：198.31 密度：N/A 沸点：N/A 熔点：N/A	1799937-85-1	C₁₁H₂₂N₂O
Methyl 2-amino-3-[2-(trifluoromethyl)cyclopropyl]propanoate	Methyl 2-amino-3-[2-(trifluoromethyl)cyclopropyl]propanoate	分子量：211.18 密度：N/A 沸点：N/A 熔点：N/A	1910804-60-2	C₈H₁₂F₃NO₂
Tert-butyl 2-amino-2-[2-(trifluoromethyl)cyclopropyl]acetate	Tert-butyl 2-amino-2-[2-(trifluoromethyl)cyclopropyl]acetate	分子量：239.23 密度：N/A 沸点：N/A 熔点：N/A	1922716-91-3	C₁₀H₁₆F₃NO₂
Methyl 2-amino-2-[2-(trifluoromethyl)cyclopropyl]acetate	Methyl 2-amino-2-[2-(trifluoromethyl)cyclopropyl]acetate	分子量：197.15 密度：N/A 沸点：N/A 熔点：N/A	1922860-51-2	C₇H₁₀F₃NO₂
Tert-butyl 4-(trifluoromethyl)-2-azabicyclo[2.1.1]hexane-1-carboxylate	Tert-butyl 4-(trifluoromethyl)-2-azabicyclo[2.1.1]hexane-1-carboxylate	分子量：251.25 密度：N/A 沸点：N/A 熔点：N/A	1983346-85-5	C₁₁H₁₆F₃NO₂
Methyl 4-(trifluoromethyl)-2-azabicyclo[2.1.1]hexane-1-carboxylate	Methyl 4-(trifluoromethyl)-2-azabicyclo[2.1.1]hexane-1-carboxylate	分子量：209.17 密度：N/A 沸点：N/A 熔点：N/A	1934459-04-7	C₈H₁₀F₃NO₂
tert-butyl (2S)-2-amino-3-(oxan-4-yl)propanoate	tert-butyl (2S)-2-amino-3-(oxan-4-yl)propanoate	分子量：229.32 密度：N/A 沸点：N/A 熔点：N/A	1983347-00-7	C₁₂H₂₃NO₃
tert-butyl (1S,5R)-2-azabicyclo[3.1.0]hexane-1-carboxylate	tert-butyl (1S,5R)-2-azabicyclo[3.1.0]hexane-1-carboxylate	分子量：183.25 密度：N/A 沸点：N/A 熔点：N/A	134732-53-9	C₁₀H₁₇NO₂
Tert-butyl 4-amino-4-(3,4-dichlorophenyl)butanoate	Tert-butyl 4-amino-4-(3,4-dichlorophenyl)butanoate	分子量：304.2 密度：N/A 沸点：N/A 熔点：N/A	1984094-41-8	C₁₄H₁₉Cl₂NO₂
2-[3-(3,3,3-Trifluoropropylsulfonyl)propyl]pyrrolidine	2-[3-(3,3,3-Trifluoropropylsulfonyl)propyl]pyrrolidine	分子量：273.32 密度：N/A 沸点：N/A 熔点：N/A	1670273-44-5	C₁₀H₁₈F₃NO₂S
Tert-butyl 2-amino-3-[4-(methylsulfanyl)phenyl]propanoate	Tert-butyl 2-amino-3-[4-(methylsulfanyl)phenyl]propanoate	分子量：267.39 密度：N/A 沸点：N/A 熔点：N/A	1922860-30-7	C₁₄H₂₁NO₂S
tert-butyl 1-amino-2,3-dihydro-1H-indene-1-carboxylate	tert-butyl 1-amino-2,3-dihydro-1H-indene-1-carboxylate	分子量：233.31 密度：N/A 沸点：N/A 熔点：N/A	1993287-90-3	C₁₄H₁₉NO₂
tert-butyl 2-amino-3-{1H-pyrrolo[2,3-b]pyridin-1-yl}propanoate	tert-butyl 2-amino-3-{1H-pyrrolo[2,3-b]pyridin-1-yl}propanoate	分子量：261.32 密度：N/A 沸点：N/A 熔点：N/A	1922860-36-3	C₁₄H₁₉N₃O₂
Tert-butyl 2-amino-2-methyl-4-phenylbutanoate	Tert-butyl 2-amino-2-methyl-4-phenylbutanoate	分子量：249.35 密度：N/A 沸点：N/A 熔点：N/A	1987428-25-0	C₁₅H₂₃NO₂
rac-tert-butyl (1R,3R,5R)-2-azabicyclo[3.1.0]hexane-3-carboxylate	rac-tert-butyl (1R,3R,5R)-2-azabicyclo[3.1.0]hexane-3-carboxylate	分子量：183.25 密度：N/A 沸点：N/A 熔点：N/A	1931961-80-6	C₁₀H₁₇NO₂
tert-butyl 2-amino-2-(trimethyl-1H-pyrazol-4-yl)acetate	tert-butyl 2-amino-2-(trimethyl-1H-pyrazol-4-yl)acetate	分子量：239.31 密度：N/A 沸点：N/A 熔点：N/A	1922718-25-9	C₁₂H₂₁N₃O₂
Tert-butyl 3-amino-2-[(2-methylphenyl)methyl]propanoate	Tert-butyl 3-amino-2-[(2-methylphenyl)methyl]propanoate	分子量：249.35 密度：N/A 沸点：N/A 熔点：N/A	1987428-39-6	C₁₅H₂₃NO₂
Tert-butyl 4-(2-ethoxyethyl)piperazine-1-carboxylate	Tert-butyl 4-(2-ethoxyethyl)piperazine-1-carboxylate	分子量：258.36 密度：N/A 沸点：N/A 熔点：N/A	2172786-48-8	C₁₃H₂₆N₂O₃
tert-Butyl ((1s,3s)-3-((tert-butyldimethylsilyl)oxy)cyclobutyl)(methyl)carbamate	tert-Butyl ((1s,3s)-3-((tert-butyldimethylsilyl)oxy)cyclobutyl)(methyl)carbamate	分子量：315.52 密度：N/A 沸点：N/A 熔点：N/A	1428776-35-5	C₁₆H₃₃NO₃Si
2-(5-Amino-7-chloro-2-cyclobutylbenzo[d]oxazol-6-yl)propan-2-ol	2-(5-Amino-7-chloro-2-cyclobutylbenzo[d]oxazol-6-yl)propan-2-ol	分子量：280.75 密度：N/A 沸点：N/A 熔点：N/A	2195366-12-0	C₁₄H₁₇ClN₂O₂
1-(6-cyclopropylpyridazin-3-yl)-N-[(1H-indol-3-yl)methyl]piperidine-3-carboxamide	1-(6-cyclopropylpyridazin-3-yl)-N-[(1H-indol-3-yl)methyl]piperidine-3-carboxamide	分子量：375.5 密度：N/A 沸点：N/A 熔点：N/A	2097919-68-9	C₂₂H₂₅N₅O
2-Fluoro-4-methyl-1-(2-nitroethenyl)benzene	2-Fluoro-4-methyl-1-(2-nitroethenyl)benzene	分子量：181.16 密度：N/A 沸点：N/A 熔点：N/A	2169667-96-1	C₉H₈FNO₂
2-(3-(tert-Butoxycarbonyl)azetidin-1-yl)acetic acid	2-(3-(tert-Butoxycarbonyl)azetidin-1-yl)acetic acid	分子量：215.25 密度：N/A 沸点：N/A 熔点：N/A	1824200-79-4	C₁₀H₁₇NO₄
Ethyl 5-(6-methoxy-2-naphthyl)isoxazole-3-carboxylate	Ethyl 5-(6-methoxy-2-naphthyl)isoxazole-3-carboxylate	分子量：297.30 密度：N/A 沸点：N/A 熔点：N/A	1257629-96-1	C₁₇H₁₅NO₄
Ethyl 1-(6-tert-butylpyrimidin-4-yl)piperidine-4-carboxylate	Ethyl 1-(6-tert-butylpyrimidin-4-yl)piperidine-4-carboxylate	分子量：291.39 密度：N/A 沸点：N/A 熔点：N/A	2098017-26-4	C₁₆H₂₅N₃O₂
4-(4-Benzylpiperazin-1-yl)-6-(difluoromethyl)pyrimidine	4-(4-Benzylpiperazin-1-yl)-6-(difluoromethyl)pyrimidine	分子量：304.34 密度：N/A 沸点：N/A 熔点：N/A	2098017-36-6	C₁₆H₁₈F₂N₄
tert-butyl N-(2-{[6-(difluoromethyl)pyrimidin-4-yl]amino}ethyl)carbamate	tert-butyl N-(2-{[6-(difluoromethyl)pyrimidin-4-yl]amino}ethyl)carbamate	分子量：288.29 密度：N/A 沸点：N/A 熔点：N/A	2098017-50-4	C₁₂H₁₈F₂N₄O₂
Ethyl 1-[6-(difluoromethyl)pyrimidin-4-yl]piperidine-4-carboxylate	Ethyl 1-[6-(difluoromethyl)pyrimidin-4-yl]piperidine-4-carboxylate	分子量：285.29 密度：N/A 沸点：N/A 熔点：N/A	2098108-43-9	C₁₃H₁₇F₂N₃O₂
tert-butyl N-(2-{[6-(trifluoromethyl)pyrimidin-4-yl]amino}ethyl)carbamate	tert-butyl N-(2-{[6-(trifluoromethyl)pyrimidin-4-yl]amino}ethyl)carbamate	分子量：306.28 密度：N/A 沸点：N/A 熔点：N/A	2002845-90-9	C₁₂H₁₇F₃N₄O₂
Methyl 1-[6-(trifluoromethyl)pyrimidin-4-yl]piperidine-4-carboxylate	Methyl 1-[6-(trifluoromethyl)pyrimidin-4-yl]piperidine-4-carboxylate	分子量：289.25 密度：N/A 沸点：N/A 熔点：N/A	2098004-65-8	C₁₂H₁₄F₃N₃O₂
Ethyl 4-{[6-(fluoromethyl)pyrimidin-4-yl]amino}piperidine-1-carboxylate	Ethyl 4-{[6-(fluoromethyl)pyrimidin-4-yl]amino}piperidine-1-carboxylate	分子量：282.31 密度：N/A 沸点：N/A 熔点：N/A	2098141-17-2	C₁₃H₁₉FN₄O₂
Ethyl 1-[6-(fluoromethyl)pyrimidin-4-yl]piperidine-3-carboxylate	Ethyl 1-[6-(fluoromethyl)pyrimidin-4-yl]piperidine-3-carboxylate	分子量：267.30 密度：N/A 沸点：N/A 熔点：N/A	2098108-93-9	C₁₃H₁₈FN₃O₂
Ethyl 4-{[6-(2-methoxyethyl)pyrimidin-4-yl]amino}piperidine-1-carboxylate	Ethyl 4-{[6-(2-methoxyethyl)pyrimidin-4-yl]amino}piperidine-1-carboxylate	分子量：308.38 密度：N/A 沸点：N/A 熔点：N/A	2098113-72-3	C₁₅H₂₄N₄O₃
tert-butyl N-(3-{[6-(cyclopent-3-en-1-yl)pyrimidin-4-yl]amino}propyl)carbamate	tert-butyl N-(3-{[6-(cyclopent-3-en-1-yl)pyrimidin-4-yl]amino}propyl)carbamate	分子量：318.4 密度：N/A 沸点：N/A 熔点：N/A	2098016-85-2	C₁₇H₂₆N₄O₂
tert-butyl N-(2-{[6-(cyclopent-3-en-1-yl)pyrimidin-4-yl]amino}ethyl)carbamate	tert-butyl N-(2-{[6-(cyclopent-3-en-1-yl)pyrimidin-4-yl]amino}ethyl)carbamate	分子量：304.39 密度：N/A 沸点：N/A 熔点：N/A	2098141-57-0	C₁₆H₂₄N₄O₂
Ethyl 1-[6-(oxan-4-yl)pyrimidin-4-yl]piperidine-3-carboxylate	Ethyl 1-[6-(oxan-4-yl)pyrimidin-4-yl]piperidine-3-carboxylate	分子量：319.4 密度：N/A 沸点：N/A 熔点：N/A	2098063-53-5	C₁₇H₂₅N₃O₃
Methyl 1-[6-(oxan-4-yl)pyrimidin-4-yl]piperidine-4-carboxylate	Methyl 1-[6-(oxan-4-yl)pyrimidin-4-yl]piperidine-4-carboxylate	分子量：305.37 密度：N/A 沸点：N/A 熔点：N/A	2098063-60-4	C₁₆H₂₃N₃O₃
Tert-butyl 2-{[6-(oxan-4-yl)pyrimidin-4-yl]amino}acetate	Tert-butyl 2-{[6-(oxan-4-yl)pyrimidin-4-yl]amino}acetate	分子量：293.36 密度：N/A 沸点：N/A 熔点：N/A	2098110-18-8	C₁₅H₂₃N₃O₃
tert-butyl N-({1-[(1,2-dimethyl-1H-imidazol-4-yl)sulfonyl]piperidin-2-yl}methyl)carbamate	tert-butyl N-({1-[(1,2-dimethyl-1H-imidazol-4-yl)sulfonyl]piperidin-2-yl}methyl)carbamate	分子量：372.5 密度：N/A 沸点：N/A 熔点：N/A	2098063-92-2	C₁₆H₂₈N₄O₄S
tert-butyl N-{[1-(3-fluorobenzenesulfonyl)piperidin-2-yl]methyl}carbamate	tert-butyl N-{[1-(3-fluorobenzenesulfonyl)piperidin-2-yl]methyl}carbamate	分子量：372.5 密度：N/A 沸点：N/A 熔点：N/A	2098017-40-2	C₁₇H₂₅FN₂O₄S
3-chloro-N-[1-(4-phenylpiperazin-1-yl)-1-(thiophen-2-yl)propan-2-yl]benzamide	3-chloro-N-[1-(4-phenylpiperazin-1-yl)-1-(thiophen-2-yl)propan-2-yl]benzamide	分子量：440.0 密度：N/A 沸点：N/A 熔点：N/A	906241-82-5	C₂₄H₂₆ClN₃OS
4-(4-methyl-1H-pyrazol-1-yl)oxolan-3-ol	4-(4-methyl-1H-pyrazol-1-yl)oxolan-3-ol	分子量：168.19 密度：N/A 沸点：N/A 熔点：N/A	1862429-31-9	C₈H₁₂N₂O₂
Tert-butyl 4-{pyrazolo[1,5-a]pyridine-2-carbonyl}piperazine-1-carboxylate	Tert-butyl 4-{pyrazolo[1,5-a]pyridine-2-carbonyl}piperazine-1-carboxylate	分子量：330.4 密度：N/A 沸点：N/A 熔点：N/A	2097937-43-2	C₁₇H₂₂N₄O₃
1-[4-(4-fluorophenyl)-1,3-thiazol-2-yl]-5-methyl-1H-pyrazol-3-amine	1-[4-(4-fluorophenyl)-1,3-thiazol-2-yl]-5-methyl-1H-pyrazol-3-amine	分子量：274.32 密度：N/A 沸点：N/A 熔点：N/A	2097935-96-9	C₁₃H₁₁FN₄S
2-({3-[2-(4-chlorophenyl)ethyl]-4-oxo-3H,4H-thieno[3,2-d]pyrimidin-2-yl}sulfanyl)-N-[(2-chlorophenyl)methyl]acetamide	2-({3-[2-(4-chlorophenyl)ethyl]-4-oxo-3H,4H-thieno[3,2-d]pyrimidin-2-yl}sulfanyl)-N-[(2-chlorophenyl)methyl]acetamide	分子量：504.5 密度：N/A 沸点：N/A 熔点：N/A	2097937-81-8	C₂₃H₁₉Cl₂N₃O₂S₂
N-(5-chloro-2,4-dimethoxyphenyl)-2-({3-[2-(4-chlorophenyl)ethyl]-4-oxo-3H,4H-thieno[3,2-d]pyrimidin-2-yl}sulfanyl)acetamide	N-(5-chloro-2,4-dimethoxyphenyl)-2-({3-[2-(4-chlorophenyl)ethyl]-4-oxo-3H,4H-thieno[3,2-d]pyrimidin-2-yl}sulfanyl)acetamide	分子量：550.5 密度：N/A 沸点：N/A 熔点：N/A	2097937-63-6	C₂₄H₂₁Cl₂N₃O₄S₂
N-(5-chloro-2-methoxyphenyl)-2-({3-[2-(4-chlorophenyl)ethyl]-4-oxo-3H,4H-thieno[3,2-d]pyrimidin-2-yl}sulfanyl)acetamide	N-(5-chloro-2-methoxyphenyl)-2-({3-[2-(4-chlorophenyl)ethyl]-4-oxo-3H,4H-thieno[3,2-d]pyrimidin-2-yl}sulfanyl)acetamide	分子量：520.5 密度：N/A 沸点：N/A 熔点：N/A	2097937-83-0	C₂₃H₁₉Cl₂N₃O₃S₂
N,N-dimethyl-4-{[5-(trifluoromethyl)pyridin-2-yl]oxy}-[1,4'-bipiperidine]-1'-sulfonamide	N,N-dimethyl-4-{[5-(trifluoromethyl)pyridin-2-yl]oxy}-[1,4'-bipiperidine]-1'-sulfonamide	分子量：436.5 密度：N/A 沸点：N/A 熔点：N/A	2097938-39-9	C₁₈H₂₇F₃N₄O₃S
1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-4-[1-(1H-imidazole-4-sulfonyl)piperidin-4-yl]piperazine	1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-4-[1-(1H-imidazole-4-sulfonyl)piperidin-4-yl]piperazine	分子量：478.9 密度：N/A 沸点：N/A 熔点：N/A	2097938-09-3	C₁₈H₂₂ClF₃N₆O₂S
1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-4-(1-{[3,5-dimethyl-1-(propan-2-yl)-1H-pyrazol-4-yl]sulfonyl}piperidin-4-yl)piperazine	1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-4-(1-{[3,5-dimethyl-1-(propan-2-yl)-1H-pyrazol-4-yl]sulfonyl}piperidin-4-yl)piperazine	分子量：549.1 密度：N/A 沸点：N/A 熔点：N/A	2097933-70-3	C₂₃H₃₂ClF₃N₆O₂S