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
N-(2-(5-chlorothiophen-2-yl)-2-methoxyethyl)-4-(1H-pyrazol-1-yl)benzenesulfonamide	N-(2-(5-chlorothiophen-2-yl)-2-methoxyethyl)-4-(1H-pyrazol-1-yl)benzenesulfonamide	分子量：397.9 密度：N/A 沸点：N/A 熔点：N/A	2034406-06-7	C₁₆H₁₆ClN₃O₃S₂
2-(4-(N-(2-(5-chlorothiophen-2-yl)-2-methoxyethyl)sulfamoyl)phenoxy)acetamide	2-(4-(N-(2-(5-chlorothiophen-2-yl)-2-methoxyethyl)sulfamoyl)phenoxy)acetamide	分子量：404.9 密度：N/A 沸点：N/A 熔点：N/A	2034599-50-1	C₁₅H₁₇ClN₂O₅S₂
5-(N-(2-(5-chlorothiophen-2-yl)-2-methoxyethyl)sulfamoyl)-2-methoxybenzamide	5-(N-(2-(5-chlorothiophen-2-yl)-2-methoxyethyl)sulfamoyl)-2-methoxybenzamide	分子量：404.9 密度：N/A 沸点：N/A 熔点：N/A	2034258-10-9	C₁₅H₁₇ClN₂O₅S₂
N-(2-(5-chlorothiophen-2-yl)-2-methoxyethyl)-4-(2-methyloxazol-4-yl)benzenesulfonamide	N-(2-(5-chlorothiophen-2-yl)-2-methoxyethyl)-4-(2-methyloxazol-4-yl)benzenesulfonamide	分子量：412.9 密度：N/A 沸点：N/A 熔点：N/A	2034530-37-3	C₁₇H₁₇ClN₂O₄S₂
methyl 3-(N-(2-(5-chlorothiophen-2-yl)-2-methoxyethyl)sulfamoyl)-4-methoxybenzoate	methyl 3-(N-(2-(5-chlorothiophen-2-yl)-2-methoxyethyl)sulfamoyl)-4-methoxybenzoate	分子量：419.9 密度：N/A 沸点：N/A 熔点：N/A	2034406-14-7	C₁₆H₁₈ClNO₆S₂
N-(2-(5-chlorothiophen-2-yl)-2-methoxyethyl)-4-(2,5-dioxopyrrolidin-1-yl)benzenesulfonamide	N-(2-(5-chlorothiophen-2-yl)-2-methoxyethyl)-4-(2,5-dioxopyrrolidin-1-yl)benzenesulfonamide	分子量：428.9 密度：N/A 沸点：N/A 熔点：N/A	2034599-58-9	C₁₇H₁₇ClN₂O₅S₂
N1-(2-(5-chlorothiophen-2-yl)-2-methoxyethyl)-N2-methyloxalamide	N1-(2-(5-chlorothiophen-2-yl)-2-methoxyethyl)-N2-methyloxalamide	分子量：276.74 密度：N/A 沸点：N/A 熔点：N/A	2034258-20-1	C₁₀H₁₃ClN₂O₃S
N1-(2-(5-chlorothiophen-2-yl)-2-methoxyethyl)-N2-(isoxazol-3-yl)oxalamide	N1-(2-(5-chlorothiophen-2-yl)-2-methoxyethyl)-N2-(isoxazol-3-yl)oxalamide	分子量：329.76 密度：N/A 沸点：N/A 熔点：N/A	2034406-24-9	C₁₂H₁₂ClN₃O₄S
N1-(2-(5-chlorothiophen-2-yl)-2-methoxyethyl)-N2-phenyloxalamide	N1-(2-(5-chlorothiophen-2-yl)-2-methoxyethyl)-N2-phenyloxalamide	分子量：338.8 密度：N/A 沸点：N/A 熔点：N/A	2034406-31-8	C₁₅H₁₅ClN₂O₃S
N1-(2-(5-chlorothiophen-2-yl)-2-methoxyethyl)-N2-(pyridin-3-yl)oxalamide	N1-(2-(5-chlorothiophen-2-yl)-2-methoxyethyl)-N2-(pyridin-3-yl)oxalamide	分子量：339.8 密度：N/A 沸点：N/A 熔点：N/A	2034530-42-0	C₁₄H₁₄ClN₃O₃S
N1-(2-(5-chlorothiophen-2-yl)-2-methoxyethyl)-N2-(thiophen-2-ylmethyl)oxalamide	N1-(2-(5-chlorothiophen-2-yl)-2-methoxyethyl)-N2-(thiophen-2-ylmethyl)oxalamide	分子量：358.9 密度：N/A 沸点：N/A 熔点：N/A	2034406-39-6	C₁₄H₁₅ClN₂O₃S₂
(2-isopropyl-5-methyl-cyclopentyl) butanoate	(2-isopropyl-5-methyl-cyclopentyl) butanoate	分子量：212.33 密度：N/A 沸点：N/A 熔点：N/A	1266606-26-1	C₁₃H₂₄O₂
tert-butyl 1-methylcyclohexanecarboperoxoate	tert-butyl 1-methylcyclohexanecarboperoxoate	分子量：214.30 密度：N/A 沸点：N/A 熔点：N/A	25023-15-8	C₁₂H₂₂O₃
5-Amino-6-(cyclopropylmethoxy)-N-3-oxetanyl-3-pyridinesulfonamide	5-Amino-6-(cyclopropylmethoxy)-N-3-oxetanyl-3-pyridinesulfonamide	分子量：299.35 密度：N/A 沸点：N/A 熔点：N/A	1604062-27-2	C₁₂H₁₇N₃O₄S
7-(Furan-2-yl)-4-(methylsulfonyl)-1,4-thiazepane	7-(Furan-2-yl)-4-(methylsulfonyl)-1,4-thiazepane	分子量：261.4 密度：N/A 沸点：N/A 熔点：N/A	1705355-33-4	C₁₀H₁₅NO₃S₂
7-(Furan-2-yl)-4-(propylsulfonyl)-1,4-thiazepane	7-(Furan-2-yl)-4-(propylsulfonyl)-1,4-thiazepane	分子量：289.4 密度：N/A 沸点：N/A 熔点：N/A	1705932-51-9	C₁₂H₁₉NO₃S₂
1,3-dimethyl-N-((5-(thiophen-3-yl)pyridin-3-yl)methyl)-1H-pyrazole-5-carboxamide	1,3-dimethyl-N-((5-(thiophen-3-yl)pyridin-3-yl)methyl)-1H-pyrazole-5-carboxamide	分子量：312.4 密度：N/A 沸点：N/A 熔点：N/A	1704639-10-0	C₁₆H₁₆N₄OS
1-(Thiophen-2-yl)-3-((5-(thiophen-3-yl)pyridin-3-yl)methyl)urea	1-(Thiophen-2-yl)-3-((5-(thiophen-3-yl)pyridin-3-yl)methyl)urea	分子量：315.4 密度：N/A 沸点：N/A 熔点：N/A	1705496-71-4	C₁₅H₁₃N₃OS₂
1,3,5-trimethyl-N-{[5-(thiophen-3-yl)pyridin-3-yl]methyl}-1H-pyrazole-4-sulfonamide	1,3,5-trimethyl-N-{[5-(thiophen-3-yl)pyridin-3-yl]methyl}-1H-pyrazole-4-sulfonamide	分子量：362.5 密度：N/A 沸点：N/A 熔点：N/A	1705067-21-5	C₁₆H₁₈N₄O₂S₂
11-Cyclopropanecarbonyl-4-methyl-2,3,7,11-tetraazatricyclo[7.4.0.0^{2,6}]trideca-1(9),3,5,7-tetraene	11-Cyclopropanecarbonyl-4-methyl-2,3,7,11-tetraazatricyclo[7.4.0.0^{2,6}]trideca-1(9),3,5,7-tetraene	分子量：256.30 密度：N/A 沸点：N/A 熔点：N/A	1705428-36-9	C₁₄H₁₆N₄O
11-(4-Methoxybenzoyl)-4-methyl-2,3,7,11-tetraazatricyclo[7.4.0.0^{2,6}]trideca-1(9),3,5,7-tetraene	11-(4-Methoxybenzoyl)-4-methyl-2,3,7,11-tetraazatricyclo[7.4.0.0^{2,6}]trideca-1(9),3,5,7-tetraene	分子量：322.4 密度：N/A 沸点：N/A 熔点：N/A	1706291-14-6	C₁₈H₁₈N₄O₂
11-(4-Chlorobenzoyl)-4-methyl-2,3,7,11-tetraazatricyclo[7.4.0.0^{2,6}]trideca-1(9),3,5,7-tetraene	11-(4-Chlorobenzoyl)-4-methyl-2,3,7,11-tetraazatricyclo[7.4.0.0^{2,6}]trideca-1(9),3,5,7-tetraene	分子量：326.8 密度：N/A 沸点：N/A 熔点：N/A	1705323-96-1	C₁₇H₁₅ClN₄O
11-(2,3-Dimethoxybenzoyl)-4-methyl-2,3,7,11-tetraazatricyclo[7.4.0.0^{2,6}]trideca-1(9),3,5,7-tetraene	11-(2,3-Dimethoxybenzoyl)-4-methyl-2,3,7,11-tetraazatricyclo[7.4.0.0^{2,6}]trideca-1(9),3,5,7-tetraene	分子量：352.4 密度：N/A 沸点：N/A 熔点：N/A	1705211-83-1	C₁₉H₂₀N₄O₃
1-{4-Methyl-2,3,7,11-tetraazatricyclo[7.4.0.0^{2,6}]trideca-1(9),3,5,7-tetraen-11-yl}-3-(3-methylthiophen-2-yl)propan-1-one	1-{4-Methyl-2,3,7,11-tetraazatricyclo[7.4.0.0^{2,6}]trideca-1(9),3,5,7-tetraen-11-yl}-3-(3-methylthiophen-2-yl)propan-1-one	分子量：340.4 密度：N/A 沸点：N/A 熔点：N/A	1706291-23-7	C₁₈H₂₀N₄OS
(2-methyl-8,9-dihydropyrazolo[1,5-a]pyrido[3,4-e]pyrimidin-7(6H)-yl)(naphthalen-1-yl)methanone	(2-methyl-8,9-dihydropyrazolo[1,5-a]pyrido[3,4-e]pyrimidin-7(6H)-yl)(naphthalen-1-yl)methanone	分子量：342.4 密度：N/A 沸点：N/A 熔点：N/A	1704639-57-5	C₂₁H₁₈N₄O
(2-bromophenyl)(2-methyl-8,9-dihydropyrazolo[1,5-a]pyrido[3,4-e]pyrimidin-7(6H)-yl)methanone	(2-bromophenyl)(2-methyl-8,9-dihydropyrazolo[1,5-a]pyrido[3,4-e]pyrimidin-7(6H)-yl)methanone	分子量：371.2 密度：N/A 沸点：N/A 熔点：N/A	1705882-40-1	C₁₇H₁₅BrN₄O
(2-methyl-8,9-dihydropyrazolo[1,5-a]pyrido[3,4-e]pyrimidin-7(6H)-yl)(2-phenylthiazol-4-yl)methanone	(2-methyl-8,9-dihydropyrazolo[1,5-a]pyrido[3,4-e]pyrimidin-7(6H)-yl)(2-phenylthiazol-4-yl)methanone	分子量：375.4 密度：N/A 沸点：N/A 熔点：N/A	1705505-43-6	C₂₀H₁₇N₅OS
(1,3-dimethyl-1H-pyrazol-5-yl)(2-methyl-8,9-dihydropyrazolo[1,5-a]pyrido[3,4-e]pyrimidin-7(6H)-yl)methanone	(1,3-dimethyl-1H-pyrazol-5-yl)(2-methyl-8,9-dihydropyrazolo[1,5-a]pyrido[3,4-e]pyrimidin-7(6H)-yl)methanone	分子量：310.35 密度：N/A 沸点：N/A 熔点：N/A	1705212-80-1	C₁₆H₁₈N₆O
1-[4-({4-Methyl-2,3,7,11-tetraazatricyclo[7.4.0.0^{2,6}]trideca-1(9),3,5,7-tetraen-11-yl}sulfonyl)phenyl]ethan-1-one	1-[4-({4-Methyl-2,3,7,11-tetraazatricyclo[7.4.0.0^{2,6}]trideca-1(9),3,5,7-tetraen-11-yl}sulfonyl)phenyl]ethan-1-one	分子量：370.4 密度：N/A 沸点：N/A 熔点：N/A	1705331-78-7	C₁₈H₁₈N₄O₃S
1-[3-({4-Methyl-2,3,7,11-tetraazatricyclo[7.4.0.0^{2,6}]trideca-1(9),3,5,7-tetraen-11-yl}sulfonyl)phenyl]ethan-1-one	1-[3-({4-Methyl-2,3,7,11-tetraazatricyclo[7.4.0.0^{2,6}]trideca-1(9),3,5,7-tetraen-11-yl}sulfonyl)phenyl]ethan-1-one	分子量：370.4 密度：N/A 沸点：N/A 熔点：N/A	1705429-90-8	C₁₈H₁₈N₄O₃S
6-methyl-4-((1-nicotinoylpyrrolidin-3-yl)oxy)-2H-pyran-2-one	6-methyl-4-((1-nicotinoylpyrrolidin-3-yl)oxy)-2H-pyran-2-one	分子量：300.31 密度：N/A 沸点：N/A 熔点：N/A	1704534-58-6	C₁₆H₁₆N₂O₄
6-methyl-4-((1-(2-(thiophen-2-yl)acetyl)pyrrolidin-3-yl)oxy)-2H-pyran-2-one	6-methyl-4-((1-(2-(thiophen-2-yl)acetyl)pyrrolidin-3-yl)oxy)-2H-pyran-2-one	分子量：319.4 密度：N/A 沸点：N/A 熔点：N/A	1705506-36-0	C₁₆H₁₇NO₄S
6-methyl-4-((1-(2-(m-tolyl)acetyl)pyrrolidin-3-yl)oxy)-2H-pyran-2-one	6-methyl-4-((1-(2-(m-tolyl)acetyl)pyrrolidin-3-yl)oxy)-2H-pyran-2-one	分子量：327.4 密度：N/A 沸点：N/A 熔点：N/A	1705208-40-7	C₁₉H₂₁NO₄
4-((1-(2-(3-methoxyphenyl)acetyl)pyrrolidin-3-yl)oxy)-6-methyl-2H-pyran-2-one	4-((1-(2-(3-methoxyphenyl)acetyl)pyrrolidin-3-yl)oxy)-6-methyl-2H-pyran-2-one	分子量：343.4 密度：N/A 沸点：N/A 熔点：N/A	1705249-09-7	C₁₉H₂₁NO₅
6-methyl-4-({1-[2-(trifluoromethyl)benzoyl]pyrrolidin-3-yl}oxy)-2H-pyran-2-one	6-methyl-4-({1-[2-(trifluoromethyl)benzoyl]pyrrolidin-3-yl}oxy)-2H-pyran-2-one	分子量：367.3 密度：N/A 沸点：N/A 熔点：N/A	1705200-24-3	C₁₈H₁₆F₃NO₄
4-((1-(2-bromo-5-methoxybenzoyl)pyrrolidin-3-yl)oxy)-6-methyl-2H-pyran-2-one	4-((1-(2-bromo-5-methoxybenzoyl)pyrrolidin-3-yl)oxy)-6-methyl-2H-pyran-2-one	分子量：408.2 密度：N/A 沸点：N/A 熔点：N/A	1705332-63-3	C₁₈H₁₈BrNO₅
methyl (3S)-3-amino-3-cyclopropylpropanoate	methyl (3S)-3-amino-3-cyclopropylpropanoate	分子量：143.18 密度：N/A 沸点：N/A 熔点：N/A	1344403-30-0	C₇H₁₃NO₂
Rac-(1R,2S)-2-cyclopropylcyclopropane-1-carboxylic acid	Rac-(1R,2S)-2-cyclopropylcyclopropane-1-carboxylic acid	分子量：126.15 密度：N/A 沸点：N/A 熔点：N/A	1909287-93-9	C₇H₁₀O₂
(2R)-2-(1,3-Benzodioxol-5-yl)propan-1-ol	(2R)-2-(1,3-Benzodioxol-5-yl)propan-1-ol	分子量：180.20 密度：N/A 沸点：N/A 熔点：N/A	2248184-86-1	C₁₀H₁₂O₃
N-(propan-2-yl)-1-[(2S)-pyrrolidin-2-yl]methanesulfonamide	N-(propan-2-yl)-1-[(2S)-pyrrolidin-2-yl]methanesulfonamide	分子量：206.31 密度：N/A 沸点：N/A 熔点：N/A	2137087-48-8	C₈H₁₈N₂O₂S
N-Methyl-1-(2S)-pyrrolidin-2-ylmethanesulfonamide	N-Methyl-1-(2S)-pyrrolidin-2-ylmethanesulfonamide	分子量：178.26 密度：N/A 沸点：N/A 熔点：N/A	1821828-69-6	C₆H₁₄N₂O₂S
(2S)-1-(3,4-dimethylphenyl)propan-2-ol	(2S)-1-(3,4-dimethylphenyl)propan-2-ol	分子量：164.24 密度：N/A 沸点：N/A 熔点：N/A	2227680-66-0	C₁₁H₁₆O
rac-(1R,2S)-2-(2,5-dimethylphenyl)cyclopropan-1-amine	rac-(1R,2S)-2-(2,5-dimethylphenyl)cyclopropan-1-amine	分子量：161.24 密度：N/A 沸点：N/A 熔点：N/A	2227650-18-0	C₁₁H₁₅N
2-Methyl-5-[4-(trifluoromethoxy)phenyl]pyrazole-3-carboxylic acid	2-Methyl-5-[4-(trifluoromethoxy)phenyl]pyrazole-3-carboxylic acid	分子量：286.21 密度：N/A 沸点：N/A 熔点：N/A	2229079-70-1	C₁₂H₉F₃N₂O₃
Methyl (S)-2-amino-2-(2,5-dimethylphenyl)acetate hcl	Methyl (S)-2-amino-2-(2,5-dimethylphenyl)acetate hcl	分子量：193.24 密度：N/A 沸点：N/A 熔点：N/A	1213361-49-9	C₁₁H₁₅NO₂
Methyl (R)-2-amino-2-(2,5-dimethylphenyl)acetate hcl	Methyl (R)-2-amino-2-(2,5-dimethylphenyl)acetate hcl	分子量：193.24 密度：N/A 沸点：N/A 熔点：N/A	1213976-94-3	C₁₁H₁₅NO₂
(R)-2-(2,5-Dimethylphenyl)-2-(methylamino)ethan-1-OL	(R)-2-(2,5-Dimethylphenyl)-2-(methylamino)ethan-1-OL	分子量：179.26 密度：N/A 沸点：N/A 熔点：N/A	1336238-60-8	C₁₁H₁₇NO
ethyl 5-amino-2-cyclopropyl-1H-imidazole-4-carboxylate	ethyl 5-amino-2-cyclopropyl-1H-imidazole-4-carboxylate	分子量：195.22 密度：N/A 沸点：N/A 熔点：N/A	2111706-43-3	C₉H₁₃N₃O₂
(1R)-2-amino-1-(2,5-dimethylthiophen-3-yl)ethan-1-ol	(1R)-2-amino-1-(2,5-dimethylthiophen-3-yl)ethan-1-ol	分子量：171.26 密度：N/A 沸点：N/A 熔点：N/A	2227692-58-0	C₈H₁₃NOS
(2R)-2-amino-2-(2,5-dimethylthiophen-3-yl)ethan-1-ol	(2R)-2-amino-2-(2,5-dimethylthiophen-3-yl)ethan-1-ol	分子量：171.26 密度：N/A 沸点：N/A 熔点：N/A	1213328-14-3	C₈H₁₃NOS