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
4-[3-Chloro-4-[(2,2,2-trifluoroacetyl)amino]phenoxy]-N-methyl-2-pyridinecarboxamide	4-[3-Chloro-4-[(2,2,2-trifluoroacetyl)amino]phenoxy]-N-methyl-2-pyridinecarboxamide	分子量：373.71 密度：N/A 沸点：N/A 熔点：N/A	284462-43-7	C₁₅H₁₁ClF₃N₃O₃
(4AS,7aS)-6-methyloctahydropyrrolo[3,4-b][1,4]oxazine	(4AS,7aS)-6-methyloctahydropyrrolo[3,4-b][1,4]oxazine	分子量：142.20 密度：N/A 沸点：N/A 熔点：N/A	2381441-02-5	C₇H₁₄N₂O
N-methyl-7-oxabicyclo[2.2.1]heptan-2-amine	N-methyl-7-oxabicyclo[2.2.1]heptan-2-amine	分子量：127.18 密度：N/A 沸点：N/A 熔点：N/A	1379149-00-4	C₇H₁₃NO
2-(3-Fluoro-2-methylphenyl)piperidine	2-(3-Fluoro-2-methylphenyl)piperidine	分子量：193.26 密度：N/A 沸点：N/A 熔点：N/A	1270568-25-6	C₁₂H₁₆FN
tert-butyl (3R)-3-(2,4-dichlorobenzyl)piperazine-1-carboxylate	tert-butyl (3R)-3-(2,4-dichlorobenzyl)piperazine-1-carboxylate	分子量：345.3 密度：N/A 沸点：N/A 熔点：N/A	1084796-15-5	C₁₆H₂₂Cl₂N₂O₂
(R)-2-Amino-3,3-dimethyl-1,1-diphenylbutan-1-OL	(R)-2-Amino-3,3-dimethyl-1,1-diphenylbutan-1-OL	分子量：269.4 密度：N/A 沸点：N/A 熔点：N/A	218800-31-8	C₁₈H₂₃NO
N-[1-(1H-indol-3-ylcarbonyl)piperidin-4-yl]cyclohexanecarboxamide	N-[1-(1H-indol-3-ylcarbonyl)piperidin-4-yl]cyclohexanecarboxamide	分子量：353.5 密度：N/A 沸点：N/A 熔点：N/A	1282099-27-7	C₂₁H₂₇N₃O₂
N-(2-methyl-2,6-dihydro-4H-thieno[3,4-c]pyrazol-3-yl)-2-(3-oxo-5,6,7,8-tetrahydrocinnolin-2(3H)-yl)acetamide	N-(2-methyl-2,6-dihydro-4H-thieno[3,4-c]pyrazol-3-yl)-2-(3-oxo-5,6,7,8-tetrahydrocinnolin-2(3H)-yl)acetamide	分子量：345.4 密度：N/A 沸点：N/A 熔点：N/A	1282120-63-1	C₁₆H₁₉N₅O₂S
6-(2-chlorophenyl)-2-{2-[4-(4-chlorophenyl)piperazino]-2-oxoethyl}-3(2H)-pyridazinone	6-(2-chlorophenyl)-2-{2-[4-(4-chlorophenyl)piperazino]-2-oxoethyl}-3(2H)-pyridazinone	分子量：443.3 密度：N/A 沸点：N/A 熔点：N/A	1282117-22-9	C₂₂H₂₀Cl₂N₄O₂
(R)-1-Benzyl-3-(3-fluorobenzyl)piperazine	(R)-1-Benzyl-3-(3-fluorobenzyl)piperazine	分子量：284.4 密度：N/A 沸点：N/A 熔点：N/A	1084795-86-7	C₁₈H₂₁FN₂
N-(1-methyl-1H-indol-4-yl)nicotinamide	N-(1-methyl-1H-indol-4-yl)nicotinamide	分子量：251.28 密度：N/A 沸点：N/A 熔点：N/A	1282111-91-4	C₁₅H₁₃N₃O
N-[(2E)-5-(2-methylpropyl)-1,3,4-thiadiazol-2(3H)-ylidene]-2-[3-(naphthalen-1-yl)-6-oxopyridazin-1(6H)-yl]acetamide	N-[(2E)-5-(2-methylpropyl)-1,3,4-thiadiazol-2(3H)-ylidene]-2-[3-(naphthalen-1-yl)-6-oxopyridazin-1(6H)-yl]acetamide	分子量：419.5 密度：N/A 沸点：N/A 熔点：N/A	1282129-69-4	C₂₂H₂₁N₅O₂S
2-[3-(4-bromophenyl)-6-oxopyridazin-1(6H)-yl]-N-[(2Z)-3,4,5,6-tetrahydro-2H-cyclopenta[d][1,3]thiazol-2-ylidene]acetamide	2-[3-(4-bromophenyl)-6-oxopyridazin-1(6H)-yl]-N-[(2Z)-3,4,5,6-tetrahydro-2H-cyclopenta[d][1,3]thiazol-2-ylidene]acetamide	分子量：431.3 密度：N/A 沸点：N/A 熔点：N/A	1282120-68-6	C₁₈H₁₅BrN₄O₂S
N-(6-methoxy-1,3-benzothiazol-2-yl)-4-methyl-2-(1H-pyrrol-1-yl)-1,3-thiazole-5-carboxamide	N-(6-methoxy-1,3-benzothiazol-2-yl)-4-methyl-2-(1H-pyrrol-1-yl)-1,3-thiazole-5-carboxamide	分子量：370.5 密度：N/A 沸点：N/A 熔点：N/A	1282099-19-7	C₁₇H₁₄N₄O₂S₂
N-[3-(acetylamino)phenyl]-2-(4-methyl-1H-indol-1-yl)acetamide	N-[3-(acetylamino)phenyl]-2-(4-methyl-1H-indol-1-yl)acetamide	分子量：321.4 密度：N/A 沸点：N/A 熔点：N/A	1282096-83-6	C₁₉H₁₉N₃O₂
1-{[3-(4-chlorophenyl)-6-oxopyridazin-1(6H)-yl]acetyl}piperidine-4-carboxamide	1-{[3-(4-chlorophenyl)-6-oxopyridazin-1(6H)-yl]acetyl}piperidine-4-carboxamide	分子量：374.8 密度：N/A 沸点：N/A 熔点：N/A	1282115-52-9	C₁₈H₁₉ClN₄O₃
N-(1H-indol-6-yl)-5-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxamide	N-(1H-indol-6-yl)-5-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxamide	分子量：310.3 密度：N/A 沸点：N/A 熔点：N/A	1282112-65-5	C₁₅H₁₀N₄O₂S
3(S)-(4-hydroxyphenyl)-3-hydroxy propionic acid	3(S)-(4-hydroxyphenyl)-3-hydroxy propionic acid	分子量：182.17 密度：N/A 沸点：N/A 熔点：N/A	808758-17-0	C₉H₁₀O₄
rel-(1S,2S)-2-aminocyclohexane-1-carbonitrile	rel-(1S,2S)-2-aminocyclohexane-1-carbonitrile	分子量：124.18 密度：N/A 沸点：N/A 熔点：N/A	187610-79-3	C₇H₁₂N₂
(2S)-2-amino-3-hydroxy-N-(2-hydroxyethyl)propanamide	(2S)-2-amino-3-hydroxy-N-(2-hydroxyethyl)propanamide	分子量：148.16 密度：N/A 沸点：N/A 熔点：N/A	492459-09-3	C₅H₁₂N₂O₃
4-({[3-(3-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]acetyl}amino)benzamide	4-({[3-(3-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]acetyl}amino)benzamide	分子量：378.4 密度：N/A 沸点：N/A 熔点：N/A	1282130-53-3	C₂₀H₁₈N₄O₄
N-(4-fluoro-3-methylphenyl)methanesulfonamide	N-(4-fluoro-3-methylphenyl)methanesulfonamide	分子量：203.24 密度：N/A 沸点：N/A 熔点：N/A	1340453-15-7	C₈H₁₀FNO₂S
2-{3-[4-(3-chlorophenyl)piperazin-1-yl]-6-oxopyridazin-1(6H)-yl}-N-(1,3-thiazol-2-yl)acetamide	2-{3-[4-(3-chlorophenyl)piperazin-1-yl]-6-oxopyridazin-1(6H)-yl}-N-(1,3-thiazol-2-yl)acetamide	分子量：430.9 密度：N/A 沸点：N/A 熔点：N/A	1282125-15-8	C₁₉H₁₉ClN₆O₂S
N-[1-(1H-indol-3-ylcarbonyl)piperidin-4-yl]-2-methylpropanamide	N-[1-(1H-indol-3-ylcarbonyl)piperidin-4-yl]-2-methylpropanamide	分子量：313.4 密度：N/A 沸点：N/A 熔点：N/A	1282130-72-6	C₁₈H₂₃N₃O₂
1-(6-Bromobenzo[d]thiazol-2-yl)azetidin-3-yl methanesulfonate	1-(6-Bromobenzo[d]thiazol-2-yl)azetidin-3-yl methanesulfonate	分子量：363.3 密度：N/A 沸点：N/A 熔点：N/A	1161730-30-8	C₁₁H₁₁BrN₂O₃S₂
tert-butyl N-(prop-2-yn-1-yl)-N-(1,2,3,4-tetrahydronaphthalen-1-yl)carbamate	tert-butyl N-(prop-2-yn-1-yl)-N-(1,2,3,4-tetrahydronaphthalen-1-yl)carbamate	分子量：285.4 密度：N/A 沸点：N/A 熔点：N/A	2680798-79-0	C₁₈H₂₃NO₂
1-(1,3-Dimethyl-1H-pyrazol-5-yl)-2-methylpropan-1-one	1-(1,3-Dimethyl-1H-pyrazol-5-yl)-2-methylpropan-1-one	分子量：166.22 密度：N/A 沸点：N/A 熔点：N/A	1592276-02-2	C₉H₁₄N₂O
1-[(2-Methoxy-1-naphthalenyl)methyl]piperazine	1-[(2-Methoxy-1-naphthalenyl)methyl]piperazine	分子量：256.34 密度：N/A 沸点：N/A 熔点：N/A	869747-19-3	C₁₆H₂₀N₂O
4-(4-Chlorophenyl)-3,3-dimethylpiperidin-4-amine	4-(4-Chlorophenyl)-3,3-dimethylpiperidin-4-amine	分子量：238.75 密度：N/A 沸点：N/A 熔点：N/A	946594-35-0	C₁₃H₁₉ClN₂
1-(1-Methylindole-3-ylmethyl)piperazine	1-(1-Methylindole-3-ylmethyl)piperazine	分子量：229.32 密度：N/A 沸点：N/A 熔点：N/A	199109-45-0	C₁₄H₁₉N₃
I+/--[[[(Tetrahydro-1,1-dioxido-3-thienyl)methyl]amino]methyl]-1H-pyrazole-1-ethanol	I+/--[[[(Tetrahydro-1,1-dioxido-3-thienyl)methyl]amino]methyl]-1H-pyrazole-1-ethanol	分子量：273.35 密度：N/A 沸点：N/A 熔点：N/A	1182954-45-5	C₁₁H₁₉N₃O₃S
2-(Azepan-1-YL)-2-(4-chlorophenyl)acetic acid	2-(Azepan-1-YL)-2-(4-chlorophenyl)acetic acid	分子量：267.75 密度：N/A 沸点：N/A 熔点：N/A	1218630-72-8	C₁₄H₁₈ClNO₂
3-(2-Aminoethyl)pyridin-2-amine	3-(2-Aminoethyl)pyridin-2-amine	分子量：137.18 密度：N/A 沸点：N/A 熔点：N/A	844503-06-6	C₇H₁₁N₃
trans-2-(3-Hydroxy-cyclobutyl)-2-methyl-propionic acid methyl ester	trans-2-(3-Hydroxy-cyclobutyl)-2-methyl-propionic acid methyl ester	分子量：172.22 密度：N/A 沸点：N/A 熔点：N/A	1148130-14-6	C₉H₁₆O₃
3-(4-(Benzyloxy)phenyl)hex-4-ynoic acid	3-(4-(Benzyloxy)phenyl)hex-4-ynoic acid	分子量：294.3 密度：N/A 沸点：N/A 熔点：N/A	1043941-15-6	C₁₉H₁₈O₃
4-chloro-N-[2-(methylsulfonyl)ethyl]-2-nitroaniline	4-chloro-N-[2-(methylsulfonyl)ethyl]-2-nitroaniline	分子量：278.71 密度：N/A 沸点：N/A 熔点：N/A	1178426-69-1	C₉H₁₁ClN₂O₄S
5-Chloro-2-chloromethyl-1-(2-methanesulfonyl-ethyl)-1H-benzoimidazole	5-Chloro-2-chloromethyl-1-(2-methanesulfonyl-ethyl)-1H-benzoimidazole	分子量：307.2 密度：N/A 沸点：N/A 熔点：N/A	1183473-83-7	C₁₁H₁₂Cl₂N₂O₂S
5-(5-Methyl-3-isoxazolyl)-1,2,4-oxadiazole-3-methanamine	5-(5-Methyl-3-isoxazolyl)-1,2,4-oxadiazole-3-methanamine	分子量：180.16 密度：N/A 沸点：N/A 熔点：N/A	760943-20-2	C₇H₈N₄O₂
1-(3-Methoxypropyl)-1H-indole-2-carboxylic acid	1-(3-Methoxypropyl)-1H-indole-2-carboxylic acid	分子量：233.26 密度：N/A 沸点：N/A 熔点：N/A	1086023-84-8	C₁₃H₁₅NO₃
6-methoxypyrido[3,2-d]pyrimidine-2,4(1H,3H)-dione	6-methoxypyrido[3,2-d]pyrimidine-2,4(1H,3H)-dione	分子量：193.16 密度：N/A 沸点：N/A 熔点：N/A	1956331-57-9	C₈H₇N₃O₃
Propanamide, 3-chloro-N-(1-cyclopropylethyl)-2-methyl-N-(2,2,2-trifluoroethyl)-	Propanamide, 3-chloro-N-(1-cyclopropylethyl)-2-methyl-N-(2,2,2-trifluoroethyl)-	分子量：271.71 密度：N/A 沸点：N/A 熔点：N/A	1274070-42-6	C₁₁H₁₇ClF₃NO
4-(4-Amino-2-(trifluoromethyl)phenyl)thiomorpholine 1,1-dioxide	4-(4-Amino-2-(trifluoromethyl)phenyl)thiomorpholine 1,1-dioxide	分子量：294.30 密度：N/A 沸点：N/A 熔点：N/A	950643-58-0	C₁₁H₁₃F₃N₂O₂S
2-chloro-N'-(3-methoxypropanoyl)acetohydrazide	2-chloro-N'-(3-methoxypropanoyl)acetohydrazide	分子量：194.61 密度：N/A 沸点：N/A 熔点：N/A	1263386-31-7	C₆H₁₁ClN₂O₃
2,4-Dimethyl-5,6,7,8-tetrahydroquinazolin-7-one	2,4-Dimethyl-5,6,7,8-tetrahydroquinazolin-7-one	分子量：176.21 密度：N/A 沸点：N/A 熔点：N/A	944902-66-3	C₁₀H₁₂N₂O
N-(2,2-Dimethylpropoxy)-2-[(4-pyridinylmethyl)amino]benzamide	N-(2,2-Dimethylpropoxy)-2-[(4-pyridinylmethyl)amino]benzamide	分子量：313.4 密度：N/A 沸点：N/A 熔点：N/A	854378-60-2	C₁₈H₂₃N₃O₂
6-Fluoro-3-methylpyridin-2-amine	6-Fluoro-3-methylpyridin-2-amine	分子量：126.13 密度：N/A 沸点：N/A 熔点：N/A	1393576-76-5	C₆H₇FN₂
1-Ethyl-4-methylpiperidin-4-amine	1-Ethyl-4-methylpiperidin-4-amine	分子量：142.24 密度：N/A 沸点：N/A 熔点：N/A	1178743-22-0	C₈H₁₈N₂
1,1-Difluoro-3-methylbutan-2-one	1,1-Difluoro-3-methylbutan-2-one	分子量：122.11 密度：N/A 沸点：N/A 熔点：N/A	1566388-62-2	C₅H₈F₂O
2-methyl-1H-imidazo[4,5-b]pyridine-6-carbaldehyde	2-methyl-1H-imidazo[4,5-b]pyridine-6-carbaldehyde	分子量：161.16 密度：N/A 沸点：N/A 熔点：N/A	1367992-56-0	C₈H₇N₃O
3-(4-Aminobenzylamino)pyrrolidine-1-carboxylic acid tert-butyl ester hydrochloride	3-(4-Aminobenzylamino)pyrrolidine-1-carboxylic acid tert-butyl ester hydrochloride	分子量：327.8 密度：N/A 沸点：N/A 熔点：N/A	1266226-12-3	C₁₆H₂₆ClN₃O₂