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-[4-(2-Phenoxyethyl)piperazin-1-yl]-6-(trifluoromethyl)pyrimidine	4-[4-(2-Phenoxyethyl)piperazin-1-yl]-6-(trifluoromethyl)pyrimidine	分子量：352.35 密度：N/A 沸点：N/A 熔点：N/A	2877644-68-1	C₁₇H₁₉F₃N₄O
2-[4-(1,2-Benzothiazol-3-yl)piperazin-1-yl]pyrimidine-4-carbonitrile	2-[4-(1,2-Benzothiazol-3-yl)piperazin-1-yl]pyrimidine-4-carbonitrile	分子量：322.4 密度：N/A 沸点：N/A 熔点：N/A	2877711-58-3	C₁₆H₁₄N₆S
7-Chloro-8-(2-methylbut-3-yn-2-yl)quinoline	7-Chloro-8-(2-methylbut-3-yn-2-yl)quinoline	分子量：229.70 密度：N/A 沸点：N/A 熔点：N/A	2228912-46-5	C₁₄H₁₂ClN
4-(4-{[(3-Methylpyrazin-2-yl)oxy]methyl}piperidin-1-yl)benzonitrile	4-(4-{[(3-Methylpyrazin-2-yl)oxy]methyl}piperidin-1-yl)benzonitrile	分子量：308.4 密度：N/A 沸点：N/A 熔点：N/A	2877722-28-4	C₁₈H₂₀N₄O
1-[(4-Chlorophenyl)methyl]-4-[(5-fluoropyridin-3-yl)methyl]piperazine	1-[(4-Chlorophenyl)methyl]-4-[(5-fluoropyridin-3-yl)methyl]piperazine	分子量：319.8 密度：N/A 沸点：N/A 熔点：N/A	2877750-75-7	C₁₇H₁₉ClFN₃
N-{[4-fluoro-1-(5-methoxy-1,3-benzothiazol-2-yl)piperidin-4-yl]methyl}oxolane-3-carboxamide	N-{[4-fluoro-1-(5-methoxy-1,3-benzothiazol-2-yl)piperidin-4-yl]methyl}oxolane-3-carboxamide	分子量：393.5 密度：N/A 沸点：N/A 熔点：N/A	2877650-13-8	C₁₉H₂₄FN₃O₃S
N,N-dimethyl-6-[4-(2-phenoxyethyl)piperazin-1-yl]pyridazin-3-amine	N,N-dimethyl-6-[4-(2-phenoxyethyl)piperazin-1-yl]pyridazin-3-amine	分子量：327.4 密度：N/A 沸点：N/A 熔点：N/A	2877672-93-8	C₁₈H₂₅N₅O
2-(4-{4H,5H,6H-cyclopenta[d][1,3]thiazol-2-yl}piperazin-1-yl)-4-(4-methylpiperazin-1-yl)pyrimidine	2-(4-{4H,5H,6H-cyclopenta[d][1,3]thiazol-2-yl}piperazin-1-yl)-4-(4-methylpiperazin-1-yl)pyrimidine	分子量：385.5 密度：N/A 沸点：N/A 熔点：N/A	2877650-39-8	C₁₉H₂₇N₇S
4-(4-{4H,5H,6H-cyclopenta[d][1,3]thiazol-2-yl}piperazin-1-yl)-2-(4-methylpiperazin-1-yl)pyrimidine	4-(4-{4H,5H,6H-cyclopenta[d][1,3]thiazol-2-yl}piperazin-1-yl)-2-(4-methylpiperazin-1-yl)pyrimidine	分子量：385.5 密度：N/A 沸点：N/A 熔点：N/A	2877650-41-2	C₁₉H₂₇N₇S
5-Chloro-2-{4-[4-(dimethylamino)-6-methylpyrimidin-2-yl]piperazin-1-yl}-4,6-dimethylpyridine-3-carbonitrile	5-Chloro-2-{4-[4-(dimethylamino)-6-methylpyrimidin-2-yl]piperazin-1-yl}-4,6-dimethylpyridine-3-carbonitrile	分子量：385.9 密度：N/A 沸点：N/A 熔点：N/A	2877762-79-1	C₁₉H₂₄ClN₇
3,4-Difluoro-5-isopropoxybenzaldehyde	3,4-Difluoro-5-isopropoxybenzaldehyde	分子量：200.18 密度：N/A 沸点：N/A 熔点：N/A	1236364-47-8	C₁₀H₁₀F₂O₂
5-Chloro-2-{4-[2-(dimethylamino)-6-methylpyrimidin-4-yl]piperazin-1-yl}-4,6-dimethylpyridine-3-carbonitrile	5-Chloro-2-{4-[2-(dimethylamino)-6-methylpyrimidin-4-yl]piperazin-1-yl}-4,6-dimethylpyridine-3-carbonitrile	分子量：385.9 密度：N/A 沸点：N/A 熔点：N/A	2877719-39-4	C₁₉H₂₄ClN₇
N-tert-butyl-1-[2-(2,3-dihydro-1H-indol-1-yl)-2-oxoethyl]piperidine-3-carboxamide	N-tert-butyl-1-[2-(2,3-dihydro-1H-indol-1-yl)-2-oxoethyl]piperidine-3-carboxamide	分子量：343.5 密度：N/A 沸点：N/A 熔点：N/A	2877642-54-9	C₂₀H₂₉N₃O₂
4-{6-[4-(2-Phenoxyethyl)piperazin-1-yl]pyridazin-3-yl}morpholine	4-{6-[4-(2-Phenoxyethyl)piperazin-1-yl]pyridazin-3-yl}morpholine	分子量：369.5 密度：N/A 沸点：N/A 熔点：N/A	2877751-00-1	C₂₀H₂₇N₅O₂
1-(2,3-dihydro-1H-indol-1-yl)-2-[4-(thiomorpholine-4-carbonyl)piperidin-1-yl]ethan-1-one	1-(2,3-dihydro-1H-indol-1-yl)-2-[4-(thiomorpholine-4-carbonyl)piperidin-1-yl]ethan-1-one	分子量：373.5 密度：N/A 沸点：N/A 熔点：N/A	2877762-93-9	C₂₀H₂₇N₃O₂S
Methyl 2-{[6-(trifluoromethyl)pyrimidin-4-yl]oxy}acetate	Methyl 2-{[6-(trifluoromethyl)pyrimidin-4-yl]oxy}acetate	分子量：236.15 密度：N/A 沸点：N/A 熔点：N/A	2749746-55-0	C₈H₇F₃N₂O₃
2-{4-[2-(2,3-Dihydro-1-benzofuran-5-yl)ethyl]piperazin-1-yl}-4-methoxypyrimidine	2-{4-[2-(2,3-Dihydro-1-benzofuran-5-yl)ethyl]piperazin-1-yl}-4-methoxypyrimidine	分子量：340.4 密度：N/A 沸点：N/A 熔点：N/A	2877646-56-3	C₁₉H₂₄N₄O₂
4-{Methyl[(prop-2-en-1-yloxy)carbonyl]amino}pentanoic acid	4-{Methyl[(prop-2-en-1-yloxy)carbonyl]amino}pentanoic acid	分子量：215.25 密度：N/A 沸点：N/A 熔点：N/A	2680690-53-1	C₁₀H₁₇NO₄
(3,3-Dimethyl-1-propoxycyclohexyl)methanamine	(3,3-Dimethyl-1-propoxycyclohexyl)methanamine	分子量：199.33 密度：N/A 沸点：N/A 熔点：N/A	2138567-68-5	C₁₂H₂₅NO
4-{4-[2-(2,3-Dihydro-1-benzofuran-5-yl)ethyl]piperazin-1-yl}-6-methoxypyrimidine	4-{4-[2-(2,3-Dihydro-1-benzofuran-5-yl)ethyl]piperazin-1-yl}-6-methoxypyrimidine	分子量：340.4 密度：N/A 沸点：N/A 熔点：N/A	2877704-79-3	C₁₉H₂₄N₄O₂
N,N-dimethyl-4-[4-(2-phenoxyethyl)piperazin-1-yl]pyrimidin-2-amine	N,N-dimethyl-4-[4-(2-phenoxyethyl)piperazin-1-yl]pyrimidin-2-amine	分子量：327.4 密度：N/A 沸点：N/A 熔点：N/A	2877666-97-0	C₁₈H₂₅N₅O
1-(1-Benzothiophen-4-yl)-4-[(3-methyl-1,2,4-oxadiazol-5-yl)methyl]piperazine	1-(1-Benzothiophen-4-yl)-4-[(3-methyl-1,2,4-oxadiazol-5-yl)methyl]piperazine	分子量：314.4 密度：N/A 沸点：N/A 熔点：N/A	2877763-11-4	C₁₆H₁₈N₄OS
1-[(2-Chloro-6-fluorophenyl)methyl]-4-[(3-methylpyridin-2-yl)methyl]piperazine	1-[(2-Chloro-6-fluorophenyl)methyl]-4-[(3-methylpyridin-2-yl)methyl]piperazine	分子量：333.8 密度：N/A 沸点：N/A 熔点：N/A	2877648-12-7	C₁₈H₂₁ClFN₃
2-(4-{5,6-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}piperazin-1-yl)-5H,6H,7H-cyclopenta[b]pyridine-3-carbonitrile	2-(4-{5,6-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}piperazin-1-yl)-5H,6H,7H-cyclopenta[b]pyridine-3-carbonitrile	分子量：374.4 密度：N/A 沸点：N/A 熔点：N/A	2877653-58-0	C₂₀H₂₂N₈
4-[4-(5-Chloro-3-fluoropyridin-2-yl)piperazin-1-yl]-2-methyl-6-(piperidin-1-yl)pyrimidine	4-[4-(5-Chloro-3-fluoropyridin-2-yl)piperazin-1-yl]-2-methyl-6-(piperidin-1-yl)pyrimidine	分子量：390.9 密度：N/A 沸点：N/A 熔点：N/A	2877722-09-1	C₁₉H₂₄ClFN₆
N-{1-[2-(2,6-dimethylmorpholin-4-yl)-2-oxoethyl]piperidin-4-yl}methanesulfonamide	N-{1-[2-(2,6-dimethylmorpholin-4-yl)-2-oxoethyl]piperidin-4-yl}methanesulfonamide	分子量：333.45 密度：N/A 沸点：N/A 熔点：N/A	2877704-87-3	C₁₄H₂₇N₃O₄S
{1-[(2-Methylquinolin-4-yl)methyl]cyclopropyl}methanol	{1-[(2-Methylquinolin-4-yl)methyl]cyclopropyl}methanol	分子量：227.30 密度：N/A 沸点：N/A 熔点：N/A	2228216-01-9	C₁₅H₁₇NO
4-{2-[4-(2-Phenoxyethyl)piperazin-1-yl]pyrimidin-4-yl}morpholine	4-{2-[4-(2-Phenoxyethyl)piperazin-1-yl]pyrimidin-4-yl}morpholine	分子量：369.5 密度：N/A 沸点：N/A 熔点：N/A	2877763-37-4	C₂₀H₂₇N₅O₂
4-[4-(2-Phenoxyethyl)piperazin-1-yl]-6-(pyrrolidin-1-yl)pyrimidine	4-[4-(2-Phenoxyethyl)piperazin-1-yl]-6-(pyrrolidin-1-yl)pyrimidine	分子量：353.5 密度：N/A 沸点：N/A 熔点：N/A	2877722-21-7	C₂₀H₂₇N₅O
4-{4-[4-(2-Phenoxyethyl)piperazin-1-yl]pyrimidin-2-yl}morpholine	4-{4-[4-(2-Phenoxyethyl)piperazin-1-yl]pyrimidin-2-yl}morpholine	分子量：369.5 密度：N/A 沸点：N/A 熔点：N/A	2877649-06-2	C₂₀H₂₇N₅O₂
N-{[1-(4,7-dimethyl-1,3-benzothiazol-2-yl)-4-fluoropiperidin-4-yl]methyl}oxolane-3-carboxamide	N-{[1-(4,7-dimethyl-1,3-benzothiazol-2-yl)-4-fluoropiperidin-4-yl]methyl}oxolane-3-carboxamide	分子量：391.5 密度：N/A 沸点：N/A 熔点：N/A	2877650-15-0	C₂₀H₂₆FN₃O₂S
6-(4-{[3-(Propan-2-yl)-1,2,4-oxadiazol-5-yl]methyl}piperazin-1-yl)-2-[(pyridin-2-yl)methyl]-2,3-dihydropyridazin-3-one	6-(4-{[3-(Propan-2-yl)-1,2,4-oxadiazol-5-yl]methyl}piperazin-1-yl)-2-[(pyridin-2-yl)methyl]-2,3-dihydropyridazin-3-one	分子量：395.5 密度：N/A 沸点：N/A 熔点：N/A	2877650-16-1	C₂₀H₂₅N₇O₂
4-methoxy-N-[(4-methoxyphenyl)methyl]-N-methylpyrimidin-2-amine	4-methoxy-N-[(4-methoxyphenyl)methyl]-N-methylpyrimidin-2-amine	分子量：259.30 密度：N/A 沸点：N/A 熔点：N/A	2877764-37-7	C₁₄H₁₇N₃O₂
Methyl 2-[(5-fluoropyrimidin-4-yl)oxy]acetate	Methyl 2-[(5-fluoropyrimidin-4-yl)oxy]acetate	分子量：186.14 密度：N/A 沸点：N/A 熔点：N/A	2749760-30-1	C₇H₇FN₂O₃
2-[4-(2-Fluorophenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]acetic acid	2-[4-(2-Fluorophenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]acetic acid	分子量：248.21 密度：N/A 沸点：N/A 熔点：N/A	2803477-06-5	C₁₂H₉FN₂O₃
2-{4-[2-(2,3-dihydro-1-benzofuran-5-yl)ethyl]piperazin-1-yl}-N,N,6-trimethylpyrimidin-4-amine	2-{4-[2-(2,3-dihydro-1-benzofuran-5-yl)ethyl]piperazin-1-yl}-N,N,6-trimethylpyrimidin-4-amine	分子量：367.5 密度：N/A 沸点：N/A 熔点：N/A	2877654-89-0	C₂₁H₂₉N₅O
4-{4-[2-(2,3-dihydro-1-benzofuran-5-yl)ethyl]piperazin-1-yl}-N,N,6-trimethylpyrimidin-2-amine	4-{4-[2-(2,3-dihydro-1-benzofuran-5-yl)ethyl]piperazin-1-yl}-N,N,6-trimethylpyrimidin-2-amine	分子量：367.5 密度：N/A 沸点：N/A 熔点：N/A	2877763-44-3	C₂₁H₂₉N₅O
N-{[4-fluoro-1-(4-methoxy-1,3-benzothiazol-2-yl)piperidin-4-yl]methyl}-2,2-dimethylpropanamide	N-{[4-fluoro-1-(4-methoxy-1,3-benzothiazol-2-yl)piperidin-4-yl]methyl}-2,2-dimethylpropanamide	分子量：379.5 密度：N/A 沸点：N/A 熔点：N/A	2877643-38-2	C₁₉H₂₆FN₃O₂S
[2-(2-Bromo-3-fluorophenyl)propan-2-yl](methyl)amine	[2-(2-Bromo-3-fluorophenyl)propan-2-yl](methyl)amine	分子量：246.12 密度：N/A 沸点：N/A 熔点：N/A	2228982-36-1	C₁₀H₁₃BrFN
N-{[4-fluoro-1-(5-methoxy-1,3-benzothiazol-2-yl)piperidin-4-yl]methyl}-2,2-dimethylpropanamide	N-{[4-fluoro-1-(5-methoxy-1,3-benzothiazol-2-yl)piperidin-4-yl]methyl}-2,2-dimethylpropanamide	分子量：379.5 密度：N/A 沸点：N/A 熔点：N/A	2877706-22-2	C₁₉H₂₆FN₃O₂S
Methyl 2-((2,5-dimethylpyrazolo[1,5-a]pyrimidin-7-yl)oxy)acetate	Methyl 2-((2,5-dimethylpyrazolo[1,5-a]pyrimidin-7-yl)oxy)acetate	分子量：235.24 密度：N/A 沸点：N/A 熔点：N/A	2749760-40-3	C₁₁H₁₃N₃O₃
Methyl 2-(4-bromo-3-chloro-2-fluorophenyl)acetate	Methyl 2-(4-bromo-3-chloro-2-fluorophenyl)acetate	分子量：281.50 密度：N/A 沸点：N/A 熔点：N/A	2770403-60-4	C₉H₇BrClFO₂
rac-(3R,4S)-4-ethenyloxolan-3-amine	rac-(3R,4S)-4-ethenyloxolan-3-amine	分子量：113.16 密度：N/A 沸点：N/A 熔点：N/A	1310708-51-0	C₆H₁₁NO
4-[4-(4,6-Dimethoxypyrimidin-2-yl)piperazin-1-yl]-2-methyl-6-(piperidin-1-yl)pyrimidine	4-[4-(4,6-Dimethoxypyrimidin-2-yl)piperazin-1-yl]-2-methyl-6-(piperidin-1-yl)pyrimidine	分子量：399.5 密度：N/A 沸点：N/A 熔点：N/A	2877675-83-5	C₂₀H₂₉N₇O₂
(L)-Suberyl Carnitine-d3 Inner Salt	(L)-Suberyl Carnitine-d3 Inner Salt	分子量：320.40 密度：N/A 沸点：N/A 熔点：N/A	1803252-74-5	C₁₅H₂₇NO₆
1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 6-methoxy-3,4-dihydro-2H-1-benzopyran-3-carboxylate	1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 6-methoxy-3,4-dihydro-2H-1-benzopyran-3-carboxylate	分子量：353.3 密度：N/A 沸点：N/A 熔点：N/A	2248359-81-9	C₁₉H₁₅NO₆
1-[(4-Bromophenyl)methyl]-4-[(3-methylpyridin-2-yl)methyl]piperazine	1-[(4-Bromophenyl)methyl]-4-[(3-methylpyridin-2-yl)methyl]piperazine	分子量：360.3 密度：N/A 沸点：N/A 熔点：N/A	2877706-44-8	C₁₈H₂₂BrN₃
1-(1,2,3,4-Tetrahydroquinolin-1-yl)-2-[4-(thiomorpholine-4-carbonyl)piperidin-1-yl]ethan-1-one	1-(1,2,3,4-Tetrahydroquinolin-1-yl)-2-[4-(thiomorpholine-4-carbonyl)piperidin-1-yl]ethan-1-one	分子量：387.5 密度：N/A 沸点：N/A 熔点：N/A	2877652-25-8	C₂₁H₂₉N₃O₂S
2,3,5-Triacetyl-alpha-nicotinamide-D-ribofuranose Chloride	2,3,5-Triacetyl-alpha-nicotinamide-D-ribofuranose Chloride	分子量：416.8 密度：N/A 沸点：N/A 熔点：N/A	2225980-94-7	C₁₇H₂₁ClN₂O₈
Des-tris-hydroxyl Tris(2,2-dimethylpropanoate) Epi-Canagliflozin	Des-tris-hydroxyl Tris(2,2-dimethylpropanoate) Epi-Canagliflozin	分子量：696.9 密度：N/A 沸点：N/A 熔点：N/A	1804970-55-5	C₃₉H₄₉FO₈S