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
2-(2-oxo-2H-benzo[b][1,4]oxazin-4(3H)-yl)-N-(4-(pyridin-3-yl)thiazol-2-yl)acetamide	2-(2-oxo-2H-benzo[b][1,4]oxazin-4(3H)-yl)-N-(4-(pyridin-3-yl)thiazol-2-yl)acetamide	分子量：366.4 密度：N/A 沸点：N/A 熔点：N/A	1324093-16-4	C₁₈H₁₄N₄O₃S
N-[2-(1H-indol-1-yl)ethyl]-2-[6-oxo-3-(thiophen-2-yl)pyridazin-1(6H)-yl]acetamide	N-[2-(1H-indol-1-yl)ethyl]-2-[6-oxo-3-(thiophen-2-yl)pyridazin-1(6H)-yl]acetamide	分子量：378.4 密度：N/A 沸点：N/A 熔点：N/A	1324086-94-3	C₂₀H₁₈N₄O₂S
2-(6-chloro-2-oxo-2,3-dihydro-4H-1,4-benzoxazin-4-yl)-N-[5-(2-methylpropyl)-1,3,4-thiadiazol-2-yl]acetamide	2-(6-chloro-2-oxo-2,3-dihydro-4H-1,4-benzoxazin-4-yl)-N-[5-(2-methylpropyl)-1,3,4-thiadiazol-2-yl]acetamide	分子量：380.8 密度：N/A 沸点：N/A 熔点：N/A	1324070-67-8	C₁₆H₁₇ClN₄O₃S
3-(6,8-dimethyl[1,2,4]triazolo[4,3-b]pyridazin-7-yl)-N-(1H-indol-6-yl)propanamide	3-(6,8-dimethyl[1,2,4]triazolo[4,3-b]pyridazin-7-yl)-N-(1H-indol-6-yl)propanamide	分子量：334.4 密度：N/A 沸点：N/A 熔点：N/A	1324078-40-1	C₁₈H₁₈N₆O
3-(6-methoxy-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)-N-(4-methoxybenzyl)propanamide	3-(6-methoxy-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)-N-(4-methoxybenzyl)propanamide	分子量：341.4 密度：N/A 沸点：N/A 熔点：N/A	1324079-87-9	C₁₇H₁₉N₅O₃
2-{2-[4-(2-methoxyphenyl)piperazin-1-yl]-2-oxoethyl}-6-(thiomorpholin-4-yl)pyridazin-3(2H)-one	2-{2-[4-(2-methoxyphenyl)piperazin-1-yl]-2-oxoethyl}-6-(thiomorpholin-4-yl)pyridazin-3(2H)-one	分子量：429.5 密度：N/A 沸点：N/A 熔点：N/A	1324095-84-2	C₂₁H₂₇N₅O₃S
2-[3-(2-fluoro-4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[1-(2-methoxyethyl)-1H-indol-4-yl]acetamide	2-[3-(2-fluoro-4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[1-(2-methoxyethyl)-1H-indol-4-yl]acetamide	分子量：450.5 密度：N/A 沸点：N/A 熔点：N/A	1324059-86-0	C₂₄H₂₃FN₄O₄
N-[2-(6-chloro-1H-indol-1-yl)ethyl]-2-methyl-1-oxo-1,2-dihydroisoquinoline-4-carboxamide	N-[2-(6-chloro-1H-indol-1-yl)ethyl]-2-methyl-1-oxo-1,2-dihydroisoquinoline-4-carboxamide	分子量：379.8 密度：N/A 沸点：N/A 熔点：N/A	1324062-53-4	C₂₁H₁₈ClN₃O₂
N-(diphenylmethyl)-4-(5-methyl-1H-tetrazol-1-yl)benzamide	N-(diphenylmethyl)-4-(5-methyl-1H-tetrazol-1-yl)benzamide	分子量：369.4 密度：N/A 沸点：N/A 熔点：N/A	1324066-61-6	C₂₂H₁₉N₅O
N-(4-methyl-1,3-thiazol-2-yl)-2-(3-oxo-3,5,7,8-tetrahydro-2H-thiopyrano[4,3-c]pyridazin-2-yl)acetamide	N-(4-methyl-1,3-thiazol-2-yl)-2-(3-oxo-3,5,7,8-tetrahydro-2H-thiopyrano[4,3-c]pyridazin-2-yl)acetamide	分子量：322.4 密度：N/A 沸点：N/A 熔点：N/A	1324091-43-1	C₁₃H₁₄N₄O₂S₂
2-(pyridin-4-yl)-N-[2-(1H-pyrrol-1-yl)ethyl]quinoline-4-carboxamide	2-(pyridin-4-yl)-N-[2-(1H-pyrrol-1-yl)ethyl]quinoline-4-carboxamide	分子量：342.4 密度：N/A 沸点：N/A 熔点：N/A	1324097-79-1	C₂₁H₁₈N₄O
2-[3-(2-fluorophenyl)-6-oxopyridazin-1(6H)-yl]-N-[1-(propan-2-yl)-1H-indol-4-yl]acetamide	2-[3-(2-fluorophenyl)-6-oxopyridazin-1(6H)-yl]-N-[1-(propan-2-yl)-1H-indol-4-yl]acetamide	分子量：404.4 密度：N/A 沸点：N/A 熔点：N/A	1324083-71-7	C₂₃H₂₁FN₄O₂
N-(3-chloro-4-fluorophenyl)-3-(6-methoxy[1,2,4]triazolo[4,3-b]pyridazin-3-yl)propanamide	N-(3-chloro-4-fluorophenyl)-3-(6-methoxy[1,2,4]triazolo[4,3-b]pyridazin-3-yl)propanamide	分子量：349.75 密度：N/A 沸点：N/A 熔点：N/A	1324061-48-4	C₁₅H₁₃ClFN₅O₂
3-(6,8-dimethyl[1,2,4]triazolo[4,3-b]pyridazin-7-yl)-N-(1,3,4-thiadiazol-2-yl)propanamide	3-(6,8-dimethyl[1,2,4]triazolo[4,3-b]pyridazin-7-yl)-N-(1,3,4-thiadiazol-2-yl)propanamide	分子量：303.35 密度：N/A 沸点：N/A 熔点：N/A	1324079-97-1	C₁₂H₁₃N₇OS
N-[2-(5-chloro-1H-indol-3-yl)ethyl]-2-methyl-1-oxo-1,2-dihydroisoquinoline-4-carboxamide	N-[2-(5-chloro-1H-indol-3-yl)ethyl]-2-methyl-1-oxo-1,2-dihydroisoquinoline-4-carboxamide	分子量：379.8 密度：N/A 沸点：N/A 熔点：N/A	1324064-43-8	C₂₁H₁₈ClN₃O₂
ethyl 2-({[4-(4-methoxyphenyl)tetrahydro-2H-pyran-4-yl]carbonyl}amino)-4-methyl-1,3-thiazole-5-carboxylate	ethyl 2-({[4-(4-methoxyphenyl)tetrahydro-2H-pyran-4-yl]carbonyl}amino)-4-methyl-1,3-thiazole-5-carboxylate	分子量：404.5 密度：N/A 沸点：N/A 熔点：N/A	1324061-50-8	C₂₀H₂₄N₂O₅S
4-(4-chlorophenyl)-N-{2-[(3-hydroxyphenyl)amino]-2-oxoethyl}piperazine-1-carboxamide	4-(4-chlorophenyl)-N-{2-[(3-hydroxyphenyl)amino]-2-oxoethyl}piperazine-1-carboxamide	分子量：388.8 密度：N/A 沸点：N/A 熔点：N/A	1324067-76-6	C₁₉H₂₁ClN₄O₃
4-(3-chlorophenyl)-N-{2-[(2-chlorophenyl)amino]-2-oxoethyl}piperazine-1-carboxamide	4-(3-chlorophenyl)-N-{2-[(2-chlorophenyl)amino]-2-oxoethyl}piperazine-1-carboxamide	分子量：407.3 密度：N/A 沸点：N/A 熔点：N/A	1324072-17-4	C₁₉H₂₀Cl₂N₄O₂
Methyl 4-{[3-(6-methoxy[1,2,4]triazolo[4,3-b]pyridazin-3-yl)propanoyl]amino}benzoate	Methyl 4-{[3-(6-methoxy[1,2,4]triazolo[4,3-b]pyridazin-3-yl)propanoyl]amino}benzoate	分子量：355.3 密度：N/A 沸点：N/A 熔点：N/A	1324074-39-6	C₁₇H₁₇N₅O₄
4-{[3-(6,8-Dimethyl[1,2,4]triazolo[4,3-b]pyridazin-7-yl)propanoyl]amino}benzamide	4-{[3-(6,8-Dimethyl[1,2,4]triazolo[4,3-b]pyridazin-7-yl)propanoyl]amino}benzamide	分子量：338.4 密度：N/A 沸点：N/A 熔点：N/A	1324094-69-0	C₁₇H₁₈N₆O₂
3-(6,8-dimethyl-[1,2,4]triazolo[4,3-b]pyridazin-7-yl)-N-(5-isopropyl-1,3,4-thiadiazol-2-yl)propanamide	3-(6,8-dimethyl-[1,2,4]triazolo[4,3-b]pyridazin-7-yl)-N-(5-isopropyl-1,3,4-thiadiazol-2-yl)propanamide	分子量：345.4 密度：N/A 沸点：N/A 熔点：N/A	1324093-29-9	C₁₅H₁₉N₇OS
2-[3-(2-fluorophenyl)-6-oxopyridazin-1(6H)-yl]-N-[1-(2-methoxyethyl)-1H-indol-4-yl]acetamide	2-[3-(2-fluorophenyl)-6-oxopyridazin-1(6H)-yl]-N-[1-(2-methoxyethyl)-1H-indol-4-yl]acetamide	分子量：420.4 密度：N/A 沸点：N/A 熔点：N/A	1324074-55-6	C₂₃H₂₁FN₄O₃
N-(5-benzyl-1,3,4-thiadiazol-2-yl)-2-(3-(furan-2-yl)-6-oxopyridazin-1(6H)-yl)acetamide	N-(5-benzyl-1,3,4-thiadiazol-2-yl)-2-(3-(furan-2-yl)-6-oxopyridazin-1(6H)-yl)acetamide	分子量：393.4 密度：N/A 沸点：N/A 熔点：N/A	1324087-09-3	C₁₉H₁₅N₅O₃S
2-(3-benzyl-4-oxo-3,4-dihydrophthalazin-1-yl)-N-[1-(2-methoxyethyl)-1H-indol-4-yl]acetamide	2-(3-benzyl-4-oxo-3,4-dihydrophthalazin-1-yl)-N-[1-(2-methoxyethyl)-1H-indol-4-yl]acetamide	分子量：466.5 密度：N/A 沸点：N/A 熔点：N/A	1324091-48-6	C₂₈H₂₆N₄O₃
4-(3-chlorophenyl)-N-[2-(cyclopentylamino)-2-oxoethyl]piperazine-1-carboxamide	4-(3-chlorophenyl)-N-[2-(cyclopentylamino)-2-oxoethyl]piperazine-1-carboxamide	分子量：364.9 密度：N/A 沸点：N/A 熔点：N/A	1324093-36-8	C₁₈H₂₅ClN₄O₂
N-(5,6-dihydro-4H-cyclopenta[d]thiazol-2-yl)-1-methyl-1H-indole-5-carboxamide	N-(5,6-dihydro-4H-cyclopenta[d]thiazol-2-yl)-1-methyl-1H-indole-5-carboxamide	分子量：297.4 密度：N/A 沸点：N/A 熔点：N/A	1324083-83-1	C₁₆H₁₅N₃OS
2-[3-(3-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[1-(3-methylbutyl)-1H-indol-4-yl]acetamide	2-[3-(3-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[1-(3-methylbutyl)-1H-indol-4-yl]acetamide	分子量：444.5 密度：N/A 沸点：N/A 熔点：N/A	1324059-89-3	C₂₆H₂₈N₄O₃
2-cyclopropyl-N-(2,4-dimethoxyphenyl)-1-oxo-1,2-dihydroisoquinoline-4-carboxamide	2-cyclopropyl-N-(2,4-dimethoxyphenyl)-1-oxo-1,2-dihydroisoquinoline-4-carboxamide	分子量：364.4 密度：N/A 沸点：N/A 熔点：N/A	1324066-62-7	C₂₁H₂₀N₂O₄
N-[1-(3-methylbutyl)-1H-indol-4-yl]-2-(1-oxophthalazin-2(1H)-yl)acetamide	N-[1-(3-methylbutyl)-1H-indol-4-yl]-2-(1-oxophthalazin-2(1H)-yl)acetamide	分子量：388.5 密度：N/A 沸点：N/A 熔点：N/A	1324096-18-5	C₂₃H₂₄N₄O₂
4-(4-chlorophenyl)-N-{2-oxo-2-[(2-phenylethyl)amino]ethyl}piperazine-1-carboxamide	4-(4-chlorophenyl)-N-{2-oxo-2-[(2-phenylethyl)amino]ethyl}piperazine-1-carboxamide	分子量：400.9 密度：N/A 沸点：N/A 熔点：N/A	1324092-46-7	C₂₁H₂₅ClN₄O₂
1-(6-chloropyridazin-3-yl)-N-[2-(2-methoxyphenyl)ethyl]piperidine-4-carboxamide	1-(6-chloropyridazin-3-yl)-N-[2-(2-methoxyphenyl)ethyl]piperidine-4-carboxamide	分子量：374.9 密度：N/A 沸点：N/A 熔点：N/A	1324059-94-0	C₁₉H₂₃ClN₄O₂
(6-Benzenesulfinyl-imidazo[1,2-a]pyridin-2-yl)-ethyl-carbamic acid methyl ester	(6-Benzenesulfinyl-imidazo[1,2-a]pyridin-2-yl)-ethyl-carbamic acid methyl ester	分子量：343.4 密度：N/A 沸点：N/A 熔点：N/A	64064-92-2	C₁₇H₁₇N₃O₃S
1-cyclopentyl-N-[2-(1H-indol-3-yl)ethyl]-6-methyl-1H-pyrazolo[3,4-b]pyridine-4-carboxamide	1-cyclopentyl-N-[2-(1H-indol-3-yl)ethyl]-6-methyl-1H-pyrazolo[3,4-b]pyridine-4-carboxamide	分子量：387.5 密度：N/A 沸点：N/A 熔点：N/A	1324098-61-4	C₂₃H₂₅N₅O
2-[3-(2-fluorophenyl)-6-oxopyridazin-1(6H)-yl]-N-{[4-(4-methoxyphenyl)tetrahydro-2H-pyran-4-yl]methyl}acetamide	2-[3-(2-fluorophenyl)-6-oxopyridazin-1(6H)-yl]-N-{[4-(4-methoxyphenyl)tetrahydro-2H-pyran-4-yl]methyl}acetamide	分子量：451.5 密度：N/A 沸点：N/A 熔点：N/A	1324061-51-9	C₂₅H₂₆FN₃O₄
1-(6,7-dimethoxy-3,4-dihydroisoquinolin-2(1H)-yl)-3-(6-methoxy[1,2,4]triazolo[4,3-b]pyridazin-3-yl)propan-1-one	1-(6,7-dimethoxy-3,4-dihydroisoquinolin-2(1H)-yl)-3-(6-methoxy[1,2,4]triazolo[4,3-b]pyridazin-3-yl)propan-1-one	分子量：397.4 密度：N/A 沸点：N/A 熔点：N/A	1324059-98-4	C₂₀H₂₃N₅O₄
C12H9ClN4O3S	C12H9ClN4O3S	分子量：324.74 密度：N/A 沸点：N/A 熔点：N/A	1324064-97-2	C₁₂H₉ClN₄O₃S
N-(1-methyl-1H-pyrazol-4-yl)-1-oxo-2-(propan-2-yl)-1,2-dihydroisoquinoline-4-carboxamide	N-(1-methyl-1H-pyrazol-4-yl)-1-oxo-2-(propan-2-yl)-1,2-dihydroisoquinoline-4-carboxamide	分子量：310.35 密度：N/A 沸点：N/A 熔点：N/A	1324074-56-7	C₁₇H₁₈N₄O₂
2-(3-(4-benzylpiperidin-1-yl)-6-oxopyridazin-1(6H)-yl)-N-(4-chlorophenyl)acetamide	2-(3-(4-benzylpiperidin-1-yl)-6-oxopyridazin-1(6H)-yl)-N-(4-chlorophenyl)acetamide	分子量：436.9 密度：N/A 沸点：N/A 熔点：N/A	1324095-97-7	C₂₄H₂₅ClN₄O₂
2-[2-oxo-2-(3-oxopiperazin-1-yl)ethyl]-6-(thiomorpholin-4-yl)pyridazin-3(2H)-one	2-[2-oxo-2-(3-oxopiperazin-1-yl)ethyl]-6-(thiomorpholin-4-yl)pyridazin-3(2H)-one	分子量：337.40 密度：N/A 沸点：N/A 熔点：N/A	1324092-49-0	C₁₄H₁₉N₅O₃S
N-[2-(5-chloro-1H-indol-3-yl)ethyl]-4-(6-methoxy[1,2,4]triazolo[4,3-b]pyridazin-3-yl)butanamide	N-[2-(5-chloro-1H-indol-3-yl)ethyl]-4-(6-methoxy[1,2,4]triazolo[4,3-b]pyridazin-3-yl)butanamide	分子量：412.9 密度：N/A 沸点：N/A 熔点：N/A	1324080-25-2	C₂₀H₂₁ClN₆O₂
N-(4-(tert-butyl)thiazol-2-yl)-4-phenyltetrahydro-2H-pyran-4-carboxamide	N-(4-(tert-butyl)thiazol-2-yl)-4-phenyltetrahydro-2H-pyran-4-carboxamide	分子量：344.5 密度：N/A 沸点：N/A 熔点：N/A	1324072-30-1	C₁₉H₂₄N₂O₂S
4-{[4-(6-Methoxy[1,2,4]triazolo[4,3-b]pyridazin-3-yl)butanoyl]amino}benzamide	4-{[4-(6-Methoxy[1,2,4]triazolo[4,3-b]pyridazin-3-yl)butanoyl]amino}benzamide	分子量：354.4 密度：N/A 沸点：N/A 熔点：N/A	1324098-66-9	C₁₇H₁₈N₆O₃
N-[2-(1H-indol-1-yl)ethyl]-2-(6-oxo-3-phenylpyridazin-1(6H)-yl)acetamide	N-[2-(1H-indol-1-yl)ethyl]-2-(6-oxo-3-phenylpyridazin-1(6H)-yl)acetamide	分子量：372.4 密度：N/A 沸点：N/A 熔点：N/A	1324060-01-6	C₂₂H₂₀N₄O₂
N-[1-(2-methoxyethyl)-1H-indol-4-yl]-2-(2-phenyl-1,3-thiazol-4-yl)acetamide	N-[1-(2-methoxyethyl)-1H-indol-4-yl]-2-(2-phenyl-1,3-thiazol-4-yl)acetamide	分子量：391.5 密度：N/A 沸点：N/A 熔点：N/A	1324064-75-6	C₂₂H₂₁N₃O₂S
methyl N-[(3-benzyl-4-oxo-3,4-dihydrophthalazin-1-yl)acetyl]glycinate	methyl N-[(3-benzyl-4-oxo-3,4-dihydrophthalazin-1-yl)acetyl]glycinate	分子量：365.4 密度：N/A 沸点：N/A 熔点：N/A	1324060-06-1	C₂₀H₁₉N₃O₄
N-(bicyclo[2.2.1]hept-5-en-2-ylmethyl)-2-(1-methyl-2,4-dioxo-1,3-diazaspiro[4.5]dec-3-yl)acetamide	N-(bicyclo[2.2.1]hept-5-en-2-ylmethyl)-2-(1-methyl-2,4-dioxo-1,3-diazaspiro[4.5]dec-3-yl)acetamide	分子量：345.4 密度：N/A 沸点：N/A 熔点：N/A	1324074-70-5	C₁₉H₂₇N₃O₃
N-[2-(5-chloro-1H-indol-3-yl)ethyl]-3-(6,8-dimethyl[1,2,4]triazolo[4,3-b]pyridazin-7-yl)propanamide	N-[2-(5-chloro-1H-indol-3-yl)ethyl]-3-(6,8-dimethyl[1,2,4]triazolo[4,3-b]pyridazin-7-yl)propanamide	分子量：396.9 密度：N/A 沸点：N/A 熔点：N/A	1324093-38-0	C₂₀H₂₁ClN₆O
2-(3-(4-benzylpiperidin-1-yl)-6-oxopyridazin-1(6H)-yl)-N-(3-chlorophenyl)acetamide	2-(3-(4-benzylpiperidin-1-yl)-6-oxopyridazin-1(6H)-yl)-N-(3-chlorophenyl)acetamide	分子量：436.9 密度：N/A 沸点：N/A 熔点：N/A	1324080-42-3	C₂₄H₂₅ClN₄O₂
3-(6,8-dimethyl-[1,2,4]triazolo[4,3-b]pyridazin-7-yl)-N-(5-(tetrahydrofuran-2-yl)-1,3,4-thiadiazol-2-yl)propanamide	3-(6,8-dimethyl-[1,2,4]triazolo[4,3-b]pyridazin-7-yl)-N-(5-(tetrahydrofuran-2-yl)-1,3,4-thiadiazol-2-yl)propanamide	分子量：373.4 密度：N/A 沸点：N/A 熔点：N/A	1324067-83-5	C₁₆H₁₉N₇O₂S
N-(6-methoxypyridin-3-yl)-1-oxo-2-phenyl-1,2-dihydroisoquinoline-4-carboxamide	N-(6-methoxypyridin-3-yl)-1-oxo-2-phenyl-1,2-dihydroisoquinoline-4-carboxamide	分子量：371.4 密度：N/A 沸点：N/A 熔点：N/A	1324096-03-8	C₂₂H₁₇N₃O₃