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-(4-Methoxybenzyl)-5-(1-(phenylsulfonyl)piperidin-4-yl)-1,3,4-thiadiazole	2-(4-Methoxybenzyl)-5-(1-(phenylsulfonyl)piperidin-4-yl)-1,3,4-thiadiazole	分子量：429.6 密度：N/A 沸点：N/A 熔点：N/A	1170458-16-8	C₂₁H₂₃N₃O₃S₂
3-Acetyl-8-fluoroquinolin-4(1H)-one	3-Acetyl-8-fluoroquinolin-4(1H)-one	分子量：205.18 密度：N/A 沸点：N/A 熔点：N/A	1023294-06-5	C₁₁H₈FNO₂
2-(1-(Ethylsulfonyl)piperidin-4-yl)-5-(4-methoxybenzyl)-1,3,4-thiadiazole	2-(1-(Ethylsulfonyl)piperidin-4-yl)-5-(4-methoxybenzyl)-1,3,4-thiadiazole	分子量：381.5 密度：N/A 沸点：N/A 熔点：N/A	1172837-19-2	C₁₇H₂₃N₃O₃S₂
6-chloro-N-(4-methoxyphenyl)imidazo[1,2-a]pyridine-2-carboxamide	6-chloro-N-(4-methoxyphenyl)imidazo[1,2-a]pyridine-2-carboxamide	分子量：301.73 密度：N/A 沸点：N/A 熔点：N/A	1010882-07-1	C₁₅H₁₂ClN₃O₂
1-(3,4-Difluorobenzoyl)piperidin-3-ol	1-(3,4-Difluorobenzoyl)piperidin-3-ol	分子量：241.23 密度：N/A 沸点：N/A 熔点：N/A	1154913-75-3	C₁₂H₁₃F₂NO₂
Ethyl (2-hydroxyethoxy)acetate	Ethyl (2-hydroxyethoxy)acetate	分子量：148.16 密度：N/A 沸点：N/A 熔点：N/A	194870-76-3	C₆H₁₂O₄
N,N-dimethyl-4-(3-(5-methyl-1,3,4-thiadiazol-2-yl)piperidine-1-carbonyl)benzenesulfonamide	N,N-dimethyl-4-(3-(5-methyl-1,3,4-thiadiazol-2-yl)piperidine-1-carbonyl)benzenesulfonamide	分子量：394.5 密度：N/A 沸点：N/A 熔点：N/A	1172547-25-9	C₁₇H₂₂N₄O₃S₂
(4-Chlorophenyl)(3-(5-methyl-1,3,4-thiadiazol-2-yl)piperidin-1-yl)methanone	(4-Chlorophenyl)(3-(5-methyl-1,3,4-thiadiazol-2-yl)piperidin-1-yl)methanone	分子量：321.8 密度：N/A 沸点：N/A 熔点：N/A	1173084-84-8	C₁₅H₁₆ClN₃OS
Cyclohexyl(3-(5-methyl-1,3,4-thiadiazol-2-yl)piperidin-1-yl)methanone	Cyclohexyl(3-(5-methyl-1,3,4-thiadiazol-2-yl)piperidin-1-yl)methanone	分子量：293.4 密度：N/A 沸点：N/A 熔点：N/A	1170897-66-1	C₁₅H₂₃N₃OS
(1S)-1-(3,4-Dimethoxyphenyl)-1,2-ethanediol	(1S)-1-(3,4-Dimethoxyphenyl)-1,2-ethanediol	分子量：198.22 密度：N/A 沸点：N/A 熔点：N/A	326491-80-9	C₁₀H₁₄O₄
1-(3-Hydroxypiperidin-1-yl)-2-(4-methylphenyl)ethan-1-one	1-(3-Hydroxypiperidin-1-yl)-2-(4-methylphenyl)ethan-1-one	分子量：233.31 密度：N/A 沸点：N/A 熔点：N/A	1156146-10-9	C₁₄H₁₉NO₂
(3,4-Difluorophenyl)(3-(5-methyl-1,3,4-thiadiazol-2-yl)piperidin-1-yl)methanone	(3,4-Difluorophenyl)(3-(5-methyl-1,3,4-thiadiazol-2-yl)piperidin-1-yl)methanone	分子量：323.4 密度：N/A 沸点：N/A 熔点：N/A	1105228-93-0	C₁₅H₁₅F₂N₃OS
(2-Fluorophenyl)(3-(5-methyl-1,3,4-thiadiazol-2-yl)piperidin-1-yl)methanone	(2-Fluorophenyl)(3-(5-methyl-1,3,4-thiadiazol-2-yl)piperidin-1-yl)methanone	分子量：305.4 密度：N/A 沸点：N/A 熔点：N/A	1105202-29-6	C₁₅H₁₆FN₃OS
1-(3-(5-Methyl-1,3,4-thiadiazol-2-yl)piperidin-1-yl)-2-phenoxyethanone	1-(3-(5-Methyl-1,3,4-thiadiazol-2-yl)piperidin-1-yl)-2-phenoxyethanone	分子量：317.4 密度：N/A 沸点：N/A 熔点：N/A	1105229-00-2	C₁₆H₁₉N₃O₂S
4-(3-(5-(2-fluorophenyl)-1,3,4-thiadiazol-2-yl)piperidine-1-carbonyl)-N,N-dimethylbenzenesulfonamide	4-(3-(5-(2-fluorophenyl)-1,3,4-thiadiazol-2-yl)piperidine-1-carbonyl)-N,N-dimethylbenzenesulfonamide	分子量：474.6 密度：N/A 沸点：N/A 熔点：N/A	1170794-34-9	C₂₂H₂₃FN₄O₃S₂
(R)-1-Methyl-2-phenoxymethyl-pyrrolidine	(R)-1-Methyl-2-phenoxymethyl-pyrrolidine	分子量：191.27 密度：N/A 沸点：N/A 熔点：N/A	182323-70-2	C₁₂H₁₇NO
6-Bromo-7-nitro-2H-benzo[b][1,4]oxazin-3(4H)-one	6-Bromo-7-nitro-2H-benzo[b][1,4]oxazin-3(4H)-one	分子量：273.04 密度：N/A 沸点：N/A 熔点：N/A	1154917-10-8	C₈H₅BrN₂O₄
1-benzyl-N-methyl-2-oxo-N-phenyl-1,2-dihydro-1,8-naphthyridine-3-carboxamide	1-benzyl-N-methyl-2-oxo-N-phenyl-1,2-dihydro-1,8-naphthyridine-3-carboxamide	分子量：369.4 密度：N/A 沸点：N/A 熔点：N/A	946232-71-9	C₂₃H₁₉N₃O₂
Pyrazine, 2-bromo-6-(3-methylphenyl)-	Pyrazine, 2-bromo-6-(3-methylphenyl)-	分子量：249.11 密度：N/A 沸点：N/A 熔点：N/A	1086383-08-5	C₁₁H₉BrN₂
N-(2-aminophenyl)-1,1,1-trifluoromethanesulfonamide	N-(2-aminophenyl)-1,1,1-trifluoromethanesulfonamide	分子量：240.21 密度：N/A 沸点：N/A 熔点：N/A	53718-45-9	C₇H₇F₃N₂O₂S
propan-2-yl [3-(4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]acetate	propan-2-yl [3-(4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]acetate	分子量：302.32 密度：N/A 沸点：N/A 熔点：N/A	1219568-57-6	C₁₆H₁₈N₂O₄
N-(2-fluorobenzyl)-2-(1H-tetrazol-1-yl)-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxamide	N-(2-fluorobenzyl)-2-(1H-tetrazol-1-yl)-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxamide	分子量：343.4 密度：N/A 沸点：N/A 熔点：N/A	1219555-34-6	C₁₆H₁₄FN₅OS
N-(3,3-diphenylpropyl)-2-[3-(2-fluorophenyl)-6-oxo-1(6H)-pyridazinyl]acetamide	N-(3,3-diphenylpropyl)-2-[3-(2-fluorophenyl)-6-oxo-1(6H)-pyridazinyl]acetamide	分子量：441.5 密度：N/A 沸点：N/A 熔点：N/A	1219562-23-8	C₂₇H₂₄FN₃O₂
N-(4-butylphenyl)-1,5-dioxo-2,3,4,5-tetrahydropyrrolo[1,2-a]quinazoline-3a(1H)-carboxamide	N-(4-butylphenyl)-1,5-dioxo-2,3,4,5-tetrahydropyrrolo[1,2-a]quinazoline-3a(1H)-carboxamide	分子量：377.4 密度：N/A 沸点：N/A 熔点：N/A	1236263-68-5	C₂₂H₂₃N₃O₃
methyl 4-methyl-3-({[4-(pyridin-3-yl)-1,4,6,7-tetrahydro-5H-imidazo[4,5-c]pyridin-5-yl]carbonyl}amino)benzoate	methyl 4-methyl-3-({[4-(pyridin-3-yl)-1,4,6,7-tetrahydro-5H-imidazo[4,5-c]pyridin-5-yl]carbonyl}amino)benzoate	分子量：391.4 密度：N/A 沸点：N/A 熔点：N/A	1219569-77-3	C₂₁H₂₁N₅O₃
N-(2-methylpropyl)-2-(2,3,5,9-tetramethyl-7-oxo-7H-furo[3,2-g]chromen-6-yl)acetamide	N-(2-methylpropyl)-2-(2,3,5,9-tetramethyl-7-oxo-7H-furo[3,2-g]chromen-6-yl)acetamide	分子量：355.4 密度：N/A 沸点：N/A 熔点：N/A	1219545-77-3	C₂₁H₂₅NO₄
4-isopropyl-1,5-dioxo-N-(3,4,5-trimethoxyphenyl)-2,3,4,5-tetrahydropyrrolo[1,2-a]quinazoline-3a(1H)-carboxamide	4-isopropyl-1,5-dioxo-N-(3,4,5-trimethoxyphenyl)-2,3,4,5-tetrahydropyrrolo[1,2-a]quinazoline-3a(1H)-carboxamide	分子量：453.5 密度：N/A 沸点：N/A 熔点：N/A	1236263-69-6	C₂₄H₂₇N₃O₆
N-[2-(5-chloro-1H-indol-3-yl)ethyl]-2-(1H-indol-1-yl)acetamide	N-[2-(5-chloro-1H-indol-3-yl)ethyl]-2-(1H-indol-1-yl)acetamide	分子量：351.8 密度：N/A 沸点：N/A 熔点：N/A	1219570-09-8	C₂₀H₁₈ClN₃O
1-((3AS,6aS)-hexahydropyrrolo[3,4-b]pyrrol-5(1H)-yl)ethan-1-one	1-((3AS,6aS)-hexahydropyrrolo[3,4-b]pyrrol-5(1H)-yl)ethan-1-one	分子量：154.21 密度：N/A 沸点：N/A 熔点：N/A	1932287-32-5	C₈H₁₄N₂O
methyl 6-(4-(4-methoxyphenyl)-4,5,6,7-tetrahydro-3H-imidazo[4,5-c]pyridine-5-carboxamido)hexanoate	methyl 6-(4-(4-methoxyphenyl)-4,5,6,7-tetrahydro-3H-imidazo[4,5-c]pyridine-5-carboxamido)hexanoate	分子量：400.5 密度：N/A 沸点：N/A 熔点：N/A	1219588-48-3	C₂₁H₂₈N₄O₄
4-{[3-(4-bromo-1H-indol-1-yl)propanoyl]amino}butanoic acid	4-{[3-(4-bromo-1H-indol-1-yl)propanoyl]amino}butanoic acid	分子量：353.21 密度：N/A 沸点：N/A 熔点：N/A	1219555-46-0	C₁₅H₁₇BrN₂O₃
propyl 4-({[1,5-dioxo-2,3,4,5-tetrahydropyrrolo[1,2-a]quinazolin-3(1H)-yl]carbonyl}amino)benzoate	propyl 4-({[1,5-dioxo-2,3,4,5-tetrahydropyrrolo[1,2-a]quinazolin-3(1H)-yl]carbonyl}amino)benzoate	分子量：407.4 密度：N/A 沸点：N/A 熔点：N/A	1236260-86-8	C₂₂H₂₁N₃O₅
N-[(2-methyl-1H-indol-1-yl)acetyl]glycylglycine	N-[(2-methyl-1H-indol-1-yl)acetyl]glycylglycine	分子量：303.31 密度：N/A 沸点：N/A 熔点：N/A	1219545-10-4	C₁₅H₁₇N₃O₄
2-(6-bromo-1H-indol-1-yl)-N-[2-(1H-imidazol-4-yl)ethyl]acetamide	2-(6-bromo-1H-indol-1-yl)-N-[2-(1H-imidazol-4-yl)ethyl]acetamide	分子量：347.21 密度：N/A 沸点：N/A 熔点：N/A	1219561-48-4	C₁₅H₁₅BrN₄O
4-({3-[5-(benzyloxy)-1H-indol-1-yl]propanoyl}amino)butanoic acid	4-({3-[5-(benzyloxy)-1H-indol-1-yl]propanoyl}amino)butanoic acid	分子量：380.4 密度：N/A 沸点：N/A 熔点：N/A	1219562-71-6	C₂₂H₂₄N₂O₄
4-{[3-(4-methoxy-1H-indol-1-yl)propanoyl]amino}butanoic acid	4-{[3-(4-methoxy-1H-indol-1-yl)propanoyl]amino}butanoic acid	分子量：304.34 密度：N/A 沸点：N/A 熔点：N/A	1219577-40-8	C₁₆H₂₀N₂O₄
2-(4-aminopiperidin-1-yl)-N-(3-methylbutyl)acetamide	2-(4-aminopiperidin-1-yl)-N-(3-methylbutyl)acetamide	分子量：227.35 密度：N/A 沸点：N/A 熔点：N/A	1153252-57-3	C₁₂H₂₅N₃O
2-(4-Aminopiperidin-1-yl)-1-(4-methylpiperidin-1-yl)ethan-1-one	2-(4-Aminopiperidin-1-yl)-1-(4-methylpiperidin-1-yl)ethan-1-one	分子量：239.36 密度：N/A 沸点：N/A 熔点：N/A	1153135-51-3	C₁₃H₂₅N₃O
1,5-dioxo-N-(3,4,5-trimethoxyphenyl)-2,3,4,5-tetrahydropyrrolo[1,2-a]quinazoline-3a(1H)-carboxamide	1,5-dioxo-N-(3,4,5-trimethoxyphenyl)-2,3,4,5-tetrahydropyrrolo[1,2-a]quinazoline-3a(1H)-carboxamide	分子量：411.4 密度：N/A 沸点：N/A 熔点：N/A	1236256-92-0	C₂₁H₂₁N₃O₆
4-Chloro-2-(3-chlorophenyl)-6-phenylpyrimidine	4-Chloro-2-(3-chlorophenyl)-6-phenylpyrimidine	分子量：301.2 密度：N/A 沸点：N/A 熔点：N/A	1155152-53-6	C₁₆H₁₀Cl₂N₂
3-(3,4-dimethoxyphenyl)-N-[2-(1H-indol-3-yl)ethyl]-2-methyl-1-oxo-1,2,3,4-tetrahydroisoquinoline-4-carboxamide	3-(3,4-dimethoxyphenyl)-N-[2-(1H-indol-3-yl)ethyl]-2-methyl-1-oxo-1,2,3,4-tetrahydroisoquinoline-4-carboxamide	分子量：483.6 密度：N/A 沸点：N/A 熔点：N/A	1219584-87-8	C₂₉H₂₉N₃O₄
(S)-2-(4-aminophenyl)-7-methoxy-8-(5-((S)-7-methoxy-2-(4-methoxyphenyl)-5-oxo-5,11a-dihydro-1H-pyrrolo[2,1-c][1,4]benzodiazepine-8-yloxy)pentyloxy)-1H-pyrrolo[2,1-c][1,4]benzodiazepine-5(11aH)-one	(S)-2-(4-aminophenyl)-7-methoxy-8-(5-((S)-7-methoxy-2-(4-methoxyphenyl)-5-oxo-5,11a-dihydro-1H-pyrrolo[2,1-c][1,4]benzodiazepine-8-yloxy)pentyloxy)-1H-pyrrolo[2,1-c][1,4]benzodiazepine-5(11aH)-one	分子量：753.8 密度：N/A 沸点：N/A 熔点：N/A	1222490-37-0	C₄₄H₄₃N₅O₇
N-(2-chlorobenzyl)-3-(3-oxo-1,2-benzothiazol-2(3H)-yl)propanamide	N-(2-chlorobenzyl)-3-(3-oxo-1,2-benzothiazol-2(3H)-yl)propanamide	分子量：346.8 密度：N/A 沸点：N/A 熔点：N/A	1219588-31-4	C₁₇H₁₅ClN₂O₂S
N-[4-(2-hydroxyethyl)phenyl]-2-(2-phenyl-1H-indol-1-yl)acetamide	N-[4-(2-hydroxyethyl)phenyl]-2-(2-phenyl-1H-indol-1-yl)acetamide	分子量：370.4 密度：N/A 沸点：N/A 熔点：N/A	1219569-26-2	C₂₄H₂₂N₂O₂
N-(3-chloro-4-methoxyphenyl)-2-(3-(3,5-dimethyl-1H-pyrazol-1-yl)-6-oxopyridazin-1(6H)-yl)acetamide	N-(3-chloro-4-methoxyphenyl)-2-(3-(3,5-dimethyl-1H-pyrazol-1-yl)-6-oxopyridazin-1(6H)-yl)acetamide	分子量：387.8 密度：N/A 沸点：N/A 熔点：N/A	1219579-90-4	C₁₈H₁₈ClN₅O₃
methyl 3-({[4-(3-fluorophenyl)-1,4,6,7-tetrahydro-5H-imidazo[4,5-c]pyridin-5-yl]carbonyl}amino)-4-methylbenzoate	methyl 3-({[4-(3-fluorophenyl)-1,4,6,7-tetrahydro-5H-imidazo[4,5-c]pyridin-5-yl]carbonyl}amino)-4-methylbenzoate	分子量：408.4 密度：N/A 沸点：N/A 熔点：N/A	1219584-27-6	C₂₂H₂₁FN₄O₃
Sodium 1,1,1-trifluoro-4-(2-methylphenyl)-4-oxobut-2-en-2-olate	Sodium 1,1,1-trifluoro-4-(2-methylphenyl)-4-oxobut-2-en-2-olate	分子量：252.16 密度：N/A 沸点：N/A 熔点：N/A	1015534-16-3	C₁₁H₈F₃NaO₂
N-(3-Chlorobenzoyl)valine methyl ester	N-(3-Chlorobenzoyl)valine methyl ester	分子量：269.72 密度：N/A 沸点：N/A 熔点：N/A	205108-28-7	C₁₃H₁₆ClNO₃
N-(4-fluorophenyl)-5-hydroxy-1-oxo-2,3-dihydropyrrolo[1,2-a]quinazoline-3a(1H)-carboxamide	N-(4-fluorophenyl)-5-hydroxy-1-oxo-2,3-dihydropyrrolo[1,2-a]quinazoline-3a(1H)-carboxamide	分子量：339.3 密度：N/A 沸点：N/A 熔点：N/A	1236265-59-0	C₁₈H₁₄FN₃O₃
2-(2-{4-[(4-fluorophenyl)sulfonyl]-1-piperazinyl}-2-oxoethyl)-6-phenyl-3(2H)-pyridazinone	2-(2-{4-[(4-fluorophenyl)sulfonyl]-1-piperazinyl}-2-oxoethyl)-6-phenyl-3(2H)-pyridazinone	分子量：456.5 密度：N/A 沸点：N/A 熔点：N/A	1219538-90-5	C₂₂H₂₁FN₄O₄S