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
3,5-Difluoro-4-(trimethylsilyl)benzoic acid	3,5-Difluoro-4-(trimethylsilyl)benzoic acid	分子量：230.28 密度：N/A 沸点：N/A 熔点：N/A	872545-56-7	C₁₀H₁₂F₂O₂Si
N-(4-cyano-2-nitrophenyl)methanesulfonamide	N-(4-cyano-2-nitrophenyl)methanesulfonamide	分子量：241.23 密度：N/A 沸点：N/A 熔点：N/A	401909-80-6	C₈H₇N₃O₄S
Methyl 2-(4-(1,4-dihydroxybutyl)phenyl)-2-methylpropionate	Methyl 2-(4-(1,4-dihydroxybutyl)phenyl)-2-methylpropionate	分子量：266.33 密度：N/A 沸点：N/A 熔点：N/A	695165-49-2	C₁₅H₂₂O₄
2-(3-Fluoropyridin-4-yl)-6,7-dihydro-1H-pyrrolo[3,2-c]pyridin-4(5H)-one	2-(3-Fluoropyridin-4-yl)-6,7-dihydro-1H-pyrrolo[3,2-c]pyridin-4(5H)-one	分子量：231.23 密度：N/A 沸点：N/A 熔点：N/A	845713-98-6	C₁₂H₁₀FN₃O
N-Nitroso Clonidine	N-Nitroso Clonidine	分子量：259.09 密度：N/A 沸点：N/A 熔点：N/A	148950-49-6	C₉H₈Cl₂N₄O
N4-(3-methylphenyl)-1-phenyl-N6-(2-phenylethyl)-1H-pyrazolo[3,4-d]pyrimidine-4,6-diamine	N4-(3-methylphenyl)-1-phenyl-N6-(2-phenylethyl)-1H-pyrazolo[3,4-d]pyrimidine-4,6-diamine	分子量：420.5 密度：N/A 沸点：N/A 熔点：N/A	946321-26-2	C₂₆H₂₄N₆
3-({4-[(3-methylphenyl)amino]-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-6-yl}amino)propan-1-ol	3-({4-[(3-methylphenyl)amino]-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-6-yl}amino)propan-1-ol	分子量：374.4 密度：N/A 沸点：N/A 熔点：N/A	946265-45-8	C₂₁H₂₂N₆O
(E)-5-(4-hydroxy-3-methoxy-phenyl)-1-(1-piperidyl)pent-2-en-1-one	(E)-5-(4-hydroxy-3-methoxy-phenyl)-1-(1-piperidyl)pent-2-en-1-one	分子量：289.4 密度：N/A 沸点：N/A 熔点：N/A	77795-17-6	C₁₇H₂₃NO₃
N6,N6-diethyl-N4-(3-fluorophenyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine-4,6-diamine	N6,N6-diethyl-N4-(3-fluorophenyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine-4,6-diamine	分子量：376.4 密度：N/A 沸点：N/A 熔点：N/A	955337-28-7	C₂₁H₂₁FN₆
N~4~-(3-fluorophenyl)-N~6~-(2-methylpropyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine-4,6-diamine	N~4~-(3-fluorophenyl)-N~6~-(2-methylpropyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine-4,6-diamine	分子量：376.4 密度：N/A 沸点：N/A 熔点：N/A	955304-77-5	C₂₁H₂₁FN₆
N-(3,4-dimethylphenyl)-6-(4-methylpiperazin-1-yl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine	N-(3,4-dimethylphenyl)-6-(4-methylpiperazin-1-yl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine	分子量：413.5 密度：N/A 沸点：N/A 熔点：N/A	946288-17-1	C₂₄H₂₇N₇
5-{[(3Z)-5-(carbamoylamino)-2-oxo-2,3-dihydro-1H-indol-3-ylidene]methyl}-N-[2-(dimethylamino)ethyl]-1H-pyrrole-3-carboxamide	5-{[(3Z)-5-(carbamoylamino)-2-oxo-2,3-dihydro-1H-indol-3-ylidene]methyl}-N-[2-(dimethylamino)ethyl]-1H-pyrrole-3-carboxamide	分子量：382.4 密度：N/A 沸点：N/A 熔点：N/A	1056224-81-7	C₁₉H₂₂N₆O₃
2-[{4-[(3,4-dimethylphenyl)amino]-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-6-yl}(ethyl)amino]ethanol	2-[{4-[(3,4-dimethylphenyl)amino]-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-6-yl}(ethyl)amino]ethanol	分子量：402.5 密度：N/A 沸点：N/A 熔点：N/A	955304-83-3	C₂₃H₂₆N₆O
N~6~-(2-chlorobenzyl)-N~4~-(3-methoxyphenyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine-4,6-diamine	N~6~-(2-chlorobenzyl)-N~4~-(3-methoxyphenyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine-4,6-diamine	分子量：456.9 密度：N/A 沸点：N/A 熔点：N/A	955304-93-5	C₂₅H₂₁ClN₆O
6-[4-(4-fluorophenyl)piperazin-1-yl]-N-(3-methoxyphenyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine	6-[4-(4-fluorophenyl)piperazin-1-yl]-N-(3-methoxyphenyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine	分子量：495.5 密度：N/A 沸点：N/A 熔点：N/A	946297-94-5	C₂₈H₂₆FN₇O
(E)-3-(2-tert-Butoxycarbonylamino-4-chlorophenyl)-acrylic acid	(E)-3-(2-tert-Butoxycarbonylamino-4-chlorophenyl)-acrylic acid	分子量：297.73 密度：N/A 沸点：N/A 熔点：N/A	685534-22-9	C₁₄H₁₆ClNO₄
1-[2-(2,2-Difluoroethoxy)phenyl]methanamine	1-[2-(2,2-Difluoroethoxy)phenyl]methanamine	分子量：187.19 密度：N/A 沸点：N/A 熔点：N/A	937602-97-6	C₉H₁₁F₂NO
2-Chloro-4-phenylpyrimidine-5-carbonyl chloride	2-Chloro-4-phenylpyrimidine-5-carbonyl chloride	分子量：253.08 密度：N/A 沸点：N/A 熔点：N/A	188781-14-8	C₁₁H₆Cl₂N₂O
Tert-butyl 4-(2-formyl-4-methylphenyl)piperazine-1-carboxylate	Tert-butyl 4-(2-formyl-4-methylphenyl)piperazine-1-carboxylate	分子量：304.4 密度：N/A 沸点：N/A 熔点：N/A	851753-68-9	C₁₇H₂₄N₂O₃
Benzyl (S)-(1,3-dihydroxy-3-methylbutan-2-yl)carbamate	Benzyl (S)-(1,3-dihydroxy-3-methylbutan-2-yl)carbamate	分子量：253.29 密度：N/A 沸点：N/A 熔点：N/A	174741-42-5	C₁₃H₁₉NO₄
tert-butyl 4-(5-chloro-1H-1,2,3-benzotriazol-1-yl)piperidine-1-carboxylate	tert-butyl 4-(5-chloro-1H-1,2,3-benzotriazol-1-yl)piperidine-1-carboxylate	分子量：336.81 密度：N/A 沸点：N/A 熔点：N/A	830331-25-4	C₁₆H₂₁ClN₄O₂
Methyl 1-[[2-(trimethylsilyl)ethoxy]methyl]-1H-indole-3-carboxylate	Methyl 1-[[2-(trimethylsilyl)ethoxy]methyl]-1H-indole-3-carboxylate	分子量：305.44 密度：N/A 沸点：N/A 熔点：N/A	188307-18-8	C₁₆H₂₃NO₃Si
N~4~-(4-ethoxyphenyl)-1-phenyl-N~6~-(pyridin-3-ylmethyl)-1H-pyrazolo[3,4-d]pyrimidine-4,6-diamine	N~4~-(4-ethoxyphenyl)-1-phenyl-N~6~-(pyridin-3-ylmethyl)-1H-pyrazolo[3,4-d]pyrimidine-4,6-diamine	分子量：437.5 密度：N/A 沸点：N/A 熔点：N/A	955305-09-6	C₂₅H₂₃N₇O
2-Methoxy-4-{[(1-propyl-1H-pyrazol-3-YL)amino]methyl}phenol	2-Methoxy-4-{[(1-propyl-1H-pyrazol-3-YL)amino]methyl}phenol	分子量：261.32 密度：N/A 沸点：N/A 熔点：N/A	1856036-59-3	C₁₄H₁₉N₃O₂
(4-Chloro-3-nitrophenyl)methyl 4-methylbenzene-1-sulfonate	(4-Chloro-3-nitrophenyl)methyl 4-methylbenzene-1-sulfonate	分子量：341.8 密度：N/A 沸点：N/A 熔点：N/A	1026082-25-6	C₁₄H₁₂ClNO₅S
7-(Phenylmethyl)-7-azaspiro[3.5]nonane-2-carbonitrile	7-(Phenylmethyl)-7-azaspiro[3.5]nonane-2-carbonitrile	分子量：240.34 密度：N/A 沸点：N/A 熔点：N/A	203662-68-4	C₁₆H₂₀N₂
Ethyl 4-amino-2-(4-phenylpiperazin-1-yl)-1,3-thiazole-5-carboxylate	Ethyl 4-amino-2-(4-phenylpiperazin-1-yl)-1,3-thiazole-5-carboxylate	分子量：332.4 密度：N/A 沸点：N/A 熔点：N/A	871558-59-7	C₁₆H₂₀N₄O₂S
Methyl 4-O-coumaroylquinate	Methyl 4-O-coumaroylquinate	分子量：352.3 密度：N/A 沸点：N/A 熔点：N/A	864467-51-6	C₁₇H₂₀O₈
4-[3-Nitro-4-(thiomorpholin-4-yl)phenyl]-1,2-dihydrophthalazin-1-one	4-[3-Nitro-4-(thiomorpholin-4-yl)phenyl]-1,2-dihydrophthalazin-1-one	分子量：368.4 密度：N/A 沸点：N/A 熔点：N/A	882000-39-7	C₁₈H₁₆N₄O₃S
isopropyl 4-(hydroxymethyl)-3,5-dinitro-benzoate	isopropyl 4-(hydroxymethyl)-3,5-dinitro-benzoate	分子量：284.22 密度：N/A 沸点：N/A 熔点：N/A	171809-17-9	C₁₁H₁₂N₂O₇
2,7-Dibenzoylfluorene	2,7-Dibenzoylfluorene	分子量：374.4 密度：N/A 沸点：N/A 熔点：N/A	69690-47-7	C₂₇H₁₈O₂
5-Oxo-2-phenoxythiocarbonyl-2,5-dihydro-isoxazole-4-carboxylic acid ethyl ester	5-Oxo-2-phenoxythiocarbonyl-2,5-dihydro-isoxazole-4-carboxylic acid ethyl ester	分子量：293.30 密度：N/A 沸点：N/A 熔点：N/A	197582-13-1	C₁₃H₁₁NO₅S
5-Amino-1-(4-fluorophenyl)-4-[3-(3-morpholin-4-ylpropyl)benzoyl]pyrazole	5-Amino-1-(4-fluorophenyl)-4-[3-(3-morpholin-4-ylpropyl)benzoyl]pyrazole	分子量：408.5 密度：N/A 沸点：N/A 熔点：N/A	249937-49-3	C₂₃H₂₅FN₄O₂
4-[3-Nitro-4-(4-phenylpiperazin-1-yl)phenyl]-1,2-dihydrophthalazin-1-one	4-[3-Nitro-4-(4-phenylpiperazin-1-yl)phenyl]-1,2-dihydrophthalazin-1-one	分子量：427.5 密度：N/A 沸点：N/A 熔点：N/A	882000-44-4	C₂₄H₂₁N₅O₃
Ethyl 1-acetyl-4-methyl-3-oxo-2-piperazineacetate	Ethyl 1-acetyl-4-methyl-3-oxo-2-piperazineacetate	分子量：242.27 密度：N/A 沸点：N/A 熔点：N/A	104143-62-6	C₁₁H₁₈N₂O₄
4-[3-Chloro-2,5-dihydro-2,5-dioxo-4-(1-piperidinyl)-1H-pyrrol-1-yl]-N-2-pyridinylbenzenesulfonamide	4-[3-Chloro-2,5-dihydro-2,5-dioxo-4-(1-piperidinyl)-1H-pyrrol-1-yl]-N-2-pyridinylbenzenesulfonamide	分子量：446.9 密度：N/A 沸点：N/A 熔点：N/A	769140-84-3	C₂₀H₁₉ClN₄O₄S
4,4 Dipropylcyclohexane 1,1-diacetic acid	4,4 Dipropylcyclohexane 1,1-diacetic acid	分子量：284.39 密度：N/A 沸点：N/A 熔点：N/A	123018-68-8	C₁₆H₂₈O₄
I(2)-[(7-Chloro-4-quinolinyl)amino]benzeneethanol	I(2)-[(7-Chloro-4-quinolinyl)amino]benzeneethanol	分子量：298.8 密度：N/A 沸点：N/A 熔点：N/A	116289-26-0	C₁₇H₁₅ClN₂O
Methyl 5-chloro-thiophene-2-carboxylic acid	Methyl 5-chloro-thiophene-2-carboxylic acid	分子量：176.62 密度：N/A 沸点：N/A 熔点：N/A	91505-28-1	C₆H₅ClO₂S
N6-benzyl-N4-(4-chlorophenyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine-4,6-diamine	N6-benzyl-N4-(4-chlorophenyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine-4,6-diamine	分子量：426.9 密度：N/A 沸点：N/A 熔点：N/A	946289-04-9	C₂₄H₁₉ClN₆
3-amino-4-(cyclobutylamino)benzoic Acid	3-amino-4-(cyclobutylamino)benzoic Acid	分子量：206.24 密度：N/A 沸点：N/A 熔点：N/A	879558-10-8	C₁₁H₁₄N₂O₂
N~4~-(4-chlorophenyl)-1-phenyl-N~6~-(pyridin-3-ylmethyl)-1H-pyrazolo[3,4-d]pyrimidine-4,6-diamine	N~4~-(4-chlorophenyl)-1-phenyl-N~6~-(pyridin-3-ylmethyl)-1H-pyrazolo[3,4-d]pyrimidine-4,6-diamine	分子量：427.9 密度：N/A 沸点：N/A 熔点：N/A	946296-75-9	C₂₃H₁₈ClN₇
N4-(4-chlorophenyl)-N6-cycloheptyl-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine-4,6-diamine	N4-(4-chlorophenyl)-N6-cycloheptyl-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine-4,6-diamine	分子量：432.9 密度：N/A 沸点：N/A 熔点：N/A	946348-56-7	C₂₄H₂₅ClN₆
N-tert-butyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-2-carboxamide	N-tert-butyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-2-carboxamide	分子量：309.2 密度：N/A 沸点：N/A 熔点：N/A	632325-52-1	C₁₅H₂₄BNO₃S
N~4~-(4-chlorophenyl)-N~6~-(2-methylpropyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine-4,6-diamine	N~4~-(4-chlorophenyl)-N~6~-(2-methylpropyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine-4,6-diamine	分子量：392.9 密度：N/A 沸点：N/A 熔点：N/A	946289-16-3	C₂₁H₂₁ClN₆
(1-methyl-1H-indol-5-yl)-(2,2,6,6-tetramethylpiperidin-4-yl)amine	(1-methyl-1H-indol-5-yl)-(2,2,6,6-tetramethylpiperidin-4-yl)amine	分子量：285.4 密度：N/A 沸点：N/A 熔点：N/A	872044-36-5	C₁₈H₂₇N₃
7-Chloro-1,2,3,4-tetrahydro-1-methyl-1-phenylisoquinoline	7-Chloro-1,2,3,4-tetrahydro-1-methyl-1-phenylisoquinoline	分子量：257.76 密度：N/A 沸点：N/A 熔点：N/A	788122-82-7	C₁₆H₁₆ClN
9-Hydroxy-3-(6-hydroxy-5,5-dimethylhexyl)-8,8-dimethylnonan-2-one	9-Hydroxy-3-(6-hydroxy-5,5-dimethylhexyl)-8,8-dimethylnonan-2-one	分子量：314.5 密度：N/A 沸点：N/A 熔点：N/A	413628-02-1	C₁₉H₃₈O₃
3-Bromo-4,4-dimethylpentan-2-one	3-Bromo-4,4-dimethylpentan-2-one	分子量：193.08 密度：N/A 沸点：N/A 熔点：N/A	4957-78-2	C₇H₁₃BrO
3-(4-Chloro-1H-pyrrolo[2,3-b]pyridin-2-yl)-5,6-dimethoxy-1-methyl-1H-pyrrolo[3,2-b]pyridine	3-(4-Chloro-1H-pyrrolo[2,3-b]pyridin-2-yl)-5,6-dimethoxy-1-methyl-1H-pyrrolo[3,2-b]pyridine	分子量：342.8 密度：N/A 沸点：N/A 熔点：N/A	882033-46-7	C₁₇H₁₅ClN₄O₂