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-(1H-Imidazol-4-ylmethyl)-1,2-dihydropyrazin-2-one	3-(1H-Imidazol-4-ylmethyl)-1,2-dihydropyrazin-2-one	分子量：176.18 密度：N/A 沸点：N/A 熔点：N/A	1603249-14-4	C₈H₈N₄O
4-(2-Methoxynaphthalen-1-yl)but-3-en-2-one	4-(2-Methoxynaphthalen-1-yl)but-3-en-2-one	分子量：226.27 密度：N/A 沸点：N/A 熔点：N/A	36795-47-8	C₁₅H₁₄O₂
1-({4-[(Difluoromethyl)sulfanyl]phenyl}methyl)piperazine	1-({4-[(Difluoromethyl)sulfanyl]phenyl}methyl)piperazine	分子量：258.33 密度：N/A 沸点：N/A 熔点：N/A	1798390-25-6	C₁₂H₁₆F₂N₂S
3-(2-Bromoethoxy)-1,1,1,2,2-pentafluoropropane	3-(2-Bromoethoxy)-1,1,1,2,2-pentafluoropropane	分子量：257.00 密度：N/A 沸点：N/A 熔点：N/A	1565435-09-7	C₅H₆BrF₅O
5,6-dichloro-N-cyclohexyl-N-(prop-2-yn-1-yl)pyridine-3-carboxamide	5,6-dichloro-N-cyclohexyl-N-(prop-2-yn-1-yl)pyridine-3-carboxamide	分子量：311.2 密度：N/A 沸点：N/A 熔点：N/A	1797379-07-7	C₁₅H₁₆Cl₂N₂O
6-chloro-N-cyclohexyl-N-(prop-2-yn-1-yl)pyridine-3-carboxamide	6-chloro-N-cyclohexyl-N-(prop-2-yn-1-yl)pyridine-3-carboxamide	分子量：276.76 密度：N/A 沸点：N/A 熔点：N/A	1798004-42-8	C₁₅H₁₇ClN₂O
1-acetyl-N-(2,2-diethoxyethyl)azetidine-3-carboxamide	1-acetyl-N-(2,2-diethoxyethyl)azetidine-3-carboxamide	分子量：258.31 密度：N/A 沸点：N/A 熔点：N/A	1396873-17-8	C₁₂H₂₂N₂O₄
1-(Prop-2-yn-1-yl)-4-[2-(trifluoromethoxy)benzenesulfonyl]piperazine	1-(Prop-2-yn-1-yl)-4-[2-(trifluoromethoxy)benzenesulfonyl]piperazine	分子量：348.34 密度：N/A 沸点：N/A 熔点：N/A	1797959-23-9	C₁₄H₁₅F₃N₂O₃S
2-(Cyclohexylamino)-2-methylpropanoic acid hydrochloride	2-(Cyclohexylamino)-2-methylpropanoic acid hydrochloride	分子量：221.72 密度：N/A 沸点：N/A 熔点：N/A	1803605-05-1	C₁₀H₂₀ClNO₂
Methyl 2-(8-azabicyclo[3.2.1]octane-3-sulfonyl)acetate hydrochloride	Methyl 2-(8-azabicyclo[3.2.1]octane-3-sulfonyl)acetate hydrochloride	分子量：283.77 密度：N/A 沸点：N/A 熔点：N/A	1823268-55-8	C₁₀H₁₈ClNO₄S
3-amino-N-methanesulfonylpropanamide hydrochloride	3-amino-N-methanesulfonylpropanamide hydrochloride	分子量：202.66 密度：N/A 沸点：N/A 熔点：N/A	1795495-29-2	C₄H₁₁ClN₂O₃S
L-Seryl-L-lysyl-L-threonyl-L-tyrosine	L-Seryl-L-lysyl-L-threonyl-L-tyrosine	分子量：497.5 密度：N/A 沸点：N/A 熔点：N/A	219584-47-1	C₂₂H₃₅N₅O₈
N-Dodecyl-1,3-propanediamine monoacetate	N-Dodecyl-1,3-propanediamine monoacetate	分子量：302.5 密度：N/A 沸点：N/A 熔点：N/A	30715-11-8	C₁₇H₃₈N₂O₂
L-Isoleucyl-L-prolyl-L-leucyl-L-histidyl-L-lysine	L-Isoleucyl-L-prolyl-L-leucyl-L-histidyl-L-lysine	分子量：606.8 密度：N/A 沸点：N/A 熔点：N/A	206754-58-7	C₂₉H₅₀N₈O₆
5-Methylpyrrolidin-3-ol hydrochloride	5-Methylpyrrolidin-3-ol hydrochloride	分子量：137.61 密度：N/A 沸点：N/A 熔点：N/A	1803584-92-0	C₅H₁₂ClNO
N-(4-Aminophenyl)guanidine dihydrochloride	N-(4-Aminophenyl)guanidine dihydrochloride	分子量：223.10 密度：N/A 沸点：N/A 熔点：N/A	951323-36-7	C₇H₁₂Cl₂N₄
2-(Benzylsulfonylmethyl)pyrrolidine hydrochloride	2-(Benzylsulfonylmethyl)pyrrolidine hydrochloride	分子量：275.80 密度：N/A 沸点：N/A 熔点：N/A	1864064-58-3	C₁₂H₁₈ClNO₂S
2-{2-[(3-Chloro-4-fluorophenyl)(cyano)amino]ethoxy}ethan-1-ol	2-{2-[(3-Chloro-4-fluorophenyl)(cyano)amino]ethoxy}ethan-1-ol	分子量：258.67 密度：N/A 沸点：N/A 熔点：N/A	1424525-25-6	C₁₁H₁₂ClFN₂O₂
2-(6-chloro-9-methyl-9H-carbazol-2-yl)propanoic acid	2-(6-chloro-9-methyl-9H-carbazol-2-yl)propanoic acid	分子量：287.74 密度：N/A 沸点：N/A 熔点：N/A	52263-56-6	C₁₆H₁₄ClNO₂
5-(tert-Butoxycarbonyl)tetrahydrofuran-2-carboxylic acid	5-(tert-Butoxycarbonyl)tetrahydrofuran-2-carboxylic acid	分子量：216.23 密度：N/A 沸点：N/A 熔点：N/A	1823902-58-4	C₁₀H₁₆O₅
2,2',2''-(10-(2-((2-(2-Methyl-5-nitro-1H-imidazol-1-yl)ethyl)amino)-2-oxoethyl)-1,4,7,10-tetraazacyclododecane-1,4,7-triyl)triacetic acid	2,2',2''-(10-(2-((2-(2-Methyl-5-nitro-1H-imidazol-1-yl)ethyl)amino)-2-oxoethyl)-1,4,7,10-tetraazacyclododecane-1,4,7-triyl)triacetic acid	分子量：556.6 密度：N/A 沸点：N/A 熔点：N/A	1603808-42-9	C₂₂H₃₆N₈O₉
ethyl 3-(1-methyl-1H-imidazol-5-yl)-3-oxopropanoate	ethyl 3-(1-methyl-1H-imidazol-5-yl)-3-oxopropanoate	分子量：196.20 密度：N/A 沸点：N/A 熔点：N/A	1553338-06-9	C₉H₁₂N₂O₃
Methyl 5-(chlorosulfonyl)-3-oxo-2,3-dihydro-1H-isoindole-1-carboxylate	Methyl 5-(chlorosulfonyl)-3-oxo-2,3-dihydro-1H-isoindole-1-carboxylate	分子量：289.69 密度：N/A 沸点：N/A 熔点：N/A	1803566-90-6	C₁₀H₈ClNO₅S
Ethyl 2-(4-cyanophenyl)cyclopropane-1-carboxylate	Ethyl 2-(4-cyanophenyl)cyclopropane-1-carboxylate	分子量：215.25 密度：N/A 沸点：N/A 熔点：N/A	911795-79-4	C₁₃H₁₃NO₂
2-[4-(1-Methylpiperidin-4-yl)-2-propan-2-yloxyanilino]-7-[2-(trifluoromethoxy)phenyl]thieno[3,2-d]pyrimidine-6-carboxamide	2-[4-(1-Methylpiperidin-4-yl)-2-propan-2-yloxyanilino]-7-[2-(trifluoromethoxy)phenyl]thieno[3,2-d]pyrimidine-6-carboxamide	分子量：585.6 密度：N/A 沸点：N/A 熔点：N/A	1462947-78-9	C₂₉H₃₀F₃N₅O₃S
(3R,4R)-Benzyl 3-amino-4-methylpiperidine-1-carboxylate	(3R,4R)-Benzyl 3-amino-4-methylpiperidine-1-carboxylate	分子量：248.32 密度：N/A 沸点：N/A 熔点：N/A	1451068-71-5	C₁₄H₂₀N₂O₂
1-[(2-Chloro-6,7-dihydro-5-oxidothieno[3,2-d]pyrimidin-4-yl)amino]cyclobutanemethanol	1-[(2-Chloro-6,7-dihydro-5-oxidothieno[3,2-d]pyrimidin-4-yl)amino]cyclobutanemethanol	分子量：287.77 密度：N/A 沸点：N/A 熔点：N/A	1423719-38-3	C₁₁H₁₄ClN₃O₂S
2-(4-Methoxy-2-propan-2-yloxyanilino)-7-phenylthieno[3,2-d]pyrimidine-6-carboxamide	2-(4-Methoxy-2-propan-2-yloxyanilino)-7-phenylthieno[3,2-d]pyrimidine-6-carboxamide	分子量：434.5 密度：N/A 沸点：N/A 熔点：N/A	1462947-84-7	C₂₃H₂₂N₄O₃S
N-(6-methoxy-2,3,4,9-tetrahydro-1H-carbazol-1-yl)-1-methyl-1H-indole-4-carboxamide	N-(6-methoxy-2,3,4,9-tetrahydro-1H-carbazol-1-yl)-1-methyl-1H-indole-4-carboxamide	分子量：373.4 密度：N/A 沸点：N/A 熔点：N/A	1574359-84-4	C₂₃H₂₃N₃O₂
N-(6-methoxy-2,3,4,9-tetrahydro-1H-carbazol-1-yl)-2-[(4-oxo-1,2,3,4-tetrahydrocyclopenta[c]chromen-7-yl)oxy]acetamide	N-(6-methoxy-2,3,4,9-tetrahydro-1H-carbazol-1-yl)-2-[(4-oxo-1,2,3,4-tetrahydrocyclopenta[c]chromen-7-yl)oxy]acetamide	分子量：458.5 密度：N/A 沸点：N/A 熔点：N/A	1574359-97-9	C₂₇H₂₆N₂O₅
N-(5-(ethylthio)-1,3,4-thiadiazol-2-yl)-2-(3-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)acetamide oxalate	N-(5-(ethylthio)-1,3,4-thiadiazol-2-yl)-2-(3-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)acetamide oxalate	分子量：498.6 密度：N/A 沸点：N/A 熔点：N/A	1351612-41-3	C₁₇H₁₈N₆O₆S₃
N-(6-methoxy-2,3,4,9-tetrahydro-1H-carbazol-1-yl)-4-(1-methyl-1H-indol-3-yl)butanamide	N-(6-methoxy-2,3,4,9-tetrahydro-1H-carbazol-1-yl)-4-(1-methyl-1H-indol-3-yl)butanamide	分子量：415.5 密度：N/A 沸点：N/A 熔点：N/A	1574351-99-7	C₂₆H₂₉N₃O₂
3-(Thiophen-2-yl)-5-(1-(3-(trifluoromethyl)benzyl)azetidin-3-yl)-1,2,4-oxadiazole oxalate	3-(Thiophen-2-yl)-5-(1-(3-(trifluoromethyl)benzyl)azetidin-3-yl)-1,2,4-oxadiazole oxalate	分子量：455.4 密度：N/A 沸点：N/A 熔点：N/A	1351635-00-1	C₁₉H₁₆F₃N₃O₅S
(2R)-2-[(2-chloropyridin-3-yl)formamido]-3-(1H-indol-3-yl)propanoic acid	(2R)-2-[(2-chloropyridin-3-yl)formamido]-3-(1H-indol-3-yl)propanoic acid	分子量：343.8 密度：N/A 沸点：N/A 熔点：N/A	1608725-28-5	C₁₇H₁₄ClN₃O₃
5-(1-(3-Chlorobenzyl)azetidin-3-yl)-3-(thiophen-2-yl)-1,2,4-oxadiazole oxalate	5-(1-(3-Chlorobenzyl)azetidin-3-yl)-3-(thiophen-2-yl)-1,2,4-oxadiazole oxalate	分子量：421.9 密度：N/A 沸点：N/A 熔点：N/A	1351596-38-7	C₁₈H₁₆ClN₃O₅S
3-(4-methoxyphenyl)-N-[4-oxo-3-(propan-2-yl)-3,4-dihydroquinazolin-6-yl]propanamide	3-(4-methoxyphenyl)-N-[4-oxo-3-(propan-2-yl)-3,4-dihydroquinazolin-6-yl]propanamide	分子量：365.4 密度：N/A 沸点：N/A 熔点：N/A	1574354-28-1	C₂₁H₂₃N₃O₃
5-(1-(Pyridin-2-ylmethyl)azetidin-3-yl)-3-(thiophen-2-yl)-1,2,4-oxadiazole oxalate	5-(1-(Pyridin-2-ylmethyl)azetidin-3-yl)-3-(thiophen-2-yl)-1,2,4-oxadiazole oxalate	分子量：388.4 密度：N/A 沸点：N/A 熔点：N/A	1351657-89-0	C₁₇H₁₆N₄O₅S
2-(Azetidin-3-ylsulfanyl)-4-methylpyrimidine hydrochloride	2-(Azetidin-3-ylsulfanyl)-4-methylpyrimidine hydrochloride	分子量：217.72 密度：N/A 沸点：N/A 熔点：N/A	1864016-30-7	C₈H₁₂ClN₃S
5-(azetidin-3-ylsulfanyl)-1-phenyl-1H-1,2,3,4-tetrazole hydrochloride	5-(azetidin-3-ylsulfanyl)-1-phenyl-1H-1,2,3,4-tetrazole hydrochloride	分子量：269.75 密度：N/A 沸点：N/A 熔点：N/A	1864051-96-6	C₁₀H₁₂ClN₅S
3-[(2-Methoxyphenyl)sulfanyl]azetidine hydrochloride	3-[(2-Methoxyphenyl)sulfanyl]azetidine hydrochloride	分子量：231.74 密度：N/A 沸点：N/A 熔点：N/A	1864072-74-1	C₁₀H₁₄ClNOS
N-(1,3-benzodioxol-5-ylmethyl)-2,4-dioxo-3-(2-phenylethyl)-4a,5,6,7,8,8a-hexahydro-1H-quinazoline-7-carboxamide	N-(1,3-benzodioxol-5-ylmethyl)-2,4-dioxo-3-(2-phenylethyl)-4a,5,6,7,8,8a-hexahydro-1H-quinazoline-7-carboxamide	分子量：449.5 密度：N/A 沸点：N/A 熔点：N/A	892279-33-3	C₂₅H₂₇N₃O₅
3,4,5-trimethoxy-N-(6-methoxy-2,3,4,9-tetrahydro-1H-carbazol-1-yl)benzamide	3,4,5-trimethoxy-N-(6-methoxy-2,3,4,9-tetrahydro-1H-carbazol-1-yl)benzamide	分子量：410.5 密度：N/A 沸点：N/A 熔点：N/A	1574292-32-2	C₂₃H₂₆N₂O₅
Methyl 2-[(piperidin-3-ylmethyl)sulfonyl]acetate hydrochloride	Methyl 2-[(piperidin-3-ylmethyl)sulfonyl]acetate hydrochloride	分子量：271.76 密度：N/A 沸点：N/A 熔点：N/A	1864062-01-0	C₉H₁₈ClNO₄S
N-[(2,2-dimethyl-3,4-dihydro-2H-chromen-6-yl)acetyl]-beta-alanine	N-[(2,2-dimethyl-3,4-dihydro-2H-chromen-6-yl)acetyl]-beta-alanine	分子量：291.34 密度：N/A 沸点：N/A 熔点：N/A	1574344-51-6	C₁₆H₂₁NO₄
N-(6-methoxy-2,3,4,9-tetrahydro-1H-carbazol-1-yl)-4-phenyltetrahydro-2H-pyran-4-carboxamide	N-(6-methoxy-2,3,4,9-tetrahydro-1H-carbazol-1-yl)-4-phenyltetrahydro-2H-pyran-4-carboxamide	分子量：404.5 密度：N/A 沸点：N/A 熔点：N/A	1574291-40-9	C₂₅H₂₈N₂O₃
5-(1-((2-Methylthiazol-4-yl)methyl)azetidin-3-yl)-3-(thiophen-2-yl)-1,2,4-oxadiazole oxalate	5-(1-((2-Methylthiazol-4-yl)methyl)azetidin-3-yl)-3-(thiophen-2-yl)-1,2,4-oxadiazole oxalate	分子量：408.5 密度：N/A 沸点：N/A 熔点：N/A	1351623-21-6	C₁₆H₁₆N₄O₅S₂
2-(3,5-dimethyl-1,2-oxazol-4-yl)-1-(1,3,4,9-tetrahydro-2H-beta-carbolin-2-yl)ethanone	2-(3,5-dimethyl-1,2-oxazol-4-yl)-1-(1,3,4,9-tetrahydro-2H-beta-carbolin-2-yl)ethanone	分子量：309.4 密度：N/A 沸点：N/A 熔点：N/A	1574391-89-1	C₁₈H₁₉N₃O₂
3-[(4-Chlorophenyl)sulfanyl]pyrrolidine hydrochloride	3-[(4-Chlorophenyl)sulfanyl]pyrrolidine hydrochloride	分子量：250.19 密度：N/A 沸点：N/A 熔点：N/A	1864072-81-0	C₁₀H₁₃Cl₂NS
3-[(4-Methylphenyl)sulfanyl]pyrrolidine hydrochloride	3-[(4-Methylphenyl)sulfanyl]pyrrolidine hydrochloride	分子量：229.77 密度：N/A 沸点：N/A 熔点：N/A	1864016-35-2	C₁₁H₁₆ClNS
N-[2-(5-methoxy-1H-indol-3-yl)ethyl]-4-[2-(propan-2-yl)-2H-tetrazol-5-yl]benzamide	N-[2-(5-methoxy-1H-indol-3-yl)ethyl]-4-[2-(propan-2-yl)-2H-tetrazol-5-yl]benzamide	分子量：404.5 密度：N/A 沸点：N/A 熔点：N/A	1574361-50-4	C₂₂H₂₄N₆O₂