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-Dimethoxy-1-(piperazin-1-yl)ethan-1-one	2,2-Dimethoxy-1-(piperazin-1-yl)ethan-1-one	分子量：188.22 密度：N/A 沸点：N/A 熔点：N/A	1955554-66-1	C₈H₁₆N₂O₃
N-(4-(morpholinosulfonyl)phenyl)-2-(pyridin-4-yl)quinoline-4-carboxamide	N-(4-(morpholinosulfonyl)phenyl)-2-(pyridin-4-yl)quinoline-4-carboxamide	分子量：474.5 密度：N/A 沸点：N/A 熔点：N/A	879920-80-6	C₂₅H₂₂N₄O₄S
4,6-dichloro-1,3,5-trimethyl-1H-pyrazolo[3,4-b]pyridine	4,6-dichloro-1,3,5-trimethyl-1H-pyrazolo[3,4-b]pyridine	分子量：230.09 密度：N/A 沸点：N/A 熔点：N/A	1955548-74-9	C₉H₉Cl₂N₃
N-(4-(N-isopropylsulfamoyl)phenyl)-2-(pyridin-4-yl)quinoline-4-carboxamide	N-(4-(N-isopropylsulfamoyl)phenyl)-2-(pyridin-4-yl)quinoline-4-carboxamide	分子量：446.5 密度：N/A 沸点：N/A 熔点：N/A	879920-86-2	C₂₄H₂₂N₄O₃S
tert-butyl 1-(N'-hydroxycarbamimidoyl)cyclobutane-1-carboxylate	tert-butyl 1-(N'-hydroxycarbamimidoyl)cyclobutane-1-carboxylate	分子量：214.26 密度：N/A 沸点：N/A 熔点：N/A	1955564-40-5	C₁₀H₁₈N₂O₃
N-[4-(piperidylsulfonyl)phenyl](2-(4-pyridyl)(4-quinolyl))carboxamide	N-[4-(piperidylsulfonyl)phenyl](2-(4-pyridyl)(4-quinolyl))carboxamide	分子量：472.6 密度：N/A 沸点：N/A 熔点：N/A	879920-91-9	C₂₆H₂₄N₄O₃S
2-(2-Cyanophenyl)-2,2-difluoroacetic Acid	2-(2-Cyanophenyl)-2,2-difluoroacetic Acid	分子量：197.14 密度：N/A 沸点：N/A 熔点：N/A	1824201-60-6	C₉H₅F₂NO₂
N-[4-(cyclohexylsulfamoyl)phenyl]-2-(pyridin-4-yl)quinoline-4-carboxamide	N-[4-(cyclohexylsulfamoyl)phenyl]-2-(pyridin-4-yl)quinoline-4-carboxamide	分子量：486.6 密度：N/A 沸点：N/A 熔点：N/A	879920-95-3	C₂₇H₂₆N₄O₃S
5-(iodomethyl)-2-(1-methyl-1H-pyrazol-4-yl)-4,5-dihydro-1,3-oxazole	5-(iodomethyl)-2-(1-methyl-1H-pyrazol-4-yl)-4,5-dihydro-1,3-oxazole	分子量：291.09 密度：N/A 沸点：N/A 熔点：N/A	2649073-80-1	C₈H₁₀IN₃O
N-[4-(tert-butylsulfamoyl)phenyl]-2-(pyridin-4-yl)quinoline-4-carboxamide	N-[4-(tert-butylsulfamoyl)phenyl]-2-(pyridin-4-yl)quinoline-4-carboxamide	分子量：460.5 密度：N/A 沸点：N/A 熔点：N/A	879920-97-5	C₂₅H₂₄N₄O₃S
tert-butyl N-[(2R)-2-[(2S)-2-(6-methoxynaphthalen-2-yl)propanamido]propyl]carbamate	tert-butyl N-[(2R)-2-[(2S)-2-(6-methoxynaphthalen-2-yl)propanamido]propyl]carbamate	分子量：386.5 密度：N/A 沸点：N/A 熔点：N/A	1955475-02-1	C₂₂H₃₀N₂O₄
N-{4-[(2-methylpropyl)sulfamoyl]phenyl}-2-(pyridin-4-yl)quinoline-4-carboxamide	N-{4-[(2-methylpropyl)sulfamoyl]phenyl}-2-(pyridin-4-yl)quinoline-4-carboxamide	分子量：460.5 密度：N/A 沸点：N/A 熔点：N/A	879920-99-7	C₂₅H₂₄N₄O₃S
1-Azido-2-fluoro-4-methoxybenzene	1-Azido-2-fluoro-4-methoxybenzene	分子量：167.14 密度：N/A 沸点：N/A 熔点：N/A	1955505-77-7	C₇H₆FN₃O
N-(4-(N-(sec-butyl)sulfamoyl)phenyl)-2-(pyridin-4-yl)quinoline-4-carboxamide	N-(4-(N-(sec-butyl)sulfamoyl)phenyl)-2-(pyridin-4-yl)quinoline-4-carboxamide	分子量：460.5 密度：N/A 沸点：N/A 熔点：N/A	879921-01-4	C₂₅H₂₄N₄O₃S
6-chloro-8-iodo-9-{[2-(trimethylsilyl)ethoxy]methyl}-9H-purine	6-chloro-8-iodo-9-{[2-(trimethylsilyl)ethoxy]methyl}-9H-purine	分子量：410.71 密度：N/A 沸点：N/A 熔点：N/A	1955505-82-4	C₁₁H₁₆ClIN₄OSi
(5Z)-5-{[2-(benzyloxy)-3-methoxyphenyl]methylidene}-2-sulfanylidene-1,3-thiazolidin-4-one	(5Z)-5-{[2-(benzyloxy)-3-methoxyphenyl]methylidene}-2-sulfanylidene-1,3-thiazolidin-4-one	分子量：357.5 密度：N/A 沸点：N/A 熔点：N/A	1287651-60-8	C₁₈H₁₅NO₃S₂
methyl 1-(1-methyl-1H-pyrazol-4-yl)-5-oxopyrrolidine-3-carboxylate	methyl 1-(1-methyl-1H-pyrazol-4-yl)-5-oxopyrrolidine-3-carboxylate	分子量：223.23 密度：N/A 沸点：N/A 熔点：N/A	1989672-48-1	C₁₀H₁₃N₃O₃
(5E)-5-(2-Bromo-5-ethoxy-4-hydroxybenzylidene)-2-mercapto-1,3-thiazol-4(5H)-one	(5E)-5-(2-Bromo-5-ethoxy-4-hydroxybenzylidene)-2-mercapto-1,3-thiazol-4(5H)-one	分子量：360.3 密度：N/A 沸点：N/A 熔点：N/A	667412-61-5	C₁₂H₁₀BrNO₃S₂
4-Isopropyl-1-oxa-4,8-diazaspiro[5.5]undecan-5-one	4-Isopropyl-1-oxa-4,8-diazaspiro[5.5]undecan-5-one	分子量：212.29 密度：N/A 沸点：N/A 熔点：N/A	2089712-20-7	C₁₁H₂₀N₂O₂
Methyl 2-[3-(trifluoromethyl)phenoxy]propanoate	Methyl 2-[3-(trifluoromethyl)phenoxy]propanoate	分子量：248.20 密度：N/A 沸点：N/A 熔点：N/A	667412-72-8	C₁₁H₁₁F₃O₃
4-Ethyl-1-oxa-4,8-diazaspiro[5.5]undecan-5-one	4-Ethyl-1-oxa-4,8-diazaspiro[5.5]undecan-5-one	分子量：198.26 密度：N/A 沸点：N/A 熔点：N/A	2089673-60-7	C₁₀H₁₈N₂O₂
N-(2,5-dimethoxyphenyl)-2-(pyridin-4-yl)quinoline-4-carboxamide	N-(2,5-dimethoxyphenyl)-2-(pyridin-4-yl)quinoline-4-carboxamide	分子量：385.4 密度：N/A 沸点：N/A 熔点：N/A	879921-19-4	C₂₃H₁₉N₃O₃
4-Methyl-1-oxa-4,8-diazaspiro[5.5]undecan-5-one	4-Methyl-1-oxa-4,8-diazaspiro[5.5]undecan-5-one	分子量：184.24 密度：N/A 沸点：N/A 熔点：N/A	2089714-51-0	C₉H₁₆N₂O₂
N-(4-methoxyphenyl)-2-(pyridin-4-yl)quinoline-4-carboxamide	N-(4-methoxyphenyl)-2-(pyridin-4-yl)quinoline-4-carboxamide	分子量：355.4 密度：N/A 沸点：N/A 熔点：N/A	879921-23-0	C₂₂H₁₇N₃O₂
1-Oxa-4,8-diazaspiro[5.5]undecan-5-one	1-Oxa-4,8-diazaspiro[5.5]undecan-5-one	分子量：170.21 密度：N/A 沸点：N/A 熔点：N/A	2089648-48-4	C₈H₁₄N₂O₂
2-(pyridin-4-yl)-N-(m-tolyl)quinoline-4-carboxamide	2-(pyridin-4-yl)-N-(m-tolyl)quinoline-4-carboxamide	分子量：339.4 密度：N/A 沸点：N/A 熔点：N/A	879921-25-2	C₂₂H₁₇N₃O
1-Oxa-9-thia-4-azaspiro[5.5]undecan-5-one 9,9-dioxide	1-Oxa-9-thia-4-azaspiro[5.5]undecan-5-one 9,9-dioxide	分子量：219.26 密度：N/A 沸点：N/A 熔点：N/A	2098105-58-7	C₈H₁₃NO₄S
N-(4-fluorophenyl)-2-(pyridin-4-yl)quinoline-4-carboxamide	N-(4-fluorophenyl)-2-(pyridin-4-yl)quinoline-4-carboxamide	分子量：343.4 密度：N/A 沸点：N/A 熔点：N/A	879921-33-2	C₂₁H₁₄FN₃O
1-Oxa-9-thia-4-azaspiro[5.5]undecan-5-one	1-Oxa-9-thia-4-azaspiro[5.5]undecan-5-one	分子量：187.26 密度：N/A 沸点：N/A 熔点：N/A	2098120-29-5	C₈H₁₃NO₂S
N-(3-methoxyphenyl)-2-(pyridin-4-yl)quinoline-4-carboxamide	N-(3-methoxyphenyl)-2-(pyridin-4-yl)quinoline-4-carboxamide	分子量：355.4 密度：N/A 沸点：N/A 熔点：N/A	879921-35-4	C₂₂H₁₇N₃O₂
5-Oxa-8-azaspiro[3.5]nonan-9-one	5-Oxa-8-azaspiro[3.5]nonan-9-one	分子量：141.17 密度：N/A 沸点：N/A 熔点：N/A	2098044-12-1	C₇H₁₁NO₂
2-(azepan-1-yl)-N-(4-(N-(thiazol-2-yl)sulfamoyl)phenyl)acetamide	2-(azepan-1-yl)-N-(4-(N-(thiazol-2-yl)sulfamoyl)phenyl)acetamide	分子量：394.5 密度：N/A 沸点：N/A 熔点：N/A	845264-43-9	C₁₇H₂₂N₄O₃S₂
4-Cyclopropyl-1-oxa-4,9-diazaspiro[5.5]undecan-5-one	4-Cyclopropyl-1-oxa-4,9-diazaspiro[5.5]undecan-5-one	分子量：210.27 密度：N/A 沸点：N/A 熔点：N/A	2098118-76-2	C₁₁H₁₈N₂O₂
2-[2-(3,5-dimethylphenoxy)propanoyl]-N-ethylhydrazinecarbothioamide	2-[2-(3,5-dimethylphenoxy)propanoyl]-N-ethylhydrazinecarbothioamide	分子量：295.40 密度：N/A 沸点：N/A 熔点：N/A	667413-02-7	C₁₄H₂₁N₃O₂S
4-Isopropyl-1-oxa-4,9-diazaspiro[5.5]undecan-5-one	4-Isopropyl-1-oxa-4,9-diazaspiro[5.5]undecan-5-one	分子量：212.29 密度：N/A 沸点：N/A 熔点：N/A	2091635-90-2	C₁₁H₂₀N₂O₂
2-[2-(3,5-dimethylphenoxy)propanoyl]-N-(prop-2-en-1-yl)hydrazinecarbothioamide	2-[2-(3,5-dimethylphenoxy)propanoyl]-N-(prop-2-en-1-yl)hydrazinecarbothioamide	分子量：307.4 密度：N/A 沸点：N/A 熔点：N/A	667413-05-0	C₁₅H₂₁N₃O₂S
4-Ethyl-1-oxa-4,9-diazaspiro[5.5]undecan-5-one	4-Ethyl-1-oxa-4,9-diazaspiro[5.5]undecan-5-one	分子量：198.26 密度：N/A 沸点：N/A 熔点：N/A	2092723-15-2	C₁₀H₁₈N₂O₂
(2E)-2-cyano-3-(2,5-dimethoxyphenyl)-N-(1,3-thiazol-2-yl)prop-2-enamide	(2E)-2-cyano-3-(2,5-dimethoxyphenyl)-N-(1,3-thiazol-2-yl)prop-2-enamide	分子量：315.3 密度：N/A 沸点：N/A 熔点：N/A	667413-71-0	C₁₅H₁₃N₃O₃S
4-Methyl-1-oxa-4,9-diazaspiro[5.5]undecan-5-one	4-Methyl-1-oxa-4,9-diazaspiro[5.5]undecan-5-one	分子量：184.24 密度：N/A 沸点：N/A 熔点：N/A	2092544-24-4	C₉H₁₆N₂O₂
N-(3-cyanothiophen-2-yl)-2-{[5-(5-methylthiophen-3-yl)-4-propyl-4H-1,2,4-triazol-3-yl]sulfanyl}acetamide	N-(3-cyanothiophen-2-yl)-2-{[5-(5-methylthiophen-3-yl)-4-propyl-4H-1,2,4-triazol-3-yl]sulfanyl}acetamide	分子量：403.6 密度：N/A 沸点：N/A 熔点：N/A	667413-77-6	C₁₇H₁₇N₅OS₃
(4-(trifluoromethyl)tetrahydro-2H-pyran-4-yl)methanol	(4-(trifluoromethyl)tetrahydro-2H-pyran-4-yl)methanol	分子量：184.16 密度：N/A 沸点：N/A 熔点：N/A	2091636-03-0	C₇H₁₁F₃O₂
2-[(2-chloro-4-fluorophenoxy)acetyl]-N-(prop-2-en-1-yl)hydrazinecarbothioamide	2-[(2-chloro-4-fluorophenoxy)acetyl]-N-(prop-2-en-1-yl)hydrazinecarbothioamide	分子量：317.77 密度：N/A 沸点：N/A 熔点：N/A	667413-84-5	C₁₂H₁₃ClFN₃O₂S
(2,2-Difluoro-3,3-dimethylcyclopropyl)methanesulfonyl chloride	(2,2-Difluoro-3,3-dimethylcyclopropyl)methanesulfonyl chloride	分子量：218.65 密度：N/A 沸点：N/A 熔点：N/A	1955557-19-3	C₆H₉ClF₂O₂S
2-azaperhydroepinyl-N-[4-(4-methylphenyl)(1,3-thiazol-2-yl)]acetamide	2-azaperhydroepinyl-N-[4-(4-methylphenyl)(1,3-thiazol-2-yl)]acetamide	分子量：329.5 密度：N/A 沸点：N/A 熔点：N/A	879922-75-5	C₁₈H₂₃N₃OS
Ethyl 3-benzenethioamido-1,2,4-thiadiazole-5-carboxylate	Ethyl 3-benzenethioamido-1,2,4-thiadiazole-5-carboxylate	分子量：293.4 密度：N/A 沸点：N/A 熔点：N/A	1989671-63-7	C₁₂H₁₁N₃O₂S₂
Methyl 3-chloro-6-isothiocyanatobenzo[b]thiophene-2-carboxylate	Methyl 3-chloro-6-isothiocyanatobenzo[b]thiophene-2-carboxylate	分子量：283.8 密度：N/A 沸点：N/A 熔点：N/A	667414-06-4	C₁₁H₆ClNO₂S₂
2-Bromo-1-(bromomethyl)-3-(2,2,2-trifluoroethoxy)benzene	2-Bromo-1-(bromomethyl)-3-(2,2,2-trifluoroethoxy)benzene	分子量：347.95 密度：N/A 沸点：N/A 熔点：N/A	1824284-85-6	C₉H₇Br₂F₃O
2-[2-(3-chlorophenoxy)propanoyl]-N-(prop-2-en-1-yl)hydrazinecarbothioamide	2-[2-(3-chlorophenoxy)propanoyl]-N-(prop-2-en-1-yl)hydrazinecarbothioamide	分子量：313.80 密度：N/A 沸点：N/A 熔点：N/A	667414-16-6	C₁₃H₁₆ClN₃O₂S
[1-(But-3-en-1-yl)cyclopentyl]methanamine	[1-(But-3-en-1-yl)cyclopentyl]methanamine	分子量：153.26 密度：N/A 沸点：N/A 熔点：N/A	1335044-30-8	C₁₀H₁₉N
N'-ethyl-2-[4-(propan-2-yl)phenoxy]acetohydrazide	N'-ethyl-2-[4-(propan-2-yl)phenoxy]acetohydrazide	分子量：236.31 密度：N/A 沸点：N/A 熔点：N/A	667414-36-0	C₁₃H₂₀N₂O₂