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-(Butan-2-yl)-7-methylimidazo[1,2-a]pyridine-3-sulfonyl chloride	2-(Butan-2-yl)-7-methylimidazo[1,2-a]pyridine-3-sulfonyl chloride	分子量：286.78 密度：N/A 沸点：N/A 熔点：N/A	2138053-24-2	C₁₂H₁₅ClN₂O₂S
N-ethyl-4-(5-formylthiophen-3-yl)-3-methylbenzene-1-sulfonamide	N-ethyl-4-(5-formylthiophen-3-yl)-3-methylbenzene-1-sulfonamide	分子量：309.4 密度：N/A 沸点：N/A 熔点：N/A	2171858-27-6	C₁₄H₁₅NO₃S₂
Methyl 2-amino-3-(cyclohex-3-en-1-yl)-3-methylbutanoate	Methyl 2-amino-3-(cyclohex-3-en-1-yl)-3-methylbutanoate	分子量：211.30 密度：N/A 沸点：N/A 熔点：N/A	2228129-09-5	C₁₂H₂₁NO₂
1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 5H,6H,7H,8H-[1,2,4]triazolo[1,5-a]pyridine-5-carboxylate	1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 5H,6H,7H,8H-[1,2,4]triazolo[1,5-a]pyridine-5-carboxylate	分子量：312.28 密度：N/A 沸点：N/A 熔点：N/A	2248326-11-4	C₁₅H₁₂N₄O₄
4-(Benzyloxy)-2-fluoro-1-(3-methoxyphenyl)benzene	4-(Benzyloxy)-2-fluoro-1-(3-methoxyphenyl)benzene	分子量：308.3 密度：N/A 沸点：N/A 熔点：N/A	2172099-19-1	C₂₀H₁₇FO₂
(2R)-2-{2-[(1RS,2RS)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohexyl]acetamido}propanoic acid	(2R)-2-{2-[(1RS,2RS)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohexyl]acetamido}propanoic acid	分子量：450.5 密度：N/A 沸点：N/A 熔点：N/A	2227866-95-5	C₂₆H₃₀N₂O₅
3-[({1-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopropyl}formamido)methyl]-2,2-difluorocyclopropane-1-carboxylic acid	3-[({1-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopropyl}formamido)methyl]-2,2-difluorocyclopropane-1-carboxylic acid	分子量：470.5 密度：N/A 沸点：N/A 熔点：N/A	2172063-47-5	C₂₅H₂₄F₂N₂O₅
3-{[3-cyclopropyl-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]methyl}-2,2-difluorocyclopropane-1-carboxylic acid	3-{[3-cyclopropyl-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]methyl}-2,2-difluorocyclopropane-1-carboxylic acid	分子量：484.5 密度：N/A 沸点：N/A 熔点：N/A	2172003-60-8	C₂₆H₂₆F₂N₂O₅
3-{[2-cyclopropyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]methyl}-2,2-difluorocyclopropane-1-carboxylic acid	3-{[2-cyclopropyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]methyl}-2,2-difluorocyclopropane-1-carboxylic acid	分子量：484.5 密度：N/A 沸点：N/A 熔点：N/A	2172026-51-4	C₂₆H₂₆F₂N₂O₅
2-Azido-1-(5-chloropyridin-2-yl)ethan-1-ol	2-Azido-1-(5-chloropyridin-2-yl)ethan-1-ol	分子量：198.61 密度：N/A 沸点：N/A 熔点：N/A	2013111-78-7	C₇H₇ClN₄O
(1R)-2-azido-1-(5-chloropyridin-2-yl)ethan-1-ol	(1R)-2-azido-1-(5-chloropyridin-2-yl)ethan-1-ol	分子量：198.61 密度：N/A 沸点：N/A 熔点：N/A	2015412-41-4	C₇H₇ClN₄O
3-Bromo-2-butyl-7-methylimidazo[1,2-a]pyridine	3-Bromo-2-butyl-7-methylimidazo[1,2-a]pyridine	分子量：267.16 密度：N/A 沸点：N/A 熔点：N/A	2138575-78-5	C₁₂H₁₅BrN₂
3-Ethyl-7-fluoro-1,2,3,4-tetrahydronaphthalen-1-one	3-Ethyl-7-fluoro-1,2,3,4-tetrahydronaphthalen-1-one	分子量：192.23 密度：N/A 沸点：N/A 熔点：N/A	2137792-82-4	C₁₂H₁₃FO
3-Bromo-2-cyclohexyl-7-methylimidazo[1,2-a]pyridine	3-Bromo-2-cyclohexyl-7-methylimidazo[1,2-a]pyridine	分子量：293.20 密度：N/A 沸点：N/A 熔点：N/A	2138555-09-4	C₁₄H₁₇BrN₂
2-{Bicyclo[2.2.1]heptan-2-yl}-3-bromo-7-methylimidazo[1,2-a]pyridine	2-{Bicyclo[2.2.1]heptan-2-yl}-3-bromo-7-methylimidazo[1,2-a]pyridine	分子量：305.21 密度：N/A 沸点：N/A 熔点：N/A	2138058-83-8	C₁₅H₁₇BrN₂
3-Bromo-2-cyclopropyl-8-methylimidazo[1,2-a]pyridine	3-Bromo-2-cyclopropyl-8-methylimidazo[1,2-a]pyridine	分子量：251.12 密度：N/A 沸点：N/A 熔点：N/A	2138058-92-9	C₁₁H₁₁BrN₂
3-Bromo-8-methyl-2-propylimidazo[1,2-a]pyridine	3-Bromo-8-methyl-2-propylimidazo[1,2-a]pyridine	分子量：253.14 密度：N/A 沸点：N/A 熔点：N/A	2138572-77-5	C₁₁H₁₃BrN₂
3-Bromo-8-methyl-2-(2-methylbutan-2-yl)imidazo[1,2-a]pyridine	3-Bromo-8-methyl-2-(2-methylbutan-2-yl)imidazo[1,2-a]pyridine	分子量：281.19 密度：N/A 沸点：N/A 熔点：N/A	2138059-02-4	C₁₃H₁₇BrN₂
2-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl) 3-methyl oxolane-2,3-dicarboxylate	2-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl) 3-methyl oxolane-2,3-dicarboxylate	分子量：319.27 密度：N/A 沸点：N/A 熔点：N/A	2248313-79-1	C₁₅H₁₃NO₇
3-Bromo-2-ethyl-8-methylimidazo[1,2-a]pyridine	3-Bromo-2-ethyl-8-methylimidazo[1,2-a]pyridine	分子量：239.11 密度：N/A 沸点：N/A 熔点：N/A	2138538-34-6	C₁₀H₁₁BrN₂
5-(2-Methanesulfonylethyl)-1,2-oxazol-3-amine	5-(2-Methanesulfonylethyl)-1,2-oxazol-3-amine	分子量：190.22 密度：N/A 沸点：N/A 熔点：N/A	2229182-80-1	C₆H₁₀N₂O₃S
3-Bromo-2-(oxolan-3-yl)imidazo[1,2-a]pyridine	3-Bromo-2-(oxolan-3-yl)imidazo[1,2-a]pyridine	分子量：267.12 密度：N/A 沸点：N/A 熔点：N/A	2138543-00-5	C₁₁H₁₁BrN₂O
3-Bromo-2-cyclohexylimidazo[1,2-a]pyridine	3-Bromo-2-cyclohexylimidazo[1,2-a]pyridine	分子量：279.18 密度：N/A 沸点：N/A 熔点：N/A	2138059-27-3	C₁₃H₁₅BrN₂
3-(3-Bromo-2-methoxyphenyl)-3-methylbutan-1-amine	3-(3-Bromo-2-methoxyphenyl)-3-methylbutan-1-amine	分子量：272.18 密度：N/A 沸点：N/A 熔点：N/A	2228638-24-0	C₁₂H₁₈BrNO
3-Bromo-2-cyclopropyl-5-methylimidazo[1,2-a]pyridine	3-Bromo-2-cyclopropyl-5-methylimidazo[1,2-a]pyridine	分子量：251.12 密度：N/A 沸点：N/A 熔点：N/A	2138048-13-0	C₁₁H₁₁BrN₂
3-Bromo-5-methyl-2-(propan-2-yl)imidazo[1,2-a]pyridine	3-Bromo-5-methyl-2-(propan-2-yl)imidazo[1,2-a]pyridine	分子量：253.14 密度：N/A 沸点：N/A 熔点：N/A	2138048-22-1	C₁₁H₁₃BrN₂
1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 5-sulfamoyl-1,3-thiazole-4-carboxylate	1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 5-sulfamoyl-1,3-thiazole-4-carboxylate	分子量：353.3 密度：N/A 沸点：N/A 熔点：N/A	2248283-47-6	C₁₂H₇N₃O₆S₂
(1R)-2-amino-1-[5-(4-methylphenyl)furan-2-yl]ethan-1-ol	(1R)-2-amino-1-[5-(4-methylphenyl)furan-2-yl]ethan-1-ol	分子量：217.26 密度：N/A 沸点：N/A 熔点：N/A	2227672-91-3	C₁₃H₁₅NO₂
2-(1-isocyanatoethyl)-1-methyl-1H-imidazole	2-(1-isocyanatoethyl)-1-methyl-1H-imidazole	分子量：151.17 密度：N/A 沸点：N/A 熔点：N/A	2649061-99-2	C₇H₉N₃O
3-[4-(benzyloxy)phenyl]-1,4-dimethyl-1H-pyrazol-5-amine	3-[4-(benzyloxy)phenyl]-1,4-dimethyl-1H-pyrazol-5-amine	分子量：293.4 密度：N/A 沸点：N/A 熔点：N/A	1859730-01-0	C₁₈H₁₉N₃O
3-[2-(benzyloxy)phenyl]-1-methyl-1H-pyrazol-5-amine	3-[2-(benzyloxy)phenyl]-1-methyl-1H-pyrazol-5-amine	分子量：279.34 密度：N/A 沸点：N/A 熔点：N/A	1877963-42-2	C₁₇H₁₇N₃O
(3R)-3-(3,5-dimethoxy-4-methylphenyl)-3-hydroxypropanoic acid	(3R)-3-(3,5-dimethoxy-4-methylphenyl)-3-hydroxypropanoic acid	分子量：240.25 密度：N/A 沸点：N/A 熔点：N/A	2227819-77-2	C₁₂H₁₆O₅
3-(2-Trifluoromethanesulfonylethoxy)azetidine	3-(2-Trifluoromethanesulfonylethoxy)azetidine	分子量：233.21 密度：N/A 沸点：N/A 熔点：N/A	2138097-20-6	C₆H₁₀F₃NO₃S
3-{[1-(Methanesulfonylmethyl)cyclopropyl]methoxy}azetidine	3-{[1-(Methanesulfonylmethyl)cyclopropyl]methoxy}azetidine	分子量：219.30 密度：N/A 沸点：N/A 熔点：N/A	2138092-91-6	C₉H₁₇NO₃S
5-[(azetidin-3-yloxy)methyl]-1-(propan-2-yl)-1H-1,2,3,4-tetrazole	5-[(azetidin-3-yloxy)methyl]-1-(propan-2-yl)-1H-1,2,3,4-tetrazole	分子量：197.24 密度：N/A 沸点：N/A 熔点：N/A	2138048-31-2	C₈H₁₅N₅O
1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 5-(1,2-dithiolan-4-yl)pentanoate	1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 5-(1,2-dithiolan-4-yl)pentanoate	分子量：351.4 密度：N/A 沸点：N/A 熔点：N/A	2248404-88-6	C₁₆H₁₇NO₄S₂
5-[(azetidin-3-yloxy)methyl]-1-propyl-1H-1,2,3,4-tetrazole	5-[(azetidin-3-yloxy)methyl]-1-propyl-1H-1,2,3,4-tetrazole	分子量：197.24 密度：N/A 沸点：N/A 熔点：N/A	2138048-34-5	C₈H₁₅N₅O
3-[(azetidin-3-yloxy)methyl]-5-ethyl-4-methyl-4H-1,2,4-triazole	3-[(azetidin-3-yloxy)methyl]-5-ethyl-4-methyl-4H-1,2,4-triazole	分子量：196.25 密度：N/A 沸点：N/A 熔点：N/A	2138121-45-4	C₉H₁₆N₄O
2-[2-Chloro-5-(trifluoromethyl)pyridin-3-yl]-2,2-difluoroethan-1-ol	2-[2-Chloro-5-(trifluoromethyl)pyridin-3-yl]-2,2-difluoroethan-1-ol	分子量：261.57 密度：N/A 沸点：N/A 熔点：N/A	2228987-59-3	C₈H₅ClF₅NO
1-[2-(azetidin-3-yloxy)ethyl]-3,5-dimethyl-1H-1,2,4-triazole	1-[2-(azetidin-3-yloxy)ethyl]-3,5-dimethyl-1H-1,2,4-triazole	分子量：196.25 密度：N/A 沸点：N/A 熔点：N/A	2138531-53-8	C₉H₁₆N₄O
3-(Azetidin-3-yloxy)-1-cyclopropylpyrrolidin-2-one	3-(Azetidin-3-yloxy)-1-cyclopropylpyrrolidin-2-one	分子量：196.25 密度：N/A 沸点：N/A 熔点：N/A	2138563-86-5	C₁₀H₁₆N₂O₂
5-[2-cyclopropyl-N-ethyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetamido]pentanoic acid	5-[2-cyclopropyl-N-ethyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetamido]pentanoic acid	分子量：464.6 密度：N/A 沸点：N/A 熔点：N/A	2171780-39-3	C₂₇H₃₂N₂O₅
2-(2,2-Dimethylpropyl)imidazo[1,2-a]pyridine-3-carbaldehyde	2-(2,2-Dimethylpropyl)imidazo[1,2-a]pyridine-3-carbaldehyde	分子量：216.28 密度：N/A 沸点：N/A 熔点：N/A	2138048-46-9	C₁₃H₁₆N₂O
2-Cycloheptylimidazo[1,2-a]pyridine-3-carbaldehyde	2-Cycloheptylimidazo[1,2-a]pyridine-3-carbaldehyde	分子量：242.32 密度：N/A 沸点：N/A 熔点：N/A	2138571-55-6	C₁₅H₁₈N₂O
{1-[5-Chloro-2-(difluoromethoxy)phenyl]cyclobutyl}methanol	{1-[5-Chloro-2-(difluoromethoxy)phenyl]cyclobutyl}methanol	分子量：262.68 密度：N/A 沸点：N/A 熔点：N/A	2229541-18-6	C₁₂H₁₃ClF₂O₂
2-(Oxan-4-yl)imidazo[1,2-a]pyridine-3-carbaldehyde	2-(Oxan-4-yl)imidazo[1,2-a]pyridine-3-carbaldehyde	分子量：230.26 密度：N/A 沸点：N/A 熔点：N/A	2138093-02-2	C₁₃H₁₄N₂O₂
3-{3-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethoxy]propanamido}-4,4-difluorobutanoic acid	3-{3-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethoxy]propanamido}-4,4-difluorobutanoic acid	分子量：476.5 密度：N/A 沸点：N/A 熔点：N/A	2171863-52-6	C₂₄H₂₆F₂N₂O₆
2-(2-Methylpropyl)imidazo[1,2-a]pyridine-3-carbaldehyde	2-(2-Methylpropyl)imidazo[1,2-a]pyridine-3-carbaldehyde	分子量：202.25 密度：N/A 沸点：N/A 熔点：N/A	2138538-39-1	C₁₂H₁₄N₂O
1-(2-Chloro-6-hydroxyphenyl)-2,2-difluoroethan-1-one	1-(2-Chloro-6-hydroxyphenyl)-2,2-difluoroethan-1-one	分子量：206.57 密度：N/A 沸点：N/A 熔点：N/A	2228976-57-4	C₈H₅ClF₂O₂
5-Methyl-2-(oxan-4-yl)imidazo[1,2-a]pyridine-3-carbaldehyde	5-Methyl-2-(oxan-4-yl)imidazo[1,2-a]pyridine-3-carbaldehyde	分子量：244.29 密度：N/A 沸点：N/A 熔点：N/A	2138554-54-6	C₁₄H₁₆N₂O₂