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-[[1-(4-Chlorophenyl)tetrazol-5-yl]methylsulfanyl]-6-methyl-1,3-diazinan-4-one	2-[[1-(4-Chlorophenyl)tetrazol-5-yl]methylsulfanyl]-6-methyl-1,3-diazinan-4-one	分子量：338.82 密度：N/A 沸点：N/A 熔点：N/A	799274-91-2	C₁₃H₁₅ClN₆OS
3-[(1,3-benzodioxol-5-ylmethylamino)methyl]-6-ethoxy-3,4,4a,5,6,7,8,8a-octahydro-1H-quinolin-2-one	3-[(1,3-benzodioxol-5-ylmethylamino)methyl]-6-ethoxy-3,4,4a,5,6,7,8,8a-octahydro-1H-quinolin-2-one	分子量：360.4 密度：N/A 沸点：N/A 熔点：N/A	484025-64-1	C₂₀H₂₈N₂O₄
ethyl 5,6-dimethyl-4-oxo-4aH-thieno[2,3-d]pyrimidine-2-carboxylate	ethyl 5,6-dimethyl-4-oxo-4aH-thieno[2,3-d]pyrimidine-2-carboxylate	分子量：252.29 密度：N/A 沸点：N/A 熔点：N/A	65191-22-2	C₁₁H₁₂N₂O₃S
2-(2-Ethoxyethyl)-4-methyl-6-(4-methylphenyl)-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	2-(2-Ethoxyethyl)-4-methyl-6-(4-methylphenyl)-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	分子量：371.4 密度：N/A 沸点：N/A 熔点：N/A	872840-38-5	C₁₉H₂₅N₅O₃
ethyl 1-[3-(2,4-dioxo-4aH-quinazolin-3-yl)propanoyl]piperidine-4-carboxylate	ethyl 1-[3-(2,4-dioxo-4aH-quinazolin-3-yl)propanoyl]piperidine-4-carboxylate	分子量：373.4 密度：N/A 沸点：N/A 熔点：N/A	896376-15-1	C₁₉H₂₃N₃O₅
6-morpholin-4-yl-3-(3-piperidin-1-ylpropyl)-2-sulfanylidene-6H-quinazolin-4-one	6-morpholin-4-yl-3-(3-piperidin-1-ylpropyl)-2-sulfanylidene-6H-quinazolin-4-one	分子量：388.5 密度：N/A 沸点：N/A 熔点：N/A	896683-33-3	C₂₀H₂₈N₄O₂S
6-chloro-3-(furan-2-ylmethyl)-2-sulfanylidene-6H-quinazolin-4-one	6-chloro-3-(furan-2-ylmethyl)-2-sulfanylidene-6H-quinazolin-4-one	分子量：292.74 密度：N/A 沸点：N/A 熔点：N/A	422527-06-8	C₁₃H₉ClN₂O₂S
N-[3-(diethylamino)propyl]-2,4-dioxo-3-pentyl-4aH-quinazoline-7-carboxamide	N-[3-(diethylamino)propyl]-2,4-dioxo-3-pentyl-4aH-quinazoline-7-carboxamide	分子量：388.5 密度：N/A 沸点：N/A 熔点：N/A	892267-64-0	C₂₁H₃₂N₄O₃
Torasemide sodium	Torasemide sodium	分子量：370.4 密度：N/A 沸点：N/A 熔点：N/A	72810-59-4	C₁₆H₁₉N₄NaO₃S
Indium chloride trihydrate	Indium chloride trihydrate	分子量：275.22 密度：N/A 沸点：N/A 熔点：N/A	20471-73-2	Cl₃H₆InO₃
Dilithium uridine 5'-diphosphate	Dilithium uridine 5'-diphosphate	分子量：416.1 密度：N/A 沸点：N/A 熔点：N/A	115307-99-8	C₉H₁₂Li₂N₂O₁₂P₂
6-(furan-2-ylmethyl)-4-methyl-2-(2-phenylethyl)-8,9a-dihydro-7H-purino[7,8-a]imidazol-6-ium-1,3-dione	6-(furan-2-ylmethyl)-4-methyl-2-(2-phenylethyl)-8,9a-dihydro-7H-purino[7,8-a]imidazol-6-ium-1,3-dione	分子量：392.4 密度：N/A 沸点：N/A 熔点：N/A	872838-70-5	C₂₁H₂₂N₅O₃+
4-(2,4-dioxo-4aH-quinazolin-3-yl)-N-(4-methoxyphenyl)butanamide	4-(2,4-dioxo-4aH-quinazolin-3-yl)-N-(4-methoxyphenyl)butanamide	分子量：353.4 密度：N/A 沸点：N/A 熔点：N/A	896354-11-3	C₁₉H₁₉N₃O₄
2-(2-Methoxyethyl)-4-methyl-6-(4-methylphenyl)-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	2-(2-Methoxyethyl)-4-methyl-6-(4-methylphenyl)-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	分子量：357.4 密度：N/A 沸点：N/A 熔点：N/A	872840-37-4	C₁₈H₂₃N₅O₃
2-(2-Ethoxyethyl)-6-(4-ethylphenyl)-4-methyl-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	2-(2-Ethoxyethyl)-6-(4-ethylphenyl)-4-methyl-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	分子量：385.5 密度：N/A 沸点：N/A 熔点：N/A	872840-68-1	C₂₀H₂₇N₅O₃
N-(2-morpholin-4-ylethyl)-2,4-dioxo-3-pentyl-4aH-quinazoline-7-carboxamide	N-(2-morpholin-4-ylethyl)-2,4-dioxo-3-pentyl-4aH-quinazoline-7-carboxamide	分子量：388.5 密度：N/A 沸点：N/A 熔点：N/A	892287-81-9	C₂₀H₂₈N₄O₄
ethyl 4-[3-(2-methoxyethyl)-2,4-dioxo-4aH-quinazoline-7-carbonyl]piperazine-1-carboxylate	ethyl 4-[3-(2-methoxyethyl)-2,4-dioxo-4aH-quinazoline-7-carbonyl]piperazine-1-carboxylate	分子量：404.4 密度：N/A 沸点：N/A 熔点：N/A	909858-01-1	C₁₉H₂₄N₄O₆
2-(2-Ethoxyethyl)-4-methyl-6-phenyl-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	2-(2-Ethoxyethyl)-4-methyl-6-phenyl-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	分子量：357.4 密度：N/A 沸点：N/A 熔点：N/A	872838-93-2	C₁₈H₂₃N₅O₃
8-[(2,6-Dimethylmorpholin-4-yl)methyl]-3-methyl-7-(3-phenylpropyl)-4,5-dihydropurine-2,6-dione	8-[(2,6-Dimethylmorpholin-4-yl)methyl]-3-methyl-7-(3-phenylpropyl)-4,5-dihydropurine-2,6-dione	分子量：413.5 密度：N/A 沸点：N/A 熔点：N/A	847409-08-9	C₂₂H₃₁N₅O₃
ethyl 4-[4-(2,4-dioxo-4aH-quinazolin-3-yl)butanoyl]piperazine-1-carboxylate	ethyl 4-[4-(2,4-dioxo-4aH-quinazolin-3-yl)butanoyl]piperazine-1-carboxylate	分子量：388.4 密度：N/A 沸点：N/A 熔点：N/A	688774-01-8	C₁₉H₂₄N₄O₅
6-morpholin-4-yl-3-(pyridin-2-ylmethyl)-2-sulfanylidene-4a,5,6,7,8,8a-hexahydro-1H-quinazolin-4-one	6-morpholin-4-yl-3-(pyridin-2-ylmethyl)-2-sulfanylidene-4a,5,6,7,8,8a-hexahydro-1H-quinazolin-4-one	分子量：360.5 密度：N/A 沸点：N/A 熔点：N/A	689766-27-6	C₁₈H₂₄N₄O₂S
4-Methyl-6-phenyl-2-(2-phenylethyl)-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	4-Methyl-6-phenyl-2-(2-phenylethyl)-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	分子量：389.4 密度：N/A 沸点：N/A 熔点：N/A	872838-94-3	C₂₂H₂₃N₅O₂
3-Methyl-8-(morpholin-4-ylmethyl)-7-(2-phenylethyl)-4,5-dihydropurine-2,6-dione	3-Methyl-8-(morpholin-4-ylmethyl)-7-(2-phenylethyl)-4,5-dihydropurine-2,6-dione	分子量：371.4 密度：N/A 沸点：N/A 熔点：N/A	847408-75-7	C₁₉H₂₅N₅O₃
4-(2,4-dioxo-4aH-quinazolin-3-yl)-N-[(4-methylphenyl)methyl]butanamide	4-(2,4-dioxo-4aH-quinazolin-3-yl)-N-[(4-methylphenyl)methyl]butanamide	分子量：351.4 密度：N/A 沸点：N/A 熔点：N/A	896373-28-7	C₂₀H₂₁N₃O₃
N-[2-(4-methylpiperidin-1-yl)ethyl]-2,4-dioxo-3-(2-phenylethyl)-4a,5,6,7,8,8a-hexahydro-1H-quinazoline-7-carboxamide	N-[2-(4-methylpiperidin-1-yl)ethyl]-2,4-dioxo-3-(2-phenylethyl)-4a,5,6,7,8,8a-hexahydro-1H-quinazoline-7-carboxamide	分子量：440.6 密度：N/A 沸点：N/A 熔点：N/A	892284-01-4	C₂₅H₃₆N₄O₃
N-(3,4-dimethoxybenzyl)-1-methyl-2-oxo-1,2-dihydro-4-quinolinecarboxamide	N-(3,4-dimethoxybenzyl)-1-methyl-2-oxo-1,2-dihydro-4-quinolinecarboxamide	分子量：352.4 密度：N/A 沸点：N/A 熔点：N/A	1374547-36-0	C₂₀H₂₀N₂O₄
2-[3-(3,4-dimethoxyphenyl)-2,4-dioxo-4aH-quinazolin-1-ium-1-yl]-N-(5-methyl-1,2-oxazol-3-yl)acetamide	2-[3-(3,4-dimethoxyphenyl)-2,4-dioxo-4aH-quinazolin-1-ium-1-yl]-N-(5-methyl-1,2-oxazol-3-yl)acetamide	分子量：437.4 密度：N/A 沸点：N/A 熔点：N/A	899922-52-2	C₂₂H₂₁N₄O₆+
1-Fluoro-3-[(methylsulfinyl)methyl]-5-nitrobenzene	1-Fluoro-3-[(methylsulfinyl)methyl]-5-nitrobenzene	分子量：217.22 密度：N/A 沸点：N/A 熔点：N/A	1415249-84-1	C₈H₈FNO₃S
2-(furan-2-ylmethyl)-1-(3-methoxyphenyl)-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrole-3,9-dione	2-(furan-2-ylmethyl)-1-(3-methoxyphenyl)-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrole-3,9-dione	分子量：393.4 密度：N/A 沸点：N/A 熔点：N/A	844466-18-8	C₂₃H₂₃NO₅
6-Azabicyclo[3.1.1]heptan-2-ol	6-Azabicyclo[3.1.1]heptan-2-ol	分子量：113.16 密度：N/A 沸点：N/A 熔点：N/A	2940861-50-5	C₆H₁₁NO
1-(3-methoxyphenyl)-7-methyl-2-(4-methylpyridin-2-yl)-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrole-3,9-dione	1-(3-methoxyphenyl)-7-methyl-2-(4-methylpyridin-2-yl)-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrole-3,9-dione	分子量：418.5 密度：N/A 沸点：N/A 熔点：N/A	845990-37-6	C₂₅H₂₆N₂O₄
1-(4-butoxy-3-methoxyphenyl)-6,7-dimethyl-2-(6-methylpyridin-2-yl)-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrole-3,9-dione	1-(4-butoxy-3-methoxyphenyl)-6,7-dimethyl-2-(6-methylpyridin-2-yl)-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrole-3,9-dione	分子量：504.6 密度：N/A 沸点：N/A 熔点：N/A	847338-77-6	C₃₀H₃₆N₂O₅
2-(2-Methoxyethyl)-4-methyl-6-(3-methylphenyl)-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	2-(2-Methoxyethyl)-4-methyl-6-(3-methylphenyl)-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	分子量：357.4 密度：N/A 沸点：N/A 熔点：N/A	872840-13-6	C₁₈H₂₃N₅O₃
2-(2-Ethoxyethyl)-4-methyl-6-(3-methylphenyl)-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	2-(2-Ethoxyethyl)-4-methyl-6-(3-methylphenyl)-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	分子量：371.4 密度：N/A 沸点：N/A 熔点：N/A	872840-14-7	C₁₉H₂₅N₅O₃
4-Methyl-6-(4-methylphenyl)-2-prop-2-enyl-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	4-Methyl-6-(4-methylphenyl)-2-prop-2-enyl-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	分子量：339.4 密度：N/A 沸点：N/A 熔点：N/A	872840-19-2	C₁₈H₂₁N₅O₂
7-bromo-1-(3,4-dichlorophenyl)-2-(4,5-dimethyl-1,3-thiazol-2-yl)-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrole-3,9-dione	7-bromo-1-(3,4-dichlorophenyl)-2-(4,5-dimethyl-1,3-thiazol-2-yl)-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrole-3,9-dione	分子量：542.3 密度：N/A 沸点：N/A 熔点：N/A	632314-72-8	C₂₂H₁₉BrCl₂N₂O₃S
4-Methyl-2-(2-methylprop-2-enyl)-6-phenyl-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	4-Methyl-2-(2-methylprop-2-enyl)-6-phenyl-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	分子量：339.4 密度：N/A 沸点：N/A 熔点：N/A	872838-91-0	C₁₈H₂₁N₅O₂
2-(2-Methoxyethyl)-4-methyl-6-phenyl-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	2-(2-Methoxyethyl)-4-methyl-6-phenyl-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	分子量：343.4 密度：N/A 沸点：N/A 熔点：N/A	872838-92-1	C₁₇H₂₁N₅O₃
1-(3,4-dimethoxyphenyl)-6,7-dimethyl-2-(6-methylpyridin-2-yl)-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrole-3,9-dione	1-(3,4-dimethoxyphenyl)-6,7-dimethyl-2-(6-methylpyridin-2-yl)-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrole-3,9-dione	分子量：462.5 密度：N/A 沸点：N/A 熔点：N/A	845668-22-6	C₂₇H₃₀N₂O₅
6-(4-Chlorophenyl)-4-methyl-2-propyl-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	6-(4-Chlorophenyl)-4-methyl-2-propyl-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	分子量：361.8 密度：N/A 沸点：N/A 熔点：N/A	872838-98-7	C₁₇H₂₀ClN₅O₂
methyl 4-[7-chloro-2-(4-methylpyridin-2-yl)-3,9-dioxo-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrol-1-yl]benzoate	methyl 4-[7-chloro-2-(4-methylpyridin-2-yl)-3,9-dioxo-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrol-1-yl]benzoate	分子量：466.9 密度：N/A 沸点：N/A 熔点：N/A	846597-75-9	C₂₅H₂₃ClN₂O₅
1-(4-methylphenyl)-2-pyridin-2-yl-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrole-3,9-dione	1-(4-methylphenyl)-2-pyridin-2-yl-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrole-3,9-dione	分子量：374.4 密度：N/A 沸点：N/A 熔点：N/A	620155-55-7	C₂₃H₂₂N₂O₃
7-chloro-1-(2-fluorophenyl)-2-(oxolan-2-ylmethyl)-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrole-3,9-dione	7-chloro-1-(2-fluorophenyl)-2-(oxolan-2-ylmethyl)-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrole-3,9-dione	分子量：419.9 密度：N/A 沸点：N/A 熔点：N/A	846591-80-8	C₂₂H₂₃ClFNO₄
1-(3,4-dimethoxyphenyl)-2-pyridin-2-yl-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrole-3,9-dione	1-(3,4-dimethoxyphenyl)-2-pyridin-2-yl-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrole-3,9-dione	分子量：420.5 密度：N/A 沸点：N/A 熔点：N/A	620155-84-2	C₂₄H₂₄N₂O₅
7-bromo-1-(3-chlorophenyl)-2-(6-methylpyridin-2-yl)-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrole-3,9-dione	7-bromo-1-(3-chlorophenyl)-2-(6-methylpyridin-2-yl)-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrole-3,9-dione	分子量：487.8 密度：N/A 沸点：N/A 熔点：N/A	845633-72-9	C₂₃H₂₀BrClN₂O₃
Chlorcyclizine hydrochloride, (S)-	Chlorcyclizine hydrochloride, (S)-	分子量：337.3 密度：N/A 沸点：N/A 熔点：N/A	787620-21-7	C₁₈H₂₂Cl₂N₂
Molindone hydrochloride, (R)-	Molindone hydrochloride, (R)-	分子量：312.83 密度：N/A 沸点：N/A 熔点：N/A	2567012-51-3	C₁₆H₂₅ClN₂O₂
D-Ornithine, 2-(difluoromethyl)-, monohydrochloride	D-Ornithine, 2-(difluoromethyl)-, monohydrochloride	分子量：236.64 密度：N/A 沸点：N/A 熔点：N/A	70050-55-4	C₆H₁₅ClF₂N₂O₃
1,3-dimethyl-8-[(4-methylphenyl)methylsulfanyl]-7-pentyl-5H-purin-7-ium-2,6-dione	1,3-dimethyl-8-[(4-methylphenyl)methylsulfanyl]-7-pentyl-5H-purin-7-ium-2,6-dione	分子量：387.5 密度：N/A 沸点：N/A 熔点：N/A	384801-66-5	C₂₀H₂₇N₄O₂S+
Nicardipine hydrochloride, (R)-	Nicardipine hydrochloride, (R)-	分子量：516.0 密度：N/A 沸点：N/A 熔点：N/A	118705-95-6	C₂₆H₃₀ClN₃O₆