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
N-(4-(7-ethoxybenzofuran-2-yl)thiazol-2-yl)-4-((2-ethylpiperidin-1-yl)sulfonyl)benzamide	N-(4-(7-ethoxybenzofuran-2-yl)thiazol-2-yl)-4-((2-ethylpiperidin-1-yl)sulfonyl)benzamide	分子量：539.7 密度：N/A 沸点：N/A 熔点：N/A	921571-05-3	C₂₇H₂₉N₃O₅S₂
N-(4-((6-methoxy-2-methylpyrimidin-4-yl)amino)phenyl)-1,2-dihydroacenaphthylene-3-sulfonamide	N-(4-((6-methoxy-2-methylpyrimidin-4-yl)amino)phenyl)-1,2-dihydroacenaphthylene-3-sulfonamide	分子量：446.5 密度：N/A 沸点：N/A 熔点：N/A	946201-68-9	C₂₄H₂₂N₄O₃S
N-(3,5-dichlorophenyl)oxan-4-amine	N-(3,5-dichlorophenyl)oxan-4-amine	分子量：246.13 密度：N/A 沸点：N/A 熔点：N/A	1157013-24-5	C₁₁H₁₃Cl₂NO
N-(5-(1,1-dioxidoisothiazolidin-2-yl)-2-methylphenyl)-5-methyl-1-phenyl-1H-pyrazole-4-carboxamide	N-(5-(1,1-dioxidoisothiazolidin-2-yl)-2-methylphenyl)-5-methyl-1-phenyl-1H-pyrazole-4-carboxamide	分子量：410.5 密度：N/A 沸点：N/A 熔点：N/A	1324206-62-3	C₂₁H₂₂N₄O₃S
N-(1,4-dioxaspiro[4.5]decan-2-ylmethyl)-1-(4-fluorophenyl)cyclopropanecarboxamide	N-(1,4-dioxaspiro[4.5]decan-2-ylmethyl)-1-(4-fluorophenyl)cyclopropanecarboxamide	分子量：333.4 密度：N/A 沸点：N/A 熔点：N/A	1257547-62-8	C₁₉H₂₄FNO₃
N-(1,4-dioxaspiro[4.5]decan-2-ylmethyl)-1-(3-fluorophenyl)methanesulfonamide	N-(1,4-dioxaspiro[4.5]decan-2-ylmethyl)-1-(3-fluorophenyl)methanesulfonamide	分子量：343.4 密度：N/A 沸点：N/A 熔点：N/A	1257552-97-8	C₁₆H₂₂FNO₄S
N1-(1,4-dioxaspiro[4.5]decan-2-ylmethyl)-N2-(4-methyl-3-(2-oxopyrrolidin-1-yl)phenyl)oxalamide	N1-(1,4-dioxaspiro[4.5]decan-2-ylmethyl)-N2-(4-methyl-3-(2-oxopyrrolidin-1-yl)phenyl)oxalamide	分子量：415.5 密度：N/A 沸点：N/A 熔点：N/A	1251697-45-6	C₂₂H₂₉N₃O₅
N1-(1,4-dioxaspiro[4.5]decan-2-ylmethyl)-N2-(2-oxo-2,4,5,6-tetrahydro-1H-pyrrolo[3,2,1-ij]quinolin-8-yl)oxalamide	N1-(1,4-dioxaspiro[4.5]decan-2-ylmethyl)-N2-(2-oxo-2,4,5,6-tetrahydro-1H-pyrrolo[3,2,1-ij]quinolin-8-yl)oxalamide	分子量：413.5 密度：N/A 沸点：N/A 熔点：N/A	1251637-63-4	C₂₂H₂₇N₃O₅
1-(1,4-Dioxaspiro[4.4]nonan-2-ylmethyl)-3-benzylurea	1-(1,4-Dioxaspiro[4.4]nonan-2-ylmethyl)-3-benzylurea	分子量：290.36 密度：N/A 沸点：N/A 熔点：N/A	1251670-67-3	C₁₆H₂₂N₂O₃
1-(1,4-Dioxaspiro[4.4]nonan-2-ylmethyl)-3-(thiophen-2-ylmethyl)urea	1-(1,4-Dioxaspiro[4.4]nonan-2-ylmethyl)-3-(thiophen-2-ylmethyl)urea	分子量：296.39 密度：N/A 沸点：N/A 熔点：N/A	1251561-14-4	C₁₄H₂₀N₂O₃S
2a(2)-Amino-6a(2)-methyl[1,1a(2)-biphenyl]-2-propanenitrile	2a(2)-Amino-6a(2)-methyl[1,1a(2)-biphenyl]-2-propanenitrile	分子量：236.31 密度：N/A 沸点：N/A 熔点：N/A	1239525-46-2	C₁₆H₁₆N₂
N-(2-(2-(2-fluorophenyl)thiazolo[3,2-b][1,2,4]triazol-6-yl)ethyl)-2-phenyl-2H-1,2,3-triazole-4-carboxamide	N-(2-(2-(2-fluorophenyl)thiazolo[3,2-b][1,2,4]triazol-6-yl)ethyl)-2-phenyl-2H-1,2,3-triazole-4-carboxamide	分子量：433.5 密度：N/A 沸点：N/A 熔点：N/A	1324206-76-9	C₂₁H₁₆FN₇OS
aflatoxin B1 8,9-dihydrodiol	aflatoxin B1 8,9-dihydrodiol	分子量：346.3 密度：N/A 沸点：N/A 熔点：N/A	196820-36-7	C₁₇H₁₄O₈
2-{2-[3-(4-fluorophenyl)-1,2,4-oxadiazol-5-yl]-1H-pyrrol-1-yl}-N-(2-methylphenyl)acetamide	2-{2-[3-(4-fluorophenyl)-1,2,4-oxadiazol-5-yl]-1H-pyrrol-1-yl}-N-(2-methylphenyl)acetamide	分子量：376.4 密度：N/A 沸点：N/A 熔点：N/A	1261014-14-5	C₂₁H₁₇FN₄O₂
N-(2-chlorophenyl)-2-{2-[3-(4-fluorophenyl)-1,2,4-oxadiazol-5-yl]-1H-pyrrol-1-yl}acetamide	N-(2-chlorophenyl)-2-{2-[3-(4-fluorophenyl)-1,2,4-oxadiazol-5-yl]-1H-pyrrol-1-yl}acetamide	分子量：396.8 密度：N/A 沸点：N/A 熔点：N/A	1260937-00-5	C₂₀H₁₄ClFN₄O₂
N-[3-(Dimethylamino)propyl]-4-({[4-(3-ethyl-7-morpholin-4-yl-3H-[1,2,3]triazolo[4,5-d]pyrimidin-5-yl)phenyl]-carbamoyl}amino)benzamide	N-[3-(Dimethylamino)propyl]-4-({[4-(3-ethyl-7-morpholin-4-yl-3H-[1,2,3]triazolo[4,5-d]pyrimidin-5-yl)phenyl]-carbamoyl}amino)benzamide	分子量：572.7 密度：N/A 沸点：N/A 熔点：N/A	1173204-87-9	C₂₉H₃₆N₁₀O₃
N-(6-chlorobenzo[d]thiazol-2-yl)-2-(4-(ethylthio)phenyl)-N-(pyridin-4-ylmethyl)acetamide	N-(6-chlorobenzo[d]thiazol-2-yl)-2-(4-(ethylthio)phenyl)-N-(pyridin-4-ylmethyl)acetamide	分子量：454.0 密度：N/A 沸点：N/A 熔点：N/A	1170822-91-9	C₂₃H₂₀ClN₃OS₂
N-(6-Ethyl-2-benzothiazolyl)-4-[(4-fluorophenyl)sulfonyl]-N-(4-pyridinylmethyl)butanamide	N-(6-Ethyl-2-benzothiazolyl)-4-[(4-fluorophenyl)sulfonyl]-N-(4-pyridinylmethyl)butanamide	分子量：497.6 密度：N/A 沸点：N/A 熔点：N/A	1172779-63-3	C₂₅H₂₄FN₃O₃S₂
1-(2-(3,4-dihydroquinolin-1(2H)-yl)-2-oxoethyl)-6-oxo-N-(p-tolyl)-1,6-dihydropyridazine-3-carboxamide	1-(2-(3,4-dihydroquinolin-1(2H)-yl)-2-oxoethyl)-6-oxo-N-(p-tolyl)-1,6-dihydropyridazine-3-carboxamide	分子量：402.4 密度：N/A 沸点：N/A 熔点：N/A	1170849-59-8	C₂₃H₂₂N₄O₃
2-(2-((4-Methoxyphenyl)sulfonyl)acetamido)-6-methyl-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide	2-(2-((4-Methoxyphenyl)sulfonyl)acetamido)-6-methyl-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide	分子量：422.5 密度：N/A 沸点：N/A 熔点：N/A	922929-98-4	C₁₉H₂₂N₂O₅S₂
N-(4-bromophenyl)-2-((4-methoxyphenyl)sulfonyl)acetamide	N-(4-bromophenyl)-2-((4-methoxyphenyl)sulfonyl)acetamide	分子量：384.2 密度：N/A 沸点：N/A 熔点：N/A	922953-29-5	C₁₅H₁₄BrNO₄S
N-(3-bromophenyl)-2-((4-methoxyphenyl)sulfonyl)acetamide	N-(3-bromophenyl)-2-((4-methoxyphenyl)sulfonyl)acetamide	分子量：384.2 密度：N/A 沸点：N/A 熔点：N/A	922930-61-8	C₁₅H₁₄BrNO₄S
(E)-2-((4-methoxyphenyl)sulfonyl)-N-(4-(phenyldiazenyl)phenyl)acetamide	(E)-2-((4-methoxyphenyl)sulfonyl)-N-(4-(phenyldiazenyl)phenyl)acetamide	分子量：409.5 密度：N/A 沸点：N/A 熔点：N/A	1006823-16-0	C₂₁H₁₉N₃O₄S
Dipeptidyl nitrile inhibitor, 26	Dipeptidyl nitrile inhibitor, 26	分子量：381.5 密度：N/A 沸点：N/A 熔点：N/A	225120-45-6	C₂₁H₂₇N₅O₂
3-(4-methoxyphenyl)-N-{2-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl}propanamide	3-(4-methoxyphenyl)-N-{2-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl}propanamide	分子量：337.4 密度：N/A 沸点：N/A 熔点：N/A	946335-73-5	C₁₉H₁₉N₃O₃
N-(2,9-dimethyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)-2-ethoxybenzamide	N-(2,9-dimethyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)-2-ethoxybenzamide	分子量：337.4 密度：N/A 沸点：N/A 熔点：N/A	946382-14-5	C₁₉H₁₉N₃O₃
2-(benzo[d][1,3]dioxol-5-yloxy)-N-(2-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)propanamide	2-(benzo[d][1,3]dioxol-5-yloxy)-N-(2-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)propanamide	分子量：367.4 密度：N/A 沸点：N/A 熔点：N/A	1060244-64-5	C₁₉H₁₇N₃O₅
N-(5-allyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-7-yl)benzamide	N-(5-allyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-7-yl)benzamide	分子量：350.4 密度：N/A 沸点：N/A 熔点：N/A	921863-99-2	C₂₁H₂₂N₂O₃
2-(2-((4-(4-Methoxyphenyl)piperazin-1-yl)sulfonyl)ethyl)isoindoline-1,3-dione	2-(2-((4-(4-Methoxyphenyl)piperazin-1-yl)sulfonyl)ethyl)isoindoline-1,3-dione	分子量：429.5 密度：N/A 沸点：N/A 熔点：N/A	919854-45-8	C₂₁H₂₃N₃O₅S
methyl 2-((3-methyl-2,6-dioxo-7-(3-phenoxypropyl)-2,3,6,7-tetrahydro-1H-purin-8-yl)thio)propanoate	methyl 2-((3-methyl-2,6-dioxo-7-(3-phenoxypropyl)-2,3,6,7-tetrahydro-1H-purin-8-yl)thio)propanoate	分子量：418.5 密度：N/A 沸点：N/A 熔点：N/A	1105245-50-8	C₁₉H₂₂N₄O₅S
7-(3-(2-chlorophenoxy)-2-hydroxypropyl)-8-(isobutylamino)-1,3-dimethyl-1H-purine-2,6(3H,7H)-dione	7-(3-(2-chlorophenoxy)-2-hydroxypropyl)-8-(isobutylamino)-1,3-dimethyl-1H-purine-2,6(3H,7H)-dione	分子量：435.9 密度：N/A 沸点：N/A 熔点：N/A	1040668-08-3	C₂₀H₂₆ClN₅O₄
7-(3-(2-chlorophenoxy)-2-hydroxypropyl)-1,3-dimethyl-8-morpholino-1H-purine-2,6(3H,7H)-dione	7-(3-(2-chlorophenoxy)-2-hydroxypropyl)-1,3-dimethyl-8-morpholino-1H-purine-2,6(3H,7H)-dione	分子量：449.9 密度：N/A 沸点：N/A 熔点：N/A	1105244-12-9	C₂₀H₂₄ClN₅O₅
7-(2-hydroxy-2-phenylethyl)-1,3-dimethyl-8-(propylamino)-1H-purine-2,6(3H,7H)-dione	7-(2-hydroxy-2-phenylethyl)-1,3-dimethyl-8-(propylamino)-1H-purine-2,6(3H,7H)-dione	分子量：357.4 密度：N/A 沸点：N/A 熔点：N/A	1105196-88-0	C₁₈H₂₃N₅O₃
methyl 2-(1H-indole-3-carboxamido)thiophene-3-carboxylate	methyl 2-(1H-indole-3-carboxamido)thiophene-3-carboxylate	分子量：300.3 密度：N/A 沸点：N/A 熔点：N/A	1171512-44-9	C₁₅H₁₂N₂O₃S
Methyl 2-(5-phenylisoxazole-3-carboxamido)thiophene-3-carboxylate	Methyl 2-(5-phenylisoxazole-3-carboxamido)thiophene-3-carboxylate	分子量：328.3 密度：N/A 沸点：N/A 熔点：N/A	1172416-65-7	C₁₆H₁₂N₂O₄S
(2-Methyl-3-nitrophenyl)[4-[4-(methylsulfonyl)-2-benzothiazolyl]-1-piperazinyl]methanone	(2-Methyl-3-nitrophenyl)[4-[4-(methylsulfonyl)-2-benzothiazolyl]-1-piperazinyl]methanone	分子量：460.5 密度：N/A 沸点：N/A 熔点：N/A	1170110-06-1	C₂₀H₂₀N₄O₅S₂
(5-Chloro-2-methoxyphenyl)(4-(6-(methylthio)benzo[d]thiazol-2-yl)piperazin-1-yl)methanone	(5-Chloro-2-methoxyphenyl)(4-(6-(methylthio)benzo[d]thiazol-2-yl)piperazin-1-yl)methanone	分子量：434.0 密度：N/A 沸点：N/A 熔点：N/A	1170445-28-9	C₂₀H₂₀ClN₃O₂S₂
1-(3-fluorophenyl)-N-[3-methoxy-4-(2-oxopyrrolidin-1-yl)phenyl]methanesulfonamide	1-(3-fluorophenyl)-N-[3-methoxy-4-(2-oxopyrrolidin-1-yl)phenyl]methanesulfonamide	分子量：378.4 密度：N/A 沸点：N/A 熔点：N/A	1251687-40-7	C₁₈H₁₉FN₂O₄S
2-(Pyridin-2-yl)-1,2,3,4-tetrahydroisoquinoline	2-(Pyridin-2-yl)-1,2,3,4-tetrahydroisoquinoline	分子量：210.27 密度：N/A 沸点：N/A 熔点：N/A	380500-15-2	C₁₄H₁₄N₂
N-(cyclobutylmethyl)-1,3-dimethyl-4-nitro-1H-pyrazol-5-amine	N-(cyclobutylmethyl)-1,3-dimethyl-4-nitro-1H-pyrazol-5-amine	分子量：224.26 密度：N/A 沸点：N/A 熔点：N/A	1157095-14-1	C₁₀H₁₆N₄O₂
tert-Butyl-2-(4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl)acetate	tert-Butyl-2-(4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl)acetate	分子量：803.9 密度：N/A 沸点：N/A 熔点：N/A	1174546-71-4	C₁₈H₁₆I₄O₄
2-Chloro-4-iodobenzene-1-sulfonyl chloride	2-Chloro-4-iodobenzene-1-sulfonyl chloride	分子量：336.96 密度：N/A 沸点：N/A 熔点：N/A	1099660-72-6	C₆H₃Cl₂IO₂S
2,5-Dimethyl-N-(2-phenoxypropyl)aniline	2,5-Dimethyl-N-(2-phenoxypropyl)aniline	分子量：255.35 密度：N/A 沸点：N/A 熔点：N/A	1040687-45-3	C₁₇H₂₁NO
2-Bromo-4-(propan-2-yl)pyrimidine	2-Bromo-4-(propan-2-yl)pyrimidine	分子量：201.06 密度：N/A 沸点：N/A 熔点：N/A	1215071-93-4	C₇H₉BrN₂
1-Bromo-2,2,3,3-tetramethylcyclopropane-1-carboxamide	1-Bromo-2,2,3,3-tetramethylcyclopropane-1-carboxamide	分子量：220.11 密度：N/A 沸点：N/A 熔点：N/A	1050497-04-5	C₈H₁₄BrNO
5-Bromo-2-(tetrahydro-furan-3-yloxy)-pyrimidine	5-Bromo-2-(tetrahydro-furan-3-yloxy)-pyrimidine	分子量：245.07 密度：N/A 沸点：N/A 熔点：N/A	1260883-04-2	C₈H₉BrN₂O₂
tert-Butyl 3-chloro-1H-pyrrolo[2,3-b]pyridine-1-carboxylate	tert-Butyl 3-chloro-1H-pyrrolo[2,3-b]pyridine-1-carboxylate	分子量：252.69 密度：N/A 沸点：N/A 熔点：N/A	1093759-47-7	C₁₂H₁₃ClN₂O₂
5-chloro-N-[4-methyl-3-(2-oxopyrrolidin-1-yl)phenyl]thiophene-2-carboxamide	5-chloro-N-[4-methyl-3-(2-oxopyrrolidin-1-yl)phenyl]thiophene-2-carboxamide	分子量：334.8 密度：N/A 沸点：N/A 熔点：N/A	1327560-08-6	C₁₆H₁₅ClN₂O₂S
5-Methyl-1-(pyridin-3-ylmethyl)-1H-benzo[d]imidazol-2-amine	5-Methyl-1-(pyridin-3-ylmethyl)-1H-benzo[d]imidazol-2-amine	分子量：238.29 密度：N/A 沸点：N/A 熔点：N/A	1155597-16-2	C₁₄H₁₄N₄
1-(aminomethyl)-4-ethylCyclohexanol	1-(aminomethyl)-4-ethylCyclohexanol	分子量：157.25 密度：N/A 沸点：N/A 熔点：N/A	1154150-91-0	C₉H₁₉NO