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
5-(4-fluorobenzyl)-3-oxo-2-phenyl-N-(thiazol-2-yl)-3,5-dihydro-2H-pyrazolo[4,3-c]pyridine-7-carboxamide	5-(4-fluorobenzyl)-3-oxo-2-phenyl-N-(thiazol-2-yl)-3,5-dihydro-2H-pyrazolo[4,3-c]pyridine-7-carboxamide	分子量：445.5 密度：N/A 沸点：N/A 熔点：N/A	921831-39-2	C₂₃H₁₆FN₅O₂S
N-(3,3-dimethyl-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepin-7-yl)-2-(4-methylphenoxy)acetamide	N-(3,3-dimethyl-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepin-7-yl)-2-(4-methylphenoxy)acetamide	分子量：354.4 密度：N/A 沸点：N/A 熔点：N/A	921524-02-9	C₂₀H₂₂N₂O₄
4-(dimethylamino)-N-[5-(3,4,5-triethoxyphenyl)-1,3,4-oxadiazol-2-yl]benzamide	4-(dimethylamino)-N-[5-(3,4,5-triethoxyphenyl)-1,3,4-oxadiazol-2-yl]benzamide	分子量：440.5 密度：N/A 沸点：N/A 熔点：N/A	891129-77-4	C₂₃H₂₈N₄O₅
1-(3,4-Dimethylphenyl)-4-(dimethylsulfamoylamino)-2-oxopyrrolidine	1-(3,4-Dimethylphenyl)-4-(dimethylsulfamoylamino)-2-oxopyrrolidine	分子量：311.40 密度：N/A 沸点：N/A 熔点：N/A	905685-01-0	C₁₄H₂₁N₃O₃S
2-(4-(4-Methoxyphenylsulfonamido)benzamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide	2-(4-(4-Methoxyphenylsulfonamido)benzamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide	分子量：485.6 密度：N/A 沸点：N/A 熔点：N/A	886911-07-5	C₂₃H₂₃N₃O₅S₂
N-(5-(5,6-dihydro-1,4-dioxin-2-yl)-1,3,4-oxadiazol-2-yl)-4-(4-methoxyphenylsulfonamido)benzamide	N-(5-(5,6-dihydro-1,4-dioxin-2-yl)-1,3,4-oxadiazol-2-yl)-4-(4-methoxyphenylsulfonamido)benzamide	分子量：458.4 密度：N/A 沸点：N/A 熔点：N/A	886912-42-1	C₂₀H₁₈N₄O₇S
3-phenyl-6-(p-tolyl)-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazine hydrobromide	3-phenyl-6-(p-tolyl)-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazine hydrobromide	分子量：387.3 密度：N/A 沸点：N/A 熔点：N/A	1179473-63-2	C₁₇H₁₅BrN₄S
3-fluoro-N-(2-methyl-4-(thiazolo[5,4-b]pyridin-2-yl)phenyl)benzenesulfonamide	3-fluoro-N-(2-methyl-4-(thiazolo[5,4-b]pyridin-2-yl)phenyl)benzenesulfonamide	分子量：399.5 密度：N/A 沸点：N/A 熔点：N/A	896679-25-7	C₁₉H₁₄FN₃O₂S₂
(1S,2R,4R,5S)-cyclohexane-1,2,4,5-tetrol	(1S,2R,4R,5S)-cyclohexane-1,2,4,5-tetrol	分子量：148.16 密度：N/A 沸点：N/A 熔点：N/A	45775-30-2	C₆H₁₂O₄
(2-Cycloheptylideneethyl)trimethylsilane	(2-Cycloheptylideneethyl)trimethylsilane	分子量：196.40 密度：N/A 沸点：N/A 熔点：N/A	138061-12-8	C₁₂H₂₄Si
ethyl 5-(2-hydroxy-3-(piperazin-1-yl)propoxy)-2-methyl-1-(p-tolyl)-1H-indole-3-carboxylate dihydrochloride	ethyl 5-(2-hydroxy-3-(piperazin-1-yl)propoxy)-2-methyl-1-(p-tolyl)-1H-indole-3-carboxylate dihydrochloride	分子量：524.5 密度：N/A 沸点：N/A 熔点：N/A	1189996-09-5	C₂₆H₃₅Cl₂N₃O₄
5-chloro-N-(6-fluorobenzo[d]thiazol-2-yl)-N-(2-morpholinoethyl)thiophene-2-carboxamide hydrochloride	5-chloro-N-(6-fluorobenzo[d]thiazol-2-yl)-N-(2-morpholinoethyl)thiophene-2-carboxamide hydrochloride	分子量：462.4 密度：N/A 沸点：N/A 熔点：N/A	1217068-69-3	C₁₈H₁₈Cl₂FN₃O₂S₂
6-(((1-methyl-1H-imidazol-2-yl)thio)methyl)-4-oxo-4H-pyran-3-yl 5-bromo-2-chlorobenzoate	6-(((1-methyl-1H-imidazol-2-yl)thio)methyl)-4-oxo-4H-pyran-3-yl 5-bromo-2-chlorobenzoate	分子量：455.7 密度：N/A 沸点：N/A 熔点：N/A	896309-41-4	C₁₇H₁₂BrClN₂O₄S
N-(3-cyano-6-isopropyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridin-2-yl)-4-(N,N-dipropylsulfamoyl)benzamide hydrochloride	N-(3-cyano-6-isopropyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridin-2-yl)-4-(N,N-dipropylsulfamoyl)benzamide hydrochloride	分子量：525.1 密度：N/A 沸点：N/A 熔点：N/A	1216472-13-7	C₂₄H₃₃ClN₄O₃S₂
2-Benzamido-6-isopropyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxamide hydrochloride	2-Benzamido-6-isopropyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxamide hydrochloride	分子量：379.9 密度：N/A 沸点：N/A 熔点：N/A	1216899-53-4	C₁₈H₂₂ClN₃O₂S
N-(3,4-dimethoxyphenethyl)-2-((3-(4-fluorobenzyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl)thio)acetamide	N-(3,4-dimethoxyphenethyl)-2-((3-(4-fluorobenzyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl)thio)acetamide	分子量：482.5 密度：N/A 沸点：N/A 熔点：N/A	863458-06-4	C₂₃H₂₃FN₆O₃S
2-(4-(N-butyl-N-ethylsulfamoyl)benzamido)-6-isopropyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxamide hydrochloride	2-(4-(N-butyl-N-ethylsulfamoyl)benzamido)-6-isopropyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxamide hydrochloride	分子量：543.1 密度：N/A 沸点：N/A 熔点：N/A	1215645-52-5	C₂₄H₃₅ClN₄O₄S₂
N-(2-(benzo[d]thiazol-2-yl)phenyl)-1-((4-fluorophenyl)sulfonyl)pyrrolidine-2-carboxamide	N-(2-(benzo[d]thiazol-2-yl)phenyl)-1-((4-fluorophenyl)sulfonyl)pyrrolidine-2-carboxamide	分子量：481.6 密度：N/A 沸点：N/A 熔点：N/A	1049946-72-6	C₂₄H₂₀FN₃O₃S₂
3-(Benzenesulfonyl)-1-[4-[3-(benzenesulfonyl)propanoyl]piperazin-1-yl]propan-1-one	3-(Benzenesulfonyl)-1-[4-[3-(benzenesulfonyl)propanoyl]piperazin-1-yl]propan-1-one	分子量：478.6 密度：N/A 沸点：N/A 熔点：N/A	868677-76-3	C₂₂H₂₆N₂O₆S₂
N-[2-(furan-2-yl)-2-[4-(4-methoxyphenyl)piperazin-1-yl]ethyl]-3-methylbenzamide	N-[2-(furan-2-yl)-2-[4-(4-methoxyphenyl)piperazin-1-yl]ethyl]-3-methylbenzamide	分子量：419.5 密度：N/A 沸点：N/A 熔点：N/A	877647-83-1	C₂₅H₂₉N₃O₃
5-chloro-N-(4,7-dimethoxybenzo[d]thiazol-2-yl)-N-(2-(dimethylamino)ethyl)thiophene-2-carboxamide hydrochloride	5-chloro-N-(4,7-dimethoxybenzo[d]thiazol-2-yl)-N-(2-(dimethylamino)ethyl)thiophene-2-carboxamide hydrochloride	分子量：462.4 密度：N/A 沸点：N/A 熔点：N/A	1215716-50-9	C₁₈H₂₁Cl₂N₃O₃S₂
1-(1-(4-Methoxyphenyl)-5-oxopyrrolidin-3-yl)-3-(3-(piperidin-1-yl)propyl)urea	1-(1-(4-Methoxyphenyl)-5-oxopyrrolidin-3-yl)-3-(3-(piperidin-1-yl)propyl)urea	分子量：374.5 密度：N/A 沸点：N/A 熔点：N/A	894033-57-9	C₂₀H₃₀N₄O₃
N-[1-(3-fluorophenyl)-5-oxopyrrolidin-3-yl]-4-methylpiperazine-1-carboxamide	N-[1-(3-fluorophenyl)-5-oxopyrrolidin-3-yl]-4-methylpiperazine-1-carboxamide	分子量：320.36 密度：N/A 沸点：N/A 熔点：N/A	887212-49-9	C₁₆H₂₁FN₄O₂
N-(1-ethyl-2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)-2,5-dimethoxybenzene-1-sulfonamide	N-(1-ethyl-2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)-2,5-dimethoxybenzene-1-sulfonamide	分子量：390.5 密度：N/A 沸点：N/A 熔点：N/A	922026-10-6	C₁₉H₂₂N₂O₅S
N-(2-((3,4-dihydroisoquinolin-2(1H)-yl)sulfonyl)ethyl)butyramide	N-(2-((3,4-dihydroisoquinolin-2(1H)-yl)sulfonyl)ethyl)butyramide	分子量：310.4 密度：N/A 沸点：N/A 熔点：N/A	922114-91-8	C₁₅H₂₂N₂O₃S
2-((6-(benzo[d][1,3]dioxol-5-yl)pyridazin-3-yl)thio)-N-(benzo[d][1,3]dioxol-5-ylmethyl)acetamide	2-((6-(benzo[d][1,3]dioxol-5-yl)pyridazin-3-yl)thio)-N-(benzo[d][1,3]dioxol-5-ylmethyl)acetamide	分子量：423.4 密度：N/A 沸点：N/A 熔点：N/A	872695-50-6	C₂₁H₁₇N₃O₅S
N1-(2-(1-ethyl-1,2,3,4-tetrahydroquinolin-6-yl)ethyl)-N2-(p-tolyl)oxalamide	N1-(2-(1-ethyl-1,2,3,4-tetrahydroquinolin-6-yl)ethyl)-N2-(p-tolyl)oxalamide	分子量：365.5 密度：N/A 沸点：N/A 熔点：N/A	955774-00-2	C₂₂H₂₇N₃O₂
2-(2,4-dichlorophenoxy)-N-(4-((methylthio)methyl)thiazol-2-yl)acetamide	2-(2,4-dichlorophenoxy)-N-(4-((methylthio)methyl)thiazol-2-yl)acetamide	分子量：363.3 密度：N/A 沸点：N/A 熔点：N/A	942009-63-4	C₁₃H₁₂Cl₂N₂O₂S₂
2-(4-methoxyphenylsulfonamido)-4-methyl-N-phenethylthiazole-5-carboxamide	2-(4-methoxyphenylsulfonamido)-4-methyl-N-phenethylthiazole-5-carboxamide	分子量：431.5 密度：N/A 沸点：N/A 熔点：N/A	942004-24-2	C₂₀H₂₁N₃O₄S₂
N-(benzo[d][1,3]dioxol-5-ylmethyl)-2-(2-methyl-5-((2-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)acetamide	N-(benzo[d][1,3]dioxol-5-ylmethyl)-2-(2-methyl-5-((2-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)acetamide	分子量：420.5 密度：N/A 沸点：N/A 熔点：N/A	946205-25-0	C₂₄H₂₄N₂O₅
4-(6-(Methylsulfonyl)benzo[d]thiazol-2-yl)morpholine hydrochloride	4-(6-(Methylsulfonyl)benzo[d]thiazol-2-yl)morpholine hydrochloride	分子量：334.8 密度：N/A 沸点：N/A 熔点：N/A	1215637-15-2	C₁₂H₁₅ClN₂O₃S₂
7-butyl-3-methyl-1-(2-morpholinoethyl)-8-(3,4,5-trimethyl-1H-pyrazol-1-yl)-1H-purine-2,6(3H,7H)-dione	7-butyl-3-methyl-1-(2-morpholinoethyl)-8-(3,4,5-trimethyl-1H-pyrazol-1-yl)-1H-purine-2,6(3H,7H)-dione	分子量：443.5 密度：N/A 沸点：N/A 熔点：N/A	1013762-75-8	C₂₂H₃₃N₇O₃
N-(2,4-difluorophenyl)-2-(2-methyl-5-((2-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)acetamide	N-(2,4-difluorophenyl)-2-(2-methyl-5-((2-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)acetamide	分子量：398.4 密度：N/A 沸点：N/A 熔点：N/A	946205-21-6	C₂₂H₂₀F₂N₂O₃
N-(benzo[d][1,3]dioxol-5-yl)-2-(2-methyl-5-((2-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)acetamide	N-(benzo[d][1,3]dioxol-5-yl)-2-(2-methyl-5-((2-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)acetamide	分子量：406.4 密度：N/A 沸点：N/A 熔点：N/A	946254-47-3	C₂₃H₂₂N₂O₅
2-(2-(hydroxymethyl)-5-((4-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)-N-methylacetamide	2-(2-(hydroxymethyl)-5-((4-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)-N-methylacetamide	分子量：316.35 密度：N/A 沸点：N/A 熔点：N/A	941993-25-5	C₁₇H₂₀N₂O₄
2-(hydroxymethyl)-5-((2-methylbenzyl)oxy)-1-(2-morpholino-2-oxoethyl)pyridin-4(1H)-one	2-(hydroxymethyl)-5-((2-methylbenzyl)oxy)-1-(2-morpholino-2-oxoethyl)pyridin-4(1H)-one	分子量：372.4 密度：N/A 沸点：N/A 熔点：N/A	946255-15-8	C₂₀H₂₄N₂O₅
7-isopropyl-3-methyl-1-(2-(piperidin-1-yl)ethyl)-8-(3,4,5-trimethyl-1H-pyrazol-1-yl)-1H-purine-2,6(3H,7H)-dione	7-isopropyl-3-methyl-1-(2-(piperidin-1-yl)ethyl)-8-(3,4,5-trimethyl-1H-pyrazol-1-yl)-1H-purine-2,6(3H,7H)-dione	分子量：427.5 密度：N/A 沸点：N/A 熔点：N/A	1014011-85-8	C₂₂H₃₃N₇O₂
7-isopropyl-3-methyl-1-(2-morpholinoethyl)-8-(3,4,5-trimethyl-1H-pyrazol-1-yl)-1H-purine-2,6(3H,7H)-dione	7-isopropyl-3-methyl-1-(2-morpholinoethyl)-8-(3,4,5-trimethyl-1H-pyrazol-1-yl)-1H-purine-2,6(3H,7H)-dione	分子量：429.5 密度：N/A 沸点：N/A 熔点：N/A	1014012-01-1	C₂₁H₃₁N₇O₃
2-(7-(4-fluorobenzyl)-3-methyl-2,6-dioxo-8-(3,4,5-trimethyl-1H-pyrazol-1-yl)-2,3,6,7-tetrahydro-1H-purin-1-yl)acetamide	2-(7-(4-fluorobenzyl)-3-methyl-2,6-dioxo-8-(3,4,5-trimethyl-1H-pyrazol-1-yl)-2,3,6,7-tetrahydro-1H-purin-1-yl)acetamide	分子量：439.4 密度：N/A 沸点：N/A 熔点：N/A	1014009-53-0	C₂₁H₂₂FN₇O₃
N-(2-methylcyclohexyl)-4-oxo-8-phenyl-4,6,7,8-tetrahydroimidazo[2,1-c][1,2,4]triazine-3-carboxamide	N-(2-methylcyclohexyl)-4-oxo-8-phenyl-4,6,7,8-tetrahydroimidazo[2,1-c][1,2,4]triazine-3-carboxamide	分子量：353.4 密度：N/A 沸点：N/A 熔点：N/A	946229-22-7	C₁₉H₂₃N₅O₂
N-(2-methoxybenzyl)-4-oxo-8-phenyl-4,6,7,8-tetrahydroimidazo[2,1-c][1,2,4]triazine-3-carboxamide	N-(2-methoxybenzyl)-4-oxo-8-phenyl-4,6,7,8-tetrahydroimidazo[2,1-c][1,2,4]triazine-3-carboxamide	分子量：377.4 密度：N/A 沸点：N/A 熔点：N/A	946279-00-1	C₂₀H₁₉N₅O₃
6-(2-(4-methylpiperazin-1-yl)-2-oxoethyl)-1-phenyl-6,7-dihydropyrazolo[3,4-d]thiazolo[3,2-a]pyrimidin-4(1H)-one	6-(2-(4-methylpiperazin-1-yl)-2-oxoethyl)-1-phenyl-6,7-dihydropyrazolo[3,4-d]thiazolo[3,2-a]pyrimidin-4(1H)-one	分子量：410.5 密度：N/A 沸点：N/A 熔点：N/A	941889-63-0	C₂₀H₂₂N₆O₂S
4-oxo-8-phenyl-N-(1-phenylethyl)-4,6,7,8-tetrahydroimidazo[2,1-c][1,2,4]triazine-3-carboxamide	4-oxo-8-phenyl-N-(1-phenylethyl)-4,6,7,8-tetrahydroimidazo[2,1-c][1,2,4]triazine-3-carboxamide	分子量：361.4 密度：N/A 沸点：N/A 熔点：N/A	946229-34-1	C₂₀H₁₉N₅O₂
4-oxo-8-phenyl-N-(pyridin-3-ylmethyl)-4,6,7,8-tetrahydroimidazo[2,1-c][1,2,4]triazine-3-carboxamide	4-oxo-8-phenyl-N-(pyridin-3-ylmethyl)-4,6,7,8-tetrahydroimidazo[2,1-c][1,2,4]triazine-3-carboxamide	分子量：348.4 密度：N/A 沸点：N/A 熔点：N/A	946360-17-4	C₁₈H₁₆N₆O₂
4-oxo-N-phenethyl-8-phenyl-4,6,7,8-tetrahydroimidazo[2,1-c][1,2,4]triazine-3-carboxamide	4-oxo-N-phenethyl-8-phenyl-4,6,7,8-tetrahydroimidazo[2,1-c][1,2,4]triazine-3-carboxamide	分子量：361.4 密度：N/A 沸点：N/A 熔点：N/A	946360-21-0	C₂₀H₁₉N₅O₂
4-(N-cyclohexyl-N-methylsulfamoyl)-N-(thieno[2,3-d]pyrimidin-4-yl)benzamide	4-(N-cyclohexyl-N-methylsulfamoyl)-N-(thieno[2,3-d]pyrimidin-4-yl)benzamide	分子量：430.5 密度：N/A 沸点：N/A 熔点：N/A	941877-89-0	C₂₀H₂₂N₄O₃S₂
3,4-dimethoxy-N-(5-oxo-1-phenylpyrrolidin-3-yl)benzenesulfonamide	3,4-dimethoxy-N-(5-oxo-1-phenylpyrrolidin-3-yl)benzenesulfonamide	分子量：376.4 密度：N/A 沸点：N/A 熔点：N/A	896307-22-5	C₁₈H₂₀N₂O₅S
2-(1,1-dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)-N-(4-methoxyphenyl)propanamide	2-(1,1-dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)-N-(4-methoxyphenyl)propanamide	分子量：360.4 密度：N/A 沸点：N/A 熔点：N/A	899757-98-3	C₁₇H₁₆N₂O₅S
4-[(Difluoromethyl)sulfanyl]benzaldehyde	4-[(Difluoromethyl)sulfanyl]benzaldehyde	分子量：188.20 密度：N/A 沸点：N/A 熔点：N/A	73960-05-1	C₈H₆F₂OS
Cyclopropyl(2-phenylmorpholino)methanone	Cyclopropyl(2-phenylmorpholino)methanone	分子量：231.29 密度：N/A 沸点：N/A 熔点：N/A	954066-41-2	C₁₄H₁₇NO₂