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-[(3-Methyl-4-phenylphenyl)methyl]but-2-ynamide	N-[(3-Methyl-4-phenylphenyl)methyl]but-2-ynamide	分子量：263.3 密度：N/A 沸点：N/A 熔点：N/A	2411241-31-9	C₁₈H₁₇NO
N-(6-Phenyl-2,3-dihydro-1H-inden-1-yl)but-2-ynamide	N-(6-Phenyl-2,3-dihydro-1H-inden-1-yl)but-2-ynamide	分子量：275.3 密度：N/A 沸点：N/A 熔点：N/A	2411315-07-4	C₁₉H₁₇NO
N-[(6-Phenyl-4,5,6,7-tetrahydro-1,3-benzothiazol-2-yl)methyl]but-2-ynamide	N-[(6-Phenyl-4,5,6,7-tetrahydro-1,3-benzothiazol-2-yl)methyl]but-2-ynamide	分子量：310.4 密度：N/A 沸点：N/A 熔点：N/A	2411195-47-4	C₁₈H₁₈N₂OS
N-(4-Hydroxy-4-pyridin-3-ylcyclohexyl)but-2-ynamide	N-(4-Hydroxy-4-pyridin-3-ylcyclohexyl)but-2-ynamide	分子量：258.32 密度：N/A 沸点：N/A 熔点：N/A	2411272-35-8	C₁₅H₁₈N₂O₂
N-[2-[Benzyl(methyl)amino]-2-cyclopropylethyl]but-2-ynamide	N-[2-[Benzyl(methyl)amino]-2-cyclopropylethyl]but-2-ynamide	分子量：270.37 密度：N/A 沸点：N/A 熔点：N/A	2411253-60-4	C₁₇H₂₂N₂O
N-Methyl-N-[(2-methyl-5,6,7,8-tetrahydroimidazo[1,2-a]pyridin-6-yl)methyl]but-2-ynamide	N-Methyl-N-[(2-methyl-5,6,7,8-tetrahydroimidazo[1,2-a]pyridin-6-yl)methyl]but-2-ynamide	分子量：245.32 密度：N/A 沸点：N/A 熔点：N/A	2411290-49-6	C₁₄H₁₉N₃O
N-[1-(3,4-Difluorophenyl)-2-methylprop-2-enyl]but-2-ynamide	N-[1-(3,4-Difluorophenyl)-2-methylprop-2-enyl]but-2-ynamide	分子量：249.26 密度：N/A 沸点：N/A 熔点：N/A	2411306-43-7	C₁₄H₁₃F₂NO
N-[2-(2-Methoxyphenyl)-2-propan-2-yloxyethyl]but-2-ynamide	N-[2-(2-Methoxyphenyl)-2-propan-2-yloxyethyl]but-2-ynamide	分子量：275.34 密度：N/A 沸点：N/A 熔点：N/A	2411293-25-7	C₁₆H₂₁NO₃
N-Methyl-N-[(2-methyl-4,5,6,7-tetrahydro-1,3-benzothiazol-4-yl)methyl]but-2-ynamide	N-Methyl-N-[(2-methyl-4,5,6,7-tetrahydro-1,3-benzothiazol-4-yl)methyl]but-2-ynamide	分子量：262.37 密度：N/A 沸点：N/A 熔点：N/A	2411269-11-7	C₁₄H₁₈N₂OS
N-[[1-[(3-Fluorophenyl)methyl]-1,2,4-triazol-3-yl]methyl]but-2-ynamide	N-[[1-[(3-Fluorophenyl)methyl]-1,2,4-triazol-3-yl]methyl]but-2-ynamide	分子量：272.28 密度：N/A 沸点：N/A 熔点：N/A	2411242-87-8	C₁₄H₁₃FN₄O
N-(2,2-Difluoroethyl)-N-(3,4-dihydro-2H-pyran-2-ylmethyl)but-2-ynamide	N-(2,2-Difluoroethyl)-N-(3,4-dihydro-2H-pyran-2-ylmethyl)but-2-ynamide	分子量：243.25 密度：N/A 沸点：N/A 熔点：N/A	2411256-90-9	C₁₂H₁₅F₂NO₂
N-[2-(4-Methylphenyl)ethyl]-N-(oxolan-2-ylmethyl)but-2-ynamide	N-[2-(4-Methylphenyl)ethyl]-N-(oxolan-2-ylmethyl)but-2-ynamide	分子量：285.4 密度：N/A 沸点：N/A 熔点：N/A	2411275-17-5	C₁₈H₂₃NO₂
N-[2-(2-Methylmorpholin-4-yl)-2-thiophen-2-ylethyl]but-2-ynamide	N-[2-(2-Methylmorpholin-4-yl)-2-thiophen-2-ylethyl]but-2-ynamide	分子量：292.4 密度：N/A 沸点：N/A 熔点：N/A	2411235-88-4	C₁₅H₂₀N₂O₂S
N-[(4-Chlorophenyl)-pyridin-4-ylmethyl]-N-methylbut-2-ynamide	N-[(4-Chlorophenyl)-pyridin-4-ylmethyl]-N-methylbut-2-ynamide	分子量：298.8 密度：N/A 沸点：N/A 熔点：N/A	2411304-85-1	C₁₇H₁₅ClN₂O
N-(3,3-Dimethyl-1-pyridin-2-ylbutan-2-yl)-N-methylbut-2-ynamide	N-(3,3-Dimethyl-1-pyridin-2-ylbutan-2-yl)-N-methylbut-2-ynamide	分子量：258.36 密度：N/A 沸点：N/A 熔点：N/A	2411290-87-2	C₁₆H₂₂N₂O
N-Methyl-N-[2-[1-(1-methylpiperidin-4-yl)piperidin-4-yl]ethyl]but-2-ynamide	N-Methyl-N-[2-[1-(1-methylpiperidin-4-yl)piperidin-4-yl]ethyl]but-2-ynamide	分子量：305.5 密度：N/A 沸点：N/A 熔点：N/A	2411310-60-4	C₁₈H₃₁N₃O
N-[(1-benzothiophen-3-yl)(2-methylcyclopropyl)methyl]-N-methylbut-2-ynamide	N-[(1-benzothiophen-3-yl)(2-methylcyclopropyl)methyl]-N-methylbut-2-ynamide	分子量：297.4 密度：N/A 沸点：N/A 熔点：N/A	2411246-61-0	C₁₈H₁₉NOS
N-[2-(2-Methylphenoxy)propyl]but-2-ynamide	N-[2-(2-Methylphenoxy)propyl]but-2-ynamide	分子量：231.29 密度：N/A 沸点：N/A 熔点：N/A	2411286-23-0	C₁₄H₁₇NO₂
N-(1-Benzylpiperidin-3-yl)but-2-ynamide	N-(1-Benzylpiperidin-3-yl)but-2-ynamide	分子量：256.34 密度：N/A 沸点：N/A 熔点：N/A	2411235-92-0	C₁₆H₂₀N₂O
N-[[2-(Dimethylsulfamoyl)-6-fluorophenyl]methyl]but-2-ynamide	N-[[2-(Dimethylsulfamoyl)-6-fluorophenyl]methyl]but-2-ynamide	分子量：298.34 密度：N/A 沸点：N/A 熔点：N/A	2411265-36-4	C₁₃H₁₅FN₂O₃S
N-[(2-Cyclopentyloxy-4-methoxyphenyl)methyl]but-2-ynamide	N-[(2-Cyclopentyloxy-4-methoxyphenyl)methyl]but-2-ynamide	分子量：287.35 密度：N/A 沸点：N/A 熔点：N/A	2411299-55-1	C₁₇H₂₁NO₃
N-(2-Methyl-5,6,7,8-tetrahydro-[1,2,4]triazolo[1,5-a]pyridin-8-yl)but-2-ynamide	N-(2-Methyl-5,6,7,8-tetrahydro-[1,2,4]triazolo[1,5-a]pyridin-8-yl)but-2-ynamide	分子量：218.26 密度：N/A 沸点：N/A 熔点：N/A	2411255-86-0	C₁₁H₁₄N₄O
N-[1-(Oxan-4-yl)propan-2-yl]but-2-ynamide	N-[1-(Oxan-4-yl)propan-2-yl]but-2-ynamide	分子量：209.28 密度：N/A 沸点：N/A 熔点：N/A	2411288-20-3	C₁₂H₁₉NO₂
N-(Oxolan-3-yl)-N-(2-phenylethyl)but-2-ynamide	N-(Oxolan-3-yl)-N-(2-phenylethyl)but-2-ynamide	分子量：257.33 密度：N/A 沸点：N/A 熔点：N/A	2411226-36-1	C₁₆H₁₉NO₂
N-[[4-(3,4-Difluorophenoxy)pyridin-2-yl]methyl]but-2-ynamide	N-[[4-(3,4-Difluorophenoxy)pyridin-2-yl]methyl]but-2-ynamide	分子量：302.27 密度：N/A 沸点：N/A 熔点：N/A	2411298-20-7	C₁₆H₁₂F₂N₂O₂
N-[1-Cyclopropyl-2-(5,6-dimethylbenzimidazol-1-yl)ethyl]but-2-ynamide	N-[1-Cyclopropyl-2-(5,6-dimethylbenzimidazol-1-yl)ethyl]but-2-ynamide	分子量：295.4 密度：N/A 沸点：N/A 熔点：N/A	2411239-37-5	C₁₈H₂₁N₃O
N-Methyl-N-[1-(4-phenylphenyl)ethyl]but-2-ynamide	N-Methyl-N-[1-(4-phenylphenyl)ethyl]but-2-ynamide	分子量：277.4 密度：N/A 沸点：N/A 熔点：N/A	2411312-75-7	C₁₉H₁₉NO
N-(3-Phenylcyclobutyl)but-2-ynamide	N-(3-Phenylcyclobutyl)but-2-ynamide	分子量：213.27 密度：N/A 沸点：N/A 熔点：N/A	2411306-83-5	C₁₄H₁₅NO
N-{[(3,4-dihydro-2H-1-benzopyran-4-yl)carbamoyl]methyl}but-2-ynamide	N-{[(3,4-dihydro-2H-1-benzopyran-4-yl)carbamoyl]methyl}but-2-ynamide	分子量：272.30 密度：N/A 沸点：N/A 熔点：N/A	2411276-47-4	C₁₅H₁₆N₂O₃
N-[(2-Prop-1-en-2-yloxolan-3-yl)methyl]but-2-ynamide	N-[(2-Prop-1-en-2-yloxolan-3-yl)methyl]but-2-ynamide	分子量：207.27 密度：N/A 沸点：N/A 熔点：N/A	2411307-20-3	C₁₂H₁₇NO₂
N-[1-(2,5-Difluorophenyl)-2,2-difluoroethyl]but-2-ynamide	N-[1-(2,5-Difluorophenyl)-2,2-difluoroethyl]but-2-ynamide	分子量：259.20 密度：N/A 沸点：N/A 熔点：N/A	2411241-42-2	C₁₂H₉F₄NO
N-[(1R)-1-(4-Methylsulfanylphenyl)ethyl]but-2-ynamide	N-[(1R)-1-(4-Methylsulfanylphenyl)ethyl]but-2-ynamide	分子量：233.33 密度：N/A 沸点：N/A 熔点：N/A	2411181-26-3	C₁₃H₁₅NOS
N-(3-oxo-octahydroindolizin-1-yl)but-2-ynamide	N-(3-oxo-octahydroindolizin-1-yl)but-2-ynamide	分子量：220.27 密度：N/A 沸点：N/A 熔点：N/A	2411279-87-1	C₁₂H₁₆N₂O₂
(5,6-Dichloropyridin-3-yl)-(5-methylsulfonyl-3,4-dihydro-2H-quinolin-1-yl)methanone	(5,6-Dichloropyridin-3-yl)-(5-methylsulfonyl-3,4-dihydro-2H-quinolin-1-yl)methanone	分子量：385.3 密度：N/A 沸点：N/A 熔点：N/A	2411236-11-6	C₁₆H₁₄Cl₂N₂O₃S
N-Cyclopropyl-N-[[4-(1,2,4-triazol-1-yl)phenyl]methyl]but-2-ynamide	N-Cyclopropyl-N-[[4-(1,2,4-triazol-1-yl)phenyl]methyl]but-2-ynamide	分子量：280.32 密度：N/A 沸点：N/A 熔点：N/A	2411224-67-2	C₁₆H₁₆N₄O
(6-Fluoropyridin-3-yl)-(7-methylsulfonyl-3,4-dihydro-2H-quinolin-1-yl)methanone	(6-Fluoropyridin-3-yl)-(7-methylsulfonyl-3,4-dihydro-2H-quinolin-1-yl)methanone	分子量：334.4 密度：N/A 沸点：N/A 熔点：N/A	2411235-87-3	C₁₆H₁₅FN₂O₃S
(4-Chloro-3,5-dimethylphenyl) 4-nitrobenzenesulfonate	(4-Chloro-3,5-dimethylphenyl) 4-nitrobenzenesulfonate	分子量：341.8 密度：N/A 沸点：N/A 熔点：N/A	2415561-77-0	C₁₄H₁₂ClNO₅S
N-(Cyanomethyl)-N-cyclopentyl-5-[4-(trifluoromethyl)phenyl]furan-2-carboxamide	N-(Cyanomethyl)-N-cyclopentyl-5-[4-(trifluoromethyl)phenyl]furan-2-carboxamide	分子量：362.3 密度：N/A 沸点：N/A 熔点：N/A	2418712-93-1	C₁₉H₁₇F₃N₂O₂
N-(3-(2-Fluorophenyl)-1H-1,2,4-triazol-5-yl)-1-methyl-1H-pyrazole-4-carboxamide	N-(3-(2-Fluorophenyl)-1H-1,2,4-triazol-5-yl)-1-methyl-1H-pyrazole-4-carboxamide	分子量：286.26 密度：N/A 沸点：N/A 熔点：N/A	2419655-13-1	C₁₃H₁₁FN₆O
2-Chloro-1-[4-(4-propan-2-ylbenzoyl)piperazin-1-yl]propan-1-one	2-Chloro-1-[4-(4-propan-2-ylbenzoyl)piperazin-1-yl]propan-1-one	分子量：322.8 密度：N/A 沸点：N/A 熔点：N/A	2411319-35-0	C₁₇H₂₃ClN₂O₂
2-Chloro-N-(2,3-dihydro-1,4-benzodioxin-3-ylmethyl)-N-propylpropanamide	2-Chloro-N-(2,3-dihydro-1,4-benzodioxin-3-ylmethyl)-N-propylpropanamide	分子量：297.78 密度：N/A 沸点：N/A 熔点：N/A	2411292-26-5	C₁₅H₂₀ClNO₃
2-Chloro-N-[(6-chloroimidazo[2,1-b][1,3]thiazol-5-yl)methyl]-N-methylacetamide	2-Chloro-N-[(6-chloroimidazo[2,1-b][1,3]thiazol-5-yl)methyl]-N-methylacetamide	分子量：278.16 密度：N/A 沸点：N/A 熔点：N/A	2411218-10-3	C₉H₉Cl₂N₃OS
2-Chloro-1-(4-(3-(difluoromethoxy)benzoyl)piperazin-1-yl)propan-1-one	2-Chloro-1-(4-(3-(difluoromethoxy)benzoyl)piperazin-1-yl)propan-1-one	分子量：346.75 密度：N/A 沸点：N/A 熔点：N/A	2411245-37-7	C₁₅H₁₇ClF₂N₂O₃
2-Chloro-N-(1-sulfamoyl-2,3-dihydroindol-6-yl)propanamide	2-Chloro-N-(1-sulfamoyl-2,3-dihydroindol-6-yl)propanamide	分子量：303.77 密度：N/A 沸点：N/A 熔点：N/A	2411297-31-7	C₁₁H₁₄ClN₃O₃S
1-(2-Chloropropanoyl)-N-pentan-2-ylpiperidine-3-carboxamide	1-(2-Chloropropanoyl)-N-pentan-2-ylpiperidine-3-carboxamide	分子量：288.81 密度：N/A 沸点：N/A 熔点：N/A	2411245-79-7	C₁₄H₂₅ClN₂O₂
2-Chloro-N-[[2-[4-(imidazol-1-ylmethyl)phenyl]phenyl]methyl]propanamide	2-Chloro-N-[[2-[4-(imidazol-1-ylmethyl)phenyl]phenyl]methyl]propanamide	分子量：353.8 密度：N/A 沸点：N/A 熔点：N/A	2411194-75-5	C₂₀H₂₀ClN₃O
2-chloro-N-[cyano(2,4-dimethoxyphenyl)methyl]acetamide	2-chloro-N-[cyano(2,4-dimethoxyphenyl)methyl]acetamide	分子量：268.69 密度：N/A 沸点：N/A 熔点：N/A	2411305-97-8	C₁₂H₁₃ClN₂O₃
2-Chloro-N-[2-[2-(dimethylamino)-4-methyl-1,3-thiazol-5-yl]ethyl]propanamide	2-Chloro-N-[2-[2-(dimethylamino)-4-methyl-1,3-thiazol-5-yl]ethyl]propanamide	分子量：275.80 密度：N/A 沸点：N/A 熔点：N/A	2411229-39-3	C₁₁H₁₈ClN₃OS
2-Chloro-N-[1-(2-chlorophenyl)-2-oxopyrrolidin-3-yl]-N-methylpropanamide	2-Chloro-N-[1-(2-chlorophenyl)-2-oxopyrrolidin-3-yl]-N-methylpropanamide	分子量：315.2 密度：N/A 沸点：N/A 熔点：N/A	2411195-70-3	C₁₄H₁₆Cl₂N₂O₂
2-Chloro-N-[[6-(4-ethylpiperazin-1-yl)pyridin-3-yl]methyl]propanamide	2-Chloro-N-[[6-(4-ethylpiperazin-1-yl)pyridin-3-yl]methyl]propanamide	分子量：310.82 密度：N/A 沸点：N/A 熔点：N/A	2411290-44-1	C₁₅H₂₃ClN₄O