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
8-benzoyl-6-benzyl-2,3-dihydro-[1,4]dioxino[2,3-g]quinolin-9(6H)-one	8-benzoyl-6-benzyl-2,3-dihydro-[1,4]dioxino[2,3-g]quinolin-9(6H)-one	分子量：397.4 密度：N/A 沸点：N/A 熔点：N/A	902507-05-5	C₂₅H₁₉NO₄
benzyl (3S)-3-(chlorosulfonyl)pyrrolidine-1-carboxylate	benzyl (3S)-3-(chlorosulfonyl)pyrrolidine-1-carboxylate	分子量：303.76 密度：N/A 沸点：N/A 熔点：N/A	1251071-16-5	C₁₂H₁₄ClNO₄S
(2R)-2-(2-chloro-5-methylphenoxy)propanoic acid	(2R)-2-(2-chloro-5-methylphenoxy)propanoic acid	分子量：214.64 密度：N/A 沸点：N/A 熔点：N/A	30033-96-6	C₁₀H₁₁ClO₃
1-(1,1-Dioxothiolan-3-yl)pyrazol-4-amine	1-(1,1-Dioxothiolan-3-yl)pyrazol-4-amine	分子量：201.25 密度：N/A 沸点：N/A 熔点：N/A	1156602-20-8	C₇H₁₁N₃O₂S
1-(2,4-difluorophenyl)-3,5-dimethyl-1H-pyrazol-4-amine	1-(2,4-difluorophenyl)-3,5-dimethyl-1H-pyrazol-4-amine	分子量：223.22 密度：N/A 沸点：N/A 熔点：N/A	1156602-37-7	C₁₁H₁₁F₂N₃
2-Bromo-N-[(3-methyl-1H-pyrazol-4-yl)methyl]aniline	2-Bromo-N-[(3-methyl-1H-pyrazol-4-yl)methyl]aniline	分子量：266.14 密度：N/A 沸点：N/A 熔点：N/A	1157108-55-8	C₁₁H₁₂BrN₃
2,4-difluoro-N-(2-(1-methyl-1H-pyrrol-2-yl)-2-(4-methylpiperazin-1-yl)ethyl)benzenesulfonamide	2,4-difluoro-N-(2-(1-methyl-1H-pyrrol-2-yl)-2-(4-methylpiperazin-1-yl)ethyl)benzenesulfonamide	分子量：398.5 密度：N/A 沸点：N/A 熔点：N/A	1049420-19-0	C₁₈H₂₄F₂N₄O₂S
2-(2-((2-(4-methoxyphenyl)-2-oxoethyl)thio)thiazol-4-yl)-N-phenylacetamide	2-(2-((2-(4-methoxyphenyl)-2-oxoethyl)thio)thiazol-4-yl)-N-phenylacetamide	分子量：398.5 密度：N/A 沸点：N/A 熔点：N/A	1020980-11-3	C₂₀H₁₈N₂O₃S₂
1-(4-Chloro-3-methoxybenzenesulfonyl)-3,5-dimethylpiperidine	1-(4-Chloro-3-methoxybenzenesulfonyl)-3,5-dimethylpiperidine	分子量：317.8 密度：N/A 沸点：N/A 熔点：N/A	914619-17-3	C₁₄H₂₀ClNO₃S
(3R)-3-[[2-(1,3-Benzodioxol-5-ylcarbonyl)-1H-indol-3-yl]methyl]-1-methyl-2,5-piperazinedione	(3R)-3-[[2-(1,3-Benzodioxol-5-ylcarbonyl)-1H-indol-3-yl]methyl]-1-methyl-2,5-piperazinedione	分子量：405.4 密度：N/A 沸点：N/A 熔点：N/A	1220393-14-5	C₂₂H₁₉N₃O₅
4-[6-(3-Methyl-1,2,4-oxadiazol-5-yl)-2-pyrazol-1-ylpyrido[3,2-d]pyrimidin-4-yl]morpholine	4-[6-(3-Methyl-1,2,4-oxadiazol-5-yl)-2-pyrazol-1-ylpyrido[3,2-d]pyrimidin-4-yl]morpholine	分子量：364.4 密度：N/A 沸点：N/A 熔点：N/A	1220114-56-6	C₁₇H₁₆N₈O₂
1-(2-Methoxy-4,5-dimethylbenzenesulfonyl)-3,5-dimethylpiperidine	1-(2-Methoxy-4,5-dimethylbenzenesulfonyl)-3,5-dimethylpiperidine	分子量：311.4 密度：N/A 沸点：N/A 熔点：N/A	914619-29-7	C₁₆H₂₅NO₃S
4-[6-[3-(Methoxymethyl)-1,2,4-oxadiazol-5-yl]-2-pyrazol-1-ylpyrido[3,2-d]pyrimidin-4-yl]morpholine	4-[6-[3-(Methoxymethyl)-1,2,4-oxadiazol-5-yl]-2-pyrazol-1-ylpyrido[3,2-d]pyrimidin-4-yl]morpholine	分子量：394.4 密度：N/A 沸点：N/A 熔点：N/A	1220114-57-7	C₁₈H₁₈N₈O₃
1-[(4-Butoxynaphthyl)sulfonyl]-3,5-dimethylpiperidine	1-[(4-Butoxynaphthyl)sulfonyl]-3,5-dimethylpiperidine	分子量：375.5 密度：N/A 沸点：N/A 熔点：N/A	1081318-28-6	C₂₁H₂₉NO₃S
N-(4-bromo-2-methylphenyl)-5-methyl-3-(4-methylphenyl)-2,4-dioxo-2,3,4,5-tetrahydro-1H-pyrrolo[3,2-d]pyrimidine-7-carboxamide	N-(4-bromo-2-methylphenyl)-5-methyl-3-(4-methylphenyl)-2,4-dioxo-2,3,4,5-tetrahydro-1H-pyrrolo[3,2-d]pyrimidine-7-carboxamide	分子量：467.3 密度：N/A 沸点：N/A 熔点：N/A	921535-64-0	C₂₂H₁₉BrN₄O₃
5-(2-(benzo[d][1,3]dioxol-5-yl)-2-oxoethyl)-1-(1,1-dioxidotetrahydrothiophen-3-yl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one	5-(2-(benzo[d][1,3]dioxol-5-yl)-2-oxoethyl)-1-(1,1-dioxidotetrahydrothiophen-3-yl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one	分子量：416.4 密度：N/A 沸点：N/A 熔点：N/A	1105210-47-6	C₁₈H₁₆N₄O₆S
4-(4-(benzylsulfonyl)piperazin-1-yl)-6-(1H-pyrazol-1-yl)pyrimidine	4-(4-(benzylsulfonyl)piperazin-1-yl)-6-(1H-pyrazol-1-yl)pyrimidine	分子量：384.5 密度：N/A 沸点：N/A 熔点：N/A	1171383-93-9	C₁₈H₂₀N₆O₂S
4-(1H-pyrazol-1-yl)-6-(4-((4-(trifluoromethyl)phenyl)sulfonyl)piperazin-1-yl)pyrimidine	4-(1H-pyrazol-1-yl)-6-(4-((4-(trifluoromethyl)phenyl)sulfonyl)piperazin-1-yl)pyrimidine	分子量：438.4 密度：N/A 沸点：N/A 熔点：N/A	1171686-65-9	C₁₈H₁₇F₃N₆O₂S
N-(1-(1,1-dioxidotetrahydrothiophen-3-yl)-3-phenyl-1H-pyrazol-5-yl)-4-methylbenzenesulfonamide	N-(1-(1,1-dioxidotetrahydrothiophen-3-yl)-3-phenyl-1H-pyrazol-5-yl)-4-methylbenzenesulfonamide	分子量：431.5 密度：N/A 沸点：N/A 熔点：N/A	1172935-72-6	C₂₀H₂₁N₃O₄S₂
3-Thiophenamine, N-cycloheptyltetrahydro-, 1,1-dioxide	3-Thiophenamine, N-cycloheptyltetrahydro-, 1,1-dioxide	分子量：231.36 密度：N/A 沸点：N/A 熔点：N/A	1019535-32-0	C₁₁H₂₁NO₂S
4-chloro-N-(1-(1,1-dioxidotetrahydrothiophen-3-yl)-3-methyl-1H-pyrazol-5-yl)benzenesulfonamide	4-chloro-N-(1-(1,1-dioxidotetrahydrothiophen-3-yl)-3-methyl-1H-pyrazol-5-yl)benzenesulfonamide	分子量：389.9 密度：N/A 沸点：N/A 熔点：N/A	1170037-99-6	C₁₄H₁₆ClN₃O₄S₂
N-(3-(4-chlorophenyl)-1-(1,1-dioxidotetrahydrothiophen-3-yl)-1H-pyrazol-5-yl)-1H-imidazole-4-sulfonamide	N-(3-(4-chlorophenyl)-1-(1,1-dioxidotetrahydrothiophen-3-yl)-1H-pyrazol-5-yl)-1H-imidazole-4-sulfonamide	分子量：441.9 密度：N/A 沸点：N/A 熔点：N/A	1171567-84-2	C₁₆H₁₆ClN₅O₄S₂
6-Bromo-8-isopropyl-2,2-dimethylchroman	6-Bromo-8-isopropyl-2,2-dimethylchroman	分子量：283.20 密度：N/A 沸点：N/A 熔点：N/A	1220476-09-4	C₁₄H₁₉BrO
N-(prop-2-yn-1-yl)thiolan-3-amine	N-(prop-2-yn-1-yl)thiolan-3-amine	分子量：141.24 密度：N/A 沸点：N/A 熔点：N/A	1019581-95-3	C₇H₁₁NS
N-(2-methoxyethyl)-2-(3-oxo-1,2-benzothiazol-2(3H)-yl)acetamide	N-(2-methoxyethyl)-2-(3-oxo-1,2-benzothiazol-2(3H)-yl)acetamide	分子量：266.32 密度：N/A 沸点：N/A 熔点：N/A	1219574-28-3	C₁₂H₁₄N₂O₃S
[3-(Dimethylamino)propyl](2-methylbutyl)amine	[3-(Dimethylamino)propyl](2-methylbutyl)amine	分子量：172.31 密度：N/A 沸点：N/A 熔点：N/A	1038266-85-1	C₁₀H₂₄N₂
N-(4-bromo-3-methylphenyl)-5-methyl-3-(4-methylphenyl)-2,4-dioxo-2,3,4,5-tetrahydro-1H-pyrrolo[3,2-d]pyrimidine-7-carboxamide	N-(4-bromo-3-methylphenyl)-5-methyl-3-(4-methylphenyl)-2,4-dioxo-2,3,4,5-tetrahydro-1H-pyrrolo[3,2-d]pyrimidine-7-carboxamide	分子量：467.3 密度：N/A 沸点：N/A 熔点：N/A	921579-42-2	C₂₂H₁₉BrN₄O₃
3,5-Dimethyl-1-[(4-propoxynaphthyl)sulfonyl]piperidine	3,5-Dimethyl-1-[(4-propoxynaphthyl)sulfonyl]piperidine	分子量：361.5 密度：N/A 沸点：N/A 熔点：N/A	1081318-36-6	C₂₀H₂₇NO₃S
Ethyl 4-({[1-(6-phenoxypyrimidin-4-yl)piperidin-4-yl]carbonyl}amino)piperidine-1-carboxylate	Ethyl 4-({[1-(6-phenoxypyrimidin-4-yl)piperidin-4-yl]carbonyl}amino)piperidine-1-carboxylate	分子量：453.5 密度：N/A 沸点：N/A 熔点：N/A	1115923-16-4	C₂₄H₃₁N₅O₄
(1S)-1-(2-methyl-1,3-thiazol-5-yl)ethan-1-amine	(1S)-1-(2-methyl-1,3-thiazol-5-yl)ethan-1-amine	分子量：142.22 密度：N/A 沸点：N/A 熔点：N/A	2227873-36-9	C₆H₁₀N₂S
2-Methoxy-N-(3-(pyrrolidin-1-ylmethyl)phenyl)acetamide	2-Methoxy-N-(3-(pyrrolidin-1-ylmethyl)phenyl)acetamide	分子量：248.32 密度：N/A 沸点：N/A 熔点：N/A	1211266-70-4	C₁₄H₂₀N₂O₂
1-[Hexahydro-4-[(4-methylphenyl)methyl]-1H-1,4-diazepin-1-yl]-2-[5-(phenoxymethyl)-2H-tetrazol-2-yl]ethanone	1-[Hexahydro-4-[(4-methylphenyl)methyl]-1H-1,4-diazepin-1-yl]-2-[5-(phenoxymethyl)-2H-tetrazol-2-yl]ethanone	分子量：420.5 密度：N/A 沸点：N/A 熔点：N/A	1209845-97-5	C₂₃H₂₈N₆O₂
3-((M-tolyloxy)methyl)benzamide	3-((M-tolyloxy)methyl)benzamide	分子量：241.28 密度：N/A 沸点：N/A 熔点：N/A	1209870-56-3	C₁₅H₁₅NO₂
Ethyl 1,2-dimethyl-4-phenyl-1H-pyrrole-3-carboxylate	Ethyl 1,2-dimethyl-4-phenyl-1H-pyrrole-3-carboxylate	分子量：243.30 密度：N/A 沸点：N/A 熔点：N/A	872263-96-2	C₁₅H₁₇NO₂
Quinolin-3-ylmethanamine hydrochloride	Quinolin-3-ylmethanamine hydrochloride	分子量：194.66 密度：N/A 沸点：N/A 熔点：N/A	1072806-51-9	C₁₀H₁₁ClN₂
4-(1-Methylethyl)-I+/--phenylbenzeneacetic acid	4-(1-Methylethyl)-I+/--phenylbenzeneacetic acid	分子量：254.32 密度：N/A 沸点：N/A 熔点：N/A	21749-84-8	C₁₇H₁₈O₂
N-{2-[(1,3-benzothiazol-2-yl)amino]ethyl}-5-chloro-2-(methylsulfanyl)pyrimidine-4-carboxamide	N-{2-[(1,3-benzothiazol-2-yl)amino]ethyl}-5-chloro-2-(methylsulfanyl)pyrimidine-4-carboxamide	分子量：379.9 密度：N/A 沸点：N/A 熔点：N/A	1208725-69-2	C₁₅H₁₄ClN₅OS₂
N-{2-[(1,3-benzothiazol-2-yl)amino]ethyl}-3,6-dichloropyridine-2-carboxamide	N-{2-[(1,3-benzothiazol-2-yl)amino]ethyl}-3,6-dichloropyridine-2-carboxamide	分子量：367.3 密度：N/A 沸点：N/A 熔点：N/A	1209167-24-7	C₁₅H₁₂Cl₂N₄OS
5-chloro-N-(1,3-dimethyl-1H-pyrazol-5-yl)-2-(methylsulfanyl)pyrimidine-4-carboxamide	5-chloro-N-(1,3-dimethyl-1H-pyrazol-5-yl)-2-(methylsulfanyl)pyrimidine-4-carboxamide	分子量：297.76 密度：N/A 沸点：N/A 熔点：N/A	1208851-75-5	C₁₁H₁₂ClN₅OS
3-Cyano-N-[2-(3,5-dimethyl-1H-pyrazol-1-yl)phenyl]benzamide	3-Cyano-N-[2-(3,5-dimethyl-1H-pyrazol-1-yl)phenyl]benzamide	分子量：316.4 密度：N/A 沸点：N/A 熔点：N/A	1197519-75-7	C₁₉H₁₆N₄O
4-Chloranyl-2-methyl-5-[(3-methylthiophen-2-yl)methylamino]pyridazin-3-one	4-Chloranyl-2-methyl-5-[(3-methylthiophen-2-yl)methylamino]pyridazin-3-one	分子量：269.75 密度：N/A 沸点：N/A 熔点：N/A	1181875-30-8	C₁₁H₁₂ClN₃OS
bis(5-ethyl-1H-pyrrol-2-yl)methanone	bis(5-ethyl-1H-pyrrol-2-yl)methanone	分子量：216.28 密度：N/A 沸点：N/A 熔点：N/A	412022-35-6	C₁₃H₁₆N₂O
2-Amino-2-(trifluoromethyl)hex-5-enoic acid	2-Amino-2-(trifluoromethyl)hex-5-enoic acid	分子量：197.15 密度：N/A 沸点：N/A 熔点：N/A	887267-88-1	C₇H₁₀F₃NO₂
Methyl 3-(4-fluorophenyl)-2-isocyanatopropionate	Methyl 3-(4-fluorophenyl)-2-isocyanatopropionate	分子量：223.20 密度：N/A 沸点：N/A 熔点：N/A	1211371-51-5	C₁₁H₁₀FNO₃
2-(2-Furanyl)cyclohexanamine	2-(2-Furanyl)cyclohexanamine	分子量：165.23 密度：N/A 沸点：N/A 熔点：N/A	22095-35-8	C₁₀H₁₅NO
N-Cyclopropylaniline hydrochloride	N-Cyclopropylaniline hydrochloride	分子量：169.65 密度：N/A 沸点：N/A 熔点：N/A	172537-71-2	C₉H₁₂ClN
N-[[4-[(2,6-dimethylmorpholin-4-yl)methyl]phenyl]methyl]-5-methyl-4-nitrothiophene-2-carboxamide	N-[[4-[(2,6-dimethylmorpholin-4-yl)methyl]phenyl]methyl]-5-methyl-4-nitrothiophene-2-carboxamide	分子量：403.5 密度：N/A 沸点：N/A 熔点：N/A	1210870-22-6	C₂₀H₂₅N₃O₄S
5-chloro-N-({4-[(2,6-dimethylmorpholin-4-yl)methyl]phenyl}methyl)-2-(methylsulfanyl)pyrimidine-4-carboxamide	5-chloro-N-({4-[(2,6-dimethylmorpholin-4-yl)methyl]phenyl}methyl)-2-(methylsulfanyl)pyrimidine-4-carboxamide	分子量：421.0 密度：N/A 沸点：N/A 熔点：N/A	1208788-40-2	C₂₀H₂₅ClN₄O₂S
7-(Trifluoromethyl)benzofuran	7-(Trifluoromethyl)benzofuran	分子量：186.13 密度：N/A 沸点：N/A 熔点：N/A	1388059-49-1	C₉H₅F₃O
2-[(2,3-Diphenyl-1,2,4-thiadiazol-5(2H)-ylidene)amino]ethanol hydrobromide	2-[(2,3-Diphenyl-1,2,4-thiadiazol-5(2H)-ylidene)amino]ethanol hydrobromide	分子量：378.3 密度：N/A 沸点：N/A 熔点：N/A	1281681-16-0	C₁₆H₁₆BrN₃OS