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-phenylpropyl)-2-(pyrazin-2-yl)thiazole-4-carboxamide	N-(3-phenylpropyl)-2-(pyrazin-2-yl)thiazole-4-carboxamide	分子量：324.4 密度：N/A 沸点：N/A 熔点：N/A	1234862-94-2	C₁₇H₁₆N₄OS
(2-Methylindolin-1-yl)(2-(pyrazin-2-yl)thiazol-4-yl)methanone	(2-Methylindolin-1-yl)(2-(pyrazin-2-yl)thiazol-4-yl)methanone	分子量：322.4 密度：N/A 沸点：N/A 熔点：N/A	1234867-69-6	C₁₇H₁₄N₄OS
Tert-butyl[(3,4-dimethylphenyl)methyl]amine	Tert-butyl[(3,4-dimethylphenyl)methyl]amine	分子量：191.31 密度：N/A 沸点：N/A 熔点：N/A	1155171-58-6	C₁₃H₂₁N
N-(5-chloro-2-cyanophenyl)-2-(pyrazin-2-yl)thiazole-4-carboxamide	N-(5-chloro-2-cyanophenyl)-2-(pyrazin-2-yl)thiazole-4-carboxamide	分子量：341.8 密度：N/A 沸点：N/A 熔点：N/A	1235644-51-5	C₁₅H₈ClN₅OS
1-methyl-N-(pentan-2-yl)-1H-pyrazol-4-amine	1-methyl-N-(pentan-2-yl)-1H-pyrazol-4-amine	分子量：167.25 密度：N/A 沸点：N/A 熔点：N/A	1153972-32-7	C₉H₁₇N₃
1-methyl-N-(3-methylcyclohexyl)-1H-pyrazol-4-amine	1-methyl-N-(3-methylcyclohexyl)-1H-pyrazol-4-amine	分子量：193.29 密度：N/A 沸点：N/A 熔点：N/A	1153293-81-2	C₁₁H₁₉N₃
2,4-dichloro-N-(pyridin-2-ylmethyl)-N-(thiophen-3-ylmethyl)benzamide	2,4-dichloro-N-(pyridin-2-ylmethyl)-N-(thiophen-3-ylmethyl)benzamide	分子量：377.3 密度：N/A 沸点：N/A 熔点：N/A	1235642-51-9	C₁₈H₁₄Cl₂N₂OS
1-(7-Fluoro-1-benzofuran-2-yl)ethan-1-amine	1-(7-Fluoro-1-benzofuran-2-yl)ethan-1-amine	分子量：179.19 密度：N/A 沸点：N/A 熔点：N/A	1094485-72-9	C₁₀H₁₀FNO
2-Thiophenemethanamine, 3-methyl-N-[2-(trifluoromethyl)cyclohexyl]-	2-Thiophenemethanamine, 3-methyl-N-[2-(trifluoromethyl)cyclohexyl]-	分子量：277.35 密度：N/A 沸点：N/A 熔点：N/A	1155005-48-3	C₁₃H₁₈F₃NS
11-(3,4-Dimethylphenyl)-4-[2-[4-(4-fluorophenyl)piperazin-1-yl]-2-oxoethyl]-3,4,6,9,10-pentazatricyclo[7.3.0.02,6]dodeca-1(12),2,7,10-tetraen-5-one	11-(3,4-Dimethylphenyl)-4-[2-[4-(4-fluorophenyl)piperazin-1-yl]-2-oxoethyl]-3,4,6,9,10-pentazatricyclo[7.3.0.02,6]dodeca-1(12),2,7,10-tetraen-5-one	分子量：499.5 密度：N/A 沸点：N/A 熔点：N/A	1207020-06-1	C₂₇H₂₆FN₇O₂
N-(4-fluorophenethyl)-2-(pyrazin-2-yl)thiazole-4-carboxamide	N-(4-fluorophenethyl)-2-(pyrazin-2-yl)thiazole-4-carboxamide	分子量：328.4 密度：N/A 沸点：N/A 熔点：N/A	1325745-91-2	C₁₆H₁₃FN₄OS
(6-methyl-3,4-dihydroquinolin-1(2H)-yl)(2-(pyrazin-2-yl)thiazol-4-yl)methanone	(6-methyl-3,4-dihydroquinolin-1(2H)-yl)(2-(pyrazin-2-yl)thiazol-4-yl)methanone	分子量：336.4 密度：N/A 沸点：N/A 熔点：N/A	1234894-03-1	C₁₈H₁₆N₄OS
(6-methoxy-3,4-dihydroisoquinolin-2(1H)-yl)(2-(pyrazin-2-yl)thiazol-4-yl)methanone	(6-methoxy-3,4-dihydroisoquinolin-2(1H)-yl)(2-(pyrazin-2-yl)thiazol-4-yl)methanone	分子量：352.4 密度：N/A 沸点：N/A 熔点：N/A	1235046-24-8	C₁₈H₁₆N₄O₂S
(2S,4R)-1-(tert-butoxycarbonyl)-2-(methoxycarbonyl)piperidine-4-carboxylic acid	(2S,4R)-1-(tert-butoxycarbonyl)-2-(methoxycarbonyl)piperidine-4-carboxylic acid	分子量：287.31 密度：N/A 沸点：N/A 熔点：N/A	2380572-76-7	C₁₃H₂₁NO₆
1,1-Dimethylethyl 5,5-difluoro-9-(phenylmethyl)-2,9-diazaspiro[5.5]undecane-2-carboxylate	1,1-Dimethylethyl 5,5-difluoro-9-(phenylmethyl)-2,9-diazaspiro[5.5]undecane-2-carboxylate	分子量：380.5 密度：N/A 沸点：N/A 熔点：N/A	1159982-60-1	C₂₁H₃₀F₂N₂O₂
1,1-Dimethylethyl 1-[(1,1-dimethylethoxy)carbonyl]-1,4,5,6-tetrahydro-3-pyridineacetate	1,1-Dimethylethyl 1-[(1,1-dimethylethoxy)carbonyl]-1,4,5,6-tetrahydro-3-pyridineacetate	分子量：297.39 密度：N/A 沸点：N/A 熔点：N/A	1159982-67-8	C₁₆H₂₇NO₄
N-[(5-bromothiophen-3-yl)methyl]cyclopropanamine	N-[(5-bromothiophen-3-yl)methyl]cyclopropanamine	分子量：232.14 密度：N/A 沸点：N/A 熔点：N/A	1156313-38-0	C₈H₁₀BrNS
2-(3-(3,4-dimethoxyphenyl)-6-oxopyridazin-1(6H)-yl)-N-(3-(trifluoromethyl)phenyl)acetamide	2-(3-(3,4-dimethoxyphenyl)-6-oxopyridazin-1(6H)-yl)-N-(3-(trifluoromethyl)phenyl)acetamide	分子量：433.4 密度：N/A 沸点：N/A 熔点：N/A	922882-14-2	C₂₁H₁₈F₃N₃O₄
2-(3-(3,4-dimethoxyphenyl)-6-oxopyridazin-1(6H)-yl)-N-(4-(trifluoromethyl)phenyl)acetamide	2-(3-(3,4-dimethoxyphenyl)-6-oxopyridazin-1(6H)-yl)-N-(4-(trifluoromethyl)phenyl)acetamide	分子量：433.4 密度：N/A 沸点：N/A 熔点：N/A	922902-97-4	C₂₁H₁₈F₃N₃O₄
N-(2,5-dimethoxyphenyl)-2-(3-(3,4-dimethoxyphenyl)-6-oxopyridazin-1(6H)-yl)acetamide	N-(2,5-dimethoxyphenyl)-2-(3-(3,4-dimethoxyphenyl)-6-oxopyridazin-1(6H)-yl)acetamide	分子量：425.4 密度：N/A 沸点：N/A 熔点：N/A	923102-01-6	C₂₂H₂₃N₃O₆
N-[3-(acetylamino)phenyl]-2-[3-(3,4-dimethoxyphenyl)-6-oxopyridazin-1(6H)-yl]acetamide	N-[3-(acetylamino)phenyl]-2-[3-(3,4-dimethoxyphenyl)-6-oxopyridazin-1(6H)-yl]acetamide	分子量：422.4 密度：N/A 沸点：N/A 熔点：N/A	922946-78-9	C₂₂H₂₂N₄O₅
2-(Tert-butoxycarbonyl)decahydroisoquinoline-8-carboxylic acid	2-(Tert-butoxycarbonyl)decahydroisoquinoline-8-carboxylic acid	分子量：283.36 密度：N/A 沸点：N/A 熔点：N/A	1221818-24-1	C₁₅H₂₅NO₄
ethyl 4-(2-(3-(3,4-dimethoxyphenyl)-6-oxopyridazin-1(6H)-yl)acetyl)piperazine-1-carboxylate	ethyl 4-(2-(3-(3,4-dimethoxyphenyl)-6-oxopyridazin-1(6H)-yl)acetyl)piperazine-1-carboxylate	分子量：430.5 密度：N/A 沸点：N/A 熔点：N/A	923102-19-6	C₂₁H₂₆N₄O₆
3-Piperidineacetic acid, 1-[(2,5-dimethylphenyl)sulfonyl]-	3-Piperidineacetic acid, 1-[(2,5-dimethylphenyl)sulfonyl]-	分子量：311.4 密度：N/A 沸点：N/A 熔点：N/A	1082412-22-3	C₁₅H₂₁NO₄S
Methyl 1,2,3,4,4a,5,6,7,8,8a-decahydroisoquinoline-8-carboxylate	Methyl 1,2,3,4,4a,5,6,7,8,8a-decahydroisoquinoline-8-carboxylate	分子量：197.27 密度：N/A 沸点：N/A 熔点：N/A	1221825-06-4	C₁₁H₁₉NO₂
N-(3,5-dimethoxyphenyl)-2-(3-(3,4-dimethoxyphenyl)-6-oxopyridazin-1(6H)-yl)acetamide	N-(3,5-dimethoxyphenyl)-2-(3-(3,4-dimethoxyphenyl)-6-oxopyridazin-1(6H)-yl)acetamide	分子量：425.4 密度：N/A 沸点：N/A 熔点：N/A	922947-14-6	C₂₂H₂₃N₃O₆
N-(5-chloro-2-methoxyphenyl)-2-(3-(3,4-dimethoxyphenyl)-6-oxopyridazin-1(6H)-yl)acetamide	N-(5-chloro-2-methoxyphenyl)-2-(3-(3,4-dimethoxyphenyl)-6-oxopyridazin-1(6H)-yl)acetamide	分子量：429.9 密度：N/A 沸点：N/A 熔点：N/A	922947-20-4	C₂₁H₂₀ClN₃O₅
rel-Ethyl (2R,4S)-2-phenyl-4-piperidineacetate	rel-Ethyl (2R,4S)-2-phenyl-4-piperidineacetate	分子量：247.33 密度：N/A 沸点：N/A 熔点：N/A	1221818-28-5	C₁₅H₂₁NO₂
2,5-dimethyl-N-(2-(quinolin-8-yloxy)ethyl)furan-3-carboxamide	2,5-dimethyl-N-(2-(quinolin-8-yloxy)ethyl)furan-3-carboxamide	分子量：310.3 密度：N/A 沸点：N/A 熔点：N/A	1234951-00-8	C₁₈H₁₈N₂O₃
N-(3,5-dichlorophenyl)-2-(3-(3,4-dimethoxyphenyl)-6-oxopyridazin-1(6H)-yl)acetamide	N-(3,5-dichlorophenyl)-2-(3-(3,4-dimethoxyphenyl)-6-oxopyridazin-1(6H)-yl)acetamide	分子量：434.3 密度：N/A 沸点：N/A 熔点：N/A	922947-35-1	C₂₀H₁₇Cl₂N₃O₄
2-(3-(4-bromophenyl)-6-oxopyridazin-1(6H)-yl)-N-(2,5-dimethoxyphenyl)acetamide	2-(3-(4-bromophenyl)-6-oxopyridazin-1(6H)-yl)-N-(2,5-dimethoxyphenyl)acetamide	分子量：444.3 密度：N/A 沸点：N/A 熔点：N/A	923098-86-6	C₂₀H₁₈BrN₃O₄
2-(1,1-Dimethylethyl) octahydro-2,5(1H)-isoquinolinedicarboxylate	2-(1,1-Dimethylethyl) octahydro-2,5(1H)-isoquinolinedicarboxylate	分子量：283.36 密度：N/A 沸点：N/A 熔点：N/A	1221818-11-6	C₁₅H₂₅NO₄
ethyl 4-{[3-(4-bromophenyl)-6-oxopyridazin-1(6H)-yl]acetyl}piperazine-1-carboxylate	ethyl 4-{[3-(4-bromophenyl)-6-oxopyridazin-1(6H)-yl]acetyl}piperazine-1-carboxylate	分子量：449.3 密度：N/A 沸点：N/A 熔点：N/A	923098-98-0	C₁₉H₂₁BrN₄O₄
6-(4-bromophenyl)-2-[2-oxo-2-(4-phenylpiperazino)ethyl]-3(2H)-pyridazinone	6-(4-bromophenyl)-2-[2-oxo-2-(4-phenylpiperazino)ethyl]-3(2H)-pyridazinone	分子量：453.3 密度：N/A 沸点：N/A 熔点：N/A	922880-07-7	C₂₂H₂₁BrN₄O₂
rel-Ethyl (2R,4S)-2-(4-chlorophenyl)-4-piperidineacetate	rel-Ethyl (2R,4S)-2-(4-chlorophenyl)-4-piperidineacetate	分子量：281.78 密度：N/A 沸点：N/A 熔点：N/A	1221818-33-2	C₁₅H₂₀ClNO₂
(S)-2-((tert-Butoxycarbonyl)amino)-2-(1-(tert-butoxycarbonyl)piperidin-4-yl)acetic acid	(S)-2-((tert-Butoxycarbonyl)amino)-2-(1-(tert-butoxycarbonyl)piperidin-4-yl)acetic acid	分子量：358.4 密度：N/A 沸点：N/A 熔点：N/A	1221793-50-5	C₁₇H₃₀N₂O₆
2-(3-(4-bromophenyl)-6-oxopyridazin-1(6H)-yl)-N-(4-butylphenyl)acetamide	2-(3-(4-bromophenyl)-6-oxopyridazin-1(6H)-yl)-N-(4-butylphenyl)acetamide	分子量：440.3 密度：N/A 沸点：N/A 熔点：N/A	923099-10-9	C₂₂H₂₂BrN₃O₂
2-(3-(4-bromophenyl)-6-oxopyridazin-1(6H)-yl)-N-(2-methoxy-5-methylphenyl)acetamide	2-(3-(4-bromophenyl)-6-oxopyridazin-1(6H)-yl)-N-(2-methoxy-5-methylphenyl)acetamide	分子量：428.3 密度：N/A 沸点：N/A 熔点：N/A	922943-89-3	C₂₀H₁₈BrN₃O₃
(1E)-N,N-Dimethyl-1-(2-pyridinylmethylene)-1H-indene-3-ethanamine	(1E)-N,N-Dimethyl-1-(2-pyridinylmethylene)-1H-indene-3-ethanamine	分子量：276.4 密度：N/A 沸点：N/A 熔点：N/A	351422-78-1	C₁₉H₂₀N₂
2-(3-(4-bromophenyl)-6-oxopyridazin-1(6H)-yl)-N-(2-chlorobenzyl)acetamide	2-(3-(4-bromophenyl)-6-oxopyridazin-1(6H)-yl)-N-(2-chlorobenzyl)acetamide	分子量：432.7 密度：N/A 沸点：N/A 熔点：N/A	922944-04-5	C₁₉H₁₅BrClN₃O₂
2-methyl-N-(pyridin-2-ylmethyl)imidazo[1,2-a]pyridine-3-carboxamide	2-methyl-N-(pyridin-2-ylmethyl)imidazo[1,2-a]pyridine-3-carboxamide	分子量：266.30 密度：N/A 沸点：N/A 熔点：N/A	1234891-72-5	C₁₅H₁₄N₄O
1-(Methylsulfonyl)-N-[(3-nitrophenyl)methyl]-4-piperidinamine	1-(Methylsulfonyl)-N-[(3-nitrophenyl)methyl]-4-piperidinamine	分子量：313.37 密度：N/A 沸点：N/A 熔点：N/A	1155998-72-3	C₁₃H₁₉N₃O₄S
Cis-2-(4-fluorophenyl)-4-(trifluoromethyl)piperidine	Cis-2-(4-fluorophenyl)-4-(trifluoromethyl)piperidine	分子量：247.23 密度：N/A 沸点：N/A 熔点：N/A	2093327-82-1	C₁₂H₁₃F₄N
3-Fluoro-4-(4-(trifluoromethyl)piperidin-1-YL)benzonitrile	3-Fluoro-4-(4-(trifluoromethyl)piperidin-1-YL)benzonitrile	分子量：272.24 密度：N/A 沸点：N/A 熔点：N/A	1159984-37-8	C₁₃H₁₂F₄N₂
2-(3-(naphthalen-2-yl)-6-oxopyridazin-1(6H)-yl)-N-(4-(trifluoromethyl)phenyl)acetamide	2-(3-(naphthalen-2-yl)-6-oxopyridazin-1(6H)-yl)-N-(4-(trifluoromethyl)phenyl)acetamide	分子量：423.4 密度：N/A 沸点：N/A 熔点：N/A	922900-36-5	C₂₃H₁₆F₃N₃O₂
N-(4-bromophenyl)-2-(3-(naphthalen-2-yl)-6-oxopyridazin-1(6H)-yl)acetamide	N-(4-bromophenyl)-2-(3-(naphthalen-2-yl)-6-oxopyridazin-1(6H)-yl)acetamide	分子量：434.3 密度：N/A 沸点：N/A 熔点：N/A	923100-00-9	C₂₂H₁₆BrN₃O₂
1-(2-Nitrophenyl)-4-(trifluoromethyl)piperidine	1-(2-Nitrophenyl)-4-(trifluoromethyl)piperidine	分子量：274.24 密度：N/A 沸点：N/A 熔点：N/A	1159984-57-2	C₁₂H₁₃F₃N₂O₂
ethyl 4-methyl-2-({[3-(naphthalen-2-yl)-6-oxopyridazin-1(6H)-yl]acetyl}amino)-1,3-thiazole-5-carboxylate	ethyl 4-methyl-2-({[3-(naphthalen-2-yl)-6-oxopyridazin-1(6H)-yl]acetyl}amino)-1,3-thiazole-5-carboxylate	分子量：448.5 密度：N/A 沸点：N/A 熔点：N/A	922993-38-2	C₂₃H₂₀N₄O₄S
3,4,5,6,6A,7-Hexahydro-7-hydroxy-7-(trifluoromethyl)pyrido-[4,3-C]-isoxazole	3,4,5,6,6A,7-Hexahydro-7-hydroxy-7-(trifluoromethyl)pyrido-[4,3-C]-isoxazole	分子量：210.15 密度：N/A 沸点：N/A 熔点：N/A	1159984-78-7	C₇H₉F₃N₂O₂
1-Acetyl-3-(trifluoroacetyl)piperidin-4-one	1-Acetyl-3-(trifluoroacetyl)piperidin-4-one	分子量：237.18 密度：N/A 沸点：N/A 熔点：N/A	1159984-83-4	C₉H₁₀F₃NO₃