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
7-chloro-3-(2,3-dihydro-1H-indol-1-ylcarbonyl)quinolin-4(1H)-one	7-chloro-3-(2,3-dihydro-1H-indol-1-ylcarbonyl)quinolin-4(1H)-one	分子量：324.8 密度：N/A 沸点：N/A 熔点：N/A	1144463-94-4	C₁₈H₁₃ClN₂O₂
5-(3,4-difluorophenyl)-N-[(2Z)-5-[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]-4-methyl-1,3-thiazol-2(3H)-ylidene]-1,2-oxazole-3-carboxamide	5-(3,4-difluorophenyl)-N-[(2Z)-5-[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]-4-methyl-1,3-thiazol-2(3H)-ylidene]-1,2-oxazole-3-carboxamide	分子量：495.5 密度：N/A 沸点：N/A 熔点：N/A	1144463-98-8	C₂₃H₁₅F₂N₅O₄S
N-[(2E)-5-benzyl-1,3,4-thiadiazol-2(3H)-ylidene]-2-(2-methylpropyl)-1,3-dioxo-2,3-dihydro-1H-isoindole-5-carboxamide	N-[(2E)-5-benzyl-1,3,4-thiadiazol-2(3H)-ylidene]-2-(2-methylpropyl)-1,3-dioxo-2,3-dihydro-1H-isoindole-5-carboxamide	分子量：420.5 密度：N/A 沸点：N/A 熔点：N/A	1144438-02-7	C₂₂H₂₀N₄O₃S
N-[(2E)-5-benzyl-1,3,4-thiadiazol-2(3H)-ylidene]-2-[(3,4-dimethyl-2-oxo-2H-chromen-7-yl)oxy]acetamide	N-[(2E)-5-benzyl-1,3,4-thiadiazol-2(3H)-ylidene]-2-[(3,4-dimethyl-2-oxo-2H-chromen-7-yl)oxy]acetamide	分子量：421.5 密度：N/A 沸点：N/A 熔点：N/A	1144464-07-2	C₂₂H₁₉N₃O₄S
2-(2-chlorophenoxy)-N-[(2E)-5-[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]-4-methyl-1,3-thiazol-2(3H)-ylidene]acetamide	2-(2-chlorophenoxy)-N-[(2E)-5-[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]-4-methyl-1,3-thiazol-2(3H)-ylidene]acetamide	分子量：456.9 密度：N/A 沸点：N/A 熔点：N/A	1092338-99-2	C₂₁H₁₇ClN₄O₄S
2-(ethylthio)-N-(2-(2-oxo-2-(propylamino)ethyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)benzamide	2-(ethylthio)-N-(2-(2-oxo-2-(propylamino)ethyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)benzamide	分子量：404.6 密度：N/A 沸点：N/A 熔点：N/A	1105247-64-0	C₁₉H₂₄N₄O₂S₂
3-[(4-acetylpiperazin-1-yl)carbonyl]-7-chloroquinolin-4(1H)-one	3-[(4-acetylpiperazin-1-yl)carbonyl]-7-chloroquinolin-4(1H)-one	分子量：333.77 密度：N/A 沸点：N/A 熔点：N/A	1144448-70-3	C₁₆H₁₆ClN₃O₃
N-[(2Z)-5-[3-(4-fluorophenyl)-1,2,4-oxadiazol-5-yl]-4-methyl-1,3-thiazol-2(3H)-ylidene]benzamide	N-[(2Z)-5-[3-(4-fluorophenyl)-1,2,4-oxadiazol-5-yl]-4-methyl-1,3-thiazol-2(3H)-ylidene]benzamide	分子量：380.4 密度：N/A 沸点：N/A 熔点：N/A	1144493-49-1	C₁₉H₁₃FN₄O₂S
2-(4-(3-fluoro-4-methylphenyl)-2,3-dioxo-3,4-dihydropyrazin-1(2H)-yl)acetonitrile	2-(4-(3-fluoro-4-methylphenyl)-2,3-dioxo-3,4-dihydropyrazin-1(2H)-yl)acetonitrile	分子量：259.24 密度：N/A 沸点：N/A 熔点：N/A	1207052-86-5	C₁₃H₁₀FN₃O₂
1-benzyl-N-{2-[(thiophen-2-ylsulfonyl)amino]ethyl}-1H-indole-3-carboxamide	1-benzyl-N-{2-[(thiophen-2-ylsulfonyl)amino]ethyl}-1H-indole-3-carboxamide	分子量：439.6 密度：N/A 沸点：N/A 熔点：N/A	1144448-93-0	C₂₂H₂₁N₃O₃S₂
N-(2-(2-((2-methoxyethyl)amino)-2-oxoethyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)-1-(methylsulfonyl)piperidine-4-carboxamide	N-(2-(2-((2-methoxyethyl)amino)-2-oxoethyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)-1-(methylsulfonyl)piperidine-4-carboxamide	分子量：445.6 密度：N/A 沸点：N/A 熔点：N/A	1105204-48-5	C₁₇H₂₇N₅O₅S₂
5-(4-chlorophenyl)-N-[(2Z)-4-methyl-5-[3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl]-1,3-thiazol-2(3H)-ylidene]-1,2-oxazole-3-carboxamide	5-(4-chlorophenyl)-N-[(2Z)-4-methyl-5-[3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl]-1,3-thiazol-2(3H)-ylidene]-1,2-oxazole-3-carboxamide	分子量：469.9 密度：N/A 沸点：N/A 熔点：N/A	1092338-93-6	C₂₀H₁₂ClN₅O₃S₂
7-chloro-N-(3-methoxypropyl)-4-oxo-1,4-dihydroquinoline-3-carboxamide	7-chloro-N-(3-methoxypropyl)-4-oxo-1,4-dihydroquinoline-3-carboxamide	分子量：294.73 密度：N/A 沸点：N/A 熔点：N/A	1144493-85-5	C₁₄H₁₅ClN₂O₃
5-(4-methoxyphenyl)-N-[(2E)-5-[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]-4-methyl-1,3-thiazol-2(3H)-ylidene]-1,2-oxazole-3-carboxamide	5-(4-methoxyphenyl)-N-[(2E)-5-[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]-4-methyl-1,3-thiazol-2(3H)-ylidene]-1,2-oxazole-3-carboxamide	分子量：489.5 密度：N/A 沸点：N/A 熔点：N/A	1144467-92-4	C₂₄H₁₉N₅O₅S
3-(3-chlorophenyl)-N-[2-(dimethylamino)ethyl]-4-oxo-3,4-dihydroquinazoline-7-carboxamide	3-(3-chlorophenyl)-N-[2-(dimethylamino)ethyl]-4-oxo-3,4-dihydroquinazoline-7-carboxamide	分子量：370.8 密度：N/A 沸点：N/A 熔点：N/A	1144494-20-1	C₁₉H₁₉ClN₄O₂
3-{[(Tert-butoxy)carbonyl][(pyridin-2-yl)methyl]amino}propanoic acid	3-{[(Tert-butoxy)carbonyl][(pyridin-2-yl)methyl]amino}propanoic acid	分子量：280.32 密度：N/A 沸点：N/A 熔点：N/A	1181756-89-7	C₁₄H₂₀N₂O₄
3-{[(Tert-butoxy)carbonyl][(pyridin-3-yl)methyl]amino}propanoic acid	3-{[(Tert-butoxy)carbonyl][(pyridin-3-yl)methyl]amino}propanoic acid	分子量：280.32 密度：N/A 沸点：N/A 熔点：N/A	1181656-00-7	C₁₄H₂₀N₂O₄
4-chloro-N-[(2E)-4-methyl-5-(3-phenyl-1,2,4-oxadiazol-5-yl)-1,3-thiazol-2(3H)-ylidene]benzamide	4-chloro-N-[(2E)-4-methyl-5-(3-phenyl-1,2,4-oxadiazol-5-yl)-1,3-thiazol-2(3H)-ylidene]benzamide	分子量：396.9 密度：N/A 沸点：N/A 熔点：N/A	1144471-79-3	C₁₉H₁₃ClN₄O₂S
(5,6-Dimethyl-1,3-benzothiazol-2-yl)methylamine	(5,6-Dimethyl-1,3-benzothiazol-2-yl)methylamine	分子量：192.28 密度：N/A 沸点：N/A 熔点：N/A	1176714-56-9	C₁₀H₁₂N₂S
2-(4-chloro-1H-indol-1-yl)-N-(1,3-thiazol-2-yl)acetamide	2-(4-chloro-1H-indol-1-yl)-N-(1,3-thiazol-2-yl)acetamide	分子量：291.76 密度：N/A 沸点：N/A 熔点：N/A	1144431-35-5	C₁₃H₁₀ClN₃OS
2-(4-bromophenoxy)-N-[(2Z)-4-methyl-5-[3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl]-1,3-thiazol-2(3H)-ylidene]acetamide	2-(4-bromophenoxy)-N-[(2Z)-4-methyl-5-[3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl]-1,3-thiazol-2(3H)-ylidene]acetamide	分子量：477.4 密度：N/A 沸点：N/A 熔点：N/A	1144431-45-7	C₁₈H₁₃BrN₄O₃S₂
N-[(2Z)-4-methyl-5-[3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl]-1,3-thiazol-2(3H)-ylidene]-4-propoxybenzamide	N-[(2Z)-4-methyl-5-[3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl]-1,3-thiazol-2(3H)-ylidene]-4-propoxybenzamide	分子量：426.5 密度：N/A 沸点：N/A 熔点：N/A	1092339-08-6	C₂₀H₁₈N₄O₃S₂
(R)-1-(benzo[d]thiazol-2-yl)piperidin-3-ol	(R)-1-(benzo[d]thiazol-2-yl)piperidin-3-ol	分子量：234.32 密度：N/A 沸点：N/A 熔点：N/A	1421048-18-1	C₁₂H₁₄N₂OS
2-(benzylthio)-N-(2-(2-((furan-2-ylmethyl)amino)-2-oxoethyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)acetamide	2-(benzylthio)-N-(2-(2-((furan-2-ylmethyl)amino)-2-oxoethyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)acetamide	分子量：442.6 密度：N/A 沸点：N/A 熔点：N/A	1105248-23-4	C₂₁H₂₂N₄O₃S₂
N-(furan-2-ylmethyl)-2-(3-(2-(naphthalen-1-yl)acetamido)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-2-yl)acetamide	N-(furan-2-ylmethyl)-2-(3-(2-(naphthalen-1-yl)acetamido)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-2-yl)acetamide	分子量：446.5 密度：N/A 沸点：N/A 熔点：N/A	1105248-31-4	C₂₄H₂₂N₄O₃S
2-(2-methoxyphenoxy)-N-[(2Z)-4-methyl-5-[3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl]-1,3-thiazol-2(3H)-ylidene]acetamide	2-(2-methoxyphenoxy)-N-[(2Z)-4-methyl-5-[3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl]-1,3-thiazol-2(3H)-ylidene]acetamide	分子量：428.5 密度：N/A 沸点：N/A 熔点：N/A	1092339-11-1	C₁₉H₁₆N₄O₄S₂
7-chloro-3-(pyrrolidin-1-ylcarbonyl)quinolin-4(1H)-one	7-chloro-3-(pyrrolidin-1-ylcarbonyl)quinolin-4(1H)-one	分子量：276.72 密度：N/A 沸点：N/A 熔点：N/A	1144472-54-7	C₁₄H₁₃ClN₂O₂
4-fluoro-N-[(2E)-4-methyl-5-(3-phenyl-1,2,4-oxadiazol-5-yl)-1,3-thiazol-2(3H)-ylidene]benzamide	4-fluoro-N-[(2E)-4-methyl-5-(3-phenyl-1,2,4-oxadiazol-5-yl)-1,3-thiazol-2(3H)-ylidene]benzamide	分子量：380.4 密度：N/A 沸点：N/A 熔点：N/A	1144497-17-5	C₁₉H₁₃FN₄O₂S
2-(3-Methyl-2-oxo-1,2-dihydropyridin-1-yl)acetic acid	2-(3-Methyl-2-oxo-1,2-dihydropyridin-1-yl)acetic acid	分子量：167.16 密度：N/A 沸点：N/A 熔点：N/A	1176754-29-2	C₈H₉NO₃
3-(5-Chloro-2-oxopyridin-1-yl)propanoic acid	3-(5-Chloro-2-oxopyridin-1-yl)propanoic acid	分子量：201.61 密度：N/A 沸点：N/A 熔点：N/A	942317-86-4	C₈H₈ClNO₃
4-bromo-N-[(2Z)-5-[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]-4-methyl-1,3-thiazol-2(3H)-ylidene]benzamide	4-bromo-N-[(2Z)-5-[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]-4-methyl-1,3-thiazol-2(3H)-ylidene]benzamide	分子量：471.3 密度：N/A 沸点：N/A 熔点：N/A	1092339-36-0	C₂₀H₁₅BrN₄O₃S
5-{[(4-Chlorophenyl)sulfonyl]methyl}furan-2-carboxylic acid	5-{[(4-Chlorophenyl)sulfonyl]methyl}furan-2-carboxylic acid	分子量：300.71 密度：N/A 沸点：N/A 熔点：N/A	1146297-18-8	C₁₂H₉ClO₅S
N-(2-(2-((4-methoxybenzyl)amino)-2-oxoethyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)furan-2-carboxamide	N-(2-(2-((4-methoxybenzyl)amino)-2-oxoethyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)furan-2-carboxamide	分子量：412.5 密度：N/A 沸点：N/A 熔点：N/A	1105218-62-9	C₂₀H₂₀N₄O₄S
2,4-difluoro-N-(2-(2-((4-methoxybenzyl)amino)-2-oxoethyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)benzamide	2,4-difluoro-N-(2-(2-((4-methoxybenzyl)amino)-2-oxoethyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)benzamide	分子量：458.5 密度：N/A 沸点：N/A 熔点：N/A	1105218-74-3	C₂₂H₂₀F₂N₄O₃S
N-(2-(2-((4-fluorobenzyl)amino)-2-oxoethyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)cyclopropanecarboxamide	N-(2-(2-((4-fluorobenzyl)amino)-2-oxoethyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)cyclopropanecarboxamide	分子量：374.4 密度：N/A 沸点：N/A 熔点：N/A	1105250-19-8	C₁₈H₁₉FN₄O₂S
2-bromo-N-[(2Z)-5-[3-(4-fluorophenyl)-1,2,4-oxadiazol-5-yl]-4-methyl-1,3-thiazol-2(3H)-ylidene]benzamide	2-bromo-N-[(2Z)-5-[3-(4-fluorophenyl)-1,2,4-oxadiazol-5-yl]-4-methyl-1,3-thiazol-2(3H)-ylidene]benzamide	分子量：459.3 密度：N/A 沸点：N/A 熔点：N/A	1092338-84-5	C₁₉H₁₂BrFN₄O₂S
N-[(2Z)-4-methyl-5-[3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl]-1,3-thiazol-2(3H)-ylidene]naphthalene-1-carboxamide	N-[(2Z)-4-methyl-5-[3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl]-1,3-thiazol-2(3H)-ylidene]naphthalene-1-carboxamide	分子量：418.5 密度：N/A 沸点：N/A 熔点：N/A	1092339-20-2	C₂₁H₁₄N₄O₂S₂
4-bromo-N-[(2E)-4-methyl-5-(3-phenyl-1,2,4-oxadiazol-5-yl)-1,3-thiazol-2(3H)-ylidene]benzamide	4-bromo-N-[(2E)-4-methyl-5-(3-phenyl-1,2,4-oxadiazol-5-yl)-1,3-thiazol-2(3H)-ylidene]benzamide	分子量：441.3 密度：N/A 沸点：N/A 熔点：N/A	1092338-12-9	C₁₉H₁₃BrN₄O₂S
2-(1-Methyl-1,2,3,4-tetrahydroquinolin-6-yl)acetic acid	2-(1-Methyl-1,2,3,4-tetrahydroquinolin-6-yl)acetic acid	分子量：205.25 密度：N/A 沸点：N/A 熔点：N/A	30199-70-3	C₁₂H₁₅NO₂
2-(1,2-dimethyl-1H-1,3-benzodiazol-5-yl)acetic acid	2-(1,2-dimethyl-1H-1,3-benzodiazol-5-yl)acetic acid	分子量：204.22 密度：N/A 沸点：N/A 熔点：N/A	1176671-67-2	C₁₁H₁₂N₂O₂
2-(2-Ethyl-1H-benzo[d]imidazol-5-yl)acetic acid	2-(2-Ethyl-1H-benzo[d]imidazol-5-yl)acetic acid	分子量：204.22 密度：N/A 沸点：N/A 熔点：N/A	1176754-43-0	C₁₁H₁₂N₂O₂
2-(2-Isopropyl-1H-benzo[d]imidazol-5-yl)acetic acid	2-(2-Isopropyl-1H-benzo[d]imidazol-5-yl)acetic acid	分子量：218.25 密度：N/A 沸点：N/A 熔点：N/A	1176054-82-2	C₁₂H₁₄N₂O₂
3-Chloro-4'-fluoro-3'-methylpropiophenone	3-Chloro-4'-fluoro-3'-methylpropiophenone	分子量：200.64 密度：N/A 沸点：N/A 熔点：N/A	1175986-33-0	C₁₀H₁₀ClFO
1-(5-Chloro-2-isobutoxyphenyl)ethanone	1-(5-Chloro-2-isobutoxyphenyl)ethanone	分子量：226.70 密度：N/A 沸点：N/A 熔点：N/A	1175794-38-3	C₁₂H₁₅ClO₂
2'-iso-Butoxy-5'-methylpropiophenone	2'-iso-Butoxy-5'-methylpropiophenone	分子量：220.31 密度：N/A 沸点：N/A 熔点：N/A	1176114-12-7	C₁₄H₂₀O₂
7-chloro-N-(3-methylbutyl)-4-oxo-1,4-dihydroquinoline-3-carboxamide	7-chloro-N-(3-methylbutyl)-4-oxo-1,4-dihydroquinoline-3-carboxamide	分子量：292.76 密度：N/A 沸点：N/A 熔点：N/A	1144454-84-1	C₁₅H₁₇ClN₂O₂
N-[(2Z)-1,3-benzothiazol-2(3H)-ylidene]-2-(6-fluoro-1H-indol-1-yl)acetamide	N-[(2Z)-1,3-benzothiazol-2(3H)-ylidene]-2-(6-fluoro-1H-indol-1-yl)acetamide	分子量：325.4 密度：N/A 沸点：N/A 熔点：N/A	1049123-80-9	C₁₇H₁₂FN₃OS
3-(4-Chlorophenyl)-1H-indazole-5-carboxylic acid	3-(4-Chlorophenyl)-1H-indazole-5-carboxylic acid	分子量：272.68 密度：N/A 沸点：N/A 熔点：N/A	1181335-71-6	C₁₄H₉ClN₂O₂
7-chloro-3-(1,4-dioxa-8-azaspiro[4.5]dec-8-ylcarbonyl)quinolin-4(1H)-one	7-chloro-3-(1,4-dioxa-8-azaspiro[4.5]dec-8-ylcarbonyl)quinolin-4(1H)-one	分子量：348.8 密度：N/A 沸点：N/A 熔点：N/A	1144427-67-7	C₁₇H₁₇ClN₂O₄
2-(2-chlorophenoxy)-N-[(2E)-4-methyl-5-(3-phenyl-1,2,4-oxadiazol-5-yl)-1,3-thiazol-2(3H)-ylidene]acetamide	2-(2-chlorophenoxy)-N-[(2E)-4-methyl-5-(3-phenyl-1,2,4-oxadiazol-5-yl)-1,3-thiazol-2(3H)-ylidene]acetamide	分子量：426.9 密度：N/A 沸点：N/A 熔点：N/A	1144427-73-5	C₂₀H₁₅ClN₄O₃S