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
1-(4-fluorophenyl)-4-methyl-6-(2-(4-methylpiperidin-1-yl)-2-oxoethyl)-1H-pyrazolo[3,4-d]pyridazin-7(6H)-one	1-(4-fluorophenyl)-4-methyl-6-(2-(4-methylpiperidin-1-yl)-2-oxoethyl)-1H-pyrazolo[3,4-d]pyridazin-7(6H)-one	分子量：383.4 密度：N/A 沸点：N/A 熔点：N/A	946203-86-7	C₂₀H₂₂FN₅O₂
6-(2-(3,4-dihydroquinolin-1(2H)-yl)-2-oxoethyl)-1-(4-fluorophenyl)-4-methyl-1H-pyrazolo[3,4-d]pyridazin-7(6H)-one	6-(2-(3,4-dihydroquinolin-1(2H)-yl)-2-oxoethyl)-1-(4-fluorophenyl)-4-methyl-1H-pyrazolo[3,4-d]pyridazin-7(6H)-one	分子量：417.4 密度：N/A 沸点：N/A 熔点：N/A	946253-32-3	C₂₃H₂₀FN₅O₂
2-(1-(4-fluorophenyl)-4-methyl-7-oxo-1H-pyrazolo[3,4-d]pyridazin-6(7H)-yl)acetamide	2-(1-(4-fluorophenyl)-4-methyl-7-oxo-1H-pyrazolo[3,4-d]pyridazin-6(7H)-yl)acetamide	分子量：301.28 密度：N/A 沸点：N/A 熔点：N/A	946331-97-1	C₁₄H₁₂FN₅O₂
N-cyclopentyl-2-(1-(4-fluorophenyl)-4-methyl-7-oxo-1H-pyrazolo[3,4-d]pyridazin-6(7H)-yl)acetamide	N-cyclopentyl-2-(1-(4-fluorophenyl)-4-methyl-7-oxo-1H-pyrazolo[3,4-d]pyridazin-6(7H)-yl)acetamide	分子量：369.4 密度：N/A 沸点：N/A 熔点：N/A	946379-02-8	C₁₉H₂₀FN₅O₂
2-(1-(4-fluorophenyl)-4-methyl-7-oxo-1H-pyrazolo[3,4-d]pyridazin-6(7H)-yl)-N-(furan-2-ylmethyl)acetamide	2-(1-(4-fluorophenyl)-4-methyl-7-oxo-1H-pyrazolo[3,4-d]pyridazin-6(7H)-yl)-N-(furan-2-ylmethyl)acetamide	分子量：381.4 密度：N/A 沸点：N/A 熔点：N/A	946203-90-3	C₁₉H₁₆FN₅O₃
2-(1-(4-fluorophenyl)-4-methyl-7-oxo-1H-pyrazolo[3,4-d]pyridazin-6(7H)-yl)-N-methylacetamide	2-(1-(4-fluorophenyl)-4-methyl-7-oxo-1H-pyrazolo[3,4-d]pyridazin-6(7H)-yl)-N-methylacetamide	分子量：315.30 密度：N/A 沸点：N/A 熔点：N/A	946253-38-9	C₁₅H₁₄FN₅O₂
2-(1-(4-fluorophenyl)-4-methyl-7-oxo-1H-pyrazolo[3,4-d]pyridazin-6(7H)-yl)-N-(2-methoxyethyl)acetamide	2-(1-(4-fluorophenyl)-4-methyl-7-oxo-1H-pyrazolo[3,4-d]pyridazin-6(7H)-yl)-N-(2-methoxyethyl)acetamide	分子量：359.4 密度：N/A 沸点：N/A 熔点：N/A	946379-06-2	C₁₇H₁₈FN₅O₃
6-(3-fluorobenzyl)-4-methyl-1-(o-tolyl)-1H-pyrazolo[3,4-d]pyridazin-7(6H)-one	6-(3-fluorobenzyl)-4-methyl-1-(o-tolyl)-1H-pyrazolo[3,4-d]pyridazin-7(6H)-one	分子量：348.4 密度：N/A 沸点：N/A 熔点：N/A	946203-98-1	C₂₀H₁₇FN₄O
1-(2,4-dimethylphenyl)-6-(2-fluorobenzyl)-4-methyl-1H-pyrazolo[3,4-d]pyridazin-7(6H)-one	1-(2,4-dimethylphenyl)-6-(2-fluorobenzyl)-4-methyl-1H-pyrazolo[3,4-d]pyridazin-7(6H)-one	分子量：362.4 密度：N/A 沸点：N/A 熔点：N/A	946332-06-5	C₂₁H₁₉FN₄O
N-(2-methoxybenzyl)-3-methyl-6-phenyl[1,2]oxazolo[5,4-b]pyridine-4-carboxamide	N-(2-methoxybenzyl)-3-methyl-6-phenyl[1,2]oxazolo[5,4-b]pyridine-4-carboxamide	分子量：373.4 密度：N/A 沸点：N/A 熔点：N/A	1089566-36-8	C₂₂H₁₉N₃O₃
N-(3-methoxyphenyl)-5-methyl-2,4-dioxo-3-(p-tolyl)-2,3,4,5-tetrahydro-1H-pyrrolo[3,2-d]pyrimidine-7-carboxamide	N-(3-methoxyphenyl)-5-methyl-2,4-dioxo-3-(p-tolyl)-2,3,4,5-tetrahydro-1H-pyrrolo[3,2-d]pyrimidine-7-carboxamide	分子量：404.4 密度：N/A 沸点：N/A 熔点：N/A	921535-24-2	C₂₂H₂₀N₄O₄
N-phenyl-2,3,4,9-tetrahydro-1H-carbazole-8-carboxamide	N-phenyl-2,3,4,9-tetrahydro-1H-carbazole-8-carboxamide	分子量：290.4 密度：N/A 沸点：N/A 熔点：N/A	946332-71-4	C₁₉H₁₈N₂O
N-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-2,3,4,9-tetrahydro-1H-carbazole-8-carboxamide	N-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-2,3,4,9-tetrahydro-1H-carbazole-8-carboxamide	分子量：348.4 密度：N/A 沸点：N/A 熔点：N/A	946379-55-1	C₂₁H₂₀N₂O₃
N-(4-fluorophenyl)-2,3,4,9-tetrahydro-1H-carbazole-8-carboxamide	N-(4-fluorophenyl)-2,3,4,9-tetrahydro-1H-carbazole-8-carboxamide	分子量：308.3 密度：N/A 沸点：N/A 熔点：N/A	946253-91-4	C₁₉H₁₇FN₂O
N-(2-phenylethyl)-2,3,4,9-tetrahydro-1H-carbazole-8-carboxamide	N-(2-phenylethyl)-2,3,4,9-tetrahydro-1H-carbazole-8-carboxamide	分子量：318.4 密度：N/A 沸点：N/A 熔点：N/A	946204-65-5	C₂₁H₂₂N₂O
3-Oxopiperazine-1-carboximidamide hydroiodide	3-Oxopiperazine-1-carboximidamide hydroiodide	分子量：270.07 密度：N/A 沸点：N/A 熔点：N/A	1216890-90-2	C₅H₁₁IN₄O
2-methoxy-N-(oxan-4-yl)pyridin-3-amine	2-methoxy-N-(oxan-4-yl)pyridin-3-amine	分子量：208.26 密度：N/A 沸点：N/A 熔点：N/A	1157646-30-4	C₁₁H₁₆N₂O₂
1-(Bromomethyl)-4-[(4-tert-butylphenyl)methoxy]benzene	1-(Bromomethyl)-4-[(4-tert-butylphenyl)methoxy]benzene	分子量：333.3 密度：N/A 沸点：N/A 熔点：N/A	1094303-18-0	C₁₈H₂₁BrO
Methyl 2-[4-(aminomethyl)-3,5-dimethyl-1H-pyrazol-1-yl]acetate	Methyl 2-[4-(aminomethyl)-3,5-dimethyl-1H-pyrazol-1-yl]acetate	分子量：197.23 密度：N/A 沸点：N/A 熔点：N/A	1155592-08-7	C₉H₁₅N₃O₂
1-benzyl-4-phenyl-1H-imidazol-5-amine	1-benzyl-4-phenyl-1H-imidazol-5-amine	分子量：249.31 密度：N/A 沸点：N/A 熔点：N/A	1000932-31-9	C₁₆H₁₅N₃
N-{1-[4-(benzyloxy)-3-methoxyphenyl]ethylidene}hydroxylamine	N-{1-[4-(benzyloxy)-3-methoxyphenyl]ethylidene}hydroxylamine	分子量：271.31 密度：N/A 沸点：N/A 熔点：N/A	1021082-05-2	C₁₆H₁₇NO₃
Methyl 6-(chloromethyl)-1-methyl-2-oxo-4-phenyl-1,2,3,4-tetrahydropyrimidine-5-carboxylate	Methyl 6-(chloromethyl)-1-methyl-2-oxo-4-phenyl-1,2,3,4-tetrahydropyrimidine-5-carboxylate	分子量：294.73 密度：N/A 沸点：N/A 熔点：N/A	893605-13-5	C₁₄H₁₅ClN₂O₃
Methyl 6-(chloromethyl)-2-oxo-4-phenyl-1,2,3,4-tetrahydropyrimidine-5-carboxylate	Methyl 6-(chloromethyl)-2-oxo-4-phenyl-1,2,3,4-tetrahydropyrimidine-5-carboxylate	分子量：280.70 密度：N/A 沸点：N/A 熔点：N/A	455949-50-5	C₁₃H₁₃ClN₂O₃
4-(4-chlorophenyl)-6-(4-fluorobenzyl)-3,4,6,7-tetrahydro-1H-pyrrolo[3,4-d]pyrimidine-2,5-dione	4-(4-chlorophenyl)-6-(4-fluorobenzyl)-3,4,6,7-tetrahydro-1H-pyrrolo[3,4-d]pyrimidine-2,5-dione	分子量：371.8 密度：N/A 沸点：N/A 熔点：N/A	1021093-67-3	C₁₉H₁₅ClFN₃O₂
6-(4-fluorobenzyl)-4-(4-hydroxyphenyl)-3,4,6,7-tetrahydro-1H-pyrrolo[3,4-d]pyrimidine-2,5-dione	6-(4-fluorobenzyl)-4-(4-hydroxyphenyl)-3,4,6,7-tetrahydro-1H-pyrrolo[3,4-d]pyrimidine-2,5-dione	分子量：353.3 密度：N/A 沸点：N/A 熔点：N/A	1021122-21-3	C₁₉H₁₆FN₃O₃
6-(4-fluorobenzyl)-4-(4-(methylthio)phenyl)-3,4,6,7-tetrahydro-1H-pyrrolo[3,4-d]pyrimidine-2,5-dione	6-(4-fluorobenzyl)-4-(4-(methylthio)phenyl)-3,4,6,7-tetrahydro-1H-pyrrolo[3,4-d]pyrimidine-2,5-dione	分子量：383.4 密度：N/A 沸点：N/A 熔点：N/A	1021060-70-7	C₂₀H₁₈FN₃O₂S
1-(Bromomethyl)-2-(2-methoxyethoxy)benzene	1-(Bromomethyl)-2-(2-methoxyethoxy)benzene	分子量：245.11 密度：N/A 沸点：N/A 熔点：N/A	1094335-95-1	C₁₀H₁₃BrO₂
6-(2-hydroxyethyl)-4-(o-tolyl)-3,4,6,7-tetrahydro-1H-pyrrolo[3,4-d]pyrimidine-2,5-dione	6-(2-hydroxyethyl)-4-(o-tolyl)-3,4,6,7-tetrahydro-1H-pyrrolo[3,4-d]pyrimidine-2,5-dione	分子量：287.31 密度：N/A 沸点：N/A 熔点：N/A	1021122-15-5	C₁₅H₁₇N₃O₃
2-(5-((2-fluorobenzyl)oxy)-2-methyl-4-oxopyridin-1(4H)-yl)-N-(3-fluorophenyl)acetamide	2-(5-((2-fluorobenzyl)oxy)-2-methyl-4-oxopyridin-1(4H)-yl)-N-(3-fluorophenyl)acetamide	分子量：384.4 密度：N/A 沸点：N/A 熔点：N/A	946332-87-2	C₂₁H₁₈F₂N₂O₃
N-(4-chlorophenyl)-2-(5-((2-fluorobenzyl)oxy)-2-methyl-4-oxopyridin-1(4H)-yl)acetamide	N-(4-chlorophenyl)-2-(5-((2-fluorobenzyl)oxy)-2-methyl-4-oxopyridin-1(4H)-yl)acetamide	分子量：400.8 密度：N/A 沸点：N/A 熔点：N/A	946379-67-5	C₂₁H₁₈ClFN₂O₃
N-(2,4-dimethoxyphenyl)-2-(5-((2-fluorobenzyl)oxy)-2-methyl-4-oxopyridin-1(4H)-yl)acetamide	N-(2,4-dimethoxyphenyl)-2-(5-((2-fluorobenzyl)oxy)-2-methyl-4-oxopyridin-1(4H)-yl)acetamide	分子量：426.4 密度：N/A 沸点：N/A 熔点：N/A	946204-74-6	C₂₃H₂₃FN₂O₅
N-(benzo[d][1,3]dioxol-5-ylmethyl)-2-(5-((2-fluorobenzyl)oxy)-2-methyl-4-oxopyridin-1(4H)-yl)acetamide	N-(benzo[d][1,3]dioxol-5-ylmethyl)-2-(5-((2-fluorobenzyl)oxy)-2-methyl-4-oxopyridin-1(4H)-yl)acetamide	分子量：424.4 密度：N/A 沸点：N/A 熔点：N/A	946332-91-8	C₂₃H₂₁FN₂O₅
4-(2-(5-((2-fluorobenzyl)oxy)-2-methyl-4-oxopyridin-1(4H)-yl)acetamido)benzamide	4-(2-(5-((2-fluorobenzyl)oxy)-2-methyl-4-oxopyridin-1(4H)-yl)acetamido)benzamide	分子量：409.4 密度：N/A 沸点：N/A 熔点：N/A	946379-70-0	C₂₂H₂₀FN₃O₄
N-[2-(4-fluorophenyl)ethyl]-2,3-dihydro-1H-inden-1-amine	N-[2-(4-fluorophenyl)ethyl]-2,3-dihydro-1H-inden-1-amine	分子量：255.33 密度：N/A 沸点：N/A 熔点：N/A	1019499-23-0	C₁₇H₁₈FN
2-methyl-5-((4-methylbenzyl)oxy)-1-(2-morpholino-2-oxoethyl)pyridin-4(1H)-one	2-methyl-5-((4-methylbenzyl)oxy)-1-(2-morpholino-2-oxoethyl)pyridin-4(1H)-one	分子量：356.4 密度：N/A 沸点：N/A 熔点：N/A	946333-16-0	C₂₀H₂₄N₂O₄
2-methyl-5-((4-methylbenzyl)oxy)-1-(2-oxo-2-(4-phenylpiperazin-1-yl)ethyl)pyridin-4(1H)-one	2-methyl-5-((4-methylbenzyl)oxy)-1-(2-oxo-2-(4-phenylpiperazin-1-yl)ethyl)pyridin-4(1H)-one	分子量：431.5 密度：N/A 沸点：N/A 熔点：N/A	946379-91-5	C₂₆H₂₉N₃O₃
N-(2-fluorophenyl)-2-(2-methyl-5-((4-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)acetamide	N-(2-fluorophenyl)-2-(2-methyl-5-((4-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)acetamide	分子量：380.4 密度：N/A 沸点：N/A 熔点：N/A	946205-01-2	C₂₂H₂₁FN₂O₃
N-(4-fluorophenyl)-2-(2-methyl-5-((4-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)acetamide	N-(4-fluorophenyl)-2-(2-methyl-5-((4-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)acetamide	分子量：380.4 密度：N/A 沸点：N/A 熔点：N/A	946333-19-3	C₂₂H₂₁FN₂O₃
N-(2,4-difluorophenyl)-2-(2-methyl-5-((4-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)acetamide	N-(2,4-difluorophenyl)-2-(2-methyl-5-((4-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	946379-94-8	C₂₂H₂₀F₂N₂O₃
N-(5-chloro-2-methoxyphenyl)-2-(2-methyl-5-((4-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)acetamide	N-(5-chloro-2-methoxyphenyl)-2-(2-methyl-5-((4-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)acetamide	分子量：426.9 密度：N/A 沸点：N/A 熔点：N/A	946254-30-4	C₂₃H₂₃ClN₂O₄
N-(2,5-dimethoxyphenyl)-2-(2-methyl-5-((4-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)acetamide	N-(2,5-dimethoxyphenyl)-2-(2-methyl-5-((4-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)acetamide	分子量：422.5 密度：N/A 沸点：N/A 熔点：N/A	946205-05-6	C₂₄H₂₆N₂O₅
N-(benzo[d][1,3]dioxol-5-yl)-2-(2-methyl-5-((4-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)acetamide	N-(benzo[d][1,3]dioxol-5-yl)-2-(2-methyl-5-((4-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	946333-22-8	C₂₃H₂₂N₂O₅
N-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-2-(2-methyl-5-((4-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)acetamide	N-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-2-(2-methyl-5-((4-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	946379-97-1	C₂₄H₂₄N₂O₅
N-(4-fluorobenzyl)-2-(2-methyl-5-((4-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)acetamide	N-(4-fluorobenzyl)-2-(2-methyl-5-((4-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)acetamide	分子量：394.4 密度：N/A 沸点：N/A 熔点：N/A	946254-33-7	C₂₃H₂₃FN₂O₃
N-(benzo[d][1,3]dioxol-5-ylmethyl)-2-(2-methyl-5-((4-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)acetamide	N-(benzo[d][1,3]dioxol-5-ylmethyl)-2-(2-methyl-5-((4-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	946205-09-0	C₂₄H₂₄N₂O₅
N-(furan-2-ylmethyl)-2-(2-methyl-5-((4-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)acetamide	N-(furan-2-ylmethyl)-2-(2-methyl-5-((4-methylbenzyl)oxy)-4-oxopyridin-1(4H)-yl)acetamide	分子量：366.4 密度：N/A 沸点：N/A 熔点：N/A	946333-25-1	C₂₁H₂₂N₂O₄
N-(3,4-dimethoxyphenyl)-2-(2-(hydroxymethyl)-5-methoxy-4-oxopyridin-1(4H)-yl)acetamide	N-(3,4-dimethoxyphenyl)-2-(2-(hydroxymethyl)-5-methoxy-4-oxopyridin-1(4H)-yl)acetamide	分子量：348.3 密度：N/A 沸点：N/A 熔点：N/A	946205-33-0	C₁₇H₂₀N₂O₆
5-(benzyloxy)-2-(hydroxymethyl)-1-(2-morpholino-2-oxoethyl)pyridin-4(1H)-one	5-(benzyloxy)-2-(hydroxymethyl)-1-(2-morpholino-2-oxoethyl)pyridin-4(1H)-one	分子量：358.4 密度：N/A 沸点：N/A 熔点：N/A	946380-24-1	C₁₉H₂₂N₂O₅
N-(benzo[d][1,3]dioxol-5-yl)-2-(5-((3-chlorobenzyl)oxy)-2-(hydroxymethyl)-4-oxopyridin-1(4H)-yl)acetamide	N-(benzo[d][1,3]dioxol-5-yl)-2-(5-((3-chlorobenzyl)oxy)-2-(hydroxymethyl)-4-oxopyridin-1(4H)-yl)acetamide	分子量：442.8 密度：N/A 沸点：N/A 熔点：N/A	946254-63-3	C₂₂H₁₉ClN₂O₆
N-(4-chlorophenyl)-2-(5-((2-fluorobenzyl)oxy)-2-(hydroxymethyl)-4-oxopyridin-1(4H)-yl)acetamide	N-(4-chlorophenyl)-2-(5-((2-fluorobenzyl)oxy)-2-(hydroxymethyl)-4-oxopyridin-1(4H)-yl)acetamide	分子量：416.8 密度：N/A 沸点：N/A 熔点：N/A	946333-56-8	C₂₁H₁₈ClFN₂O₄