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
4-methoxy-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}benzamide	4-methoxy-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}benzamide	分子量：353.4 密度：N/A 沸点：N/A 熔点：N/A	898492-80-3	C₁₉H₁₉N₃O₄
N-(2-methanesulfonylphenyl)-2,5-dimethoxybenzamide	N-(2-methanesulfonylphenyl)-2,5-dimethoxybenzamide	分子量：335.4 密度：N/A 沸点：N/A 熔点：N/A	955846-53-4	C₁₆H₁₇NO₅S
1-(4-methylphenyl)-N-{4-[(2-methylpiperidin-1-yl)sulfonyl]phenyl}-4-oxo-1,4-dihydropyridazine-3-carboxamide	1-(4-methylphenyl)-N-{4-[(2-methylpiperidin-1-yl)sulfonyl]phenyl}-4-oxo-1,4-dihydropyridazine-3-carboxamide	分子量：466.6 密度：N/A 沸点：N/A 熔点：N/A	898492-89-2	C₂₄H₂₆N₄O₄S
N-[3-(4-methoxyphenyl)-1,2,4-thiadiazol-5-yl]thiophene-2-carboxamide	N-[3-(4-methoxyphenyl)-1,2,4-thiadiazol-5-yl]thiophene-2-carboxamide	分子量：317.4 密度：N/A 沸点：N/A 熔点：N/A	898493-66-8	C₁₄H₁₁N₃O₂S₂
N-[3-(4-methoxyphenyl)-1,2,4-thiadiazol-5-yl]furan-2-carboxamide	N-[3-(4-methoxyphenyl)-1,2,4-thiadiazol-5-yl]furan-2-carboxamide	分子量：301.32 密度：N/A 沸点：N/A 熔点：N/A	898493-94-2	C₁₄H₁₁N₃O₃S
N-[3-(4-methoxyphenyl)-1,2,4-thiadiazol-5-yl]-2-oxo-2H-chromene-3-carboxamide	N-[3-(4-methoxyphenyl)-1,2,4-thiadiazol-5-yl]-2-oxo-2H-chromene-3-carboxamide	分子量：379.4 密度：N/A 沸点：N/A 熔点：N/A	898494-30-9	C₁₉H₁₃N₃O₄S
2-(2-methoxyphenoxy)-N-[3-(4-methoxyphenyl)-1,2,4-thiadiazol-5-yl]propanamide	2-(2-methoxyphenoxy)-N-[3-(4-methoxyphenyl)-1,2,4-thiadiazol-5-yl]propanamide	分子量：385.4 密度：N/A 沸点：N/A 熔点：N/A	898501-07-0	C₁₉H₁₉N₃O₄S
2-(2-fluorophenoxy)-N-[3-(4-methoxyphenyl)-1,2,4-thiadiazol-5-yl]propanamide	2-(2-fluorophenoxy)-N-[3-(4-methoxyphenyl)-1,2,4-thiadiazol-5-yl]propanamide	分子量：373.4 密度：N/A 沸点：N/A 熔点：N/A	898501-14-9	C₁₈H₁₆FN₃O₃S
2-(4-fluorophenoxy)-N-[3-(4-methoxyphenyl)-1,2,4-thiadiazol-5-yl]acetamide	2-(4-fluorophenoxy)-N-[3-(4-methoxyphenyl)-1,2,4-thiadiazol-5-yl]acetamide	分子量：359.4 密度：N/A 沸点：N/A 熔点：N/A	898501-30-9	C₁₇H₁₄FN₃O₃S
2-(4-bromophenoxy)-N-[3-(4-methoxyphenyl)-1,2,4-thiadiazol-5-yl]acetamide	2-(4-bromophenoxy)-N-[3-(4-methoxyphenyl)-1,2,4-thiadiazol-5-yl]acetamide	分子量：420.3 密度：N/A 沸点：N/A 熔点：N/A	898501-63-8	C₁₇H₁₄BrN₃O₃S
N-{4-[(2,6-dimethylmorpholin-4-yl)sulfonyl]phenyl}-1-(4-methylphenyl)-4-oxo-1,4-dihydropyridazine-3-carboxamide	N-{4-[(2,6-dimethylmorpholin-4-yl)sulfonyl]phenyl}-1-(4-methylphenyl)-4-oxo-1,4-dihydropyridazine-3-carboxamide	分子量：482.6 密度：N/A 沸点：N/A 熔点：N/A	898501-70-7	C₂₄H₂₆N₄O₅S
1-(4-methylphenyl)-N-[4-(morpholin-4-ylsulfonyl)phenyl]-4-oxo-1,4-dihydropyridazine-3-carboxamide	1-(4-methylphenyl)-N-[4-(morpholin-4-ylsulfonyl)phenyl]-4-oxo-1,4-dihydropyridazine-3-carboxamide	分子量：454.5 密度：N/A 沸点：N/A 熔点：N/A	898502-03-9	C₂₂H₂₂N₄O₅S
N-(furan-2-ylmethyl)-4-(2-methylpropoxy)-N-(thiophen-2-ylmethyl)benzamide	N-(furan-2-ylmethyl)-4-(2-methylpropoxy)-N-(thiophen-2-ylmethyl)benzamide	分子量：369.5 密度：N/A 沸点：N/A 熔点：N/A	898502-72-2	C₂₁H₂₃NO₃S
3-chloro-N-(furan-2-ylmethyl)-4-methoxy-N-(thiophen-2-ylmethyl)benzamide	3-chloro-N-(furan-2-ylmethyl)-4-methoxy-N-(thiophen-2-ylmethyl)benzamide	分子量：361.8 密度：N/A 沸点：N/A 熔点：N/A	898502-88-0	C₁₈H₁₆ClNO₃S
2-(4-tert-butylphenoxy)-N-(furan-2-ylmethyl)-N-(thiophen-2-ylmethyl)acetamide	2-(4-tert-butylphenoxy)-N-(furan-2-ylmethyl)-N-(thiophen-2-ylmethyl)acetamide	分子量：383.5 密度：N/A 沸点：N/A 熔点：N/A	898503-08-7	C₂₂H₂₅NO₃S
N-[3-(4-chlorophenyl)-5-isoxazolyl]-2-(4-methylphenoxy)acetamide	N-[3-(4-chlorophenyl)-5-isoxazolyl]-2-(4-methylphenoxy)acetamide	分子量：342.8 密度：N/A 沸点：N/A 熔点：N/A	898503-56-5	C₁₈H₁₅ClN₂O₃
2-(2-chlorophenoxy)-N-[3-(4-methoxyphenyl)-1,2,4-thiadiazol-5-yl]propanamide	2-(2-chlorophenoxy)-N-[3-(4-methoxyphenyl)-1,2,4-thiadiazol-5-yl]propanamide	分子量：389.9 密度：N/A 沸点：N/A 熔点：N/A	898503-72-5	C₁₈H₁₆ClN₃O₃S
2-(4-fluorophenoxy)-N-[3-(4-methoxyphenyl)-1,2,4-thiadiazol-5-yl]propanamide	2-(4-fluorophenoxy)-N-[3-(4-methoxyphenyl)-1,2,4-thiadiazol-5-yl]propanamide	分子量：373.4 密度：N/A 沸点：N/A 熔点：N/A	898503-87-2	C₁₈H₁₆FN₃O₃S
N-(tetrahydrofuran-2-ylmethyl)-N-(3,4,5-trimethoxybenzyl)furan-2-carboxamide	N-(tetrahydrofuran-2-ylmethyl)-N-(3,4,5-trimethoxybenzyl)furan-2-carboxamide	分子量：375.4 密度：N/A 沸点：N/A 熔点：N/A	898504-03-5	C₂₀H₂₅NO₆
N-(tetrahydrofuran-2-ylmethyl)-N-(3,4,5-trimethoxybenzyl)thiophene-2-carboxamide	N-(tetrahydrofuran-2-ylmethyl)-N-(3,4,5-trimethoxybenzyl)thiophene-2-carboxamide	分子量：391.5 密度：N/A 沸点：N/A 熔点：N/A	898504-11-5	C₂₀H₂₅NO₅S
1-(3-chlorophenyl)-4-oxo-N-[5-(prop-2-en-1-ylsulfanyl)-1,3,4-thiadiazol-2-yl]-1,4-dihydropyridazine-3-carboxamide	1-(3-chlorophenyl)-4-oxo-N-[5-(prop-2-en-1-ylsulfanyl)-1,3,4-thiadiazol-2-yl]-1,4-dihydropyridazine-3-carboxamide	分子量：405.9 密度：N/A 沸点：N/A 熔点：N/A	898504-73-9	C₁₆H₁₂ClN₅O₂S₂
1-(4-methylphenyl)-N-[6-(methylsulfonyl)-1,3-benzothiazol-2-yl]-4-oxo-1,4-dihydropyridazine-3-carboxamide	1-(4-methylphenyl)-N-[6-(methylsulfonyl)-1,3-benzothiazol-2-yl]-4-oxo-1,4-dihydropyridazine-3-carboxamide	分子量：440.5 密度：N/A 沸点：N/A 熔点：N/A	892640-51-6	C₂₀H₁₆N₄O₄S₂
1-(4-methylphenyl)-4-oxo-N-{3-[(tetrahydrofuran-2-ylmethyl)carbamoyl]-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl}-1,4-dihydropyridazine-3-carboxamide	1-(4-methylphenyl)-4-oxo-N-{3-[(tetrahydrofuran-2-ylmethyl)carbamoyl]-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl}-1,4-dihydropyridazine-3-carboxamide	分子量：478.6 密度：N/A 沸点：N/A 熔点：N/A	898504-96-6	C₂₅H₂₆N₄O₄S
1-(4-methylphenyl)-4-oxo-N-[4-(1,3-thiazol-2-ylsulfamoyl)phenyl]-1,4-dihydropyridazine-3-carboxamide	1-(4-methylphenyl)-4-oxo-N-[4-(1,3-thiazol-2-ylsulfamoyl)phenyl]-1,4-dihydropyridazine-3-carboxamide	分子量：467.5 密度：N/A 沸点：N/A 熔点：N/A	879758-97-1	C₂₁H₁₇N₅O₄S₂
1-(4-methylphenyl)-4-oxo-N-[4-(pyrimidin-2-ylsulfamoyl)phenyl]-1,4-dihydropyridazine-3-carboxamide	1-(4-methylphenyl)-4-oxo-N-[4-(pyrimidin-2-ylsulfamoyl)phenyl]-1,4-dihydropyridazine-3-carboxamide	分子量：462.5 密度：N/A 沸点：N/A 熔点：N/A	879474-74-5	C₂₂H₁₈N₆O₄S
N-(3-methylphenyl)-1-(4-methylphenyl)-4-oxo-1,4-dihydropyridazine-3-carboxamide	N-(3-methylphenyl)-1-(4-methylphenyl)-4-oxo-1,4-dihydropyridazine-3-carboxamide	分子量：319.4 密度：N/A 沸点：N/A 熔点：N/A	898505-34-5	C₁₉H₁₇N₃O₂
1-(3-chlorophenyl)-N-{3-[(furan-2-ylmethyl)carbamoyl]-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl}-4-oxo-1,4-dihydropyridazine-3-carboxamide	1-(3-chlorophenyl)-N-{3-[(furan-2-ylmethyl)carbamoyl]-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl}-4-oxo-1,4-dihydropyridazine-3-carboxamide	分子量：494.9 密度：N/A 沸点：N/A 熔点：N/A	898505-41-4	C₂₄H₁₉ClN₄O₄S
N-(4-ethoxybenzo[d]thiazol-2-yl)-2-(naphthalen-2-yl)acetamide	N-(4-ethoxybenzo[d]thiazol-2-yl)-2-(naphthalen-2-yl)acetamide	分子量：362.4 密度：N/A 沸点：N/A 熔点：N/A	955827-77-7	C₂₁H₁₈N₂O₂S
N-(4,5-dihydronaphtho[1,2-d]thiazol-2-yl)-2-(naphthalen-2-yl)acetamide	N-(4,5-dihydronaphtho[1,2-d]thiazol-2-yl)-2-(naphthalen-2-yl)acetamide	分子量：370.5 密度：N/A 沸点：N/A 熔点：N/A	955816-02-1	C₂₃H₁₈N₂OS
Isobutyl 2-({[1-(3-chlorophenyl)-4-oxo-1,4-dihydropyridazin-3-yl]carbonyl}amino)-4-methyl-1,3-thiazole-5-carboxylate	Isobutyl 2-({[1-(3-chlorophenyl)-4-oxo-1,4-dihydropyridazin-3-yl]carbonyl}amino)-4-methyl-1,3-thiazole-5-carboxylate	分子量：446.9 密度：N/A 沸点：N/A 熔点：N/A	898505-92-5	C₂₀H₁₉ClN₄O₄S
1-(3-chlorophenyl)-4-oxo-N-{3-[(tetrahydrofuran-2-ylmethyl)carbamoyl]-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl}-1,4-dihydropyridazine-3-carboxamide	1-(3-chlorophenyl)-4-oxo-N-{3-[(tetrahydrofuran-2-ylmethyl)carbamoyl]-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl}-1,4-dihydropyridazine-3-carboxamide	分子量：499.0 密度：N/A 沸点：N/A 熔点：N/A	898505-99-2	C₂₄H₂₃ClN₄O₄S
N-{4-[(4,6-dimethylpyrimidin-2-yl)sulfamoyl]phenyl}-1-(4-methylphenyl)-4-oxo-1,4-dihydropyridazine-3-carboxamide	N-{4-[(4,6-dimethylpyrimidin-2-yl)sulfamoyl]phenyl}-1-(4-methylphenyl)-4-oxo-1,4-dihydropyridazine-3-carboxamide	分子量：490.5 密度：N/A 沸点：N/A 熔点：N/A	898506-20-2	C₂₄H₂₂N₆O₄S
N-[2-(4-chlorophenyl)-2-(piperidin-1-yl)ethyl]-2-(3,4-dimethylphenoxy)acetamide	N-[2-(4-chlorophenyl)-2-(piperidin-1-yl)ethyl]-2-(3,4-dimethylphenoxy)acetamide	分子量：400.9 密度：N/A 沸点：N/A 熔点：N/A	898506-65-5	C₂₃H₂₉ClN₂O₂
N-[2-(4-chlorophenyl)-2-(piperidin-1-yl)ethyl]-2-(4-ethylphenoxy)acetamide	N-[2-(4-chlorophenyl)-2-(piperidin-1-yl)ethyl]-2-(4-ethylphenoxy)acetamide	分子量：400.9 密度：N/A 沸点：N/A 熔点：N/A	898506-96-2	C₂₃H₂₉ClN₂O₂
2-(4-chloro-2-methylphenoxy)-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}acetamide	2-(4-chloro-2-methylphenoxy)-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}acetamide	分子量：401.8 密度：N/A 沸点：N/A 熔点：N/A	898507-14-7	C₂₀H₂₀ClN₃O₄
2-[4-(propan-2-yl)phenoxy]-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}acetamide	2-[4-(propan-2-yl)phenoxy]-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}acetamide	分子量：395.5 密度：N/A 沸点：N/A 熔点：N/A	898507-24-9	C₂₂H₂₅N₃O₄
2-(4-chloro-3-methylphenoxy)-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}acetamide	2-(4-chloro-3-methylphenoxy)-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}acetamide	分子量：401.8 密度：N/A 沸点：N/A 熔点：N/A	898507-34-1	C₂₀H₂₀ClN₃O₄
2-(2-methoxyphenoxy)-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}acetamide	2-(2-methoxyphenoxy)-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}acetamide	分子量：383.4 密度：N/A 沸点：N/A 熔点：N/A	898507-39-6	C₂₀H₂₁N₃O₅
2-phenoxy-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}acetamide	2-phenoxy-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}acetamide	分子量：353.4 密度：N/A 沸点：N/A 熔点：N/A	898468-67-2	C₁₉H₁₉N₃O₄
3-ethoxy-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}benzamide	3-ethoxy-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}benzamide	分子量：367.4 密度：N/A 沸点：N/A 熔点：N/A	898468-71-8	C₂₀H₂₁N₃O₄
4-(2-methylpropoxy)-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}benzamide	4-(2-methylpropoxy)-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}benzamide	分子量：395.5 密度：N/A 沸点：N/A 熔点：N/A	898468-79-6	C₂₂H₂₅N₃O₄
2-(4-methoxyphenoxy)-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}acetamide	2-(4-methoxyphenoxy)-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}acetamide	分子量：383.4 密度：N/A 沸点：N/A 熔点：N/A	898468-83-2	C₂₀H₂₁N₃O₅
ethyl 4-{[(6,8-dimethyl-4-oxo-4H-chromen-2-yl)carbonyl]amino}benzoate	ethyl 4-{[(6,8-dimethyl-4-oxo-4H-chromen-2-yl)carbonyl]amino}benzoate	分子量：365.4 密度：N/A 沸点：N/A 熔点：N/A	898468-97-8	C₂₁H₁₉NO₅
4-bromo-N-[2-(furan-2-yl)-2-(morpholin-4-yl)ethyl]benzamide	4-bromo-N-[2-(furan-2-yl)-2-(morpholin-4-yl)ethyl]benzamide	分子量：379.2 密度：N/A 沸点：N/A 熔点：N/A	898469-39-1	C₁₇H₁₉BrN₂O₃
4-chloro-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}benzamide	4-chloro-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}benzamide	分子量：357.8 密度：N/A 沸点：N/A 熔点：N/A	898470-35-4	C₁₈H₁₆ClN₃O₃
N-(4-(benzo[d][1,3]dioxol-5-yl)thiazol-2-yl)-2-(naphthalen-2-yl)acetamide	N-(4-(benzo[d][1,3]dioxol-5-yl)thiazol-2-yl)-2-(naphthalen-2-yl)acetamide	分子量：388.4 密度：N/A 沸点：N/A 熔点：N/A	955816-44-1	C₂₂H₁₆N₂O₃S
2-(4-chlorophenoxy)-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}acetamide	2-(4-chlorophenoxy)-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}acetamide	分子量：387.8 密度：N/A 沸点：N/A 熔点：N/A	898470-50-3	C₁₉H₁₈ClN₃O₄
2-(4-fluorophenoxy)-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}acetamide	2-(4-fluorophenoxy)-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}acetamide	分子量：371.4 密度：N/A 沸点：N/A 熔点：N/A	898470-55-8	C₁₉H₁₈FN₃O₄
N-(3-cyano-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophen-2-yl)-2-(naphthalen-2-yl)acetamide	N-(3-cyano-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophen-2-yl)-2-(naphthalen-2-yl)acetamide	分子量：360.5 密度：N/A 沸点：N/A 熔点：N/A	955828-45-2	C₂₂H₂₀N₂OS
3,4,5-trimethoxy-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}benzamide	3,4,5-trimethoxy-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}benzamide	分子量：413.4 密度：N/A 沸点：N/A 熔点：N/A	898470-73-0	C₂₁H₂₃N₃O₆