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-(furan-3-ylmethyl)-N-(thiophen-2-ylmethyl)-3-(trifluoromethyl)benzenesulfonamide	N-(furan-3-ylmethyl)-N-(thiophen-2-ylmethyl)-3-(trifluoromethyl)benzenesulfonamide	分子量：401.4 密度：N/A 沸点：N/A 熔点：N/A	1428364-79-7	C₁₇H₁₄F₃NO₃S₂
2,5-dichloro-N-(furan-3-ylmethyl)-N-(thiophen-2-ylmethyl)benzenesulfonamide	2,5-dichloro-N-(furan-3-ylmethyl)-N-(thiophen-2-ylmethyl)benzenesulfonamide	分子量：402.3 密度：N/A 沸点：N/A 熔点：N/A	1448123-41-8	C₁₆H₁₃Cl₂NO₃S₂
1-(2,5-difluorophenyl)-N-(furan-3-ylmethyl)-N-(thiophen-2-ylmethyl)methanesulfonamide	1-(2,5-difluorophenyl)-N-(furan-3-ylmethyl)-N-(thiophen-2-ylmethyl)methanesulfonamide	分子量：383.4 密度：N/A 沸点：N/A 熔点：N/A	1428380-53-3	C₁₇H₁₅F₂NO₃S₂
N-(furan-3-ylmethyl)-N-(thiophen-2-ylmethyl)-1-(4-(trifluoromethyl)phenyl)methanesulfonamide	N-(furan-3-ylmethyl)-N-(thiophen-2-ylmethyl)-1-(4-(trifluoromethyl)phenyl)methanesulfonamide	分子量：415.5 密度：N/A 沸点：N/A 熔点：N/A	1428348-37-1	C₁₈H₁₆F₃NO₃S₂
3-Ethyl-1-(furan-3-ylmethyl)-1-(thiophen-2-ylmethyl)urea	3-Ethyl-1-(furan-3-ylmethyl)-1-(thiophen-2-ylmethyl)urea	分子量：264.35 密度：N/A 沸点：N/A 熔点：N/A	1421445-51-3	C₁₃H₁₆N₂O₂S
1-(Furan-3-ylmethyl)-3-(thiophen-2-yl)-1-(thiophen-2-ylmethyl)urea	1-(Furan-3-ylmethyl)-3-(thiophen-2-yl)-1-(thiophen-2-ylmethyl)urea	分子量：318.4 密度：N/A 沸点：N/A 熔点：N/A	1421456-76-9	C₁₅H₁₄N₂O₂S₂
1-(Furan-3-ylmethyl)-1-(thiophen-2-ylmethyl)-3-(o-tolyl)urea	1-(Furan-3-ylmethyl)-1-(thiophen-2-ylmethyl)-3-(o-tolyl)urea	分子量：326.4 密度：N/A 沸点：N/A 熔点：N/A	1421442-72-9	C₁₈H₁₈N₂O₂S
2-Amino-3,4-dimethoxybenzaldehyde hydrochloride	2-Amino-3,4-dimethoxybenzaldehyde hydrochloride	分子量：217.65 密度：N/A 沸点：N/A 熔点：N/A	1384264-74-7	C₉H₁₂ClNO₃
1-(3,4-Dimethylphenyl)-4-[(3,4-dimethylphenyl)sulfonyl]piperazine	1-(3,4-Dimethylphenyl)-4-[(3,4-dimethylphenyl)sulfonyl]piperazine	分子量：358.5 密度：N/A 沸点：N/A 熔点：N/A	1428151-56-7	C₂₀H₂₆N₂O₂S
5-(4-chloroanilino)-N-(2,3-dihydro-1,4-benzodioxin-6-yl)triazolidine-4-carboxamide	5-(4-chloroanilino)-N-(2,3-dihydro-1,4-benzodioxin-6-yl)triazolidine-4-carboxamide	分子量：375.8 密度：N/A 沸点：N/A 熔点：N/A	1206986-78-8	C₁₇H₁₈ClN₅O₃
1-[(4-methoxy-1-naphthyl)sulfonyl]-2-methyl-1H-benzimidazole	1-[(4-methoxy-1-naphthyl)sulfonyl]-2-methyl-1H-benzimidazole	分子量：352.4 密度：N/A 沸点：N/A 熔点：N/A	1428152-32-2	C₁₉H₁₆N₂O₃S
1-[(4-fluoro-3-methylphenyl)sulfonyl]-2-methyl-1H-benzimidazole	1-[(4-fluoro-3-methylphenyl)sulfonyl]-2-methyl-1H-benzimidazole	分子量：304.3 密度：N/A 沸点：N/A 熔点：N/A	1428151-54-5	C₁₅H₁₃FN₂O₂S
1-[(3,4-dichlorophenyl)sulfonyl]-2-methyl-1H-benzimidazole	1-[(3,4-dichlorophenyl)sulfonyl]-2-methyl-1H-benzimidazole	分子量：341.2 密度：N/A 沸点：N/A 熔点：N/A	1089330-95-9	C₁₄H₁₀Cl₂N₂O₂S
Ethyl 4-[(2-ethoxy-5-isopropylphenyl)sulfonyl]-1-piperazinecarboxylate	Ethyl 4-[(2-ethoxy-5-isopropylphenyl)sulfonyl]-1-piperazinecarboxylate	分子量：384.5 密度：N/A 沸点：N/A 熔点：N/A	1428151-04-5	C₁₈H₂₈N₂O₅S
2-{[(5-Isopropyl-2-methylphenyl)sulfonyl]amino}benzoic acid	2-{[(5-Isopropyl-2-methylphenyl)sulfonyl]amino}benzoic acid	分子量：333.4 密度：N/A 沸点：N/A 熔点：N/A	1428150-36-0	C₁₇H₁₉NO₄S
N-(1-hydroxybutan-2-yl)-4-iodo-3-methylbenzene-1-sulfonamide	N-(1-hydroxybutan-2-yl)-4-iodo-3-methylbenzene-1-sulfonamide	分子量：369.22 密度：N/A 沸点：N/A 熔点：N/A	1428153-75-6	C₁₁H₁₆INO₃S
4-chloro-N-[(furan-2-yl)methyl]-3-(octyloxy)benzene-1-sulfonamide	4-chloro-N-[(furan-2-yl)methyl]-3-(octyloxy)benzene-1-sulfonamide	分子量：399.9 密度：N/A 沸点：N/A 熔点：N/A	942875-83-4	C₁₉H₂₆ClNO₄S
N-(2-methylbenzo[d]thiazol-5-yl)-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazine-3-carboxamide	N-(2-methylbenzo[d]thiazol-5-yl)-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazine-3-carboxamide	分子量：314.4 密度：N/A 沸点：N/A 熔点：N/A	1428367-33-2	C₁₅H₁₄N₄O₂S
N-(2-(3-(furan-2-yl)-6-oxopyridazin-1(6H)-yl)ethyl)-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazine-3-carboxamide	N-(2-(3-(furan-2-yl)-6-oxopyridazin-1(6H)-yl)ethyl)-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazine-3-carboxamide	分子量：355.3 密度：N/A 沸点：N/A 熔点：N/A	1428364-59-3	C₁₇H₁₇N₅O₄
4-chloro-3-methoxy-N-(4-methylpyridin-2-yl)benzene-1-sulfonamide	4-chloro-3-methoxy-N-(4-methylpyridin-2-yl)benzene-1-sulfonamide	分子量：312.77 密度：N/A 沸点：N/A 熔点：N/A	1428151-66-9	C₁₃H₁₃ClN₂O₃S
5,7-Dibromoquinolin-8-yl 4,5-dichloro-2-methylbenzene-1-sulfonate	5,7-Dibromoquinolin-8-yl 4,5-dichloro-2-methylbenzene-1-sulfonate	分子量：526.0 密度：N/A 沸点：N/A 熔点：N/A	1428150-82-6	C₁₆H₉Br₂Cl₂NO₃S
3-(3-methylphenyl)-N-[(4-methylsulfanylphenyl)methyl]-5-oxo-2,3,3a,4,5a,6,7,8,9,9a-decahydro-1H-triazolo[1,5-a]quinazoline-8-carboxamide	3-(3-methylphenyl)-N-[(4-methylsulfanylphenyl)methyl]-5-oxo-2,3,3a,4,5a,6,7,8,9,9a-decahydro-1H-triazolo[1,5-a]quinazoline-8-carboxamide	分子量：465.6 密度：N/A 沸点：N/A 熔点：N/A	1029738-09-7	C₂₅H₃₁N₅O₂S
N-[(2,5-dimethoxyphenyl)methyl]-3-(3-methylphenyl)-5-oxo-2,3,3a,4,5a,6,7,8,9,9a-decahydro-1H-triazolo[1,5-a]quinazoline-8-carboxamide	N-[(2,5-dimethoxyphenyl)methyl]-3-(3-methylphenyl)-5-oxo-2,3,3a,4,5a,6,7,8,9,9a-decahydro-1H-triazolo[1,5-a]quinazoline-8-carboxamide	分子量：479.6 密度：N/A 沸点：N/A 熔点：N/A	1031934-67-4	C₂₆H₃₃N₅O₄
5-ethoxy-2,4-dimethyl-N-(4-methylpyridin-2-yl)benzene-1-sulfonamide	5-ethoxy-2,4-dimethyl-N-(4-methylpyridin-2-yl)benzene-1-sulfonamide	分子量：320.4 密度：N/A 沸点：N/A 熔点：N/A	1428152-40-2	C₁₆H₂₀N₂O₃S
2,5-diethoxy-4-methyl-N-(4-methyl-2-pyridinyl)benzenesulfonamide	2,5-diethoxy-4-methyl-N-(4-methyl-2-pyridinyl)benzenesulfonamide	分子量：350.4 密度：N/A 沸点：N/A 熔点：N/A	1428152-37-7	C₁₇H₂₂N₂O₄S
(4S)-4-{[(2-amino-6-isopropylpyrimidin-4-yl)carbonyl]amino}-1-methyl-L-proline	(4S)-4-{[(2-amino-6-isopropylpyrimidin-4-yl)carbonyl]amino}-1-methyl-L-proline	分子量：307.35 密度：N/A 沸点：N/A 熔点：N/A	1638335-63-3	C₁₄H₂₁N₅O₃
4-butoxy-N-(4-methyl-2-pyridinyl)-1-naphthalenesulfonamide	4-butoxy-N-(4-methyl-2-pyridinyl)-1-naphthalenesulfonamide	分子量：370.5 密度：N/A 沸点：N/A 熔点：N/A	1428153-15-4	C₂₀H₂₂N₂O₃S
[4-(3-Chlorophenyl)piperazin-1-yl]-[5-[4-methyl-2-(4-methylphenyl)-1,3-thiazol-5-yl]pyrazolidin-3-yl]methanone	[4-(3-Chlorophenyl)piperazin-1-yl]-[5-[4-methyl-2-(4-methylphenyl)-1,3-thiazol-5-yl]pyrazolidin-3-yl]methanone	分子量：482.0 密度：N/A 沸点：N/A 熔点：N/A	1298037-96-3	C₂₅H₂₈ClN₅OS
2-(2-Fluoro-4-nitrophenyl)pyrrolidine	2-(2-Fluoro-4-nitrophenyl)pyrrolidine	分子量：210.20 密度：N/A 沸点：N/A 熔点：N/A	1248030-24-1	C₁₀H₁₁FN₂O₂
N-(2-(3,5-dimethyl-1H-pyrazol-1-yl)pyrimidin-5-yl)cyclopentanecarboxamide	N-(2-(3,5-dimethyl-1H-pyrazol-1-yl)pyrimidin-5-yl)cyclopentanecarboxamide	分子量：285.34 密度：N/A 沸点：N/A 熔点：N/A	1421456-22-5	C₁₅H₁₉N₅O
5-methyl-N-(4-methyl-2-pyridinyl)-2-(pentyloxy)benzenesulfonamide	5-methyl-N-(4-methyl-2-pyridinyl)-2-(pentyloxy)benzenesulfonamide	分子量：348.5 密度：N/A 沸点：N/A 熔点：N/A	1428150-90-6	C₁₈H₂₄N₂O₃S
N-(2-hydroxypropyl)-5-iodo-2-methoxybenzene-1-sulfonamide	N-(2-hydroxypropyl)-5-iodo-2-methoxybenzene-1-sulfonamide	分子量：371.19 密度：N/A 沸点：N/A 熔点：N/A	1428151-71-6	C₁₀H₁₄INO₄S
1-({4'-Methoxy-2'-[(4-methylpiperidin-1-yl)sulfonyl]-[1,1'-biphenyl]-4-yl}sulfonyl)-4-methylpiperidine	1-({4'-Methoxy-2'-[(4-methylpiperidin-1-yl)sulfonyl]-[1,1'-biphenyl]-4-yl}sulfonyl)-4-methylpiperidine	分子量：506.7 密度：N/A 沸点：N/A 熔点：N/A	1428150-42-8	C₂₅H₃₄N₂O₅S₂
1,4-Bis(5-chloro-2-ethoxy-4-methylbenzenesulfonyl)-2-methylpiperazine	1,4-Bis(5-chloro-2-ethoxy-4-methylbenzenesulfonyl)-2-methylpiperazine	分子量：565.5 密度：N/A 沸点：N/A 熔点：N/A	1428152-19-5	C₂₃H₃₀Cl₂N₂O₆S₂
1-({4'-Methoxy-2'-[(2-methylpiperidin-1-yl)sulfonyl]-[1,1'-biphenyl]-4-yl}sulfonyl)-2-methylpiperidine	1-({4'-Methoxy-2'-[(2-methylpiperidin-1-yl)sulfonyl]-[1,1'-biphenyl]-4-yl}sulfonyl)-2-methylpiperidine	分子量：506.7 密度：N/A 沸点：N/A 熔点：N/A	1428152-22-0	C₂₅H₃₄N₂O₅S₂
3-chloro-N-[2-(dimethylamino)pyrimidin-5-yl]benzamide	3-chloro-N-[2-(dimethylamino)pyrimidin-5-yl]benzamide	分子量：276.72 密度：N/A 沸点：N/A 熔点：N/A	1396845-42-3	C₁₃H₁₃ClN₄O
2-(1H-Indol-3-YL)-N-{4-[3-(trifluoromethyl)phenoxy]but-2-YN-1-YL}acetamide	2-(1H-Indol-3-YL)-N-{4-[3-(trifluoromethyl)phenoxy]but-2-YN-1-YL}acetamide	分子量：386.4 密度：N/A 沸点：N/A 熔点：N/A	1421526-91-1	C₂₁H₁₇F₃N₂O₂
1,4-Bis(2-ethoxy-5-methylbenzenesulfonyl)-2-methylpiperazine	1,4-Bis(2-ethoxy-5-methylbenzenesulfonyl)-2-methylpiperazine	分子量：496.6 密度：N/A 沸点：N/A 熔点：N/A	1428152-74-2	C₂₃H₃₂N₂O₆S₂
1,4-Bis(5-chloro-2-ethoxybenzenesulfonyl)-2-methylpiperazine	1,4-Bis(5-chloro-2-ethoxybenzenesulfonyl)-2-methylpiperazine	分子量：537.5 密度：N/A 沸点：N/A 熔点：N/A	1428151-83-0	C₂₁H₂₆Cl₂N₂O₆S₂
2-(4-chlorophenoxy)-N-(2-morpholinopyrimidin-5-yl)acetamide	2-(4-chlorophenoxy)-N-(2-morpholinopyrimidin-5-yl)acetamide	分子量：348.78 密度：N/A 沸点：N/A 熔点：N/A	1396845-70-7	C₁₆H₁₇ClN₄O₃
1-(4,5-dichloro-2-methylbenzenesulfonyl)-5,6-dimethyl-1H-1,3-benzodiazole	1-(4,5-dichloro-2-methylbenzenesulfonyl)-5,6-dimethyl-1H-1,3-benzodiazole	分子量：369.3 密度：N/A 沸点：N/A 熔点：N/A	1428151-12-5	C₁₆H₁₄Cl₂N₂O₂S
N-[2-[(3-phenyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)oxy]ethyl]-5-thiophen-2-ylpyrazolidine-3-carboxamide	N-[2-[(3-phenyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)oxy]ethyl]-5-thiophen-2-ylpyrazolidine-3-carboxamide	分子量：435.5 密度：N/A 沸点：N/A 熔点：N/A	1258002-29-7	C₂₁H₂₁N₇O₂S
(4-Ethoxyphenyl)(3-(methylsulfonyl)pyrrolidin-1-yl)methanone	(4-Ethoxyphenyl)(3-(methylsulfonyl)pyrrolidin-1-yl)methanone	分子量：297.37 密度：N/A 沸点：N/A 熔点：N/A	1448076-02-5	C₁₄H₁₉NO₄S
1-[4-ethoxy-3-(propan-2-yl)benzenesulfonyl]-5,6-dimethyl-1H-1,3-benzodiazole	1-[4-ethoxy-3-(propan-2-yl)benzenesulfonyl]-5,6-dimethyl-1H-1,3-benzodiazole	分子量：372.5 密度：N/A 沸点：N/A 熔点：N/A	1428153-59-6	C₂₀H₂₄N₂O₃S
3-fluoro-N-[2-(4-phenylpiperazin-1-yl)pyrimidin-5-yl]benzamide	3-fluoro-N-[2-(4-phenylpiperazin-1-yl)pyrimidin-5-yl]benzamide	分子量：377.4 密度：N/A 沸点：N/A 熔点：N/A	1396790-68-3	C₂₁H₂₀FN₅O
1-[(4-phenyl-1,3-thiazol-2-yl)methyl]-4-(3-phenyl-1H-pyrazole-5-carbonyl)piperazine	1-[(4-phenyl-1,3-thiazol-2-yl)methyl]-4-(3-phenyl-1H-pyrazole-5-carbonyl)piperazine	分子量：433.6 密度：N/A 沸点：N/A 熔点：N/A	1239482-32-6	C₂₄H₂₇N₅OS
1,4-Bis(4-bromo-3-methoxybenzenesulfonyl)-2-methylpiperazine	1,4-Bis(4-bromo-3-methoxybenzenesulfonyl)-2-methylpiperazine	分子量：598.3 密度：N/A 沸点：N/A 熔点：N/A	1428153-41-6	C₁₉H₂₂Br₂N₂O₆S₂
1,4-Bis(2,5-diethoxy-4-methylbenzenesulfonyl)-1,4-diazepane	1,4-Bis(2,5-diethoxy-4-methylbenzenesulfonyl)-1,4-diazepane	分子量：584.7 密度：N/A 沸点：N/A 熔点：N/A	1428152-10-6	C₂₇H₄₀N₂O₈S₂
4-Chloro-2-(piperidin-4-yl)phenol hydrochloride	4-Chloro-2-(piperidin-4-yl)phenol hydrochloride	分子量：248.15 密度：N/A 沸点：N/A 熔点：N/A	1311254-53-1	C₁₁H₁₅Cl₂NO
[4-(1H-benzimidazol-2-ylmethyl)piperazin-1-yl]-(5-phenylpyrazolidin-3-yl)methanone	[4-(1H-benzimidazol-2-ylmethyl)piperazin-1-yl]-(5-phenylpyrazolidin-3-yl)methanone	分子量：390.5 密度：N/A 沸点：N/A 熔点：N/A	1240314-88-8	C₂₂H₂₆N₆O