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-chlorophenyl)-2-((5-(4-methoxyphenyl)-1H-imidazol-2-yl)thio)acetamide	N-(3-chlorophenyl)-2-((5-(4-methoxyphenyl)-1H-imidazol-2-yl)thio)acetamide	分子量：373.9 密度：N/A 沸点：N/A 熔点：N/A	941905-90-4	C₁₈H₁₆ClN₃O₂S
50SF8H9Dcz	50SF8H9Dcz	分子量：533.1 密度：N/A 沸点：N/A 熔点：N/A	849105-26-6	C₃₂H₃₇ClN₂O₃
N-(2-chlorobenzyl)-2-((5-(4-methoxyphenyl)-1H-imidazol-2-yl)thio)acetamide	N-(2-chlorobenzyl)-2-((5-(4-methoxyphenyl)-1H-imidazol-2-yl)thio)acetamide	分子量：387.9 密度：N/A 沸点：N/A 熔点：N/A	941956-65-6	C₁₉H₁₈ClN₃O₂S
2-(2,4,6-Tribromophenyl)acetic acid	2-(2,4,6-Tribromophenyl)acetic acid	分子量：372.84 密度：N/A 沸点：N/A 熔点：N/A	58380-13-5	C₈H₅Br₃O₂
N-(2-chlorophenyl)-2-((5-(4-methoxyphenyl)-1H-imidazol-2-yl)thio)acetamide	N-(2-chlorophenyl)-2-((5-(4-methoxyphenyl)-1H-imidazol-2-yl)thio)acetamide	分子量：373.9 密度：N/A 沸点：N/A 熔点：N/A	942009-58-7	C₁₈H₁₆ClN₃O₂S
Ethyl 4-(4-chlorobenzamido)-6-oxo-1-phenyl-1,6-dihydropyridazine-3-carboxylate	Ethyl 4-(4-chlorobenzamido)-6-oxo-1-phenyl-1,6-dihydropyridazine-3-carboxylate	分子量：397.8 密度：N/A 沸点：N/A 熔点：N/A	942009-64-5	C₂₀H₁₆ClN₃O₄
Ethyl 4-(4-bromobenzamido)-6-oxo-1-phenyl-1,6-dihydropyridazine-3-carboxylate	Ethyl 4-(4-bromobenzamido)-6-oxo-1-phenyl-1,6-dihydropyridazine-3-carboxylate	分子量：442.3 密度：N/A 沸点：N/A 熔点：N/A	942009-70-3	C₂₀H₁₆BrN₃O₄
Ethyl 4-(2-cyclopentylacetamido)-6-oxo-1-phenyl-1,6-dihydropyridazine-3-carboxylate	Ethyl 4-(2-cyclopentylacetamido)-6-oxo-1-phenyl-1,6-dihydropyridazine-3-carboxylate	分子量：369.4 密度：N/A 沸点：N/A 熔点：N/A	942009-76-9	C₂₀H₂₃N₃O₄
(1,2-Dimethylazetidin-2-yl)methanol	(1,2-Dimethylazetidin-2-yl)methanol	分子量：115.17 密度：N/A 沸点：N/A 熔点：N/A	2288710-12-1	C₆H₁₃NO
Ethyl 6-oxo-4-(2-phenoxyacetamido)-1-phenyl-1,6-dihydropyridazine-3-carboxylate	Ethyl 6-oxo-4-(2-phenoxyacetamido)-1-phenyl-1,6-dihydropyridazine-3-carboxylate	分子量：393.4 密度：N/A 沸点：N/A 熔点：N/A	941974-25-0	C₂₁H₁₉N₃O₅
Ethyl 4-(3-bromobenzamido)-6-oxo-1-phenyl-1,6-dihydropyridazine-3-carboxylate	Ethyl 4-(3-bromobenzamido)-6-oxo-1-phenyl-1,6-dihydropyridazine-3-carboxylate	分子量：442.3 密度：N/A 沸点：N/A 熔点：N/A	941974-28-3	C₂₀H₁₆BrN₃O₄
Ethyl 4-(cyclohexanecarboxamido)-6-oxo-1-(o-tolyl)-1,6-dihydropyridazine-3-carboxylate	Ethyl 4-(cyclohexanecarboxamido)-6-oxo-1-(o-tolyl)-1,6-dihydropyridazine-3-carboxylate	分子量：383.4 密度：N/A 沸点：N/A 熔点：N/A	941974-31-8	C₂₁H₂₅N₃O₄
Ethyl 4-(3-bromobenzamido)-6-oxo-1-(o-tolyl)-1,6-dihydropyridazine-3-carboxylate	Ethyl 4-(3-bromobenzamido)-6-oxo-1-(o-tolyl)-1,6-dihydropyridazine-3-carboxylate	分子量：456.3 密度：N/A 沸点：N/A 熔点：N/A	941885-77-4	C₂₁H₁₈BrN₃O₄
Ethyl 4-(4-butylcyclohexanecarboxamido)-6-oxo-1-(o-tolyl)-1,6-dihydropyridazine-3-carboxylate	Ethyl 4-(4-butylcyclohexanecarboxamido)-6-oxo-1-(o-tolyl)-1,6-dihydropyridazine-3-carboxylate	分子量：439.5 密度：N/A 沸点：N/A 熔点：N/A	941885-80-9	C₂₅H₃₃N₃O₄
Ethyl 1-(4-fluorophenyl)-4-(2-methylbenzamido)-6-oxo-1,6-dihydropyridazine-3-carboxylate	Ethyl 1-(4-fluorophenyl)-4-(2-methylbenzamido)-6-oxo-1,6-dihydropyridazine-3-carboxylate	分子量：395.4 密度：N/A 沸点：N/A 熔点：N/A	942010-12-0	C₂₁H₁₈FN₃O₄
Ethyl 4-benzamido-1-(4-fluorophenyl)-6-oxo-1,6-dihydropyridazine-3-carboxylate	Ethyl 4-benzamido-1-(4-fluorophenyl)-6-oxo-1,6-dihydropyridazine-3-carboxylate	分子量：381.4 密度：N/A 沸点：N/A 熔点：N/A	941974-61-4	C₂₀H₁₆FN₃O₄
(4-Amino-3-methylphenyl)(4-ethyl-1-piperazinyl)methanone	(4-Amino-3-methylphenyl)(4-ethyl-1-piperazinyl)methanone	分子量：247.34 密度：N/A 沸点：N/A 熔点：N/A	953735-54-1	C₁₄H₂₁N₃O
Ethyl 4-(2-ethylbutanamido)-1-(4-fluorophenyl)-6-oxo-1,6-dihydropyridazine-3-carboxylate	Ethyl 4-(2-ethylbutanamido)-1-(4-fluorophenyl)-6-oxo-1,6-dihydropyridazine-3-carboxylate	分子量：375.4 密度：N/A 沸点：N/A 熔点：N/A	941974-64-7	C₁₉H₂₂FN₃O₄
Ethyl 4-(5-bromofuran-2-carboxamido)-1-(4-fluorophenyl)-6-oxo-1,6-dihydropyridazine-3-carboxylate	Ethyl 4-(5-bromofuran-2-carboxamido)-1-(4-fluorophenyl)-6-oxo-1,6-dihydropyridazine-3-carboxylate	分子量：450.2 密度：N/A 沸点：N/A 熔点：N/A	941885-98-9	C₁₈H₁₃BrFN₃O₅
Ethyl 4-([1,1'-biphenyl]-4-ylcarboxamido)-1-(4-fluorophenyl)-6-oxo-1,6-dihydropyridazine-3-carboxylate	Ethyl 4-([1,1'-biphenyl]-4-ylcarboxamido)-1-(4-fluorophenyl)-6-oxo-1,6-dihydropyridazine-3-carboxylate	分子量：457.5 密度：N/A 沸点：N/A 熔点：N/A	942010-19-7	C₂₆H₂₀FN₃O₄
3-(2-chlorophenyl)-N-(4-(dimethylamino)phenethyl)-5-methylisoxazole-4-carboxamide	3-(2-chlorophenyl)-N-(4-(dimethylamino)phenethyl)-5-methylisoxazole-4-carboxamide	分子量：383.9 密度：N/A 沸点：N/A 熔点：N/A	953169-80-7	C₂₁H₂₂ClN₃O₂
N-(4-(dimethylamino)phenethyl)-4-(trifluoromethyl)benzamide	N-(4-(dimethylamino)phenethyl)-4-(trifluoromethyl)benzamide	分子量：336.4 密度：N/A 沸点：N/A 熔点：N/A	953167-31-2	C₁₈H₁₉F₃N₂O
5-chloro-N-(4-(dimethylamino)phenethyl)-2-methoxybenzamide	5-chloro-N-(4-(dimethylamino)phenethyl)-2-methoxybenzamide	分子量：332.8 密度：N/A 沸点：N/A 熔点：N/A	953169-84-1	C₁₈H₂₁ClN₂O₂
3,3-Dimethyl-1-oxo-indan-5-carbonitrile	3,3-Dimethyl-1-oxo-indan-5-carbonitrile	分子量：185.22 密度：N/A 沸点：N/A 熔点：N/A	124369-62-6	C₁₂H₁₁NO
4-Ethyl-5-methylfuran-2-carbaldehyde	4-Ethyl-5-methylfuran-2-carbaldehyde	分子量：138.16 密度：N/A 沸点：N/A 熔点：N/A	65318-82-3	C₈H₁₀O₂
N-(4-(dimethylamino)phenethyl)-2-(thiophen-2-yl)acetamide	N-(4-(dimethylamino)phenethyl)-2-(thiophen-2-yl)acetamide	分子量：288.4 密度：N/A 沸点：N/A 熔点：N/A	953243-72-6	C₁₆H₂₀N₂OS
N-(4-(dimethylamino)phenethyl)-2-fluorobenzamide	N-(4-(dimethylamino)phenethyl)-2-fluorobenzamide	分子量：286.34 密度：N/A 沸点：N/A 熔点：N/A	952966-78-8	C₁₇H₁₉FN₂O
N-(4-(dimethylamino)phenethyl)-2-(4-fluorophenyl)acetamide	N-(4-(dimethylamino)phenethyl)-2-(4-fluorophenyl)acetamide	分子量：300.4 密度：N/A 沸点：N/A 熔点：N/A	953243-77-1	C₁₈H₂₁FN₂O
N-(4-(dimethylamino)phenethyl)-2-(trifluoromethyl)benzamide	N-(4-(dimethylamino)phenethyl)-2-(trifluoromethyl)benzamide	分子量：336.4 密度：N/A 沸点：N/A 熔点：N/A	953167-39-0	C₁₈H₁₉F₃N₂O
2-chloro-N-(4-(dimethylamino)phenethyl)-6-fluorobenzamide	2-chloro-N-(4-(dimethylamino)phenethyl)-6-fluorobenzamide	分子量：320.8 密度：N/A 沸点：N/A 熔点：N/A	953169-92-1	C₁₇H₁₈ClFN₂O
N-(4-(dimethylamino)phenethyl)-3-phenylpropanamide	N-(4-(dimethylamino)phenethyl)-3-phenylpropanamide	分子量：296.4 密度：N/A 沸点：N/A 熔点：N/A	953167-47-0	C₁₉H₂₄N₂O
3,4-dichloro-N-{2-[4-(dimethylamino)phenyl]ethyl}benzamide	3,4-dichloro-N-{2-[4-(dimethylamino)phenyl]ethyl}benzamide	分子量：337.2 密度：N/A 沸点：N/A 熔点：N/A	953170-00-8	C₁₇H₁₈Cl₂N₂O
N-(4-(dimethylamino)phenethyl)thiophene-2-carboxamide	N-(4-(dimethylamino)phenethyl)thiophene-2-carboxamide	分子量：274.4 密度：N/A 沸点：N/A 熔点：N/A	952966-90-4	C₁₅H₁₈N₂OS
N-(4-(dimethylamino)phenethyl)-4-propylbenzamide	N-(4-(dimethylamino)phenethyl)-4-propylbenzamide	分子量：310.4 密度：N/A 沸点：N/A 熔点：N/A	953243-92-0	C₂₀H₂₆N₂O
N-(4-(dimethylamino)phenethyl)-2-oxo-2H-chromene-3-carboxamide	N-(4-(dimethylamino)phenethyl)-2-oxo-2H-chromene-3-carboxamide	分子量：336.4 密度：N/A 沸点：N/A 熔点：N/A	953167-51-6	C₂₀H₂₀N₂O₃
N-(4-chlorobenzyl)-4-methyl-2-(3-phenylureido)thiazole-5-carboxamide	N-(4-chlorobenzyl)-4-methyl-2-(3-phenylureido)thiazole-5-carboxamide	分子量：400.9 密度：N/A 沸点：N/A 熔点：N/A	942010-42-6	C₁₉H₁₇ClN₄O₂S
Cobalt;copper(1+);[3-diphenylphosphaniumyl-2-(diphenylphosphaniumylmethyl)-2-methylpropyl]-diphenylphosphanium;triphosphirane	Cobalt;copper(1+);[3-diphenylphosphaniumyl-2-(diphenylphosphaniumylmethyl)-2-methylpropyl]-diphenylphosphanium;triphosphirane	分子量：1632.7 密度：N/A 沸点：N/A 熔点：N/A	7237-05-0	C₈₂H₉₄Co₂CuP₁₂+₁₁
4-methyl-N-phenethyl-2-(3-phenylureido)thiazole-5-carboxamide	4-methyl-N-phenethyl-2-(3-phenylureido)thiazole-5-carboxamide	分子量：380.5 密度：N/A 沸点：N/A 熔点：N/A	941916-08-1	C₂₀H₂₀N₄O₂S
4-methyl-N-pentyl-2-(3-phenylureido)thiazole-5-carboxamide	4-methyl-N-pentyl-2-(3-phenylureido)thiazole-5-carboxamide	分子量：346.4 密度：N/A 沸点：N/A 熔点：N/A	942010-45-9	C₁₇H₂₂N₄O₂S
[3-Diphenylphosphaniumyl-2-(diphenylphosphaniumylmethyl)-2-methylpropyl]-diphenylphosphanium;ethane-1,1,2,2-tetracarbonitrile;iron	[3-Diphenylphosphaniumyl-2-(diphenylphosphaniumylmethyl)-2-methylpropyl]-diphenylphosphanium;ethane-1,1,2,2-tetracarbonitrile;iron	分子量：1757.4 密度：N/A 沸点：N/A 熔点：N/A	7242-55-9	C₁₀₀H₉₀Fe₂N₁₂P₆+₆
Ethyl 3-[(4-bromophenyl)methylamino]propanoate	Ethyl 3-[(4-bromophenyl)methylamino]propanoate	分子量：286.16 密度：N/A 沸点：N/A 熔点：N/A	1226108-18-4	C₁₂H₁₆BrNO₂
2,3,3a,4,5,6-Hexahydro-1h-benz[de]isoquinoline	2,3,3a,4,5,6-Hexahydro-1h-benz[de]isoquinoline	分子量：173.25 密度：N/A 沸点：N/A 熔点：N/A	71960-94-6	C₁₂H₁₅N
2-Methylcyclopropane-1-carboximidamide	2-Methylcyclopropane-1-carboximidamide	分子量：98.15 密度：N/A 沸点：N/A 熔点：N/A	753447-73-3	C₅H₁₀N₂
3-Oxo-3-phenylpropanoyl chloride	3-Oxo-3-phenylpropanoyl chloride	分子量：182.60 密度：N/A 沸点：N/A 熔点：N/A	57704-67-3	C₉H₇ClO₂
2-Hydroxy-1-methylcyclobutane-1-carbonitrile	2-Hydroxy-1-methylcyclobutane-1-carbonitrile	分子量：111.14 密度：N/A 沸点：N/A 熔点：N/A	287958-90-1	C₆H₉NO
Benzeneacetic acid, a-nitro-	Benzeneacetic acid, a-nitro-	分子量：181.15 密度：N/A 沸点：N/A 熔点：N/A	518038-88-5	C₈H₇NO₄
Tetrahydro-2H-thiopyran-2-amine	Tetrahydro-2H-thiopyran-2-amine	分子量：117.22 密度：N/A 沸点：N/A 熔点：N/A	1936323-00-0	C₅H₁₁NS
N-(3-methoxybenzyl)-4-methyl-2-(3-phenylureido)thiazole-5-carboxamide	N-(3-methoxybenzyl)-4-methyl-2-(3-phenylureido)thiazole-5-carboxamide	分子量：396.5 密度：N/A 沸点：N/A 熔点：N/A	941916-11-6	C₂₀H₂₀N₄O₃S
N-(3-methoxyphenethyl)-4-methyl-2-(3-phenylureido)thiazole-5-carboxamide	N-(3-methoxyphenethyl)-4-methyl-2-(3-phenylureido)thiazole-5-carboxamide	分子量：410.5 密度：N/A 沸点：N/A 熔点：N/A	941886-22-2	C₂₁H₂₂N₄O₃S
1-(5-(4-Acetylpiperazine-1-carbonyl)-4-methylthiazol-2-yl)-3-phenylurea	1-(5-(4-Acetylpiperazine-1-carbonyl)-4-methylthiazol-2-yl)-3-phenylurea	分子量：387.5 密度：N/A 沸点：N/A 熔点：N/A	942010-48-2	C₁₈H₂₁N₅O₃S