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
2,3-dimethoxy-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)benzamide	2,3-dimethoxy-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)benzamide	分子量：317.34 密度：N/A 沸点：N/A 熔点：N/A	1169977-00-7	C₁₆H₁₉N₃O₄
5-bromo-2-chloro-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)benzamide	5-bromo-2-chloro-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)benzamide	分子量：370.63 密度：N/A 沸点：N/A 熔点：N/A	1203200-48-9	C₁₄H₁₃BrClN₃O₂
1-(3-chloro-4-fluorophenyl)-3-(3-(6-oxopyridazin-1(6H)-yl)propyl)urea	1-(3-chloro-4-fluorophenyl)-3-(3-(6-oxopyridazin-1(6H)-yl)propyl)urea	分子量：324.74 密度：N/A 沸点：N/A 熔点：N/A	1203208-63-2	C₁₄H₁₄ClFN₄O₂
1-(3-fluoro-4-methylphenyl)-3-(3-(6-oxopyridazin-1(6H)-yl)propyl)urea	1-(3-fluoro-4-methylphenyl)-3-(3-(6-oxopyridazin-1(6H)-yl)propyl)urea	分子量：304.32 密度：N/A 沸点：N/A 熔点：N/A	1203254-24-3	C₁₅H₁₇FN₄O₂
1-(2-methoxy-5-methylphenyl)-3-(3-(6-oxopyridazin-1(6H)-yl)propyl)urea	1-(2-methoxy-5-methylphenyl)-3-(3-(6-oxopyridazin-1(6H)-yl)propyl)urea	分子量：316.35 密度：N/A 沸点：N/A 熔点：N/A	1170642-99-5	C₁₆H₂₀N₄O₃
1-(5-chloro-2-methoxyphenyl)-3-(3-(6-oxopyridazin-1(6H)-yl)propyl)urea	1-(5-chloro-2-methoxyphenyl)-3-(3-(6-oxopyridazin-1(6H)-yl)propyl)urea	分子量：336.77 密度：N/A 沸点：N/A 熔点：N/A	1172246-26-2	C₁₅H₁₇ClN₄O₃
4-methyl-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)benzenesulfonamide	4-methyl-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)benzenesulfonamide	分子量：307.37 密度：N/A 沸点：N/A 熔点：N/A	1203235-43-1	C₁₄H₁₇N₃O₃S
3,4-dimethyl-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)benzenesulfonamide	3,4-dimethyl-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)benzenesulfonamide	分子量：321.4 密度：N/A 沸点：N/A 熔点：N/A	1203240-02-1	C₁₅H₁₉N₃O₃S
2,4-dimethyl-N-[3-(6-oxo-1,6-dihydropyridazin-1-yl)propyl]benzene-1-sulfonamide	2,4-dimethyl-N-[3-(6-oxo-1,6-dihydropyridazin-1-yl)propyl]benzene-1-sulfonamide	分子量：321.4 密度：N/A 沸点：N/A 熔点：N/A	1203238-99-6	C₁₅H₁₉N₃O₃S
2-methoxy-5-methyl-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)benzenesulfonamide	2-methoxy-5-methyl-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)benzenesulfonamide	分子量：337.4 密度：N/A 沸点：N/A 熔点：N/A	1203310-47-7	C₁₅H₁₉N₃O₄S
2-fluoro-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)benzenesulfonamide	2-fluoro-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)benzenesulfonamide	分子量：311.33 密度：N/A 沸点：N/A 熔点：N/A	1203421-95-7	C₁₃H₁₄FN₃O₃S
4-fluoro-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)-3-(trifluoromethyl)benzenesulfonamide	4-fluoro-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)-3-(trifluoromethyl)benzenesulfonamide	分子量：379.33 密度：N/A 沸点：N/A 熔点：N/A	1203124-75-7	C₁₄H₁₃F₄N₃O₃S
3-chloro-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)benzenesulfonamide	3-chloro-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)benzenesulfonamide	分子量：327.79 密度：N/A 沸点：N/A 熔点：N/A	1203233-45-7	C₁₃H₁₄ClN₃O₃S
5-methyl-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)thiophene-2-sulfonamide	5-methyl-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)thiophene-2-sulfonamide	分子量：313.4 密度：N/A 沸点：N/A 熔点：N/A	1203030-59-4	C₁₂H₁₅N₃O₃S₂
3,5-dimethyl-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)benzenesulfonamide	3,5-dimethyl-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)benzenesulfonamide	分子量：321.4 密度：N/A 沸点：N/A 熔点：N/A	1203056-65-8	C₁₅H₁₉N₃O₃S
2,5-dimethyl-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)benzenesulfonamide	2,5-dimethyl-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)benzenesulfonamide	分子量：321.4 密度：N/A 沸点：N/A 熔点：N/A	1203298-71-8	C₁₅H₁₉N₃O₃S
2,5-diethoxy-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)benzenesulfonamide	2,5-diethoxy-N-(3-(6-oxopyridazin-1(6H)-yl)propyl)benzenesulfonamide	分子量：381.4 密度：N/A 沸点：N/A 熔点：N/A	1203062-11-6	C₁₇H₂₃N₃O₅S
N-(4-(N-(3-(6-oxopyridazin-1(6H)-yl)propyl)sulfamoyl)phenyl)isobutyramide	N-(4-(N-(3-(6-oxopyridazin-1(6H)-yl)propyl)sulfamoyl)phenyl)isobutyramide	分子量：378.4 密度：N/A 沸点：N/A 熔点：N/A	1203139-31-4	C₁₇H₂₂N₄O₄S
N-(4-(N-(3-(6-oxopyridazin-1(6H)-yl)propyl)sulfamoyl)phenyl)butyramide	N-(4-(N-(3-(6-oxopyridazin-1(6H)-yl)propyl)sulfamoyl)phenyl)butyramide	分子量：378.4 密度：N/A 沸点：N/A 熔点：N/A	1203286-78-5	C₁₇H₂₂N₄O₄S
4-bromo-N,N-bis(2-methoxyethyl)-1H-pyrrole-2-carboxamide	4-bromo-N,N-bis(2-methoxyethyl)-1H-pyrrole-2-carboxamide	分子量：305.17 密度：N/A 沸点：N/A 熔点：N/A	1184245-68-8	C₁₁H₁₇BrN₂O₃
ethyl 4-{[4-(4-oxoquinazolin-3(4H)-yl)phenyl]carbonyl}piperazine-1-carboxylate	ethyl 4-{[4-(4-oxoquinazolin-3(4H)-yl)phenyl]carbonyl}piperazine-1-carboxylate	分子量：406.4 密度：N/A 沸点：N/A 熔点：N/A	1190293-75-4	C₂₂H₂₂N₄O₄
alpha-L-Threofuranose	alpha-L-Threofuranose	分子量：120.10 密度：N/A 沸点：N/A 熔点：N/A	1932174-52-1	C₄H₈O₄
6-phosphonatooxy-D-gluconate	6-phosphonatooxy-D-gluconate	分子量：273.11 密度：N/A 沸点：N/A 熔点：N/A	58000-20-7	C₆H₁₀O₁₀P-₃
(S)-fenticonazole	(S)-fenticonazole	分子量：455.4 密度：N/A 沸点：N/A 熔点：N/A	1268165-30-5	C₂₄H₂₀Cl₂N₂OS
2-Cyclopenten-1-one, 3,4-diphenyl-, (R)-	2-Cyclopenten-1-one, 3,4-diphenyl-, (R)-	分子量：234.29 密度：N/A 沸点：N/A 熔点：N/A	4970-78-9	C₁₇H₁₄O
(S)-2-Amino-3-(((R)-1-amino-1-carboxy-2-methylpropan-2-yl)disulfaneyl)-3-methylbutanoic Acid	(S)-2-Amino-3-(((R)-1-amino-1-carboxy-2-methylpropan-2-yl)disulfaneyl)-3-methylbutanoic Acid	分子量：296.4 密度：N/A 沸点：N/A 熔点：N/A	687973-24-6	C₁₀H₂₀N₂O₄S₂
(1R)-2-amino-1-[3-(trifluoromethyl)phenyl]ethanol	(1R)-2-amino-1-[3-(trifluoromethyl)phenyl]ethanol	分子量：205.18 密度：N/A 沸点：N/A 熔点：N/A	1568041-19-9	C₉H₁₀F₃NO
(S)-2-((3-(Trifluoromethyl)phenoxy)methyl)oxirane	(S)-2-((3-(Trifluoromethyl)phenoxy)methyl)oxirane	分子量：218.17 密度：N/A 沸点：N/A 熔点：N/A	1352549-03-1	C₁₀H₉F₃O₂
(1S)-2-amino-1-[4-(benzyloxy)phenyl]ethan-1-ol	(1S)-2-amino-1-[4-(benzyloxy)phenyl]ethan-1-ol	分子量：243.30 密度：N/A 沸点：N/A 熔点：N/A	1787145-34-9	C₁₅H₁₇NO₂
(2R)-N-Ethyltetrahydro-2-furanmethanamine	(2R)-N-Ethyltetrahydro-2-furanmethanamine	分子量：129.20 密度：N/A 沸点：N/A 熔点：N/A	914260-89-2	C₇H₁₅NO
(2S, 3S)-N-Boc-O-t-butylthreonine	(2S, 3S)-N-Boc-O-t-butylthreonine	分子量：275.34 密度：N/A 沸点：N/A 熔点：N/A	474334-59-3	C₁₃H₂₅NO₅
(2S)-1-(2-methylphenyl)propan-2-ol	(2S)-1-(2-methylphenyl)propan-2-ol	分子量：150.22 密度：N/A 沸点：N/A 熔点：N/A	1465909-77-6	C₁₀H₁₄O
1-{5-Methyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}-4-(2,2,2-trifluoroethyl)piperazine	1-{5-Methyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}-4-(2,2,2-trifluoroethyl)piperazine	分子量：300.28 密度：N/A 沸点：N/A 熔点：N/A	1325340-13-3	C₁₂H₁₅F₃N₆
N-(5-methylisoxazol-3-yl)-1-(5-nitrofuran-2-carbonyl)piperidine-4-carboxamide	N-(5-methylisoxazol-3-yl)-1-(5-nitrofuran-2-carbonyl)piperidine-4-carboxamide	分子量：348.31 密度：N/A 沸点：N/A 熔点：N/A	1226453-98-0	C₁₅H₁₆N₄O₆
(E)-1-(3-(furan-2-yl)acryloyl)-N-(5-methylisoxazol-3-yl)piperidine-4-carboxamide	(E)-1-(3-(furan-2-yl)acryloyl)-N-(5-methylisoxazol-3-yl)piperidine-4-carboxamide	分子量：329.35 密度：N/A 沸点：N/A 熔点：N/A	1251711-32-6	C₁₇H₁₉N₃O₄
1-(2-(2-fluorophenoxy)acetyl)-N-(5-methylisoxazol-3-yl)piperidine-4-carboxamide	1-(2-(2-fluorophenoxy)acetyl)-N-(5-methylisoxazol-3-yl)piperidine-4-carboxamide	分子量：361.4 密度：N/A 沸点：N/A 熔点：N/A	1226428-13-2	C₁₈H₂₀FN₃O₄
N-(5-methylisoxazol-3-yl)-1-(2-(methylthio)benzoyl)piperidine-4-carboxamide	N-(5-methylisoxazol-3-yl)-1-(2-(methylthio)benzoyl)piperidine-4-carboxamide	分子量：359.4 密度：N/A 沸点：N/A 熔点：N/A	1226448-09-4	C₁₈H₂₁N₃O₃S
1-(2-(benzo[d]oxazol-2-ylthio)acetyl)-N-(5-methylisoxazol-3-yl)piperidine-4-carboxamide	1-(2-(benzo[d]oxazol-2-ylthio)acetyl)-N-(5-methylisoxazol-3-yl)piperidine-4-carboxamide	分子量：400.5 密度：N/A 沸点：N/A 熔点：N/A	1251683-91-6	C₁₉H₂₀N₄O₄S
1-(2-(benzo[d]thiazol-2-ylthio)acetyl)-N-(5-methylisoxazol-3-yl)piperidine-4-carboxamide	1-(2-(benzo[d]thiazol-2-ylthio)acetyl)-N-(5-methylisoxazol-3-yl)piperidine-4-carboxamide	分子量：416.5 密度：N/A 沸点：N/A 熔点：N/A	1251561-89-3	C₁₉H₂₀N₄O₃S₂
N-(2,3-dihydro-1,4-benzodioxin-6-yl)-2-(methylsulfanyl)-N-[(thiophen-2-yl)methyl]pyridine-3-carboxamide	N-(2,3-dihydro-1,4-benzodioxin-6-yl)-2-(methylsulfanyl)-N-[(thiophen-2-yl)methyl]pyridine-3-carboxamide	分子量：398.5 密度：N/A 沸点：N/A 熔点：N/A	1090720-67-4	C₂₀H₁₈N₂O₃S₂
3-(3,5-dimethylisoxazol-4-yl)-N-(thiophen-2-ylmethyl)propanamide	3-(3,5-dimethylisoxazol-4-yl)-N-(thiophen-2-ylmethyl)propanamide	分子量：264.35 密度：N/A 沸点：N/A 熔点：N/A	1235301-08-2	C₁₃H₁₆N₂O₂S
N-(5-(ethylthio)-1,3,4-thiadiazol-2-yl)-2-(1H-pyrazol-1-yl)acetamide	N-(5-(ethylthio)-1,3,4-thiadiazol-2-yl)-2-(1H-pyrazol-1-yl)acetamide	分子量：269.4 密度：N/A 沸点：N/A 熔点：N/A	1207051-17-9	C₉H₁₁N₅OS₂
N-[(2H-1,3-benzodioxol-5-yl)methyl]-2-(1H-pyrazol-1-yl)acetamide	N-[(2H-1,3-benzodioxol-5-yl)methyl]-2-(1H-pyrazol-1-yl)acetamide	分子量：259.26 密度：N/A 沸点：N/A 熔点：N/A	1207010-08-9	C₁₃H₁₃N₃O₃
N-(4-(1H-tetrazol-1-yl)phenyl)-2-(1H-pyrazol-1-yl)acetamide	N-(4-(1H-tetrazol-1-yl)phenyl)-2-(1H-pyrazol-1-yl)acetamide	分子量：269.26 密度：N/A 沸点：N/A 熔点：N/A	1207022-55-6	C₁₂H₁₁N₇O
N-cyclohexyl-2-(1H-pyrazol-1-yl)acetamide	N-cyclohexyl-2-(1H-pyrazol-1-yl)acetamide	分子量：207.27 密度：N/A 沸点：N/A 熔点：N/A	1170071-25-6	C₁₁H₁₇N₃O
1-(1-Benzoyl-1,2,3,4-tetrahydroquinolin-6-yl)-3-phenethylurea	1-(1-Benzoyl-1,2,3,4-tetrahydroquinolin-6-yl)-3-phenethylurea	分子量：399.5 密度：N/A 沸点：N/A 熔点：N/A	1203385-15-2	C₂₅H₂₅N₃O₂
N-(3-iodophenyl)morpholine-4-carboxamide	N-(3-iodophenyl)morpholine-4-carboxamide	分子量：332.14 密度：N/A 沸点：N/A 熔点：N/A	875795-93-0	C₁₁H₁₃IN₂O₂
N-(4,5-dimethyl-1,3-thiazol-2-yl)-2-(2-pyridyl)-4-quinolinecarboxamide	N-(4,5-dimethyl-1,3-thiazol-2-yl)-2-(2-pyridyl)-4-quinolinecarboxamide	分子量：360.4 密度：N/A 沸点：N/A 熔点：N/A	1144442-83-0	C₂₀H₁₆N₄OS
N-[(2Z)-4,5-dimethyl-1,3-thiazol-2(3H)-ylidene]-4-(4-oxoquinazolin-3(4H)-yl)benzamide	N-[(2Z)-4,5-dimethyl-1,3-thiazol-2(3H)-ylidene]-4-(4-oxoquinazolin-3(4H)-yl)benzamide	分子量：376.4 密度：N/A 沸点：N/A 熔点：N/A	1190278-14-8	C₂₀H₁₆N₄O₂S
4-(4-Benzylpiperazin-1-yl)-3-fluoronitrobenzene	4-(4-Benzylpiperazin-1-yl)-3-fluoronitrobenzene	分子量：315.34 密度：N/A 沸点：N/A 熔点：N/A	850220-35-8	C₁₇H₁₈FN₃O₂