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-(4-(4-(tert-butyl)benzamido)phenyl)-N-(2,2,2-trifluoroethyl)-2H-tetrazole-5-carboxamide	2-(4-(4-(tert-butyl)benzamido)phenyl)-N-(2,2,2-trifluoroethyl)-2H-tetrazole-5-carboxamide	分子量：446.4 密度：N/A 沸点：N/A 熔点：N/A	1396802-39-3	C₂₁H₂₁F₃N₆O₂
2-(4-(3-fluorobenzamido)phenyl)-N-(2,2,2-trifluoroethyl)-2H-tetrazole-5-carboxamide	2-(4-(3-fluorobenzamido)phenyl)-N-(2,2,2-trifluoroethyl)-2H-tetrazole-5-carboxamide	分子量：408.31 密度：N/A 沸点：N/A 熔点：N/A	1396637-77-6	C₁₇H₁₂F₄N₆O₂
(E)-2-(4-cinnamamidophenyl)-N-(2,2,2-trifluoroethyl)-2H-tetrazole-5-carboxamide	(E)-2-(4-cinnamamidophenyl)-N-(2,2,2-trifluoroethyl)-2H-tetrazole-5-carboxamide	分子量：416.4 密度：N/A 沸点：N/A 熔点：N/A	1396892-96-8	C₁₉H₁₅F₃N₆O₂
2-(4-(thiophene-3-carboxamido)phenyl)-N-(2,2,2-trifluoroethyl)-2H-tetrazole-5-carboxamide	2-(4-(thiophene-3-carboxamido)phenyl)-N-(2,2,2-trifluoroethyl)-2H-tetrazole-5-carboxamide	分子量：396.3 密度：N/A 沸点：N/A 熔点：N/A	1396558-73-8	C₁₅H₁₁F₃N₆O₂S
5-bromo-2-chloro-N-(4-(dimethylamino)but-2-yn-1-yl)benzamide	5-bromo-2-chloro-N-(4-(dimethylamino)but-2-yn-1-yl)benzamide	分子量：329.62 密度：N/A 沸点：N/A 熔点：N/A	1396800-70-6	C₁₃H₁₄BrClN₂O
N-(4-(dimethylamino)but-2-yn-1-yl)-2,2-diphenylacetamide	N-(4-(dimethylamino)but-2-yn-1-yl)-2,2-diphenylacetamide	分子量：306.4 密度：N/A 沸点：N/A 熔点：N/A	1396878-56-0	C₂₀H₂₂N₂O
1-Benzyl-3-[4-(dimethylamino)but-2-yn-1-yl]urea	1-Benzyl-3-[4-(dimethylamino)but-2-yn-1-yl]urea	分子量：245.32 密度：N/A 沸点：N/A 熔点：N/A	1396676-80-4	C₁₄H₁₉N₃O
N-(4-(dimethylamino)but-2-yn-1-yl)-4-methylbenzenesulfonamide	N-(4-(dimethylamino)but-2-yn-1-yl)-4-methylbenzenesulfonamide	分子量：266.36 密度：N/A 沸点：N/A 熔点：N/A	1396676-92-8	C₁₃H₁₈N₂O₂S
N-(4-(dimethylamino)but-2-yn-1-yl)quinoline-8-sulfonamide	N-(4-(dimethylamino)but-2-yn-1-yl)quinoline-8-sulfonamide	分子量：303.4 密度：N/A 沸点：N/A 熔点：N/A	1421584-61-3	C₁₅H₁₇N₃O₂S
methyl 3-(N-(4-(dimethylamino)but-2-yn-1-yl)sulfamoyl)thiophene-2-carboxylate	methyl 3-(N-(4-(dimethylamino)but-2-yn-1-yl)sulfamoyl)thiophene-2-carboxylate	分子量：316.4 密度：N/A 沸点：N/A 熔点：N/A	1396684-33-5	C₁₂H₁₆N₂O₄S₂
(E)-N-(4-(dimethylamino)but-2-yn-1-yl)-2-(p-tolyl)ethenesulfonamide	(E)-N-(4-(dimethylamino)but-2-yn-1-yl)-2-(p-tolyl)ethenesulfonamide	分子量：292.4 密度：N/A 沸点：N/A 熔点：N/A	1396891-12-5	C₁₅H₂₀N₂O₂S
N-[4-(diisopropylamino)but-2-ynyl]-4-methoxy-benzamide	N-[4-(diisopropylamino)but-2-ynyl]-4-methoxy-benzamide	分子量：302.4 密度：N/A 沸点：N/A 熔点：N/A	1351609-78-3	C₁₈H₂₆N₂O₂
N-[4-(diisopropylamino)but-2-ynyl]-3,4-dimethoxy-benzamide	N-[4-(diisopropylamino)but-2-ynyl]-3,4-dimethoxy-benzamide	分子量：332.4 密度：N/A 沸点：N/A 熔点：N/A	1351657-84-5	C₁₉H₂₈N₂O₃
N-[4-(diisopropylamino)but-2-ynyl]-2-(1-naphthyl)acetamide	N-[4-(diisopropylamino)but-2-ynyl]-2-(1-naphthyl)acetamide	分子量：336.5 密度：N/A 沸点：N/A 熔点：N/A	1396866-00-4	C₂₂H₂₈N₂O
N-[4-(diisopropylamino)but-2-ynyl]-3-(4-methoxyphenyl)propanamide	N-[4-(diisopropylamino)but-2-ynyl]-3-(4-methoxyphenyl)propanamide	分子量：330.5 密度：N/A 沸点：N/A 熔点：N/A	1421584-71-5	C₂₀H₃₀N₂O₂
N-[4-(diisopropylamino)but-2-ynyl]-2-(4-fluorophenyl)sulfanyl-acetamide	N-[4-(diisopropylamino)but-2-ynyl]-2-(4-fluorophenyl)sulfanyl-acetamide	分子量：336.5 密度：N/A 沸点：N/A 熔点：N/A	1396561-13-9	C₁₈H₂₅FN₂OS
N-[4-(diisopropylamino)but-2-ynyl]-1H-indole-6-carboxamide	N-[4-(diisopropylamino)but-2-ynyl]-1H-indole-6-carboxamide	分子量：311.4 密度：N/A 沸点：N/A 熔点：N/A	1396814-33-7	C₁₉H₂₅N₃O
N-cyclopropyl-2-[4-(2-methyl-2H-tetrazol-5-yl)phenoxy]acetamide	N-cyclopropyl-2-[4-(2-methyl-2H-tetrazol-5-yl)phenoxy]acetamide	分子量：273.29 密度：N/A 沸点：N/A 熔点：N/A	1574398-22-3	C₁₃H₁₅N₅O₂
3-Amino-5-methylisonicotinaldehyde	3-Amino-5-methylisonicotinaldehyde	分子量：136.15 密度：N/A 沸点：N/A 熔点：N/A	1289077-92-4	C₇H₈N₂O
tert-Butyl N-[1-(furan-2-yl)-1-oxopropan-2-yl]carbamate	tert-Butyl N-[1-(furan-2-yl)-1-oxopropan-2-yl]carbamate	分子量：239.27 密度：N/A 沸点：N/A 熔点：N/A	1935268-84-0	C₁₂H₁₇NO₄
ethyl 7-oxo-3-phenyl-3,3a,4,5,6,7a-hexahydro-2H-[1,2]thiazolo[4,5-b]pyridine-6-carboxylate	ethyl 7-oxo-3-phenyl-3,3a,4,5,6,7a-hexahydro-2H-[1,2]thiazolo[4,5-b]pyridine-6-carboxylate	分子量：306.4 密度：N/A 沸点：N/A 熔点：N/A	1325304-79-7	C₁₅H₁₈N₂O₃S
5-(2,3-Dihydro-1,4-benzodioxin-6-yl)-8-thia-3,5,10-triazatricyclo[7.4.0.02,7]trideca-1(9),2,10,12-tetraene-4,6-dione	5-(2,3-Dihydro-1,4-benzodioxin-6-yl)-8-thia-3,5,10-triazatricyclo[7.4.0.02,7]trideca-1(9),2,10,12-tetraene-4,6-dione	分子量：353.4 密度：N/A 沸点：N/A 熔点：N/A	1326837-40-4	C₁₇H₁₁N₃O₄S
N-(4-ethylphenyl)-2-(8-methoxy-6-methyl-10-oxo-1,3,4,10a-tetrahydrobenzo[b][1,6]naphthyridin-2-yl)acetamide	N-(4-ethylphenyl)-2-(8-methoxy-6-methyl-10-oxo-1,3,4,10a-tetrahydrobenzo[b][1,6]naphthyridin-2-yl)acetamide	分子量：405.5 密度：N/A 沸点：N/A 熔点：N/A	1326857-25-3	C₂₄H₂₇N₃O₃
N-(2-chlorophenyl)-2-(8-methoxy-6-methyl-10-oxo-1,3,4,4a,5,5a,6,7,8,9,9a,10a-dodecahydrobenzo[b][1,6]naphthyridin-2-yl)acetamide	N-(2-chlorophenyl)-2-(8-methoxy-6-methyl-10-oxo-1,3,4,4a,5,5a,6,7,8,9,9a,10a-dodecahydrobenzo[b][1,6]naphthyridin-2-yl)acetamide	分子量：419.9 密度：N/A 沸点：N/A 熔点：N/A	1326841-46-6	C₂₂H₃₀ClN₃O₃
N-(2-bicyclo[2.2.1]hept-5-enylmethyl)-2-(4-oxo-1H-phthalazin-1-yl)acetamide	N-(2-bicyclo[2.2.1]hept-5-enylmethyl)-2-(4-oxo-1H-phthalazin-1-yl)acetamide	分子量：309.4 密度：N/A 沸点：N/A 熔点：N/A	1310939-46-8	C₁₈H₁₉N₃O₂
N-(2-bicyclo[2.2.1]hept-5-enylmethyl)-3-[(3-chlorophenyl)methoxy]-4-oxo-3H-pyridine-6-carboxamide	N-(2-bicyclo[2.2.1]hept-5-enylmethyl)-3-[(3-chlorophenyl)methoxy]-4-oxo-3H-pyridine-6-carboxamide	分子量：384.9 密度：N/A 沸点：N/A 熔点：N/A	1310934-03-2	C₂₁H₂₁ClN₂O₃
1-Naphthalenesulfonamide, N-[3-cyclopropyl-5-(1,1-dimethylethyl)-4-methyl-2(3H)-thiazolylidene]-	1-Naphthalenesulfonamide, N-[3-cyclopropyl-5-(1,1-dimethylethyl)-4-methyl-2(3H)-thiazolylidene]-	分子量：400.6 密度：N/A 沸点：N/A 熔点：N/A	1273182-72-1	C₂₁H₂₄N₂O₂S₂
4,4-difluoro-N-methylcyclohexane-1-carboxamide	4,4-difluoro-N-methylcyclohexane-1-carboxamide	分子量：177.19 密度：N/A 沸点：N/A 熔点：N/A	1203954-86-2	C₈H₁₃F₂NO
5-methoxy-4-oxo-N-pyridin-3-ylpiperidine-2-carboxamide	5-methoxy-4-oxo-N-pyridin-3-ylpiperidine-2-carboxamide	分子量：249.27 密度：N/A 沸点：N/A 熔点：N/A	1282101-30-7	C₁₂H₁₅N₃O₃
N-[5-(2-methylpropyl)-1,3,4-thiadiazol-2-yl]-4-oxo-5-phenylmethoxypiperidine-2-carboxamide	N-[5-(2-methylpropyl)-1,3,4-thiadiazol-2-yl]-4-oxo-5-phenylmethoxypiperidine-2-carboxamide	分子量：388.5 密度：N/A 沸点：N/A 熔点：N/A	1282127-01-8	C₁₉H₂₄N₄O₃S
N-(5-cyclobutyl-1,3,4-thiadiazol-2-yl)-2-[(6-methyl-4-oxo-4aH-thieno[2,3-d]pyrimidin-2-yl)methylsulfanyl]acetamide	N-(5-cyclobutyl-1,3,4-thiadiazol-2-yl)-2-[(6-methyl-4-oxo-4aH-thieno[2,3-d]pyrimidin-2-yl)methylsulfanyl]acetamide	分子量：407.5 密度：N/A 沸点：N/A 熔点：N/A	1282111-55-0	C₁₆H₁₇N₅O₂S₃
1-Bromo-4-[2-(trifluoromethyl)cyclopropyl]benzene	1-Bromo-4-[2-(trifluoromethyl)cyclopropyl]benzene	分子量：265.07 密度：N/A 沸点：N/A 熔点：N/A	1824378-54-2	C₁₀H₈BrF₃
2-(2-ethylsulfonylethyl)piperidine	2-(2-ethylsulfonylethyl)piperidine	分子量：205.32 密度：N/A 沸点：N/A 熔点：N/A	857381-77-2	C₉H₁₉NO₂S
N-(3,5-dimethylphenyl)-2-(8-methoxy-6-methyl-10-oxo-1,3,4,4a,5,5a,6,7,8,9,9a,10a-dodecahydrobenzo[b][1,6]naphthyridin-2-yl)acetamide	N-(3,5-dimethylphenyl)-2-(8-methoxy-6-methyl-10-oxo-1,3,4,4a,5,5a,6,7,8,9,9a,10a-dodecahydrobenzo[b][1,6]naphthyridin-2-yl)acetamide	分子量：413.6 密度：N/A 沸点：N/A 熔点：N/A	1326886-43-4	C₂₄H₃₅N₃O₃
N-(3-chloro-2-methylphenyl)-2-(8-methoxy-6-methyl-10-oxo-1,3,4,4a,5,5a,6,7,8,9,9a,10a-dodecahydrobenzo[b][1,6]naphthyridin-2-yl)acetamide	N-(3-chloro-2-methylphenyl)-2-(8-methoxy-6-methyl-10-oxo-1,3,4,4a,5,5a,6,7,8,9,9a,10a-dodecahydrobenzo[b][1,6]naphthyridin-2-yl)acetamide	分子量：434.0 密度：N/A 沸点：N/A 熔点：N/A	1326837-58-4	C₂₃H₃₂ClN₃O₃
N-(4-chloro-3-fluorophenyl)-2-(8-methoxy-6-methyl-10-oxo-1,3,4,4a,5,5a,6,7,8,9,9a,10a-dodecahydrobenzo[b][1,6]naphthyridin-2-yl)acetamide	N-(4-chloro-3-fluorophenyl)-2-(8-methoxy-6-methyl-10-oxo-1,3,4,4a,5,5a,6,7,8,9,9a,10a-dodecahydrobenzo[b][1,6]naphthyridin-2-yl)acetamide	分子量：437.9 密度：N/A 沸点：N/A 熔点：N/A	1326872-78-9	C₂₂H₂₉ClFN₃O₃
1-{2-Chloro-4-[(prop-2-yn-1-yl)amino]phenyl}ethan-1-one	1-{2-Chloro-4-[(prop-2-yn-1-yl)amino]phenyl}ethan-1-one	分子量：207.65 密度：N/A 沸点：N/A 熔点：N/A	1797626-14-2	C₁₁H₁₀ClNO
1-Ethyl-N-(hex-5-en-2-yl)-1H-pyrazol-4-amine	1-Ethyl-N-(hex-5-en-2-yl)-1H-pyrazol-4-amine	分子量：193.29 密度：N/A 沸点：N/A 熔点：N/A	1564826-06-7	C₁₁H₁₉N₃
N-(3-cyanophenyl)-2-(8-methoxy-6-methyl-10-oxo-1,3,4,4a,5,5a,6,7,8,9,9a,10a-dodecahydrobenzo[b][1,6]naphthyridin-2-yl)acetamide	N-(3-cyanophenyl)-2-(8-methoxy-6-methyl-10-oxo-1,3,4,4a,5,5a,6,7,8,9,9a,10a-dodecahydrobenzo[b][1,6]naphthyridin-2-yl)acetamide	分子量：410.5 密度：N/A 沸点：N/A 熔点：N/A	1326902-85-5	C₂₃H₃₀N₄O₃
methyl 2-[2-(2-piperidyl)ethylsulfonyl]acetate	methyl 2-[2-(2-piperidyl)ethylsulfonyl]acetate	分子量：249.33 密度：N/A 沸点：N/A 熔点：N/A	1266828-25-4	C₁₀H₁₉NO₄S
2-[(Hex-5-en-2-yl)amino]-N,N-dimethylacetamide	2-[(Hex-5-en-2-yl)amino]-N,N-dimethylacetamide	分子量：184.28 密度：N/A 沸点：N/A 熔点：N/A	1565338-88-6	C₁₀H₂₀N₂O
N-(4-fluoro-3-methylphenyl)-2-(8-methoxy-6-methyl-10-oxo-1,3,4,4a,5,5a,6,7,8,9,9a,10a-dodecahydrobenzo[b][1,6]naphthyridin-2-yl)acetamide	N-(4-fluoro-3-methylphenyl)-2-(8-methoxy-6-methyl-10-oxo-1,3,4,4a,5,5a,6,7,8,9,9a,10a-dodecahydrobenzo[b][1,6]naphthyridin-2-yl)acetamide	分子量：417.5 密度：N/A 沸点：N/A 熔点：N/A	1326886-48-9	C₂₃H₃₂FN₃O₃
(1-Amino-3-ethoxy-2,2-dimethylcyclobutyl)methanol	(1-Amino-3-ethoxy-2,2-dimethylcyclobutyl)methanol	分子量：173.25 密度：N/A 沸点：N/A 熔点：N/A	1602002-16-3	C₉H₁₉NO₂
N-cyclohexyl-2-[2-(naphthalen-1-yl)-4-oxo-4H,5H-pyrazolo[1,5-d][1,2,4]triazin-5-yl]acetamide	N-cyclohexyl-2-[2-(naphthalen-1-yl)-4-oxo-4H,5H-pyrazolo[1,5-d][1,2,4]triazin-5-yl]acetamide	分子量：405.5 密度：N/A 沸点：N/A 熔点：N/A	1326861-53-3	C₂₃H₂₇N₅O₂
Spiro[3.4]octan-1-amine	Spiro[3.4]octan-1-amine	分子量：125.21 密度：N/A 沸点：N/A 熔点：N/A	1379148-40-9	C₈H₁₅N
N,N-diethyl-2-[2-(naphthalen-1-yl)-4-oxo-4H,5H-pyrazolo[1,5-d][1,2,4]triazin-5-yl]acetamide	N,N-diethyl-2-[2-(naphthalen-1-yl)-4-oxo-4H,5H-pyrazolo[1,5-d][1,2,4]triazin-5-yl]acetamide	分子量：379.5 密度：N/A 沸点：N/A 熔点：N/A	1326828-93-6	C₂₁H₂₅N₅O₂
(3-(furan-2-yl)-1H-pyrazol-4-yl)methanamine	(3-(furan-2-yl)-1H-pyrazol-4-yl)methanamine	分子量：163.18 密度：N/A 沸点：N/A 熔点：N/A	1520528-23-7	C₈H₉N₃O
N-(3-methoxyphenyl)-2-[2-(naphthalen-1-yl)-4-oxo-4H,5H-pyrazolo[1,5-d][1,2,4]triazin-5-yl]acetamide	N-(3-methoxyphenyl)-2-[2-(naphthalen-1-yl)-4-oxo-4H,5H-pyrazolo[1,5-d][1,2,4]triazin-5-yl]acetamide	分子量：429.5 密度：N/A 沸点：N/A 熔点：N/A	1326909-58-3	C₂₄H₂₃N₅O₃
N-cyclopentyl-2-[2-(naphthalen-1-yl)-4-oxo-4H,5H-pyrazolo[1,5-d][1,2,4]triazin-5-yl]acetamide	N-cyclopentyl-2-[2-(naphthalen-1-yl)-4-oxo-4H,5H-pyrazolo[1,5-d][1,2,4]triazin-5-yl]acetamide	分子量：391.5 密度：N/A 沸点：N/A 熔点：N/A	1326843-79-1	C₂₂H₂₅N₅O₂
N-(2-ethylphenyl)-2-[2-(naphthalen-1-yl)-4-oxo-4H,5H-pyrazolo[1,5-d][1,2,4]triazin-5-yl]acetamide	N-(2-ethylphenyl)-2-[2-(naphthalen-1-yl)-4-oxo-4H,5H-pyrazolo[1,5-d][1,2,4]triazin-5-yl]acetamide	分子量：427.5 密度：N/A 沸点：N/A 熔点：N/A	1326829-06-4	C₂₅H₂₅N₅O₂