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-(1-(2,3-dihydrobenzofuran-5-yl)propan-2-yl)-4-(1H-pyrazol-1-yl)benzenesulfonamide	N-(1-(2,3-dihydrobenzofuran-5-yl)propan-2-yl)-4-(1H-pyrazol-1-yl)benzenesulfonamide	分子量：383.5 密度：N/A 沸点：N/A 熔点：N/A	2034541-76-7	C₂₀H₂₁N₃O₃S
2-(4-(N-(1-(2,3-dihydrobenzofuran-5-yl)propan-2-yl)sulfamoyl)phenoxy)acetamide	2-(4-(N-(1-(2,3-dihydrobenzofuran-5-yl)propan-2-yl)sulfamoyl)phenoxy)acetamide	分子量：390.5 密度：N/A 沸点：N/A 熔点：N/A	2034574-58-6	C₁₉H₂₂N₂O₅S
N-(1-(2,3-dihydrobenzofuran-5-yl)propan-2-yl)-4-(2-methyloxazol-4-yl)benzenesulfonamide	N-(1-(2,3-dihydrobenzofuran-5-yl)propan-2-yl)-4-(2-methyloxazol-4-yl)benzenesulfonamide	分子量：398.5 密度：N/A 沸点：N/A 熔点：N/A	2034450-92-3	C₂₁H₂₂N₂O₄S
N-(1-(2,3-dihydrobenzofuran-5-yl)propan-2-yl)-4-(2,5-dioxopyrrolidin-1-yl)benzenesulfonamide	N-(1-(2,3-dihydrobenzofuran-5-yl)propan-2-yl)-4-(2,5-dioxopyrrolidin-1-yl)benzenesulfonamide	分子量：414.5 密度：N/A 沸点：N/A 熔点：N/A	2034599-23-8	C₂₁H₂₂N₂O₅S
1-(Tert-butyl)-3-(1-(2,3-dihydrobenzofuran-5-yl)propan-2-yl)urea	1-(Tert-butyl)-3-(1-(2,3-dihydrobenzofuran-5-yl)propan-2-yl)urea	分子量：276.37 密度：N/A 沸点：N/A 熔点：N/A	2034516-16-8	C₁₆H₂₄N₂O₂
1-(1-(2,3-Dihydrobenzofuran-5-yl)propan-2-yl)-3-(o-tolyl)urea	1-(1-(2,3-Dihydrobenzofuran-5-yl)propan-2-yl)-3-(o-tolyl)urea	分子量：310.4 密度：N/A 沸点：N/A 熔点：N/A	2034574-59-7	C₁₉H₂₂N₂O₂
1-(1-(2,3-Dihydrobenzofuran-5-yl)propan-2-yl)-3-(thiophen-2-ylmethyl)urea	1-(1-(2,3-Dihydrobenzofuran-5-yl)propan-2-yl)-3-(thiophen-2-ylmethyl)urea	分子量：316.4 密度：N/A 沸点：N/A 熔点：N/A	2034350-68-8	C₁₇H₂₀N₂O₂S
1-(1-(2,3-Dihydrobenzofuran-5-yl)propan-2-yl)-3-(3,4-dimethylphenyl)urea	1-(1-(2,3-Dihydrobenzofuran-5-yl)propan-2-yl)-3-(3,4-dimethylphenyl)urea	分子量：324.4 密度：N/A 沸点：N/A 熔点：N/A	2034451-00-6	C₂₀H₂₄N₂O₂
1-(1-(2,3-Dihydrobenzofuran-5-yl)propan-2-yl)-3-(4-methoxybenzyl)urea	1-(1-(2,3-Dihydrobenzofuran-5-yl)propan-2-yl)-3-(4-methoxybenzyl)urea	分子量：340.4 密度：N/A 沸点：N/A 熔点：N/A	2034574-65-5	C₂₀H₂₄N₂O₃
1-(1-(2,3-Dihydrobenzofuran-5-yl)propan-2-yl)-3-(2,3-dimethoxyphenyl)urea	1-(1-(2,3-Dihydrobenzofuran-5-yl)propan-2-yl)-3-(2,3-dimethoxyphenyl)urea	分子量：356.4 密度：N/A 沸点：N/A 熔点：N/A	2034350-75-7	C₂₀H₂₄N₂O₄
1-(5-Chloro-2-methoxyphenyl)-3-(1-(2,3-dihydrobenzofuran-5-yl)propan-2-yl)urea	1-(5-Chloro-2-methoxyphenyl)-3-(1-(2,3-dihydrobenzofuran-5-yl)propan-2-yl)urea	分子量：360.8 密度：N/A 沸点：N/A 熔点：N/A	2034451-06-2	C₁₉H₂₁ClN₂O₃
5-chloro-2-methoxy-N-(2-((3-(pyrazin-2-yl)-1,2,4-oxadiazol-5-yl)methyl)phenyl)benzamide	5-chloro-2-methoxy-N-(2-((3-(pyrazin-2-yl)-1,2,4-oxadiazol-5-yl)methyl)phenyl)benzamide	分子量：421.8 密度：N/A 沸点：N/A 熔点：N/A	2034512-63-3	C₂₁H₁₆ClN₅O₃
N-[3-(3-chlorophenyl)-3-hydroxypropyl]cyclopentanecarboxamide	N-[3-(3-chlorophenyl)-3-hydroxypropyl]cyclopentanecarboxamide	分子量：281.78 密度：N/A 沸点：N/A 熔点：N/A	2034520-79-9	C₁₅H₂₀ClNO₂
N-(3-(3-chlorophenyl)-3-hydroxypropyl)-5-(furan-2-yl)isoxazole-3-carboxamide	N-(3-(3-chlorophenyl)-3-hydroxypropyl)-5-(furan-2-yl)isoxazole-3-carboxamide	分子量：346.8 密度：N/A 沸点：N/A 熔点：N/A	2034515-97-2	C₁₇H₁₅ClN₂O₄
(2-Ethoxyphenyl)(3-(methylthio)pyrrolidin-1-yl)methanone	(2-Ethoxyphenyl)(3-(methylthio)pyrrolidin-1-yl)methanone	分子量：265.37 密度：N/A 沸点：N/A 熔点：N/A	2034539-97-2	C₁₄H₁₉NO₂S
1-(3-((Furan-2-ylmethyl)sulfonyl)pyrrolidin-1-yl)-3-(4-(methylthio)phenyl)propan-1-one	1-(3-((Furan-2-ylmethyl)sulfonyl)pyrrolidin-1-yl)-3-(4-(methylthio)phenyl)propan-1-one	分子量：393.5 密度：N/A 沸点：N/A 熔点：N/A	2034421-84-4	C₁₉H₂₃NO₄S₂
6-Methoxy-2H-spiro[benzofuran-3,4'-piperidine]	6-Methoxy-2H-spiro[benzofuran-3,4'-piperidine]	分子量：219.28 密度：N/A 沸点：N/A 熔点：N/A	1822826-63-0	C₁₃H₁₇NO₂
6-bromo-5-chloro-N-[(3,4-difluorophenyl)methyl]pyridin-2-amine	6-bromo-5-chloro-N-[(3,4-difluorophenyl)methyl]pyridin-2-amine	分子量：333.56 密度：N/A 沸点：N/A 熔点：N/A	1628481-65-1	C₁₂H₈BrClF₂N₂
N-([2,3'-bipyridin]-3-ylmethyl)-1-(benzo[d]oxazol-2-yl)pyrrolidine-2-carboxamide	N-([2,3'-bipyridin]-3-ylmethyl)-1-(benzo[d]oxazol-2-yl)pyrrolidine-2-carboxamide	分子量：399.4 密度：N/A 沸点：N/A 熔点：N/A	1902899-22-2	C₂₃H₂₁N₅O₂
N-((2-(thiophen-2-yl)pyridin-4-yl)methyl)-1H-benzo[d]imidazole-5-carboxamide	N-((2-(thiophen-2-yl)pyridin-4-yl)methyl)-1H-benzo[d]imidazole-5-carboxamide	分子量：334.4 密度：N/A 沸点：N/A 熔点：N/A	1903747-51-2	C₁₈H₁₄N₄OS
1,5-Isoquinolinediamine, 4-bromo-N1,N1,8-trimethyl-	1,5-Isoquinolinediamine, 4-bromo-N1,N1,8-trimethyl-	分子量：280.16 密度：N/A 沸点：N/A 熔点：N/A	1823245-65-3	C₁₂H₁₄BrN₃
2-(benzo[d]thiazol-2-ylthio)-N-((2-(thiophen-2-yl)pyridin-4-yl)methyl)acetamide	2-(benzo[d]thiazol-2-ylthio)-N-((2-(thiophen-2-yl)pyridin-4-yl)methyl)acetamide	分子量：397.5 密度：N/A 沸点：N/A 熔点：N/A	1903080-12-5	C₁₉H₁₅N₃OS₃
1-(4-Chlorobenzyl)-3-((2-(thiophen-2-yl)pyridin-4-yl)methyl)urea	1-(4-Chlorobenzyl)-3-((2-(thiophen-2-yl)pyridin-4-yl)methyl)urea	分子量：357.9 密度：N/A 沸点：N/A 熔点：N/A	1903405-06-0	C₁₈H₁₆ClN₃OS
1-(2-Chlorophenyl)-3-((2-(thiophen-2-yl)pyridin-4-yl)methyl)urea	1-(2-Chlorophenyl)-3-((2-(thiophen-2-yl)pyridin-4-yl)methyl)urea	分子量：343.8 密度：N/A 沸点：N/A 熔点：N/A	1904296-39-4	C₁₇H₁₄ClN₃OS
3,5-difluoro-N-((2-(thiophen-2-yl)pyridin-4-yl)methyl)benzenesulfonamide	3,5-difluoro-N-((2-(thiophen-2-yl)pyridin-4-yl)methyl)benzenesulfonamide	分子量：366.4 密度：N/A 沸点：N/A 熔点：N/A	1904182-48-4	C₁₆H₁₂F₂N₂O₂S₂
1-(3,4-dimethylphenyl)-3-(2-(4-methoxy-6-methyl-2-oxopyridin-1(2H)-yl)ethyl)urea	1-(3,4-dimethylphenyl)-3-(2-(4-methoxy-6-methyl-2-oxopyridin-1(2H)-yl)ethyl)urea	分子量：329.4 密度：N/A 沸点：N/A 熔点：N/A	1903069-15-7	C₁₈H₂₃N₃O₃
(R)-2,2-Dimethyl-1-(pyridin-3-yl)propan-1-amine	(R)-2,2-Dimethyl-1-(pyridin-3-yl)propan-1-amine	分子量：164.25 密度：N/A 沸点：N/A 熔点：N/A	207850-85-9	C₁₀H₁₆N₂
N-(2-(4-methoxy-6-methyl-2-oxopyridin-1(2H)-yl)ethyl)-4-(trifluoromethoxy)benzenesulfonamide	N-(2-(4-methoxy-6-methyl-2-oxopyridin-1(2H)-yl)ethyl)-4-(trifluoromethoxy)benzenesulfonamide	分子量：406.4 密度：N/A 沸点：N/A 熔点：N/A	1903360-89-3	C₁₆H₁₇F₃N₂O₅S
N-Cyclobutyl-2-azabicyclo[2.1.1]hexane-1-carboxamide	N-Cyclobutyl-2-azabicyclo[2.1.1]hexane-1-carboxamide	分子量：180.25 密度：N/A 沸点：N/A 熔点：N/A	1422133-12-7	C₁₀H₁₆N₂O
4-Bromo-6-fluorobenzo[d]thiazole	4-Bromo-6-fluorobenzo[d]thiazole	分子量：232.07 密度：N/A 沸点：N/A 熔点：N/A	1628456-08-5	C₇H₃BrFNS
3-(3-(4-fluorophenoxy)phenyl)-N-(pyridin-3-yl(tetrahydro-2H-pyran-4-yl)methyl)propanamide	3-(3-(4-fluorophenoxy)phenyl)-N-(pyridin-3-yl(tetrahydro-2H-pyran-4-yl)methyl)propanamide	分子量：434.5 密度：N/A 沸点：N/A 熔点：N/A	1904203-46-8	C₂₆H₂₇FN₂O₃
3-(benzyloxy)-N-(pyridin-3-yl(tetrahydro-2H-pyran-4-yl)methyl)benzamide	3-(benzyloxy)-N-(pyridin-3-yl(tetrahydro-2H-pyran-4-yl)methyl)benzamide	分子量：402.5 密度：N/A 沸点：N/A 熔点：N/A	1903055-12-8	C₂₅H₂₆N₂O₃
R-methyl 3-chloro-2-hydroxypropanoate	R-methyl 3-chloro-2-hydroxypropanoate	分子量：138.55 密度：N/A 沸点：N/A 熔点：N/A	82971-67-3	C₄H₇ClO₃
1-chloro-3-methoxy-2-[(E)-2-nitroethenyl]benzene	1-chloro-3-methoxy-2-[(E)-2-nitroethenyl]benzene	分子量：213.62 密度：N/A 沸点：N/A 熔点：N/A	60610-72-2	C₉H₈ClNO₃
N-((6,7,8,9-Tetrahydro-5H-[1,2,4]Triazolo[4,3-A][1,4]Diazepin-3-Yl)Methyl)Isobutyramide	N-((6,7,8,9-Tetrahydro-5H-[1,2,4]Triazolo[4,3-A][1,4]Diazepin-3-Yl)Methyl)Isobutyramide	分子量：237.30 密度：N/A 沸点：N/A 熔点：N/A	1422068-58-3	C₁₁H₁₉N₅O
1-[5-(Trifluoromethyl)pyrazol-1-YL]propan-2-OL	1-[5-(Trifluoromethyl)pyrazol-1-YL]propan-2-OL	分子量：194.15 密度：N/A 沸点：N/A 熔点：N/A	1820707-72-9	C₇H₉F₃N₂O
N-((2-(furan-2-yl)pyridin-3-yl)methyl)-4-(4-methoxypiperidin-1-yl)benzamide	N-((2-(furan-2-yl)pyridin-3-yl)methyl)-4-(4-methoxypiperidin-1-yl)benzamide	分子量：391.5 密度：N/A 沸点：N/A 熔点：N/A	2034268-77-2	C₂₃H₂₅N₃O₃
N-(3-(isoxazol-4-yl)propyl)-1H-indole-5-carboxamide	N-(3-(isoxazol-4-yl)propyl)-1H-indole-5-carboxamide	分子量：269.30 密度：N/A 沸点：N/A 熔点：N/A	1904194-76-8	C₁₅H₁₅N₃O₂
(3-(2H-1,2,3-triazol-2-yl)pyrrolidin-1-yl)(9H-xanthen-9-yl)methanone	(3-(2H-1,2,3-triazol-2-yl)pyrrolidin-1-yl)(9H-xanthen-9-yl)methanone	分子量：346.4 密度：N/A 沸点：N/A 熔点：N/A	2034249-96-0	C₂₀H₁₈N₄O₂
methyl 3-((3-(2H-1,2,3-triazol-2-yl)pyrrolidin-1-yl)sulfonyl)thiophene-2-carboxylate	methyl 3-((3-(2H-1,2,3-triazol-2-yl)pyrrolidin-1-yl)sulfonyl)thiophene-2-carboxylate	分子量：342.4 密度：N/A 沸点：N/A 熔点：N/A	2034347-32-3	C₁₂H₁₄N₄O₄S₂
Methyl 4-(N-propylmethanesulfonamido)benzoate	Methyl 4-(N-propylmethanesulfonamido)benzoate	分子量：271.33 密度：N/A 沸点：N/A 熔点：N/A	163430-69-1	C₁₂H₁₇NO₄S
3-bromo-2-[(3R)-pyrrolidin-3-yloxy]pyridine	3-bromo-2-[(3R)-pyrrolidin-3-yloxy]pyridine	分子量：243.10 密度：N/A 沸点：N/A 熔点：N/A	2290769-27-4	C₉H₁₁BrN₂O
4-Methylumbelliferyl alpha-d-xylopyranoside	4-Methylumbelliferyl alpha-d-xylopyranoside	分子量：308.28 密度：N/A 沸点：N/A 熔点：N/A	1643953-00-7	C₁₅H₁₆O₇
CN(C(=O)C1Ccn(CC1)C1ccncc1)C	CN(C(=O)C1Ccn(CC1)C1ccncc1)C	分子量：239.36 密度：N/A 沸点：N/A 熔点：N/A	1422061-89-9	C₁₃H₂₅N₃O
5-Bromo-8-methoxyisoquinoline-1-carboxylic acid	5-Bromo-8-methoxyisoquinoline-1-carboxylic acid	分子量：282.09 密度：N/A 沸点：N/A 熔点：N/A	1823237-12-2	C₁₁H₈BrNO₃
5-Bromo-8-chloroisoquinoline-1-carboxylic acid	5-Bromo-8-chloroisoquinoline-1-carboxylic acid	分子量：286.51 密度：N/A 沸点：N/A 熔点：N/A	1368030-79-8	C₁₀H₅BrClNO₂
5-Bromo-7-chloroisoquinoline-1-carboxylic acid	5-Bromo-7-chloroisoquinoline-1-carboxylic acid	分子量：286.51 密度：N/A 沸点：N/A 熔点：N/A	1824322-07-7	C₁₀H₅BrClNO₂
Methyl5-bromo-8-fluoroisoquinoline-1-carboxylate	Methyl5-bromo-8-fluoroisoquinoline-1-carboxylate	分子量：284.08 密度：N/A 沸点：N/A 熔点：N/A	1368065-52-4	C₁₁H₇BrFNO₂
3,5-Dichloro-4-(2,6-dimethylmorpholino)aniline	3,5-Dichloro-4-(2,6-dimethylmorpholino)aniline	分子量：275.17 密度：N/A 沸点：N/A 熔点：N/A	1708199-24-9	C₁₂H₁₆Cl₂N₂O
1,3-Dibromo-4-fluoro-2-methyl-5-nitrobenzene	1,3-Dibromo-4-fluoro-2-methyl-5-nitrobenzene	分子量：312.92 密度：N/A 沸点：N/A 熔点：N/A	1820613-94-2	C₇H₄Br₂FNO₂