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-methyl-N-[4-({[4-(piperidine-1-carbonyl)-1,2,5-oxadiazol-3-yl]carbamoyl}methyl)-1,3-thiazol-2-yl]furan-3-carboxamide	2-methyl-N-[4-({[4-(piperidine-1-carbonyl)-1,2,5-oxadiazol-3-yl]carbamoyl}methyl)-1,3-thiazol-2-yl]furan-3-carboxamide	分子量：444.5 密度：N/A 沸点：N/A 熔点：N/A	1394690-51-7	C₁₉H₂₀N₆O₅S
Trimethyl-1h-pyrazol-4-yl 2-chloropyridine-4-carboxylate	Trimethyl-1h-pyrazol-4-yl 2-chloropyridine-4-carboxylate	分子量：265.69 密度：N/A 沸点：N/A 熔点：N/A	1423739-40-5	C₁₂H₁₂ClN₃O₂
8-[[4-(4-Methoxyphenyl)piperazin-1-yl]methyl]-3-methyl-7-[(3-methylphenyl)methyl]-4,5-dihydropurine-2,6-dione	8-[[4-(4-Methoxyphenyl)piperazin-1-yl]methyl]-3-methyl-7-[(3-methylphenyl)methyl]-4,5-dihydropurine-2,6-dione	分子量：476.6 密度：N/A 沸点：N/A 熔点：N/A	862979-50-8	C₂₆H₃₂N₆O₃
8-[[4-(3-Chlorophenyl)piperazin-1-yl]methyl]-3-methyl-7-[(2-methylphenyl)methyl]-4,5-dihydropurine-2,6-dione	8-[[4-(3-Chlorophenyl)piperazin-1-yl]methyl]-3-methyl-7-[(2-methylphenyl)methyl]-4,5-dihydropurine-2,6-dione	分子量：481.0 密度：N/A 沸点：N/A 熔点：N/A	847408-03-1	C₂₅H₂₉ClN₆O₂
7-[(4-Fluorophenyl)methyl]-8-[[4-(4-methoxyphenyl)piperazin-1-yl]methyl]-3-methyl-4,5-dihydropurine-2,6-dione	7-[(4-Fluorophenyl)methyl]-8-[[4-(4-methoxyphenyl)piperazin-1-yl]methyl]-3-methyl-4,5-dihydropurine-2,6-dione	分子量：480.5 密度：N/A 沸点：N/A 熔点：N/A	847408-24-6	C₂₅H₂₉FN₆O₃
7-[(4-Chlorophenyl)methyl]-8-[[4-(4-fluorophenyl)piperazin-1-yl]methyl]-3-methyl-4,5-dihydropurine-2,6-dione	7-[(4-Chlorophenyl)methyl]-8-[[4-(4-fluorophenyl)piperazin-1-yl]methyl]-3-methyl-4,5-dihydropurine-2,6-dione	分子量：485.0 密度：N/A 沸点：N/A 熔点：N/A	862979-65-5	C₂₄H₂₆ClFN₆O₂
8-[(Dibenzylamino)methyl]-3-methyl-7-(3-oxobutan-2-yl)-4,5-dihydropurine-2,6-dione	8-[(Dibenzylamino)methyl]-3-methyl-7-(3-oxobutan-2-yl)-4,5-dihydropurine-2,6-dione	分子量：447.5 密度：N/A 沸点：N/A 熔点：N/A	862979-95-1	C₂₅H₂₉N₅O₃
(1-Benzyl-3-methylazetidin-3-yl)methanamine dihydrochloride	(1-Benzyl-3-methylazetidin-3-yl)methanamine dihydrochloride	分子量：263.20 密度：N/A 沸点：N/A 熔点：N/A	1803582-22-0	C₁₂H₂₀Cl₂N₂
7-[3-(1,3-benzothiazol-2-ylsulfanyl)propyl]-3-methyl-8-(3-methylpiperidin-1-yl)-2,3,6,7-tetrahydro-1H-purine-2,6-dione	7-[3-(1,3-benzothiazol-2-ylsulfanyl)propyl]-3-methyl-8-(3-methylpiperidin-1-yl)-2,3,6,7-tetrahydro-1H-purine-2,6-dione	分子量：472.6 密度：N/A 沸点：N/A 熔点：N/A	674350-46-0	C₂₂H₂₈N₆O₂S₂
3-(4-bromo-2-fluorophenoxy)-N-(1-cyanocyclopropyl)propanamide	3-(4-bromo-2-fluorophenoxy)-N-(1-cyanocyclopropyl)propanamide	分子量：327.15 密度：N/A 沸点：N/A 熔点：N/A	1394781-92-0	C₁₃H₁₂BrFN₂O₂
(1-Benzyl-3-methyl-azetidin-3-yl)methanamine	(1-Benzyl-3-methyl-azetidin-3-yl)methanamine	分子量：190.28 密度：N/A 沸点：N/A 熔点：N/A	1804129-04-1	C₁₂H₁₈N₂
8-Bromo-7-chloro-2-(4-methoxyphenyl)-[1,2,4]triazolo[1,5-C]pyrimidine	8-Bromo-7-chloro-2-(4-methoxyphenyl)-[1,2,4]triazolo[1,5-C]pyrimidine	分子量：339.57 密度：N/A 沸点：N/A 熔点：N/A	1254710-27-4	C₁₂H₈BrClN₄O
N-(1-cyano-1-methylethyl)-4-[(N,2-dimethylpropanamido)methyl]benzamide	N-(1-cyano-1-methylethyl)-4-[(N,2-dimethylpropanamido)methyl]benzamide	分子量：301.4 密度：N/A 沸点：N/A 熔点：N/A	1394718-84-3	C₁₇H₂₃N₃O₂
(R)-3-(2,3-Difluorophenyl)pyrrolidine	(R)-3-(2,3-Difluorophenyl)pyrrolidine	分子量：183.20 密度：N/A 沸点：N/A 熔点：N/A	1260619-66-6	C₁₀H₁₁F₂N
1-Benzyl-4,4-dimethylpiperidin-3-amine dihydrochloride	1-Benzyl-4,4-dimethylpiperidin-3-amine dihydrochloride	分子量：291.3 密度：N/A 沸点：N/A 熔点：N/A	1363404-70-9	C₁₄H₂₄Cl₂N₂
Ethyl 8-fluoroisoquinoline-3-carboxylate	Ethyl 8-fluoroisoquinoline-3-carboxylate	分子量：219.21 密度：N/A 沸点：N/A 熔点：N/A	1822846-17-2	C₁₂H₁₀FNO₂
Ethyl 3-(3-fluoro-4-methoxyphenyl)-2-methylprop-2-enoate	Ethyl 3-(3-fluoro-4-methoxyphenyl)-2-methylprop-2-enoate	分子量：238.25 密度：N/A 沸点：N/A 熔点：N/A	125036-90-0	C₁₃H₁₅FO₃
5-(difluoromethyl)-1-phenyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid	5-(difluoromethyl)-1-phenyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid	分子量：306.19 密度：N/A 沸点：N/A 熔点：N/A	1394647-33-6	C₁₂H₇F₅N₂O₂
5-(difluoromethyl)-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid	5-(difluoromethyl)-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid	分子量：244.12 密度：N/A 沸点：N/A 熔点：N/A	1394650-76-0	C₇H₅F₅N₂O₂
1-(2-hydroxyethyl)-3,5-bis(trifluoromethyl)-1H-pyrazole-4-carboxylic acid	1-(2-hydroxyethyl)-3,5-bis(trifluoromethyl)-1H-pyrazole-4-carboxylic acid	分子量：292.13 密度：N/A 沸点：N/A 熔点：N/A	1394647-20-1	C₈H₆F₆N₂O₃
3-(3-Aminopyridin-2-yl)-4-methyl-5-(trifluoromethyl)-1,3-oxazolidin-2-one	3-(3-Aminopyridin-2-yl)-4-methyl-5-(trifluoromethyl)-1,3-oxazolidin-2-one	分子量：261.20 密度：N/A 沸点：N/A 熔点：N/A	1421603-48-6	C₁₀H₁₀F₃N₃O₂
3-[2-Amino-4-(trifluoromethyl)phenyl]-4-methyl-5-(trifluoromethyl)-1,3-oxazolidin-2-one	3-[2-Amino-4-(trifluoromethyl)phenyl]-4-methyl-5-(trifluoromethyl)-1,3-oxazolidin-2-one	分子量：328.21 密度：N/A 沸点：N/A 熔点：N/A	1394767-33-9	C₁₂H₁₀F₆N₂O₂
5-(Difluoromethyl)-3-(trifluoromethyl)-1,2-oxazole-4-carboxylic acid	5-(Difluoromethyl)-3-(trifluoromethyl)-1,2-oxazole-4-carboxylic acid	分子量：231.08 密度：N/A 沸点：N/A 熔点：N/A	1394690-50-6	C₆H₂F₅NO₃
2,5-dichloro-N-(2-iodophenyl)pyrimidin-4-amine	2,5-dichloro-N-(2-iodophenyl)pyrimidin-4-amine	分子量：365.98 密度：N/A 沸点：N/A 熔点：N/A	1507076-74-5	C₁₀H₆Cl₂IN₃
Diethyl 9-azabicyclo[3.3.1]nonane-3,7-dicarboxylate hydrochloride	Diethyl 9-azabicyclo[3.3.1]nonane-3,7-dicarboxylate hydrochloride	分子量：305.80 密度：N/A 沸点：N/A 熔点：N/A	1544665-62-4	C₁₄H₂₄ClNO₄
2,5-Dioxa-8-aza-spiro[3.5]nonane oxalate	2,5-Dioxa-8-aza-spiro[3.5]nonane oxalate	分子量：219.19 密度：N/A 沸点：N/A 熔点：N/A	1706458-74-3	C₈H₁₃NO₆
Methyl 5-(aminomethyl)tetrahydrofuran-2-carboxylate hydrochloride	Methyl 5-(aminomethyl)tetrahydrofuran-2-carboxylate hydrochloride	分子量：195.64 密度：N/A 沸点：N/A 熔点：N/A	1304126-25-7	C₇H₁₄ClNO₃
I+/--[[2-[2-(4-Methoxyphenoxy)ethoxy]phenyl]methylene]benzeneacetic acid	I+/--[[2-[2-(4-Methoxyphenoxy)ethoxy]phenyl]methylene]benzeneacetic acid	分子量：390.4 密度：N/A 沸点：N/A 熔点：N/A	938251-35-5	C₂₄H₂₂O₅
Methyl 1-(2-amino-4-methylpentanoyl)piperidine-4-carboxylate	Methyl 1-(2-amino-4-methylpentanoyl)piperidine-4-carboxylate	分子量：256.34 密度：N/A 沸点：N/A 熔点：N/A	2984219-76-1	C₁₃H₂₄N₂O₃
2-amino-4-(methylsulfanyl)-N-(pyridin-2-yl)butanamide	2-amino-4-(methylsulfanyl)-N-(pyridin-2-yl)butanamide	分子量：225.31 密度：N/A 沸点：N/A 熔点：N/A	1869584-73-5	C₁₀H₁₅N₃OS
tert-Butyl 4-((tert-butylsulfinyl)imino)piperidine-1-carboxylate	tert-Butyl 4-((tert-butylsulfinyl)imino)piperidine-1-carboxylate	分子量：302.44 密度：N/A 沸点：N/A 熔点：N/A	885500-50-5	C₁₄H₂₆N₂O₃S
4-benzyl-N-(4-cyano-1-methylpiperidin-4-yl)morpholine-2-carboxamide	4-benzyl-N-(4-cyano-1-methylpiperidin-4-yl)morpholine-2-carboxamide	分子量：342.4 密度：N/A 沸点：N/A 熔点：N/A	1394704-37-0	C₁₉H₂₆N₄O₂
Methyl 2-bromoquinoline-6-carboxylate	Methyl 2-bromoquinoline-6-carboxylate	分子量：266.09 密度：N/A 沸点：N/A 熔点：N/A	1823315-29-2	C₁₁H₈BrNO₂
1-((2-Oxo-1,3-dioxolan-4-yl)methyl)cyclopropane-1-sulfonyl chloride	1-((2-Oxo-1,3-dioxolan-4-yl)methyl)cyclopropane-1-sulfonyl chloride	分子量：240.66 密度：N/A 沸点：N/A 熔点：N/A	1822586-59-3	C₇H₉ClO₅S
2-(1-methyl-1H-pyrazol-4-yl)ethyl 2-chloropyridine-3-carboxylate	2-(1-methyl-1H-pyrazol-4-yl)ethyl 2-chloropyridine-3-carboxylate	分子量：265.69 密度：N/A 沸点：N/A 熔点：N/A	1424546-59-7	C₁₂H₁₂ClN₃O₂
Bicyclo[2.2.2]oct-5-ene-2-sulfonyl chloride	Bicyclo[2.2.2]oct-5-ene-2-sulfonyl chloride	分子量：206.69 密度：N/A 沸点：N/A 熔点：N/A	1824186-67-5	C₈H₁₁ClO₂S
2-[(4-Acetylpiperazin-1-yl)methyl]-5-ethyl-7-phenylthieno[3,2-c]pyridin-4-one	2-[(4-Acetylpiperazin-1-yl)methyl]-5-ethyl-7-phenylthieno[3,2-c]pyridin-4-one	分子量：395.5 密度：N/A 沸点：N/A 熔点：N/A	1610519-56-6	C₂₂H₂₅N₃O₂S
Methyl 4-amino-3-(2-pyrrolidin-1-ylethoxy)benzoate	Methyl 4-amino-3-(2-pyrrolidin-1-ylethoxy)benzoate	分子量：264.32 密度：N/A 沸点：N/A 熔点：N/A	1216144-08-9	C₁₄H₂₀N₂O₃
2-(Pyrrolidin-3-ylsulfinyl)quinoxaline hydrochloride	2-(Pyrrolidin-3-ylsulfinyl)quinoxaline hydrochloride	分子量：283.78 密度：N/A 沸点：N/A 熔点：N/A	1420804-84-7	C₁₂H₁₄ClN₃OS
Methyl 2-(4-(2-chloroallyl)morpholin-2-yl)acetate	Methyl 2-(4-(2-chloroallyl)morpholin-2-yl)acetate	分子量：233.69 密度：N/A 沸点：N/A 熔点：N/A	1427683-64-4	C₁₀H₁₆ClNO₃
(5-Methylpyrrolidin-3-yl)methanamine	(5-Methylpyrrolidin-3-yl)methanamine	分子量：114.19 密度：N/A 沸点：N/A 熔点：N/A	1550150-71-4	C₆H₁₄N₂
4-(Methyl(3-(trifluoromethyl)pyridin-2-yl)amino)butan-2-ol	4-(Methyl(3-(trifluoromethyl)pyridin-2-yl)amino)butan-2-ol	分子量：248.24 密度：N/A 沸点：N/A 熔点：N/A	1424400-04-3	C₁₁H₁₅F₃N₂O
2-(Methoxymethyl)-4-(pyridin-2-yl)morpholine	2-(Methoxymethyl)-4-(pyridin-2-yl)morpholine	分子量：208.26 密度：N/A 沸点：N/A 熔点：N/A	1424464-95-8	C₁₁H₁₆N₂O₂
N-((3-methoxypyrazin-2-yl)methyl)piperidin-3-amine hydrochloride	N-((3-methoxypyrazin-2-yl)methyl)piperidin-3-amine hydrochloride	分子量：258.75 密度：N/A 沸点：N/A 熔点：N/A	1420973-78-9	C₁₁H₁₉ClN₄O
Ethyl 5-bromoisoquinoline-3-carboxylate	Ethyl 5-bromoisoquinoline-3-carboxylate	分子量：280.12 密度：N/A 沸点：N/A 熔点：N/A	1823577-57-6	C₁₂H₁₀BrNO₂
Ethyl 5-chloroisoquinoline-3-carboxylate	Ethyl 5-chloroisoquinoline-3-carboxylate	分子量：235.66 密度：N/A 沸点：N/A 熔点：N/A	1823315-19-0	C₁₂H₁₀ClNO₂
(1-(6-Chloro-2-(methylthio)pyrimidin-4-yl)piperidin-4-yl)methanamine	(1-(6-Chloro-2-(methylthio)pyrimidin-4-yl)piperidin-4-yl)methanamine	分子量：272.80 密度：N/A 沸点：N/A 熔点：N/A	1420937-16-1	C₁₁H₁₇ClN₄S
4-[(6-Chloropyridin-3-yl)sulfonyl]-6-fluoro-1-methyl-1,2,3,4-tetrahydroquinoxaline	4-[(6-Chloropyridin-3-yl)sulfonyl]-6-fluoro-1-methyl-1,2,3,4-tetrahydroquinoxaline	分子量：341.8 密度：N/A 沸点：N/A 熔点：N/A	1394689-59-8	C₁₄H₁₃ClFN₃O₂S
N-[(2,3-dihydro-1,4-benzodioxin-6-yl)methyl]-4,6-dimethoxy-N-methyl-1,3,5-triazin-2-amine	N-[(2,3-dihydro-1,4-benzodioxin-6-yl)methyl]-4,6-dimethoxy-N-methyl-1,3,5-triazin-2-amine	分子量：318.33 密度：N/A 沸点：N/A 熔点：N/A	1394783-71-1	C₁₅H₁₈N₄O₄
2,6-Dimethyl-4-(3-methyl-1,2,4-thiadiazol-5-yl)morpholine	2,6-Dimethyl-4-(3-methyl-1,2,4-thiadiazol-5-yl)morpholine	分子量：213.30 密度：N/A 沸点：N/A 熔点：N/A	1427540-13-3	C₉H₁₅N₃OS