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
(E)-but-2-enedioic acid;8-(6-methoxypyridin-3-yl)-3-methyl-1-[4-piperazin-1-yl-3-(trifluoromethyl)phenyl]imidazo[4,5-c]quinolin-2-one	(E)-but-2-enedioic acid;8-(6-methoxypyridin-3-yl)-3-methyl-1-[4-piperazin-1-yl-3-(trifluoromethyl)phenyl]imidazo[4,5-c]quinolin-2-one	分子量：650.6 密度：N/A 沸点：N/A 熔点：N/A	1956426-41-7	C₃₂H₂₉F₃N₆O₆
REC-0559 lysine	REC-0559 lysine	分子量：499.6 密度：N/A 沸点：N/A 熔点：N/A	1458063-51-8	C₂₆H₃₃N₃O₇
4-(Isobutylamino)nicotinic acid	4-(Isobutylamino)nicotinic acid	分子量：194.23 密度：N/A 沸点：N/A 熔点：N/A	1507753-86-7	C₁₀H₁₄N₂O₂
2-bromo-N-((1-(thiophen-3-yl)cyclopentyl)methyl)benzamide	2-bromo-N-((1-(thiophen-3-yl)cyclopentyl)methyl)benzamide	分子量：364.3 密度：N/A 沸点：N/A 熔点：N/A	2034599-93-2	C₁₇H₁₈BrNOS
Bis(2-propoxyethyl) phosphonate	Bis(2-propoxyethyl) phosphonate	分子量：253.25 密度：N/A 沸点：N/A 熔点：N/A	6429-65-8	C₁₀H₂₂O₅P+
Tert-butyl 4-(aminomethyl)-2-phenylpiperidine-1-carboxylate	Tert-butyl 4-(aminomethyl)-2-phenylpiperidine-1-carboxylate	分子量：290.4 密度：N/A 沸点：N/A 熔点：N/A	1779900-68-3	C₁₇H₂₆N₂O₂
Tert-butyl 4-amino-2-(4-methylphenyl)piperidine-1-carboxylate	Tert-butyl 4-amino-2-(4-methylphenyl)piperidine-1-carboxylate	分子量：290.4 密度：N/A 沸点：N/A 熔点：N/A	1784825-33-7	C₁₇H₂₆N₂O₂
Tert-butyl 4-amino-2-(3-methylphenyl)piperidine-1-carboxylate	Tert-butyl 4-amino-2-(3-methylphenyl)piperidine-1-carboxylate	分子量：290.4 密度：N/A 沸点：N/A 熔点：N/A	1780816-06-9	C₁₇H₂₆N₂O₂
tert-butyl N-[2-(2-methylphenyl)piperidin-4-yl]carbamate	tert-butyl N-[2-(2-methylphenyl)piperidin-4-yl]carbamate	分子量：290.4 密度：N/A 沸点：N/A 熔点：N/A	1784825-44-0	C₁₇H₂₆N₂O₂
tert-butyl N-[2-(3-methylphenyl)piperidin-4-yl]carbamate	tert-butyl N-[2-(3-methylphenyl)piperidin-4-yl]carbamate	分子量：290.4 密度：N/A 沸点：N/A 熔点：N/A	1779900-81-0	C₁₇H₂₆N₂O₂
tert-butyl N-[(2-phenylpiperidin-3-yl)methyl]carbamate	tert-butyl N-[(2-phenylpiperidin-3-yl)methyl]carbamate	分子量：290.4 密度：N/A 沸点：N/A 熔点：N/A	1779901-06-2	C₁₇H₂₆N₂O₂
tert-butyl N-{3-[(piperidin-3-yl)methyl]phenyl}carbamate	tert-butyl N-{3-[(piperidin-3-yl)methyl]phenyl}carbamate	分子量：290.4 密度：N/A 沸点：N/A 熔点：N/A	1785382-83-3	C₁₇H₂₆N₂O₂
tert-butyl N-{3-[(piperidin-4-yl)methyl]phenyl}carbamate	tert-butyl N-{3-[(piperidin-4-yl)methyl]phenyl}carbamate	分子量：290.4 密度：N/A 沸点：N/A 熔点：N/A	1780421-83-1	C₁₇H₂₆N₂O₂
1-(4-bromophenyl)-4-(trifluoromethyl)-1H-pyrazole	1-(4-bromophenyl)-4-(trifluoromethyl)-1H-pyrazole	分子量：291.07 密度：N/A 沸点：N/A 熔点：N/A	1780422-39-0	C₁₀H₆BrF₃N₂
N1-(5-chloro-2-cyanophenyl)-N2-((1-(thiophen-3-yl)cyclopentyl)methyl)oxalamide	N1-(5-chloro-2-cyanophenyl)-N2-((1-(thiophen-3-yl)cyclopentyl)methyl)oxalamide	分子量：387.9 密度：N/A 沸点：N/A 熔点：N/A	2034452-29-2	C₁₉H₁₈ClN₃O₂S
N1-(2,5-dimethoxyphenyl)-N2-((1-(thiophen-3-yl)cyclopentyl)methyl)oxalamide	N1-(2,5-dimethoxyphenyl)-N2-((1-(thiophen-3-yl)cyclopentyl)methyl)oxalamide	分子量：388.5 密度：N/A 沸点：N/A 熔点：N/A	2034518-70-0	C₂₀H₂₄N₂O₄S
N1-((1-(thiophen-3-yl)cyclopentyl)methyl)-N2-(4-(trifluoromethyl)phenyl)oxalamide	N1-((1-(thiophen-3-yl)cyclopentyl)methyl)-N2-(4-(trifluoromethyl)phenyl)oxalamide	分子量：396.4 密度：N/A 沸点：N/A 熔点：N/A	2034517-03-6	C₁₉H₁₉F₃N₂O₂S
N1-(3-(2-oxopyrrolidin-1-yl)phenyl)-N2-((1-(thiophen-3-yl)cyclopentyl)methyl)oxalamide	N1-(3-(2-oxopyrrolidin-1-yl)phenyl)-N2-((1-(thiophen-3-yl)cyclopentyl)methyl)oxalamide	分子量：411.5 密度：N/A 沸点：N/A 熔点：N/A	2034600-68-3	C₂₂H₂₅N₃O₃S
2-(9-methoxy-2,3-dihydrobenzo[f][1,4]oxazepin-4(5H)-yl)ethan-1-amine	2-(9-methoxy-2,3-dihydrobenzo[f][1,4]oxazepin-4(5H)-yl)ethan-1-amine	分子量：222.28 密度：N/A 沸点：N/A 熔点：N/A	1785160-56-6	C₁₂H₁₈N₂O₂
2-[1-(3-{[(Tert-butoxy)carbonyl]amino}phenyl)cyclopropyl]acetic acid	2-[1-(3-{[(Tert-butoxy)carbonyl]amino}phenyl)cyclopropyl]acetic acid	分子量：291.34 密度：N/A 沸点：N/A 熔点：N/A	1782405-20-2	C₁₆H₂₁NO₄
2-[1-(4-{[(Tert-butoxy)carbonyl]amino}phenyl)cyclopropyl]acetic acid	2-[1-(4-{[(Tert-butoxy)carbonyl]amino}phenyl)cyclopropyl]acetic acid	分子量：291.34 密度：N/A 沸点：N/A 熔点：N/A	1783960-76-8	C₁₆H₂₁NO₄
1-(2-Methoxyethyl)-3-((1-(thiophen-3-yl)cyclopentyl)methyl)urea	1-(2-Methoxyethyl)-3-((1-(thiophen-3-yl)cyclopentyl)methyl)urea	分子量：282.40 密度：N/A 沸点：N/A 熔点：N/A	2034452-41-8	C₁₄H₂₂N₂O₂S
trans-1-(2-Methoxyethyl)-4-phenylpyrrolidin-3-amine dihydrochloride	trans-1-(2-Methoxyethyl)-4-phenylpyrrolidin-3-amine dihydrochloride	分子量：293.23 密度：N/A 沸点：N/A 熔点：N/A	1414566-62-3	C₁₃H₂₂Cl₂N₂O
4-(3-Fluorophenyl)-1-(2-methoxyethyl)pyrrolidin-3-amine;dihydrochloride	4-(3-Fluorophenyl)-1-(2-methoxyethyl)pyrrolidin-3-amine;dihydrochloride	分子量：311.22 密度：N/A 沸点：N/A 熔点：N/A	1414567-41-1	C₁₃H₂₁Cl₂FN₂O
4-Azidopyrrolidin-3-ol hydrochloride	4-Azidopyrrolidin-3-ol hydrochloride	分子量：164.59 密度：N/A 沸点：N/A 熔点：N/A	2503206-10-6	C₄H₉ClN₄O
2-(6-Chloro-5-methylpyridin-3-yl)ethan-1-ol	2-(6-Chloro-5-methylpyridin-3-yl)ethan-1-ol	分子量：171.62 密度：N/A 沸点：N/A 熔点：N/A	1355204-52-2	C₈H₁₀ClNO
1-Phenyl-3-((1-(thiophen-3-yl)cyclopentyl)methyl)urea	1-Phenyl-3-((1-(thiophen-3-yl)cyclopentyl)methyl)urea	分子量：300.4 密度：N/A 沸点：N/A 熔点：N/A	2034575-25-0	C₁₇H₂₀N₂OS
3-Chloro-7-bromobenzo[b]thiophene-2-carboxylic acid	3-Chloro-7-bromobenzo[b]thiophene-2-carboxylic acid	分子量：291.55 密度：N/A 沸点：N/A 熔点：N/A	1782405-83-7	C₉H₄BrClO₂S
1-Phenethyl-3-((1-(thiophen-3-yl)cyclopentyl)methyl)urea	1-Phenethyl-3-((1-(thiophen-3-yl)cyclopentyl)methyl)urea	分子量：328.5 密度：N/A 沸点：N/A 熔点：N/A	2034600-71-8	C₁₉H₂₄N₂OS
1-(Thiophen-2-yl)-3-((1-(thiophen-3-yl)cyclopentyl)methyl)urea	1-(Thiophen-2-yl)-3-((1-(thiophen-3-yl)cyclopentyl)methyl)urea	分子量：306.5 密度：N/A 沸点：N/A 熔点：N/A	2034350-85-9	C₁₅H₁₈N₂OS₂
1-((1-(Thiophen-3-yl)cyclopentyl)methyl)-3-(o-tolyl)urea	1-((1-(Thiophen-3-yl)cyclopentyl)methyl)-3-(o-tolyl)urea	分子量：314.4 密度：N/A 沸点：N/A 熔点：N/A	2034478-11-8	C₁₈H₂₂N₂OS
1-(Thiophen-2-ylmethyl)-3-((1-(thiophen-3-yl)cyclopentyl)methyl)urea	1-(Thiophen-2-ylmethyl)-3-((1-(thiophen-3-yl)cyclopentyl)methyl)urea	分子量：320.5 密度：N/A 沸点：N/A 熔点：N/A	2034541-78-9	C₁₆H₂₀N₂OS₂
(E)-3-(thiophen-3-yl)-N-((1-(thiophen-3-yl)cyclopentyl)methyl)acrylamide	(E)-3-(thiophen-3-yl)-N-((1-(thiophen-3-yl)cyclopentyl)methyl)acrylamide	分子量：317.5 密度：N/A 沸点：N/A 熔点：N/A	2035036-49-6	C₁₇H₁₉NOS₂
N-(5-Fluoro-2-formylphenyl)acetamide	N-(5-Fluoro-2-formylphenyl)acetamide	分子量：181.16 密度：N/A 沸点：N/A 熔点：N/A	1642593-22-3	C₉H₈FNO₂
N-((1-(thiophen-3-yl)cyclopentyl)methyl)furan-3-carboxamide	N-((1-(thiophen-3-yl)cyclopentyl)methyl)furan-3-carboxamide	分子量：275.4 密度：N/A 沸点：N/A 熔点：N/A	2034575-08-9	C₁₅H₁₇NO₂S
N-((1-(thiophen-3-yl)cyclopentyl)methyl)ethanesulfonamide	N-((1-(thiophen-3-yl)cyclopentyl)methyl)ethanesulfonamide	分子量：273.4 密度：N/A 沸点：N/A 熔点：N/A	2034451-81-3	C₁₂H₁₉NO₂S₂
tert-Butyl 3-amino-2-(2-methoxyphenyl)pyrrolidine-1-carboxylate	tert-Butyl 3-amino-2-(2-methoxyphenyl)pyrrolidine-1-carboxylate	分子量：292.37 密度：N/A 沸点：N/A 熔点：N/A	1783604-27-2	C₁₆H₂₄N₂O₃
tert-Butyl 3-amino-2-(4-methoxyphenyl)pyrrolidine-1-carboxylate	tert-Butyl 3-amino-2-(4-methoxyphenyl)pyrrolidine-1-carboxylate	分子量：292.37 密度：N/A 沸点：N/A 熔点：N/A	1781171-60-5	C₁₆H₂₄N₂O₃
N-((1-(thiophen-3-yl)cyclopentyl)methyl)benzenesulfonamide	N-((1-(thiophen-3-yl)cyclopentyl)methyl)benzenesulfonamide	分子量：321.5 密度：N/A 沸点：N/A 熔点：N/A	2034600-00-3	C₁₆H₁₉NO₂S₂
N-((1-(thiophen-3-yl)cyclopentyl)methyl)pyridine-3-sulfonamide	N-((1-(thiophen-3-yl)cyclopentyl)methyl)pyridine-3-sulfonamide	分子量：322.5 密度：N/A 沸点：N/A 熔点：N/A	2034518-13-1	C₁₅H₁₈N₂O₂S₂
5-methyl-N-((1-(thiophen-3-yl)cyclopentyl)methyl)thiophene-2-sulfonamide	5-methyl-N-((1-(thiophen-3-yl)cyclopentyl)methyl)thiophene-2-sulfonamide	分子量：341.5 密度：N/A 沸点：N/A 熔点：N/A	2034451-91-5	C₁₅H₁₉NO₂S₃
(E)-2-phenyl-N-((1-(thiophen-3-yl)cyclopentyl)methyl)ethenesulfonamide	(E)-2-phenyl-N-((1-(thiophen-3-yl)cyclopentyl)methyl)ethenesulfonamide	分子量：347.5 密度：N/A 沸点：N/A 熔点：N/A	2035021-86-2	C₁₈H₂₁NO₂S₂
1-(4-fluorophenyl)-N-((1-(thiophen-3-yl)cyclopentyl)methyl)methanesulfonamide	1-(4-fluorophenyl)-N-((1-(thiophen-3-yl)cyclopentyl)methyl)methanesulfonamide	分子量：353.5 密度：N/A 沸点：N/A 熔点：N/A	2034600-06-9	C₁₇H₂₀FNO₂S₂
2-(2,3-Dimethoxyphenyl)-2-fluoroethan-1-amine	2-(2,3-Dimethoxyphenyl)-2-fluoroethan-1-amine	分子量：199.22 密度：N/A 沸点：N/A 熔点：N/A	1547865-34-8	C₁₀H₁₄FNO₂
2,5-difluoro-N-((1-(thiophen-3-yl)cyclopentyl)methyl)benzenesulfonamide	2,5-difluoro-N-((1-(thiophen-3-yl)cyclopentyl)methyl)benzenesulfonamide	分子量：357.4 密度：N/A 沸点：N/A 熔点：N/A	2034518-22-2	C₁₆H₁₇F₂NO₂S₂
4-methoxy-3-methyl-N-((1-(thiophen-3-yl)cyclopentyl)methyl)benzenesulfonamide	4-methoxy-3-methyl-N-((1-(thiophen-3-yl)cyclopentyl)methyl)benzenesulfonamide	分子量：365.5 密度：N/A 沸点：N/A 熔点：N/A	2034451-96-0	C₁₈H₂₃NO₃S₂
3-fluoro-4-methoxy-N-((1-(thiophen-3-yl)cyclopentyl)methyl)benzenesulfonamide	3-fluoro-4-methoxy-N-((1-(thiophen-3-yl)cyclopentyl)methyl)benzenesulfonamide	分子量：369.5 密度：N/A 沸点：N/A 熔点：N/A	2034518-33-5	C₁₇H₂₀FNO₃S₂
N-(4-(N-((1-(thiophen-3-yl)cyclopentyl)methyl)sulfamoyl)phenyl)acetamide	N-(4-(N-((1-(thiophen-3-yl)cyclopentyl)methyl)sulfamoyl)phenyl)acetamide	分子量：378.5 密度：N/A 沸点：N/A 熔点：N/A	2034452-00-9	C₁₈H₂₂N₂O₃S₂
2-(4-methoxyphenyl)-N-((1-(thiophen-3-yl)cyclopentyl)methyl)ethanesulfonamide	2-(4-methoxyphenyl)-N-((1-(thiophen-3-yl)cyclopentyl)methyl)ethanesulfonamide	分子量：379.5 密度：N/A 沸点：N/A 熔点：N/A	2034518-41-5	C₁₉H₂₅NO₃S₂
3,4-dimethoxy-N-((1-(thiophen-3-yl)cyclopentyl)methyl)benzenesulfonamide	3,4-dimethoxy-N-((1-(thiophen-3-yl)cyclopentyl)methyl)benzenesulfonamide	分子量：381.5 密度：N/A 沸点：N/A 熔点：N/A	2034600-55-8	C₁₈H₂₃NO₄S₂