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
7,7,7-Trifluorohept-3-en-2-amine	7,7,7-Trifluorohept-3-en-2-amine	分子量：167.17 密度：N/A 沸点：N/A 熔点：N/A	2229684-15-3	C₇H₁₂F₃N
1-[1-(2-Bromo-5-methylphenyl)cyclopropyl]ethan-1-one	1-[1-(2-Bromo-5-methylphenyl)cyclopropyl]ethan-1-one	分子量：253.13 密度：N/A 沸点：N/A 熔点：N/A	2229507-58-6	C₁₂H₁₃BrO
3-(2,5-Difluorophenyl)-2-hydroxy-2-methylpropanoic acid	3-(2,5-Difluorophenyl)-2-hydroxy-2-methylpropanoic acid	分子量：216.18 密度：N/A 沸点：N/A 熔点：N/A	2229507-79-1	C₁₀H₁₀F₂O₃
N'-[(2H-1,3-benzodioxol-5-yl)methyl]-N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}ethanediamide	N'-[(2H-1,3-benzodioxol-5-yl)methyl]-N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}ethanediamide	分子量：398.4 密度：N/A 沸点：N/A 熔点：N/A	2741897-61-8	C₂₀H₁₈N₂O₅S
4-Oxo-1-(1,2,3-thiadiazol-4-yl)cyclohexane-1-carboxylic acid	4-Oxo-1-(1,2,3-thiadiazol-4-yl)cyclohexane-1-carboxylic acid	分子量：226.25 密度：N/A 沸点：N/A 熔点：N/A	2229173-26-4	C₉H₁₀N₂O₃S
N'-(3-chloro-4-fluorophenyl)-N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}ethanediamide	N'-(3-chloro-4-fluorophenyl)-N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}ethanediamide	分子量：392.8 密度：N/A 沸点：N/A 熔点：N/A	2742047-56-7	C₁₈H₁₄ClFN₂O₃S
7-{4-[5-amino-1-(4-ethylphenyl)-1H-1,2,3-triazole-4-carbonyl]piperazin-1-yl}-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid	7-{4-[5-amino-1-(4-ethylphenyl)-1H-1,2,3-triazole-4-carbonyl]piperazin-1-yl}-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid	分子量：545.6 密度：N/A 沸点：N/A 熔点：N/A	2742066-13-1	C₂₈H₂₈FN₇O₄
2-Methoxy-3-(5-methyl-1,2-oxazol-4-yl)propanoic acid	2-Methoxy-3-(5-methyl-1,2-oxazol-4-yl)propanoic acid	分子量：185.18 密度：N/A 沸点：N/A 熔点：N/A	2229311-60-6	C₈H₁₁NO₄
2,2-Difluoro-1-(oxan-3-yl)cyclopropane-1-carboxylic acid	2,2-Difluoro-1-(oxan-3-yl)cyclopropane-1-carboxylic acid	分子量：206.19 密度：N/A 沸点：N/A 熔点：N/A	2229222-15-3	C₉H₁₂F₂O₃
Sodium 1-(methoxycarbonyl)cyclobutane-1-sulfinate	Sodium 1-(methoxycarbonyl)cyclobutane-1-sulfinate	分子量：200.19 密度：N/A 沸点：N/A 熔点：N/A	2137871-10-2	C₆H₉NaO₄S
rac-(3aR,6aR)-5-methyl-hexahydro-1H-furo[3,4-c]pyrrole-3a-carboxylic acid hydrochloride	rac-(3aR,6aR)-5-methyl-hexahydro-1H-furo[3,4-c]pyrrole-3a-carboxylic acid hydrochloride	分子量：207.65 密度：N/A 沸点：N/A 熔点：N/A	2241139-72-8	C₈H₁₄ClNO₃
1-(4-Methylthiophen-3-yl)cyclopropane-1-carbaldehyde	1-(4-Methylthiophen-3-yl)cyclopropane-1-carbaldehyde	分子量：166.24 密度：N/A 沸点：N/A 熔点：N/A	2228139-96-4	C₉H₁₀OS
4-Methylpentane-2-sulfinyl chloride	4-Methylpentane-2-sulfinyl chloride	分子量：168.69 密度：N/A 沸点：N/A 熔点：N/A	2137761-46-5	C₆H₁₃ClOS
[1-(Diethoxymethyl)-2,2-difluorocyclopropyl]methanamine	[1-(Diethoxymethyl)-2,2-difluorocyclopropyl]methanamine	分子量：209.23 密度：N/A 沸点：N/A 熔点：N/A	2229524-05-2	C₉H₁₇F₂NO₂
4-Ethoxy-2-hydroxypentanoic acid	4-Ethoxy-2-hydroxypentanoic acid	分子量：162.18 密度：N/A 沸点：N/A 熔点：N/A	857481-06-2	C₇H₁₄O₄
(2Z)-6-tert-butyl-8-hydroxy-2-[(4-methylphenyl)imino]-2H-chromene-3-carboxamide	(2Z)-6-tert-butyl-8-hydroxy-2-[(4-methylphenyl)imino]-2H-chromene-3-carboxamide	分子量：350.4 密度：N/A 沸点：N/A 熔点：N/A	2742610-96-2	C₂₁H₂₂N₂O₃
(2Z)-6-tert-butyl-8-hydroxy-2-[(3-methylphenyl)imino]-2H-chromene-3-carboxamide	(2Z)-6-tert-butyl-8-hydroxy-2-[(3-methylphenyl)imino]-2H-chromene-3-carboxamide	分子量：350.4 密度：N/A 沸点：N/A 熔点：N/A	2742610-98-4	C₂₁H₂₂N₂O₃
N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}-2-(trifluoromethyl)benzamide	N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}-2-(trifluoromethyl)benzamide	分子量：365.4 密度：N/A 沸点：N/A 熔点：N/A	2742056-31-9	C₁₈H₁₄F₃NO₂S
Ethyl 2-chloro-5-(cyanomethyl)isonicotinate	Ethyl 2-chloro-5-(cyanomethyl)isonicotinate	分子量：224.64 密度：N/A 沸点：N/A 熔点：N/A	2845996-19-0	C₁₀H₉ClN₂O₂
(3-Ethoxy-2-fluoro-5-methoxyphenyl)(methyl)sulfane	(3-Ethoxy-2-fluoro-5-methoxyphenyl)(methyl)sulfane	分子量：216.27 密度：N/A 沸点：N/A 熔点：N/A	2705651-37-0	C₁₀H₁₃FO₂S
N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}-2-(methylsulfanyl)benzamide	N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}-2-(methylsulfanyl)benzamide	分子量：343.5 密度：N/A 沸点：N/A 熔点：N/A	2741955-58-6	C₁₈H₁₇NO₂S₂
2-chloro-N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}benzamide	2-chloro-N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}benzamide	分子量：331.8 密度：N/A 沸点：N/A 熔点：N/A	2742015-50-3	C₁₇H₁₄ClNO₂S
3-(3,3-Dimethylcyclohexyl)-3-hydroxypropanoic acid	3-(3,3-Dimethylcyclohexyl)-3-hydroxypropanoic acid	分子量：200.27 密度：N/A 沸点：N/A 熔点：N/A	2228863-03-2	C₁₁H₂₀O₃
4-(dimethylamino)-N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}benzamide	4-(dimethylamino)-N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}benzamide	分子量：340.4 密度：N/A 沸点：N/A 熔点：N/A	2742047-60-3	C₁₉H₂₀N₂O₂S
N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}-4-methoxybenzamide	N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}-4-methoxybenzamide	分子量：327.4 密度：N/A 沸点：N/A 熔点：N/A	2742079-21-4	C₁₈H₁₇NO₃S
N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}-2-phenoxypropanamide	N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}-2-phenoxypropanamide	分子量：341.4 密度：N/A 沸点：N/A 熔点：N/A	2741932-97-6	C₁₉H₁₉NO₃S
methyl 6-[(3S)-3-hydroxybutyl]pyridine-3-carboxylate	methyl 6-[(3S)-3-hydroxybutyl]pyridine-3-carboxylate	分子量：209.24 密度：N/A 沸点：N/A 熔点：N/A	2227695-29-4	C₁₁H₁₅NO₃
2-(1,2-Difluoroethyl)-3,5-difluorobenzaldehyde	2-(1,2-Difluoroethyl)-3,5-difluorobenzaldehyde	分子量：206.14 密度：N/A 沸点：N/A 熔点：N/A	2756154-24-0	C₉H₆F₄O
2,3-Diamino-4-bromo-5-chlorobenzoic acid	2,3-Diamino-4-bromo-5-chlorobenzoic acid	分子量：265.49 密度：N/A 沸点：N/A 熔点：N/A	2138405-32-8	C₇H₆BrClN₂O₂
3-(2-fluorophenyl)-N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}propanamide	3-(2-fluorophenyl)-N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}propanamide	分子量：343.4 密度：N/A 沸点：N/A 熔点：N/A	2741908-76-7	C₁₉H₁₈FNO₂S
N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}-2-(2-methylphenoxy)acetamide	N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}-2-(2-methylphenoxy)acetamide	分子量：341.4 密度：N/A 沸点：N/A 熔点：N/A	2741955-14-4	C₁₉H₁₉NO₃S
3-{2-[5-(Furan-2-yl)thiophen-2-yl]ethyl}-1-(thiophen-2-yl)urea	3-{2-[5-(Furan-2-yl)thiophen-2-yl]ethyl}-1-(thiophen-2-yl)urea	分子量：318.4 密度：N/A 沸点：N/A 熔点：N/A	2742067-97-4	C₁₅H₁₄N₂O₂S₂
N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}thiophene-2-sulfonamide	N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}thiophene-2-sulfonamide	分子量：339.5 密度：N/A 沸点：N/A 熔点：N/A	2742058-48-4	C₁₄H₁₃NO₃S₃
1-(2H-1,3-benzodioxol-5-yl)-3-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}urea	1-(2H-1,3-benzodioxol-5-yl)-3-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}urea	分子量：356.4 密度：N/A 沸点：N/A 熔点：N/A	2742065-06-9	C₁₈H₁₆N₂O₄S
N'-(2,3-dimethylphenyl)-N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}ethanediamide	N'-(2,3-dimethylphenyl)-N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}ethanediamide	分子量：368.5 密度：N/A 沸点：N/A 熔点：N/A	2742012-76-4	C₂₀H₂₀N₂O₃S
3-{2-[5-(Furan-2-yl)thiophen-2-yl]ethyl}-1-(2-methoxyphenyl)urea	3-{2-[5-(Furan-2-yl)thiophen-2-yl]ethyl}-1-(2-methoxyphenyl)urea	分子量：342.4 密度：N/A 沸点：N/A 熔点：N/A	2742051-64-3	C₁₈H₁₈N₂O₃S
3-{2-[5-(Furan-2-yl)thiophen-2-yl]ethyl}-1-[(4-methoxyphenyl)methyl]urea	3-{2-[5-(Furan-2-yl)thiophen-2-yl]ethyl}-1-[(4-methoxyphenyl)methyl]urea	分子量：356.4 密度：N/A 沸点：N/A 熔点：N/A	2741922-63-2	C₁₉H₂₀N₂O₃S
5-{3-[(2-methyl-1H-imidazol-1-yl)methyl]azetidine-1-carbonyl}-3-phenyl-2,1-benzoxazole	5-{3-[(2-methyl-1H-imidazol-1-yl)methyl]azetidine-1-carbonyl}-3-phenyl-2,1-benzoxazole	分子量：372.4 密度：N/A 沸点：N/A 熔点：N/A	2741922-66-5	C₂₂H₂₀N₄O₂
Ethyl 4-bromo-1-(2-ethoxy-2-oxoethyl)-2-formyl-1H-pyrrole-3-carboxylate	Ethyl 4-bromo-1-(2-ethoxy-2-oxoethyl)-2-formyl-1H-pyrrole-3-carboxylate	分子量：332.15 密度：N/A 沸点：N/A 熔点：N/A	2844395-39-5	C₁₂H₁₄BrNO₅
2,6-difluoro-N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}benzamide	2,6-difluoro-N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}benzamide	分子量：333.4 密度：N/A 沸点：N/A 熔点：N/A	2742031-97-4	C₁₇H₁₃F₂NO₂S
N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}-1H-indole-2-carboxamide	N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}-1H-indole-2-carboxamide	分子量：336.4 密度：N/A 沸点：N/A 熔点：N/A	2741918-52-3	C₁₉H₁₆N₂O₂S
N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}-1,3-benzothiazole-6-carboxamide	N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}-1,3-benzothiazole-6-carboxamide	分子量：354.4 密度：N/A 沸点：N/A 熔点：N/A	2742018-22-8	C₁₈H₁₄N₂O₂S₂
N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}-2,1,3-benzothiadiazole-5-carboxamide	N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}-2,1,3-benzothiadiazole-5-carboxamide	分子量：355.4 密度：N/A 沸点：N/A 熔点：N/A	2741912-67-2	C₁₇H₁₃N₃O₂S₂
3,4-difluoro-N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}benzene-1-sulfonamide	3,4-difluoro-N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}benzene-1-sulfonamide	分子量：369.4 密度：N/A 沸点：N/A 熔点：N/A	2741933-01-5	C₁₆H₁₃F₂NO₃S₂
N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}-2-methoxy-4,5-dimethylbenzene-1-sulfonamide	N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}-2-methoxy-4,5-dimethylbenzene-1-sulfonamide	分子量：391.5 密度：N/A 沸点：N/A 熔点：N/A	2742037-82-5	C₁₉H₂₁NO₄S₂
3-Cyclopropyl-6,7-difluoro-2-({[3-(2-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl}sulfanyl)-3,4-dihydroquinazolin-4-one	3-Cyclopropyl-6,7-difluoro-2-({[3-(2-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl}sulfanyl)-3,4-dihydroquinazolin-4-one	分子量：426.4 密度：N/A 沸点：N/A 熔点：N/A	2742066-85-7	C₂₁H₁₆F₂N₄O₂S
N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}-N'-[4-(trifluoromethoxy)phenyl]ethanediamide	N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}-N'-[4-(trifluoromethoxy)phenyl]ethanediamide	分子量：424.4 密度：N/A 沸点：N/A 熔点：N/A	2742010-48-4	C₁₉H₁₅F₃N₂O₄S
3-Cyclopropyl-2-[({3-[4-(dimethylamino)phenyl]-1,2,4-oxadiazol-5-yl}methyl)sulfanyl]-6,7-difluoro-3,4-dihydroquinazolin-4-one	3-Cyclopropyl-2-[({3-[4-(dimethylamino)phenyl]-1,2,4-oxadiazol-5-yl}methyl)sulfanyl]-6,7-difluoro-3,4-dihydroquinazolin-4-one	分子量：455.5 密度：N/A 沸点：N/A 熔点：N/A	2742057-05-0	C₂₂H₁₉F₂N₅O₂S
2-bromo-N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}benzene-1-sulfonamide	2-bromo-N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}benzene-1-sulfonamide	分子量：412.3 密度：N/A 沸点：N/A 熔点：N/A	2741893-62-7	C₁₆H₁₄BrNO₃S₂
(2Z)-2-[(2-bromophenyl)imino]-N-(4-methoxyphenyl)-2H-chromene-3-carboxamide	(2Z)-2-[(2-bromophenyl)imino]-N-(4-methoxyphenyl)-2H-chromene-3-carboxamide	分子量：449.3 密度：N/A 沸点：N/A 熔点：N/A	2742610-99-5	C₂₃H₁₇BrN₂O₃