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-ethoxyphenyl)-N-(5-(isoxazol-5-yl)-1,3,4-oxadiazol-2-yl)acetamide	2-(4-ethoxyphenyl)-N-(5-(isoxazol-5-yl)-1,3,4-oxadiazol-2-yl)acetamide	分子量：314.30 密度：N/A 沸点：N/A 熔点：N/A	946208-27-1	C₁₅H₁₄N₄O₄
2-((2-[1-(Methoxymethyl)-1h-1,2,4-triazol-5-yl]hydrazino)carbonyl)benzoic acid	2-((2-[1-(Methoxymethyl)-1h-1,2,4-triazol-5-yl]hydrazino)carbonyl)benzoic acid	分子量：291.26 密度：N/A 沸点：N/A 熔点：N/A	2199407-49-1	C₁₂H₁₃N₅O₄
N-(5-(isoxazol-5-yl)-1,3,4-oxadiazol-2-yl)-1-tosylpiperidine-4-carboxamide	N-(5-(isoxazol-5-yl)-1,3,4-oxadiazol-2-yl)-1-tosylpiperidine-4-carboxamide	分子量：417.4 密度：N/A 沸点：N/A 熔点：N/A	952848-29-2	C₁₈H₁₉N₅O₅S
[(3-Formyl-2h-chromen-4-yl)thio]acetic acid	[(3-Formyl-2h-chromen-4-yl)thio]acetic acid	分子量：250.27 密度：N/A 沸点：N/A 熔点：N/A	2200388-64-1	C₁₂H₁₀O₄S
4-(N-cyclopropyl-N-methylsulfamoyl)-N-(5-(isoxazol-5-yl)-1,3,4-oxadiazol-2-yl)benzamide	4-(N-cyclopropyl-N-methylsulfamoyl)-N-(5-(isoxazol-5-yl)-1,3,4-oxadiazol-2-yl)benzamide	分子量：389.4 密度：N/A 沸点：N/A 熔点：N/A	946208-30-6	C₁₆H₁₅N₅O₅S
5-chloro-1-methyl-1H-1,2,4-triazole-3-carboxamide	5-chloro-1-methyl-1H-1,2,4-triazole-3-carboxamide	分子量：160.56 密度：N/A 沸点：N/A 熔点：N/A	2168214-27-3	C₄H₅ClN₄O
N-(4-chlorobenzo[d]thiazol-2-yl)-3-methylisoxazole-5-carboxamide	N-(4-chlorobenzo[d]thiazol-2-yl)-3-methylisoxazole-5-carboxamide	分子量：293.73 密度：N/A 沸点：N/A 熔点：N/A	946229-20-5	C₁₂H₈ClN₃O₂S
3-[(2,4-dichlorobenzyl)oxy]-N'-[imino(3-pyridinyl)methyl]-2-thiophenecarbohydrazide	3-[(2,4-dichlorobenzyl)oxy]-N'-[imino(3-pyridinyl)methyl]-2-thiophenecarbohydrazide	分子量：421.3 密度：N/A 沸点：N/A 熔点：N/A	339009-62-0	C₁₈H₁₄Cl₂N₄O₂S
1-[(2,4-Dichlorophenyl)methyl]-1H-pyrazolo[3,4-b]pyridine-3-carboxylic acid	1-[(2,4-Dichlorophenyl)methyl]-1H-pyrazolo[3,4-b]pyridine-3-carboxylic acid	分子量：322.1 密度：N/A 沸点：N/A 熔点：N/A	875577-77-8	C₁₄H₉Cl₂N₃O₂
2-{[1-(3-Methyl-1,2,4-thiadiazol-5-yl)piperidin-4-yl]methoxy}-6-(trifluoromethyl)pyridine	2-{[1-(3-Methyl-1,2,4-thiadiazol-5-yl)piperidin-4-yl]methoxy}-6-(trifluoromethyl)pyridine	分子量：358.4 密度：N/A 沸点：N/A 熔点：N/A	2197884-52-7	C₁₅H₁₇F₃N₄OS
3-methyl-N-(4-phenylthiazol-2-yl)isoxazole-5-carboxamide	3-methyl-N-(4-phenylthiazol-2-yl)isoxazole-5-carboxamide	分子量：285.32 密度：N/A 沸点：N/A 熔点：N/A	946229-32-9	C₁₄H₁₁N₃O₂S
2-cyano-N'-{2-methylpyrazolo[1,5-a]pyrimidine-6-carboximidoyl}acetohydrazide	2-cyano-N'-{2-methylpyrazolo[1,5-a]pyrimidine-6-carboximidoyl}acetohydrazide	分子量：257.25 密度：N/A 沸点：N/A 熔点：N/A	400078-00-4	C₁₁H₁₁N₇O
1-Butyl-2-(1-methylethyl)-1H-imidazole	1-Butyl-2-(1-methylethyl)-1H-imidazole	分子量：166.26 密度：N/A 沸点：N/A 熔点：N/A	46029-32-7	C₁₀H₁₈N₂
2-{4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}-N'-(2-cyanoethanimidoyl)acetohydrazide	2-{4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}-N'-(2-cyanoethanimidoyl)acetohydrazide	分子量：403.79 密度：N/A 沸点：N/A 熔点：N/A	338979-35-4	C₁₅H₁₇ClF₃N₇O
6-Bromo-7-chloro-2-methylbenzothiazole	6-Bromo-7-chloro-2-methylbenzothiazole	分子量：262.55 密度：N/A 沸点：N/A 熔点：N/A	1025903-60-9	C₈H₅BrClNS
2-[(4-cyano-5-methyl-1,2-thiazol-3-yl)sulfanyl]-N'-[2-(2,4-dichlorophenoxy)ethanimidoyl]acetohydrazide	2-[(4-cyano-5-methyl-1,2-thiazol-3-yl)sulfanyl]-N'-[2-(2,4-dichlorophenoxy)ethanimidoyl]acetohydrazide	分子量：430.3 密度：N/A 沸点：N/A 熔点：N/A	338395-70-3	C₁₅H₁₃Cl₂N₅O₂S₂
Calolongic acid	Calolongic acid	分子量：388.5 密度：N/A 沸点：N/A 熔点：N/A	686318-85-4	C₂₂H₂₈O₆
Ethyl 3-(2-{4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}acetohydrazido)-3-iminopropanoate	Ethyl 3-(2-{4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}acetohydrazido)-3-iminopropanoate	分子量：450.8 密度：N/A 沸点：N/A 熔点：N/A	338979-34-3	C₁₇H₂₂ClF₃N₆O₃
3-methyl-N-[4-(4-phenoxyphenyl)-1,3-thiazol-2-yl]-1,2-oxazole-5-carboxamide	3-methyl-N-[4-(4-phenoxyphenyl)-1,3-thiazol-2-yl]-1,2-oxazole-5-carboxamide	分子量：377.4 密度：N/A 沸点：N/A 熔点：N/A	953209-29-5	C₂₀H₁₅N₃O₃S
4-Methoxy-2-[4-({[6-(trifluoromethyl)pyridin-2-yl]oxy}methyl)piperidin-1-yl]pyrimidine	4-Methoxy-2-[4-({[6-(trifluoromethyl)pyridin-2-yl]oxy}methyl)piperidin-1-yl]pyrimidine	分子量：368.35 密度：N/A 沸点：N/A 熔点：N/A	2201782-91-2	C₁₇H₁₉F₃N₄O₂
2-(6-oxo-3-(pyridin-4-yl)pyridazin-1(6H)-yl)-N-((2-phenylthiazol-4-yl)methyl)propanamide	2-(6-oxo-3-(pyridin-4-yl)pyridazin-1(6H)-yl)-N-((2-phenylthiazol-4-yl)methyl)propanamide	分子量：417.5 密度：N/A 沸点：N/A 熔点：N/A	2194906-77-7	C₂₂H₁₉N₅O₂S
2-(Benzylthio)-1-(4-(((3,5-dimethoxybenzyl)oxy)methyl)piperidin-1-yl)ethanone	2-(Benzylthio)-1-(4-(((3,5-dimethoxybenzyl)oxy)methyl)piperidin-1-yl)ethanone	分子量：429.6 密度：N/A 沸点：N/A 熔点：N/A	2097933-05-4	C₂₄H₃₁NO₄S
1-(4-(((4-Fluorobenzyl)oxy)methyl)piperidin-1-yl)-2-(4-(isopropylthio)phenyl)ethanone	1-(4-(((4-Fluorobenzyl)oxy)methyl)piperidin-1-yl)-2-(4-(isopropylthio)phenyl)ethanone	分子量：415.6 密度：N/A 沸点：N/A 熔点：N/A	2097901-23-8	C₂₄H₃₀FNO₂S
2-({1-[(1,3,4-Oxadiazol-2-yl)methyl]piperidin-4-yl}methoxy)-6-(trifluoromethyl)pyridine	2-({1-[(1,3,4-Oxadiazol-2-yl)methyl]piperidin-4-yl}methoxy)-6-(trifluoromethyl)pyridine	分子量：342.32 密度：N/A 沸点：N/A 熔点：N/A	2198358-74-4	C₁₅H₁₇F₃N₄O₂
2-({1-[2-(1H-1,2,3-triazol-1-yl)ethyl]piperidin-4-yl}methoxy)-6-(trifluoromethyl)pyridine	2-({1-[2-(1H-1,2,3-triazol-1-yl)ethyl]piperidin-4-yl}methoxy)-6-(trifluoromethyl)pyridine	分子量：355.36 密度：N/A 沸点：N/A 熔点：N/A	2198373-39-4	C₁₆H₂₀F₃N₅O
2-({1-[(2-Methyl-1,3-oxazol-4-yl)methyl]piperidin-4-yl}methoxy)-6-(trifluoromethyl)pyridine	2-({1-[(2-Methyl-1,3-oxazol-4-yl)methyl]piperidin-4-yl}methoxy)-6-(trifluoromethyl)pyridine	分子量：355.35 密度：N/A 沸点：N/A 熔点：N/A	2202506-84-9	C₁₇H₂₀F₃N₃O₂
5-Cyano-2-oxo-1,2-dihydropyridine-3-carboxylic acid	5-Cyano-2-oxo-1,2-dihydropyridine-3-carboxylic acid	分子量：164.12 密度：N/A 沸点：N/A 熔点：N/A	1804409-12-8	C₇H₄N₂O₃
1,1-Dimethylethyl 2-[[[(phenylmethoxy)carbonyl]amino]methyl]-1-piperidinecarboxylate	1,1-Dimethylethyl 2-[[[(phenylmethoxy)carbonyl]amino]methyl]-1-piperidinecarboxylate	分子量：348.4 密度：N/A 沸点：N/A 熔点：N/A	1823225-89-3	C₁₉H₂₈N₂O₄
Benzofuran-2-yl(3-(phenoxymethyl)azetidin-1-yl)methanone	Benzofuran-2-yl(3-(phenoxymethyl)azetidin-1-yl)methanone	分子量：307.3 密度：N/A 沸点：N/A 熔点：N/A	2309343-35-7	C₁₉H₁₇NO₃
3-Fluoro-5-phenylbenzaldehyde	3-Fluoro-5-phenylbenzaldehyde	分子量：200.21 密度：N/A 沸点：N/A 熔点：N/A	1645949-36-5	C₁₃H₉FO
Ethyl 4-methyl-2-(3-pyridinyl)-5-thiazoleacetate	Ethyl 4-methyl-2-(3-pyridinyl)-5-thiazoleacetate	分子量：262.33 密度：N/A 沸点：N/A 熔点：N/A	802894-17-3	C₁₃H₁₄N₂O₂S
(4-Mercapto-3-nitrophenyl)methanol	(4-Mercapto-3-nitrophenyl)methanol	分子量：185.20 密度：N/A 沸点：N/A 熔点：N/A	1378359-36-4	C₇H₇NO₃S
2-Azido-5-chloro-3-methylimidazole-4-carbaldehyde	2-Azido-5-chloro-3-methylimidazole-4-carbaldehyde	分子量：185.57 密度：N/A 沸点：N/A 熔点：N/A	1314745-32-8	C₅H₄ClN₅O
2-(Azetidin-3-yl)-5-chloropyridine	2-(Azetidin-3-yl)-5-chloropyridine	分子量：168.62 密度：N/A 沸点：N/A 熔点：N/A	1260845-92-8	C₈H₉ClN₂
1-(ethylsulfonyl)-4-Piperidineethanol	1-(ethylsulfonyl)-4-Piperidineethanol	分子量：221.32 密度：N/A 沸点：N/A 熔点：N/A	1435489-63-6	C₉H₁₉NO₃S
4-Chloro-2-cyclopropyl-1-fluorobenzene	4-Chloro-2-cyclopropyl-1-fluorobenzene	分子量：170.61 密度：N/A 沸点：N/A 熔点：N/A	1379221-50-7	C₉H₈ClF
1-Chloro-4-(chloromethyl)-2-ethylbenzene	1-Chloro-4-(chloromethyl)-2-ethylbenzene	分子量：189.08 密度：N/A 沸点：N/A 熔点：N/A	1378801-91-2	C₉H₁₀Cl₂
Methyl 4,5-dimethyl-2-oxo-3,6-dioxabicyclo[3.1.0]hexane-1-carboxylate	Methyl 4,5-dimethyl-2-oxo-3,6-dioxabicyclo[3.1.0]hexane-1-carboxylate	分子量：186.16 密度：N/A 沸点：N/A 熔点：N/A	142438-60-6	C₈H₁₀O₅
Imidazo[1,2-b]pyridazine-8-carboxylic acid	Imidazo[1,2-b]pyridazine-8-carboxylic acid	分子量：163.13 密度：N/A 沸点：N/A 熔点：N/A	1159977-66-8	C₇H₅N₃O₂
6,7-Dimethyl-[1,2,4]triazolo[4,3-a]pyridine-3-carboxylic acid	6,7-Dimethyl-[1,2,4]triazolo[4,3-a]pyridine-3-carboxylic acid	分子量：191.19 密度：N/A 沸点：N/A 熔点：N/A	1159830-81-5	C₉H₉N₃O₂
2-{[1-(6-Tert-butylpyridazin-3-yl)piperidin-4-yl]methyl}-6-cyclopropyl-2,3-dihydropyridazin-3-one	2-{[1-(6-Tert-butylpyridazin-3-yl)piperidin-4-yl]methyl}-6-cyclopropyl-2,3-dihydropyridazin-3-one	分子量：367.5 密度：N/A 沸点：N/A 熔点：N/A	2202260-30-6	C₂₁H₂₉N₅O
2H,3H,4H-pyrano[2,3-b]pyridin-3-amine	2H,3H,4H-pyrano[2,3-b]pyridin-3-amine	分子量：150.18 密度：N/A 沸点：N/A 熔点：N/A	1211517-74-6	C₈H₁₀N₂O
6,8-Dimethyl-[1,2,4]triazolo[4,3-a]pyridine-3-carboxylic acid	6,8-Dimethyl-[1,2,4]triazolo[4,3-a]pyridine-3-carboxylic acid	分子量：191.19 密度：N/A 沸点：N/A 熔点：N/A	1159833-00-7	C₉H₉N₃O₂
4-Chloro-7-methylthiazolo[5,4-c]pyridine	4-Chloro-7-methylthiazolo[5,4-c]pyridine	分子量：184.65 密度：N/A 沸点：N/A 熔点：N/A	1159829-12-5	C₇H₅ClN₂S
CID 129914690	CID 129914690	分子量：175.70 密度：N/A 沸点：N/A 熔点：N/A	464175-13-1	C₉H₁₈ClN
6,7-Difluorochroman-4-ol	6,7-Difluorochroman-4-ol	分子量：186.15 密度：N/A 沸点：N/A 熔点：N/A	1270585-44-8	C₉H₈F₂O₂
Benzonitrile, 4-(chloromethyl)-2-nitro-	Benzonitrile, 4-(chloromethyl)-2-nitro-	分子量：196.59 密度：N/A 沸点：N/A 熔点：N/A	1378657-50-1	C₈H₅ClN₂O₂
[4-(Methylamino)pyrimidin-2-yl]methanol	[4-(Methylamino)pyrimidin-2-yl]methanol	分子量：139.16 密度：N/A 沸点：N/A 熔点：N/A	1346808-24-9	C₆H₉N₃O
3-(2-Chloro-4-fluorophenyl)azetidine	3-(2-Chloro-4-fluorophenyl)azetidine	分子量：185.62 密度：N/A 沸点：N/A 熔点：N/A	1260642-12-3	C₉H₉ClFN
Methyl 5-chloro-2-ethylisonicotinate	Methyl 5-chloro-2-ethylisonicotinate	分子量：199.63 密度：N/A 沸点：N/A 熔点：N/A	1256791-59-9	C₉H₁₀ClNO₂