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
(S)-Methyl 3-amino-3-(3-nitrophenyl)butanoate hydrochloride	(S)-Methyl 3-amino-3-(3-nitrophenyl)butanoate hydrochloride	分子量：274.70 密度：N/A 沸点：N/A 熔点：N/A	1363408-50-7	C₁₁H₁₅ClN₂O₄
2-(Piperidin-4-yl)-5,6,7,8-tetrahydroindolizin-3-amine	2-(Piperidin-4-yl)-5,6,7,8-tetrahydroindolizin-3-amine	分子量：219.33 密度：N/A 沸点：N/A 熔点：N/A	1384430-81-2	C₁₃H₂₁N₃
{[4-(4-Methylpiperazin-1-yl)pyrimidin-2-yl]sulfanyl}acetic acid	{[4-(4-Methylpiperazin-1-yl)pyrimidin-2-yl]sulfanyl}acetic acid	分子量：268.34 密度：N/A 沸点：N/A 熔点：N/A	861202-80-4	C₁₁H₁₆N₄O₂S
3-(2-Methoxyethoxy)-4-methyl-1-phenyl-1H-pyrazol-5-amine	3-(2-Methoxyethoxy)-4-methyl-1-phenyl-1H-pyrazol-5-amine	分子量：247.29 密度：N/A 沸点：N/A 熔点：N/A	1414568-82-3	C₁₃H₁₇N₃O₂
3-(3,4-Dichlorophenoxy)piperidine hydrochloride	3-(3,4-Dichlorophenoxy)piperidine hydrochloride	分子量：282.6 密度：N/A 沸点：N/A 熔点：N/A	1384430-09-4	C₁₁H₁₄Cl₃NO
N-(2-ethoxyphenyl)-2-{[4-(4-methylpiperazin-1-yl)pyrimidin-2-yl]sulfanyl}acetamide	N-(2-ethoxyphenyl)-2-{[4-(4-methylpiperazin-1-yl)pyrimidin-2-yl]sulfanyl}acetamide	分子量：387.5 密度：N/A 沸点：N/A 熔点：N/A	1440248-59-8	C₁₉H₂₅N₅O₂S
N-(2-ethoxyphenyl)-2-[(3-phenylquinoxalin-2-yl)sulfanyl]acetamide	N-(2-ethoxyphenyl)-2-[(3-phenylquinoxalin-2-yl)sulfanyl]acetamide	分子量：415.5 密度：N/A 沸点：N/A 熔点：N/A	1440248-75-8	C₂₄H₂₁N₃O₂S
N-(2-ethoxyphenyl)-2-(isoquinolin-1-ylsulfanyl)acetamide	N-(2-ethoxyphenyl)-2-(isoquinolin-1-ylsulfanyl)acetamide	分子量：338.4 密度：N/A 沸点：N/A 熔点：N/A	1440249-00-2	C₁₉H₁₈N₂O₂S
4-Fluoro-N-(1-hydroxypropan-2-yl)-2-iodobenzamide	4-Fluoro-N-(1-hydroxypropan-2-yl)-2-iodobenzamide	分子量：323.10 密度：N/A 沸点：N/A 熔点：N/A	1623972-02-0	C₁₀H₁₁FINO₂
8-Cyclopropyl-3-hydrazinyl-8-azabicyclo[3.2.1]octane dihydrochloride	8-Cyclopropyl-3-hydrazinyl-8-azabicyclo[3.2.1]octane dihydrochloride	分子量：254.20 密度：N/A 沸点：N/A 熔点：N/A	1384430-12-9	C₁₀H₂₁Cl₂N₃
3-[2,3,3,3-Tetrafluoro-2-(heptafluoropropoxy)propoxy]prop-1-ene	3-[2,3,3,3-Tetrafluoro-2-(heptafluoropropoxy)propoxy]prop-1-ene	分子量：356.13 密度：N/A 沸点：N/A 熔点：N/A	119511-16-9	C₉H₇F₁₁O₂
4-(3-Fluorobenzyl)-3-methyl-1H-pyrazole-5-carboxylic acid	4-(3-Fluorobenzyl)-3-methyl-1H-pyrazole-5-carboxylic acid	分子量：234.23 密度：N/A 沸点：N/A 熔点：N/A	1384167-28-5	C₁₂H₁₁FN₂O₂
2-Bromothieno[3,2-b]pyridine-7-carboxylic acid	2-Bromothieno[3,2-b]pyridine-7-carboxylic acid	分子量：258.09 密度：N/A 沸点：N/A 熔点：N/A	1430836-42-2	C₈H₄BrNO₂S
Methyl 4-(2-aminoethyl)-2-hydroxybenzoate	Methyl 4-(2-aminoethyl)-2-hydroxybenzoate	分子量：195.21 密度：N/A 沸点：N/A 熔点：N/A	32804-32-3	C₁₀H₁₃NO₃
2-(Aminomethyl)-1-(pyridin-2-yl)butan-1-ol	2-(Aminomethyl)-1-(pyridin-2-yl)butan-1-ol	分子量：180.25 密度：N/A 沸点：N/A 熔点：N/A	1538005-18-3	C₁₀H₁₆N₂O
2-[(2-Aminoethyl)sulfanyl]acetic acid hydrochloride	2-[(2-Aminoethyl)sulfanyl]acetic acid hydrochloride	分子量：171.65 密度：N/A 沸点：N/A 熔点：N/A	60116-66-7	C₄H₁₀ClNO₂S
1-methyl-1H,2H,3H,4H-pyrido[3,4-b]pyrazin-3-one	1-methyl-1H,2H,3H,4H-pyrido[3,4-b]pyrazin-3-one	分子量：163.18 密度：N/A 沸点：N/A 熔点：N/A	1384429-39-3	C₈H₉N₃O
(1-Propylpiperidin-4-yl)methanamine hydrochloride	(1-Propylpiperidin-4-yl)methanamine hydrochloride	分子量：192.73 密度：N/A 沸点：N/A 熔点：N/A	1619264-50-4	C₉H₂₁ClN₂
1-(5,6-dimethyl-1H-1,3-benzodiazol-1-yl)propan-2-amine hydrochloride	1-(5,6-dimethyl-1H-1,3-benzodiazol-1-yl)propan-2-amine hydrochloride	分子量：239.74 密度：N/A 沸点：N/A 熔点：N/A	1384429-46-2	C₁₂H₁₈ClN₃
2-Methyl-4-(piperidin-1-yl)but-2-enoic acid	2-Methyl-4-(piperidin-1-yl)but-2-enoic acid	分子量：183.25 密度：N/A 沸点：N/A 熔点：N/A	1562932-83-5	C₁₀H₁₇NO₂
N-(3,3,3-trifluoropropyl)cyclobutanamine hydrochloride	N-(3,3,3-trifluoropropyl)cyclobutanamine hydrochloride	分子量：203.63 密度：N/A 沸点：N/A 熔点：N/A	1384427-48-8	C₇H₁₃ClF₃N
N-(6,7-dihydro-4H-pyrano[4,3-d]thiazol-2-yl)-1-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide	N-(6,7-dihydro-4H-pyrano[4,3-d]thiazol-2-yl)-1-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide	分子量：291.33 密度：N/A 沸点：N/A 熔点：N/A	1421583-73-4	C₁₃H₁₃N₃O₃S
3-amino-N-ethylpyrrolidine-1-carboxamide hydrochloride	3-amino-N-ethylpyrrolidine-1-carboxamide hydrochloride	分子量：193.67 密度：N/A 沸点：N/A 熔点：N/A	1384429-89-3	C₇H₁₆ClN₃O
5-(Methanesulfonamidomethyl)furan-2-carboxylic acid	5-(Methanesulfonamidomethyl)furan-2-carboxylic acid	分子量：219.22 密度：N/A 沸点：N/A 熔点：N/A	1384429-22-4	C₇H₉NO₅S
(3-Cyano-4-fluorophenyl)-[2-(2,6-dimethylmorpholin-4-yl)-2-oxoethyl]cyanamide	(3-Cyano-4-fluorophenyl)-[2-(2,6-dimethylmorpholin-4-yl)-2-oxoethyl]cyanamide	分子量：316.33 密度：N/A 沸点：N/A 熔点：N/A	1385411-92-6	C₁₆H₁₇FN₄O₂
(3-Cyano-4-fluorophenyl)-[(2-methyl-1,3-thiazol-4-yl)methyl]cyanamide	(3-Cyano-4-fluorophenyl)-[(2-methyl-1,3-thiazol-4-yl)methyl]cyanamide	分子量：272.30 密度：N/A 沸点：N/A 熔点：N/A	1385419-77-1	C₁₃H₉FN₄S
(3-Cyano-4-fluorophenyl)-(3-hydroxypropyl)cyanamide	(3-Cyano-4-fluorophenyl)-(3-hydroxypropyl)cyanamide	分子量：219.21 密度：N/A 沸点：N/A 熔点：N/A	1436061-69-6	C₁₁H₁₀FN₃O
(3-Cyano-4-fluorophenyl)-[(3,5-dimethyl-1,2-oxazol-4-yl)methyl]cyanamide	(3-Cyano-4-fluorophenyl)-[(3,5-dimethyl-1,2-oxazol-4-yl)methyl]cyanamide	分子量：270.26 密度：N/A 沸点：N/A 熔点：N/A	1436166-24-3	C₁₄H₁₁FN₄O
[5-(Thiophen-3-yl)furan-2-yl]methanamine	[5-(Thiophen-3-yl)furan-2-yl]methanamine	分子量：179.24 密度：N/A 沸点：N/A 熔点：N/A	1694054-85-7	C₉H₉NOS
2-(4-Chlorophenyl)-5-(4-fluorophenyl)-1,3-thiazole-4-sulfonyl chloride	2-(4-Chlorophenyl)-5-(4-fluorophenyl)-1,3-thiazole-4-sulfonyl chloride	分子量：388.3 密度：N/A 沸点：N/A 熔点：N/A	1410793-11-1	C₁₅H₈Cl₂FNO₂S₂
2-(Azepan-2-yl)cyclohexan-1-one hydrochloride	2-(Azepan-2-yl)cyclohexan-1-one hydrochloride	分子量：231.76 密度：N/A 沸点：N/A 熔点：N/A	1384429-00-8	C₁₂H₂₂ClNO
(3-Cyano-4-fluorophenyl)-[(5-methyl-1,2,4-oxadiazol-3-yl)methyl]cyanamide	(3-Cyano-4-fluorophenyl)-[(5-methyl-1,2,4-oxadiazol-3-yl)methyl]cyanamide	分子量：257.22 密度：N/A 沸点：N/A 熔点：N/A	1436139-72-8	C₁₂H₈FN₅O
2-(N,3-Dicyano-4-fluoroanilino)-N-(furan-2-ylmethyl)-N-methylacetamide	2-(N,3-Dicyano-4-fluoroanilino)-N-(furan-2-ylmethyl)-N-methylacetamide	分子量：312.30 密度：N/A 沸点：N/A 熔点：N/A	1436114-67-8	C₁₆H₁₃FN₄O₂
2-(2-Thienyl)azetidine Hydrochloride	2-(2-Thienyl)azetidine Hydrochloride	分子量：175.68 密度：N/A 沸点：N/A 熔点：N/A	1346603-95-9	C₇H₁₀ClNS
2-(N,3-Dicyano-4-fluoroanilino)-N-methyl-N-(thiophen-2-ylmethyl)acetamide	2-(N,3-Dicyano-4-fluoroanilino)-N-methyl-N-(thiophen-2-ylmethyl)acetamide	分子量：328.4 密度：N/A 沸点：N/A 熔点：N/A	1436183-85-5	C₁₆H₁₃FN₄OS
(3-Cyano-4-fluorophenyl)-[(1-propyltetrazol-5-yl)methyl]cyanamide	(3-Cyano-4-fluorophenyl)-[(1-propyltetrazol-5-yl)methyl]cyanamide	分子量：285.28 密度：N/A 沸点：N/A 熔点：N/A	1385452-41-4	C₁₃H₁₂FN₇
5-[3-(furan-2-yl)-5-(2-methoxyphenyl)-4,5-dihydro-1H-pyrazol-1-yl]-5-oxopentanoic acid	5-[3-(furan-2-yl)-5-(2-methoxyphenyl)-4,5-dihydro-1H-pyrazol-1-yl]-5-oxopentanoic acid	分子量：356.4 密度：N/A 沸点：N/A 熔点：N/A	1410793-10-0	C₁₉H₂₀N₂O₅
Methyl 2-{[1,3]thiazolo[4,5-c]pyridin-2-yl}acetate	Methyl 2-{[1,3]thiazolo[4,5-c]pyridin-2-yl}acetate	分子量：208.24 密度：N/A 沸点：N/A 熔点：N/A	1507632-76-9	C₉H₈N₂O₂S
2-(Azepan-2-yl)cyclohexan-1-one	2-(Azepan-2-yl)cyclohexan-1-one	分子量：195.30 密度：N/A 沸点：N/A 熔点：N/A	1384510-62-6	C₁₂H₂₁NO
(2-Fluoro-5-methylphenyl)-[[2-(methylsulfonylmethyl)-1,3-thiazol-4-yl]methyl]cyanamide	(2-Fluoro-5-methylphenyl)-[[2-(methylsulfonylmethyl)-1,3-thiazol-4-yl]methyl]cyanamide	分子量：339.4 密度：N/A 沸点：N/A 熔点：N/A	1385274-66-7	C₁₄H₁₄FN₃O₂S₂
(2-Fluoro-5-methylphenyl)-[2-(1,2,4-triazol-1-yl)ethyl]cyanamide	(2-Fluoro-5-methylphenyl)-[2-(1,2,4-triazol-1-yl)ethyl]cyanamide	分子量：245.26 密度：N/A 沸点：N/A 熔点：N/A	1385452-32-3	C₁₂H₁₂FN₅
4-[5-(3-methoxyphenyl)-3-(thiophen-2-yl)-4,5-dihydro-1H-pyrazol-1-yl]-4-oxobutanoic acid	4-[5-(3-methoxyphenyl)-3-(thiophen-2-yl)-4,5-dihydro-1H-pyrazol-1-yl]-4-oxobutanoic acid	分子量：358.4 密度：N/A 沸点：N/A 熔点：N/A	1410792-93-6	C₁₈H₁₈N₂O₄S
(3-Chloro-4-fluorophenyl)-(1,2-oxazol-3-ylmethyl)cyanamide	(3-Chloro-4-fluorophenyl)-(1,2-oxazol-3-ylmethyl)cyanamide	分子量：251.64 密度：N/A 沸点：N/A 熔点：N/A	1436166-13-0	C₁₁H₇ClFN₃O
6-Bromo-2-chloro-8-iodoimidazo[1,2-a]pyridine	6-Bromo-2-chloro-8-iodoimidazo[1,2-a]pyridine	分子量：357.37 密度：N/A 沸点：N/A 熔点：N/A	1421602-45-0	C₇H₃BrClIN₂
2-(1H-imidazol-1-yl)-4-methyl-5-nitroPyridine	2-(1H-imidazol-1-yl)-4-methyl-5-nitroPyridine	分子量：204.19 密度：N/A 沸点：N/A 熔点：N/A	1541130-89-5	C₉H₈N₄O₂
N-[(3-benzyl-1,2,4-oxadiazol-5-yl)methyl]glycinamide	N-[(3-benzyl-1,2,4-oxadiazol-5-yl)methyl]glycinamide	分子量：246.27 密度：N/A 沸点：N/A 熔点：N/A	1352529-16-8	C₁₂H₁₄N₄O₂
4-amino-N-(3-methyl-1,2-oxazol-5-yl)butanamide	4-amino-N-(3-methyl-1,2-oxazol-5-yl)butanamide	分子量：183.21 密度：N/A 沸点：N/A 熔点：N/A	1352490-45-9	C₈H₁₃N₃O₂
2-Methyl-5-phenyl-1,3-oxazole-4-sulfonyl chloride	2-Methyl-5-phenyl-1,3-oxazole-4-sulfonyl chloride	分子量：257.69 密度：N/A 沸点：N/A 熔点：N/A	1427380-74-2	C₁₀H₈ClNO₃S
N-(6-Ethyl-1,3-benzothiazol-2-yl)guanidine	N-(6-Ethyl-1,3-benzothiazol-2-yl)guanidine	分子量：220.30 密度：N/A 沸点：N/A 熔点：N/A	1379811-39-8	C₁₀H₁₂N₄S
N-[amino(imino)methyl]-4-ethylpiperazine-1-carboximidamide	N-[amino(imino)methyl]-4-ethylpiperazine-1-carboximidamide	分子量：198.27 密度：N/A 沸点：N/A 熔点：N/A	203194-74-5	C₈H₁₈N₆