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-chloro-N-(6-chloropyridin-3-yl)acetamide hydrochloride	2-chloro-N-(6-chloropyridin-3-yl)acetamide hydrochloride	分子量：241.5 密度：N/A 沸点：N/A 熔点：N/A	1955524-57-8	C₇H₇Cl₃N₂O
(2-Chloroethyl)(methyl)(prop-2-en-1-yl)amine hydrochloride	(2-Chloroethyl)(methyl)(prop-2-en-1-yl)amine hydrochloride	分子量：170.08 密度：N/A 沸点：N/A 熔点：N/A	857593-13-6	C₆H₁₃Cl₂N
4-[(3R,4S)-4-(Ethoxymethyl)pyrrolidin-3-yl]-1-methylpyrazole;dihydrochloride	4-[(3R,4S)-4-(Ethoxymethyl)pyrrolidin-3-yl]-1-methylpyrazole;dihydrochloride	分子量：282.21 密度：N/A 沸点：N/A 熔点：N/A	1969287-51-1	C₁₁H₂₁Cl₂N₃O
N1-(6-methoxypyridin-2-yl)propane-1,3-diamine dihydrochloride	N1-(6-methoxypyridin-2-yl)propane-1,3-diamine dihydrochloride	分子量：254.15 密度：N/A 沸点：N/A 熔点：N/A	1955498-13-1	C₉H₁₇Cl₂N₃O
5-Chloro-4-methyl-2-(pyrrolidin-3-yl)phenol hydrobromide	5-Chloro-4-methyl-2-(pyrrolidin-3-yl)phenol hydrobromide	分子量：292.60 密度：N/A 沸点：N/A 熔点：N/A	1955531-91-5	C₁₁H₁₅BrClNO
5-Chloro-2-(tetramethyl-1,3,2-dioxaborolan-2-yl)thieno[3,2-b]pyridine	5-Chloro-2-(tetramethyl-1,3,2-dioxaborolan-2-yl)thieno[3,2-b]pyridine	分子量：295.6 密度：N/A 沸点：N/A 熔点：N/A	2941257-77-6	C₁₃H₁₅BClNO₂S
(2S,3R)-2-(1,3-Dimethylpyrazol-4-yl)oxolan-3-amine;dihydrochloride	(2S,3R)-2-(1,3-Dimethylpyrazol-4-yl)oxolan-3-amine;dihydrochloride	分子量：254.15 密度：N/A 沸点：N/A 熔点：N/A	1969288-54-7	C₉H₁₇Cl₂N₃O
(3AR,6aS)-3a,6a-dimethyl-hexahydro-1H-furo[3,4-c]pyrrole hydrochloride	(3AR,6aS)-3a,6a-dimethyl-hexahydro-1H-furo[3,4-c]pyrrole hydrochloride	分子量：177.67 密度：N/A 沸点：N/A 熔点：N/A	2095349-68-9	C₈H₁₆ClNO
7-(Propan-2-yl)-1,2,3,4-tetrahydroisoquinoline hydrochloride	7-(Propan-2-yl)-1,2,3,4-tetrahydroisoquinoline hydrochloride	分子量：211.73 密度：N/A 沸点：N/A 熔点：N/A	1955547-43-9	C₁₂H₁₈ClN
2,2-Difluoro-2-(2-methylphenyl)ethan-1-amine hydrochloride	2,2-Difluoro-2-(2-methylphenyl)ethan-1-amine hydrochloride	分子量：207.65 密度：N/A 沸点：N/A 熔点：N/A	1955547-60-0	C₉H₁₂ClF₂N
Methyl 3-hydrazinyl-2-methylbenzoate hydrochloride	Methyl 3-hydrazinyl-2-methylbenzoate hydrochloride	分子量：216.66 密度：N/A 沸点：N/A 熔点：N/A	1955540-35-8	C₉H₁₃ClN₂O₂
4-Hydroxy-2-methylpyrrolidine-2-carboxylic acid hydrochloride	4-Hydroxy-2-methylpyrrolidine-2-carboxylic acid hydrochloride	分子量：181.62 密度：N/A 沸点：N/A 熔点：N/A	1955493-30-7	C₆H₁₂ClNO₃
(1-ethyl-1H-1,2,3-triazol-4-yl)methanamine hydrochloride	(1-ethyl-1H-1,2,3-triazol-4-yl)methanamine hydrochloride	分子量：162.62 密度：N/A 沸点：N/A 熔点：N/A	1955548-17-0	C₅H₁₁ClN₄
(2S,3R)-2-(1-(2-Methoxyethyl)-1H-pyrazol-4-yl)tetrahydrofuran-3-amine dihydrochloride	(2S,3R)-2-(1-(2-Methoxyethyl)-1H-pyrazol-4-yl)tetrahydrofuran-3-amine dihydrochloride	分子量：284.18 密度：N/A 沸点：N/A 熔点：N/A	1955540-42-7	C₁₀H₁₉Cl₂N₃O₂
4-[4-(Aminomethyl)phenyl]-1lambda6-thiomorpholine-1,1-dione hydrochloride	4-[4-(Aminomethyl)phenyl]-1lambda6-thiomorpholine-1,1-dione hydrochloride	分子量：276.78 密度：N/A 沸点：N/A 熔点：N/A	1955539-88-4	C₁₁H₁₇ClN₂O₂S
1-Amino-3-phenylcyclobutane-1-carboxylic acid hydrochloride	1-Amino-3-phenylcyclobutane-1-carboxylic acid hydrochloride	分子量：227.69 密度：N/A 沸点：N/A 熔点：N/A	91132-90-0	C₁₁H₁₄ClNO₂
5-Amino-2-methyl-1lambda6-thiane-1,1-dione hydrochloride	5-Amino-2-methyl-1lambda6-thiane-1,1-dione hydrochloride	分子量：199.70 密度：N/A 沸点：N/A 熔点：N/A	1955539-97-5	C₆H₁₄ClNO₂S
3-Fluoro-4-hydrazinylpyridine dihydrochloride	3-Fluoro-4-hydrazinylpyridine dihydrochloride	分子量：200.04 密度：N/A 沸点：N/A 熔点：N/A	1955506-84-9	C₅H₈Cl₂FN₃
2-[(5-Chloropyridin-2-yl)(methyl)amino]acetic acid hydrochloride	2-[(5-Chloropyridin-2-yl)(methyl)amino]acetic acid hydrochloride	分子量：237.08 密度：N/A 沸点：N/A 熔点：N/A	1955540-03-0	C₈H₁₀Cl₂N₂O₂
1-[2-(trifluoromethyl)phenyl]-1H-1,2,3-triazol-4-amine hydrochloride	1-[2-(trifluoromethyl)phenyl]-1H-1,2,3-triazol-4-amine hydrochloride	分子量：264.63 密度：N/A 沸点：N/A 熔点：N/A	1955498-27-7	C₉H₈ClF₃N₄
3-Fluoro-2-iodo-4-methoxyaniline hydrochloride	3-Fluoro-2-iodo-4-methoxyaniline hydrochloride	分子量：303.50 密度：N/A 沸点：N/A 熔点：N/A	1955540-52-9	C₇H₈ClFINO
Methyl (2R,3S)-3-aminotetrahydrofuran-2-carboxylate hydrochloride	Methyl (2R,3S)-3-aminotetrahydrofuran-2-carboxylate hydrochloride	分子量：181.62 密度：N/A 沸点：N/A 熔点：N/A	1955498-41-5	C₆H₁₂ClNO₃
1-(Fluoromethyl)-2-azabicyclo[2.1.1]hexane hydrochloride	1-(Fluoromethyl)-2-azabicyclo[2.1.1]hexane hydrochloride	分子量：151.61 密度：N/A 沸点：N/A 熔点：N/A	1955507-12-6	C₆H₁₁ClFN
2-(2-Iodohexyl)-2-prop-2-ynylpropanedinitrile	2-(2-Iodohexyl)-2-prop-2-ynylpropanedinitrile	分子量：314.17 密度：N/A 沸点：N/A 熔点：N/A	141493-89-2	C₁₂H₁₅IN₂
1-benzyl-4-ethenyl-1H-pyrazole	1-benzyl-4-ethenyl-1H-pyrazole	分子量：184.24 密度：N/A 沸点：N/A 熔点：N/A	1235542-25-2	C₁₂H₁₂N₂
2-[[(1-Ethyl-4-methylpyrazol-3-yl)amino]methyl]phenol;hydrochloride	2-[[(1-Ethyl-4-methylpyrazol-3-yl)amino]methyl]phenol;hydrochloride	分子量：267.75 密度：N/A 沸点：N/A 熔点：N/A	1856094-55-7	C₁₃H₁₈ClN₃O
4-benzyl-5'-phenyl-2H,2'H,4H-spiro[benzo[b][1,4]oxazine-3,3'-furan]	4-benzyl-5'-phenyl-2H,2'H,4H-spiro[benzo[b][1,4]oxazine-3,3'-furan]	分子量：355.4 密度：N/A 沸点：N/A 熔点：N/A	1799616-63-9	C₂₄H₂₁NO₂
6,8-Dibromoisoquinoline	6,8-Dibromoisoquinoline	分子量：286.95 密度：N/A 沸点：N/A 熔点：N/A	2059999-79-8	C₉H₅Br₂N
Ethyl 5-bromo-3-cyano-2-(difluoromethyl)benzoate	Ethyl 5-bromo-3-cyano-2-(difluoromethyl)benzoate	分子量：304.09 密度：N/A 沸点：N/A 熔点：N/A	1805593-97-8	C₁₁H₈BrF₂NO₂
1-(2-aminoethyl)-3-cyclopropyl-1H-pyrazol-5-amine	1-(2-aminoethyl)-3-cyclopropyl-1H-pyrazol-5-amine	分子量：166.22 密度：N/A 沸点：N/A 熔点：N/A	2097987-34-1	C₈H₁₄N₄
3-(tert-butyl)-1-(piperidin-3-yl)-1H-pyrazol-5-amine	3-(tert-butyl)-1-(piperidin-3-yl)-1H-pyrazol-5-amine	分子量：222.33 密度：N/A 沸点：N/A 熔点：N/A	2098139-19-4	C₁₂H₂₂N₄
1-Fluoro-2-methyl-4-nitro-5-(propan-2-yloxy)benzene	1-Fluoro-2-methyl-4-nitro-5-(propan-2-yloxy)benzene	分子量：213.21 密度：N/A 沸点：N/A 熔点：N/A	1394957-34-6	C₁₀H₁₂FNO₃
2-[3-(Difluoromethyl)azetidin-1-yl]ethan-1-ol	2-[3-(Difluoromethyl)azetidin-1-yl]ethan-1-ol	分子量：151.15 密度：N/A 沸点：N/A 熔点：N/A	2166555-84-4	C₆H₁₁F₂NO
2-[(cyanomethyl)sulfanyl]-N-[1-(4-fluorophenyl)-2-oxoazetidin-3-yl]acetamide	2-[(cyanomethyl)sulfanyl]-N-[1-(4-fluorophenyl)-2-oxoazetidin-3-yl]acetamide	分子量：293.32 密度：N/A 沸点：N/A 熔点：N/A	2093496-95-6	C₁₃H₁₂FN₃O₂S
2-Chloro-1-(propan-2-yloxy)-4-(trifluoromethyl)benzene	2-Chloro-1-(propan-2-yloxy)-4-(trifluoromethyl)benzene	分子量：238.63 密度：N/A 沸点：N/A 熔点：N/A	1369830-55-6	C₁₀H₁₀ClF₃O
4-methyl-N-{[1-(pyridin-3-yl)-1H-1,2,3-triazol-4-yl]methyl}-1,3-thiazole-5-carboxamide	4-methyl-N-{[1-(pyridin-3-yl)-1H-1,2,3-triazol-4-yl]methyl}-1,3-thiazole-5-carboxamide	分子量：300.34 密度：N/A 沸点：N/A 熔点：N/A	2034301-49-8	C₁₃H₁₂N₆OS
3-[[(1,5-Dimethylpyrazol-4-yl)amino]methyl]phenol;hydrochloride	3-[[(1,5-Dimethylpyrazol-4-yl)amino]methyl]phenol;hydrochloride	分子量：253.73 密度：N/A 沸点：N/A 熔点：N/A	1856034-59-7	C₁₂H₁₆ClN₃O
2-(((1-Ethyl-1H-pyrazol-5-yl)methyl)amino)ethan-1-ol hydrochloride	2-(((1-Ethyl-1H-pyrazol-5-yl)methyl)amino)ethan-1-ol hydrochloride	分子量：205.68 密度：N/A 沸点：N/A 熔点：N/A	1856076-52-2	C₈H₁₆ClN₃O
1-(difluoromethyl)-3-methyl-N-pentylpyrazol-4-amine;hydrochloride	1-(difluoromethyl)-3-methyl-N-pentylpyrazol-4-amine;hydrochloride	分子量：253.72 密度：N/A 沸点：N/A 熔点：N/A	1856047-39-6	C₁₀H₁₈ClF₂N₃
N-benzyl-1-ethyl-5-methylpyrazol-4-amine;hydrochloride	N-benzyl-1-ethyl-5-methylpyrazol-4-amine;hydrochloride	分子量：251.75 密度：N/A 沸点：N/A 熔点：N/A	1856058-68-8	C₁₃H₁₈ClN₃
1,3-dimethyl-N-(2-phenylethyl)pyrazol-4-amine;hydrochloride	1,3-dimethyl-N-(2-phenylethyl)pyrazol-4-amine;hydrochloride	分子量：251.75 密度：N/A 沸点：N/A 熔点：N/A	1856034-97-3	C₁₃H₁₈ClN₃
N-(2-Furylmethyl)-1-methyl-1H-pyrazol-4-amine	N-(2-Furylmethyl)-1-methyl-1H-pyrazol-4-amine	分子量：213.66 密度：N/A 沸点：N/A 熔点：N/A	1856028-55-1	C₉H₁₂ClN₃O
2-[[(3-Methoxy-1-methylpyrazol-4-yl)amino]methyl]phenol;hydrochloride	2-[[(3-Methoxy-1-methylpyrazol-4-yl)amino]methyl]phenol;hydrochloride	分子量：269.73 密度：N/A 沸点：N/A 熔点：N/A	1856021-60-7	C₁₂H₁₆ClN₃O₂
8-Fluoro-1-methylisoquinoline-6-sulfonyl chloride	8-Fluoro-1-methylisoquinoline-6-sulfonyl chloride	分子量：259.68 密度：N/A 沸点：N/A 熔点：N/A	2060029-03-8	C₁₀H₇ClFNO₂S
3-Amino-3-(2,6-difluorophenyl)cyclobutan-1-ol	3-Amino-3-(2,6-difluorophenyl)cyclobutan-1-ol	分子量：199.20 密度：N/A 沸点：N/A 熔点：N/A	2059915-00-1	C₁₀H₁₁F₂NO
5-tert-Butyl-1-(2-nitrophenyl)-1H-1,2,4-triazole-3-carboxylic acid	5-tert-Butyl-1-(2-nitrophenyl)-1H-1,2,4-triazole-3-carboxylic acid	分子量：290.27 密度：N/A 沸点：N/A 熔点：N/A	2059934-73-3	C₁₃H₁₄N₄O₄
tert-Butyl N-[4-(carbamoylmethyl)-3-fluorophenyl]carbamate	tert-Butyl N-[4-(carbamoylmethyl)-3-fluorophenyl]carbamate	分子量：268.28 密度：N/A 沸点：N/A 熔点：N/A	2059988-54-2	C₁₃H₁₇FN₂O₃
6-(4-Carboxyphenyl)-[1,2,4]triazolo[1,5-a]pyridine-8-carboxylic acid	6-(4-Carboxyphenyl)-[1,2,4]triazolo[1,5-a]pyridine-8-carboxylic acid	分子量：283.24 密度：N/A 沸点：N/A 熔点：N/A	2059948-01-3	C₁₄H₉N₃O₄
4-Fluoro-1-(propan-2-yl)-1H-imidazo[4,5-c]pyridine	4-Fluoro-1-(propan-2-yl)-1H-imidazo[4,5-c]pyridine	分子量：179.19 密度：N/A 沸点：N/A 熔点：N/A	2060027-88-3	C₉H₁₀FN₃
(2S,4R)-2-(azidomethyl)-4-(2-fluorophenyl)oxolane	(2S,4R)-2-(azidomethyl)-4-(2-fluorophenyl)oxolane	分子量：221.23 密度：N/A 沸点：N/A 熔点：N/A	2059911-42-9	C₁₁H₁₂FN₃O