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
1-(Ethanesulfonyl)-2-methoxy-4-nitrobenzene	1-(Ethanesulfonyl)-2-methoxy-4-nitrobenzene	分子量：245.25 密度：N/A 沸点：N/A 熔点：N/A	75259-32-4	C₉H₁₁NO₅S
Boc-2-amino-5-(4-methoxyphenyl)pentanoic acid	Boc-2-amino-5-(4-methoxyphenyl)pentanoic acid	分子量：323.4 密度：N/A 沸点：N/A 熔点：N/A	1822586-51-5	C₁₇H₂₅NO₅
2-(4,5-Dichloro-2-nitrophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	2-(4,5-Dichloro-2-nitrophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	分子量：318.0 密度：N/A 沸点：N/A 熔点：N/A	2377609-11-3	C₁₂H₁₄BCl₂NO₄
5H-Inden-5-one, 3-cyclopropyl-1,3a,4,6,7,7a-hexahydro-	5H-Inden-5-one, 3-cyclopropyl-1,3a,4,6,7,7a-hexahydro-	分子量：176.25 密度：N/A 沸点：N/A 熔点：N/A	1824627-71-5	C₁₂H₁₆O
Propanoic acid--(2R,3S)-3-chlorooxan-2-ol (1/1)	Propanoic acid--(2R,3S)-3-chlorooxan-2-ol (1/1)	分子量：210.65 密度：N/A 沸点：N/A 熔点：N/A	61092-51-1	C₈H₁₅ClO₄
3-bromo-2-chloro-N-(4-cyanooxan-4-yl)benzamide	3-bromo-2-chloro-N-(4-cyanooxan-4-yl)benzamide	分子量：343.60 密度：N/A 沸点：N/A 熔点：N/A	1797633-80-7	C₁₃H₁₂BrClN₂O₂
1-((5-Nitropyridin-2-yl)sulfonyl)piperazine-2-carboxylic acid hydrochloride	1-((5-Nitropyridin-2-yl)sulfonyl)piperazine-2-carboxylic acid hydrochloride	分子量：352.75 密度：N/A 沸点：N/A 熔点：N/A	1420788-48-2	C₁₀H₁₃ClN₄O₆S
(11bR)-2,6-Bis(tert-butyldiphenylsilyl)-4-hydroxydinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepine 4-oxide	(11bR)-2,6-Bis(tert-butyldiphenylsilyl)-4-hydroxydinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepine 4-oxide	分子量：825.1 密度：N/A 沸点：N/A 熔点：N/A	875769-18-9	C₅₂H₄₉O₄PSi₂
3-methyl-4-[(oxolan-2-yl)methyl]-4,5-dihydro-1H-1,2,4-triazol-5-one	3-methyl-4-[(oxolan-2-yl)methyl]-4,5-dihydro-1H-1,2,4-triazol-5-one	分子量：183.21 密度：N/A 沸点：N/A 熔点：N/A	1365477-13-9	C₈H₁₃N₃O₂
1-(Pyrazin-2-ylsulfonyl)piperazine-2-carboxylic acid hydrochloride	1-(Pyrazin-2-ylsulfonyl)piperazine-2-carboxylic acid hydrochloride	分子量：308.74 密度：N/A 沸点：N/A 熔点：N/A	1420788-69-7	C₉H₁₃ClN₄O₄S
2H-Isoindole-2-hexanesulfonic acid, 1,3-dihydro-1,3-dioxo-, sodium salt	2H-Isoindole-2-hexanesulfonic acid, 1,3-dihydro-1,3-dioxo-, sodium salt	分子量：333.34 密度：N/A 沸点：N/A 熔点：N/A	1135201-17-0	C₁₄H₁₆NNaO₅S
(11bR)-2,6-Bis(3,3'',5,5''-tetrakis(trifluoromethyl)-[1,1':3',1''-terphenyl]-5'-yl)-4H-dinaphtho[2,1-d:1',2'-f][1,3,2]dithiazepine 3,3,5,5-tetraoxide	(11bR)-2,6-Bis(3,3'',5,5''-tetrakis(trifluoromethyl)-[1,1':3',1''-terphenyl]-5'-yl)-4H-dinaphtho[2,1-d:1',2'-f][1,3,2]dithiazepine 3,3,5,5-tetraoxide	分子量：1396.0 密度：N/A 沸点：N/A 熔点：N/A	1464815-28-8	C₆₄H₂₉F₂₄NO₄S₂
1-(Pyrimidin-2-ylsulfonyl)piperazine-2-carboxylic acid hydrochloride	1-(Pyrimidin-2-ylsulfonyl)piperazine-2-carboxylic acid hydrochloride	分子量：308.74 密度：N/A 沸点：N/A 熔点：N/A	1420796-13-9	C₉H₁₃ClN₄O₄S
2-[1-(4-Methylpiperazin-1-yl)cyclohexyl]acetic acid dihydrochloride	2-[1-(4-Methylpiperazin-1-yl)cyclohexyl]acetic acid dihydrochloride	分子量：313.3 密度：N/A 沸点：N/A 熔点：N/A	1797943-35-1	C₁₃H₂₆Cl₂N₂O₂
Cyclopentyl(4-(5-(dimethylamino)pyridazin-3-yl)piperazin-1-yl)methanone	Cyclopentyl(4-(5-(dimethylamino)pyridazin-3-yl)piperazin-1-yl)methanone	分子量：303.40 密度：N/A 沸点：N/A 熔点：N/A	1797224-05-5	C₁₆H₂₅N₅O
3-Cyclohexyl-1-(4-(5-(dimethylamino)pyridazin-3-yl)piperazin-1-yl)propan-1-one	3-Cyclohexyl-1-(4-(5-(dimethylamino)pyridazin-3-yl)piperazin-1-yl)propan-1-one	分子量：345.5 密度：N/A 沸点：N/A 熔点：N/A	1448137-42-5	C₁₉H₃₁N₅O
2-Amino-4-bromo-6-tert-butylphenol	2-Amino-4-bromo-6-tert-butylphenol	分子量：244.13 密度：N/A 沸点：N/A 熔点：N/A	1402890-03-2	C₁₀H₁₄BrNO
Benzyl[3-(difluoromethoxy)propyl]amine	Benzyl[3-(difluoromethoxy)propyl]amine	分子量：215.24 密度：N/A 沸点：N/A 熔点：N/A	1593441-93-0	C₁₁H₁₅F₂NO
2-(4-Methylbenzoyl)furan-3-amine	2-(4-Methylbenzoyl)furan-3-amine	分子量：201.22 密度：N/A 沸点：N/A 熔点：N/A	1803592-49-5	C₁₂H₁₁NO₂
(4-(5-(Dimethylamino)pyridazin-3-yl)piperazin-1-yl)(3-methoxyphenyl)methanone	(4-(5-(Dimethylamino)pyridazin-3-yl)piperazin-1-yl)(3-methoxyphenyl)methanone	分子量：341.4 密度：N/A 沸点：N/A 熔点：N/A	1797655-91-4	C₁₈H₂₃N₅O₂
5-methyl-N-(propan-2-yl)-4H-1,2,4-triazol-3-amine	5-methyl-N-(propan-2-yl)-4H-1,2,4-triazol-3-amine	分子量：140.19 密度：N/A 沸点：N/A 熔点：N/A	1803600-04-5	C₆H₁₂N₄
1-((Pyridin-4-ylmethyl)sulfonyl)piperazine-2-carboxylic acid hydrochloride	1-((Pyridin-4-ylmethyl)sulfonyl)piperazine-2-carboxylic acid hydrochloride	分子量：321.78 密度：N/A 沸点：N/A 熔点：N/A	1420788-58-4	C₁₁H₁₆ClN₃O₄S
6-Bromo-2-methyl-1,3-benzothiazole-7-sulfonamide	6-Bromo-2-methyl-1,3-benzothiazole-7-sulfonamide	分子量：307.2 密度：N/A 沸点：N/A 熔点：N/A	1823353-19-0	C₈H₇BrN₂O₂S₂
(R)-2-(pyrrolidin-3-ylamino)pyridin-3-ol hydrochloride	(R)-2-(pyrrolidin-3-ylamino)pyridin-3-ol hydrochloride	分子量：215.68 密度：N/A 沸点：N/A 熔点：N/A	1421018-66-7	C₉H₁₄ClN₃O
2-(3-Bromophenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carboxylic acid	2-(3-Bromophenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carboxylic acid	分子量：312.08 密度：N/A 沸点：N/A 熔点：N/A	113675-95-9	C₁₀H₆BrN₃O₄
(S)-2-(piperidin-3-ylamino)pyridin-3-ol hydrochloride	(S)-2-(piperidin-3-ylamino)pyridin-3-ol hydrochloride	分子量：229.71 密度：N/A 沸点：N/A 熔点：N/A	1421039-70-4	C₁₀H₁₆ClN₃O
2-(3,4-Dihydro-2H-1-benzopyran-4-yl)pyrrolidine hydrochloride	2-(3,4-Dihydro-2H-1-benzopyran-4-yl)pyrrolidine hydrochloride	分子量：239.74 密度：N/A 沸点：N/A 熔点：N/A	1803595-44-9	C₁₃H₁₈ClNO
4-amino-N-(2,2,2-trifluoroethyl)piperidine-1-sulfonamide hydrochloride	4-amino-N-(2,2,2-trifluoroethyl)piperidine-1-sulfonamide hydrochloride	分子量：297.73 密度：N/A 沸点：N/A 熔点：N/A	1797180-12-1	C₇H₁₅ClF₃N₃O₂S
(S)-2-(pyrrolidin-3-ylamino)pyridin-3-ol hydrochloride	(S)-2-(pyrrolidin-3-ylamino)pyridin-3-ol hydrochloride	分子量：215.68 密度：N/A 沸点：N/A 熔点：N/A	1421039-88-4	C₉H₁₄ClN₃O
2-(Pyrrolidin-3-ylamino)pyridin-3-ol hydrochloride	2-(Pyrrolidin-3-ylamino)pyridin-3-ol hydrochloride	分子量：215.68 密度：N/A 沸点：N/A 熔点：N/A	1420960-68-4	C₉H₁₄ClN₃O
2-((Piperidin-3-ylmethyl)amino)pyridin-3-ol hydrochloride	2-((Piperidin-3-ylmethyl)amino)pyridin-3-ol hydrochloride	分子量：243.73 密度：N/A 沸点：N/A 熔点：N/A	1420993-79-8	C₁₁H₁₈ClN₃O
N-(dimethyl-1,2-oxazol-5-yl)propane-1-sulfonamide	N-(dimethyl-1,2-oxazol-5-yl)propane-1-sulfonamide	分子量：218.28 密度：N/A 沸点：N/A 熔点：N/A	1695342-06-3	C₈H₁₄N₂O₃S
2-((Pyrrolidin-3-ylmethyl)amino)pyridin-3-ol hydrochloride	2-((Pyrrolidin-3-ylmethyl)amino)pyridin-3-ol hydrochloride	分子量：229.71 密度：N/A 沸点：N/A 熔点：N/A	1420821-45-9	C₁₀H₁₆ClN₃O
2-(Piperidin-3-yloxy)pyridin-3-ol hydrochloride	2-(Piperidin-3-yloxy)pyridin-3-ol hydrochloride	分子量：230.69 密度：N/A 沸点：N/A 熔点：N/A	1420900-76-0	C₁₀H₁₅ClN₂O₂
3-(Piperidin-4-ylmethyl)-4,5,8,10-tetrazatricyclo[7.3.0.02,6]dodeca-1(12),2,6,8,10-pentaene	3-(Piperidin-4-ylmethyl)-4,5,8,10-tetrazatricyclo[7.3.0.02,6]dodeca-1(12),2,6,8,10-pentaene	分子量：255.32 密度：N/A 沸点：N/A 熔点：N/A	1310723-77-3	C₁₄H₁₇N₅
3-(5-(4-Chlorobenzyl)-1,2,4-oxadiazol-3-YL)morpholine	3-(5-(4-Chlorobenzyl)-1,2,4-oxadiazol-3-YL)morpholine	分子量：279.72 密度：N/A 沸点：N/A 熔点：N/A	1797218-57-5	C₁₃H₁₄ClN₃O₂
2-(Piperidin-4-yloxy)pyridin-3-ol hydrochloride	2-(Piperidin-4-yloxy)pyridin-3-ol hydrochloride	分子量：230.69 密度：N/A 沸点：N/A 熔点：N/A	1420858-38-3	C₁₀H₁₅ClN₂O₂
5-Pyridin-3-yl-4h-1,2,4-triazole-3-thiol-1h-imidazole (1:1)	5-Pyridin-3-yl-4h-1,2,4-triazole-3-thiol-1h-imidazole (1:1)	分子量：246.29 密度：N/A 沸点：N/A 熔点：N/A	1983937-80-9	C₁₀H₁₀N₆S
(3-Phenyl-1-pyrrolidinyl)acetic acid hydrochloride	(3-Phenyl-1-pyrrolidinyl)acetic acid hydrochloride	分子量：241.71 密度：N/A 沸点：N/A 熔点：N/A	1586653-91-9	C₁₂H₁₆ClNO₂
4-(1-Hydrazinylethyl)pyridine dihydrochloride	4-(1-Hydrazinylethyl)pyridine dihydrochloride	分子量：210.10 密度：N/A 沸点：N/A 熔点：N/A	1909305-49-2	C₇H₁₃Cl₂N₃
2-chloro-N,N-diethyl-5-fluoropyrimidin-4-amine hydrochloride	2-chloro-N,N-diethyl-5-fluoropyrimidin-4-amine hydrochloride	分子量：240.10 密度：N/A 沸点：N/A 熔点：N/A	31646-54-5	C₈H₁₂Cl₂FN₃
2-(Pyrrolidin-2-ylmethoxy)pyridin-3-ol hydrochloride	2-(Pyrrolidin-2-ylmethoxy)pyridin-3-ol hydrochloride	分子量：230.69 密度：N/A 沸点：N/A 熔点：N/A	1420808-10-1	C₁₀H₁₅ClN₂O₂
2-(2-(Piperidin-2-yl)ethoxy)pyridin-3-ol hydrochloride	2-(2-(Piperidin-2-yl)ethoxy)pyridin-3-ol hydrochloride	分子量：258.74 密度：N/A 沸点：N/A 熔点：N/A	1420902-13-1	C₁₂H₁₉ClN₂O₂
2-(2-(Piperidin-3-yl)ethoxy)pyridin-3-ol hydrochloride	2-(2-(Piperidin-3-yl)ethoxy)pyridin-3-ol hydrochloride	分子量：258.74 密度：N/A 沸点：N/A 熔点：N/A	1420900-89-5	C₁₂H₁₉ClN₂O₂
Sodium 2-cyclohexyl-1-hydroxyethanesulfonate	Sodium 2-cyclohexyl-1-hydroxyethanesulfonate	分子量：230.26 密度：N/A 沸点：N/A 熔点：N/A	1697697-05-4	C₈H₁₅NaO₄S
Pyrrolidin-3-ylmethanethiol hydrochloride	Pyrrolidin-3-ylmethanethiol hydrochloride	分子量：153.67 密度：N/A 沸点：N/A 熔点：N/A	1420848-39-0	C₅H₁₂ClNS
3-Pyridinecarboxamide,n-[4-(2-furanyl)-5-(4-pyridinyl)-2-thiazolyl]-1,6-dihydro-6-oxo-	3-Pyridinecarboxamide,n-[4-(2-furanyl)-5-(4-pyridinyl)-2-thiazolyl]-1,6-dihydro-6-oxo-	分子量：368.4 密度：N/A 沸点：N/A 熔点：N/A	858974-26-2	C₁₈H₁₆N₄O₃S
5-Pyrrolidin-2-ylisoxazole dihydrochloride	5-Pyrrolidin-2-ylisoxazole dihydrochloride	分子量：211.09 密度：N/A 沸点：N/A 熔点：N/A	1993054-67-3	C₇H₁₂Cl₂N₂O
2,6-Bis[(1,3-dimethyl-1H-pyrazol-4-yl)methylene]-4-methylcyclohexanone	2,6-Bis[(1,3-dimethyl-1H-pyrazol-4-yl)methylene]-4-methylcyclohexanone	分子量：324.4 密度：N/A 沸点：N/A 熔点：N/A	1006333-73-8	C₁₉H₂₄N₄O
N,N-dimethyl-2-(2-piperidin-4-yl-1H-imidazol-1-yl)ethanamine trihydrochloride	N,N-dimethyl-2-(2-piperidin-4-yl-1H-imidazol-1-yl)ethanamine trihydrochloride	分子量：331.7 密度：N/A 沸点：N/A 熔点：N/A	1982950-73-1	C₁₂H₂₅Cl₃N₄