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
8-Morpholino-3-phenylimidazo[1,2-b]pyridazine-2-carbaldehyde	8-Morpholino-3-phenylimidazo[1,2-b]pyridazine-2-carbaldehyde	分子量：308.33 密度：N/A 沸点：N/A 熔点：N/A	1639893-26-7	C₁₇H₁₆N₄O₂
4-(Thian-3-yl)-1,3-oxazolidin-2-one	4-(Thian-3-yl)-1,3-oxazolidin-2-one	分子量：187.26 密度：N/A 沸点：N/A 熔点：N/A	1851650-22-0	C₈H₁₃NO₂S
4-(2-Formyl-8-morpholinoimidazo[1,2-b]pyridazin-3-yl)benzonitrile	4-(2-Formyl-8-morpholinoimidazo[1,2-b]pyridazin-3-yl)benzonitrile	分子量：333.3 密度：N/A 沸点：N/A 熔点：N/A	1639893-27-8	C₁₈H₁₅N₅O₂
4-[(1-Methylpyrrolidin-2-yl)methyl]-1,3-oxazolidin-2-one	4-[(1-Methylpyrrolidin-2-yl)methyl]-1,3-oxazolidin-2-one	分子量：184.24 密度：N/A 沸点：N/A 熔点：N/A	1888619-77-9	C₉H₁₆N₂O₂
4-(5-Methylfuran-2-yl)-1,3-oxazolidin-2-one	4-(5-Methylfuran-2-yl)-1,3-oxazolidin-2-one	分子量：167.16 密度：N/A 沸点：N/A 熔点：N/A	1823512-95-3	C₈H₉NO₃
2-[2-[8-(4-Morpholinyl)imidazo[1,2-b]pyridazin-2-yl]cyclopropyl]quinoline	2-[2-[8-(4-Morpholinyl)imidazo[1,2-b]pyridazin-2-yl]cyclopropyl]quinoline	分子量：371.4 密度：N/A 沸点：N/A 熔点：N/A	1639891-17-0	C₂₂H₂₁N₅O
2-[2-[8-(4-Morpholinyl)imidazo[1,2-b]pyridazin-2-yl]ethynyl]quinoline	2-[2-[8-(4-Morpholinyl)imidazo[1,2-b]pyridazin-2-yl]ethynyl]quinoline	分子量：355.4 密度：N/A 沸点：N/A 熔点：N/A	1639890-42-8	C₂₁H₁₇N₅O
2-[2-[3-Bromo-8-(4-morpholinyl)imidazo[1,2-b]pyridazin-2-yl]ethyl]quinoline	2-[2-[3-Bromo-8-(4-morpholinyl)imidazo[1,2-b]pyridazin-2-yl]ethyl]quinoline	分子量：438.3 密度：N/A 沸点：N/A 熔点：N/A	1639892-73-1	C₂₁H₂₀BrN₅O
6-Fluoro-3-[1-(4-methyl-1,3-thiazol-2-yl)piperidin-4-yl]-1,2-benzoxazole	6-Fluoro-3-[1-(4-methyl-1,3-thiazol-2-yl)piperidin-4-yl]-1,2-benzoxazole	分子量：317.4 密度：N/A 沸点：N/A 熔点：N/A	2741921-62-8	C₁₆H₁₆FN₃OS
(3-Bromo-8-morpholinoimidazo[1,2-b]pyridazin-2-yl)methanol	(3-Bromo-8-morpholinoimidazo[1,2-b]pyridazin-2-yl)methanol	分子量：313.15 密度：N/A 沸点：N/A 熔点：N/A	1639891-98-7	C₁₁H₁₃BrN₄O₂
Ethyl 8-morpholinoimidazo[1,2-b]pyridazine-2-carboxylate	Ethyl 8-morpholinoimidazo[1,2-b]pyridazine-2-carboxylate	分子量：276.29 密度：N/A 沸点：N/A 熔点：N/A	1639891-85-2	C₁₃H₁₆N₄O₃
(8-Morpholinoimidazo[1,2-b]pyridazin-2-yl)methanol	(8-Morpholinoimidazo[1,2-b]pyridazin-2-yl)methanol	分子量：234.25 密度：N/A 沸点：N/A 熔点：N/A	1639891-86-3	C₁₁H₁₄N₄O₂
3-Bromo-8-morpholinoimidazo[1,2-b]pyridazine-2-carbaldehyde	3-Bromo-8-morpholinoimidazo[1,2-b]pyridazine-2-carbaldehyde	分子量：311.13 密度：N/A 沸点：N/A 熔点：N/A	1639891-99-8	C₁₁H₁₁BrN₄O₂
6-[2-(Dimethylamino)ethyl]morpholin-3-one	6-[2-(Dimethylamino)ethyl]morpholin-3-one	分子量：172.22 密度：N/A 沸点：N/A 熔点：N/A	1891116-34-9	C₈H₁₆N₂O₂
3-(3H-[1,2,3]Triazolo[4,5-b]pyridin-3-yl)tetrahydrothiophene 1,1-dioxide	3-(3H-[1,2,3]Triazolo[4,5-b]pyridin-3-yl)tetrahydrothiophene 1,1-dioxide	分子量：238.27 密度：N/A 沸点：N/A 熔点：N/A	1893733-18-0	C₉H₁₀N₄O₂S
4-(3H-[1,2,3]Triazolo[4,5-b]pyridin-3-yl)tetrahydro-2H-thiopyran 1,1-dioxide	4-(3H-[1,2,3]Triazolo[4,5-b]pyridin-3-yl)tetrahydro-2H-thiopyran 1,1-dioxide	分子量：252.30 密度：N/A 沸点：N/A 熔点：N/A	1893906-37-0	C₁₀H₁₂N₄O₂S
3-((3H-[1,2,3]Triazolo[4,5-b]pyridin-3-yl)methyl)tetrahydrothiophene 1,1-dioxide	3-((3H-[1,2,3]Triazolo[4,5-b]pyridin-3-yl)methyl)tetrahydrothiophene 1,1-dioxide	分子量：252.30 密度：N/A 沸点：N/A 熔点：N/A	1890587-25-3	C₁₀H₁₂N₄O₂S
3-(3H-[1,2,3]Triazolo[4,5-b]pyridin-3-yl)tetrahydro-2H-thiopyran 1,1-dioxide	3-(3H-[1,2,3]Triazolo[4,5-b]pyridin-3-yl)tetrahydro-2H-thiopyran 1,1-dioxide	分子量：252.30 密度：N/A 沸点：N/A 熔点：N/A	1896679-79-0	C₁₀H₁₂N₄O₂S
2-(3H-[1,2,3]Triazolo[4,5-b]pyridin-3-yl)tetrahydrothiophene 1,1-dioxide	2-(3H-[1,2,3]Triazolo[4,5-b]pyridin-3-yl)tetrahydrothiophene 1,1-dioxide	分子量：238.27 密度：N/A 沸点：N/A 熔点：N/A	1893593-55-9	C₉H₁₀N₄O₂S
2-(3H-[1,2,3]Triazolo[4,5-b]pyridin-3-yl)tetrahydro-2H-thiopyran 1,1-dioxide	2-(3H-[1,2,3]Triazolo[4,5-b]pyridin-3-yl)tetrahydro-2H-thiopyran 1,1-dioxide	分子量：252.30 密度：N/A 沸点：N/A 熔点：N/A	1893244-20-6	C₁₀H₁₂N₄O₂S
4-(4-Bromobenzyloxy)-1-isopropyl-1H-pyrazole	4-(4-Bromobenzyloxy)-1-isopropyl-1H-pyrazole	分子量：295.17 密度：N/A 沸点：N/A 熔点：N/A	1712366-97-6	C₁₃H₁₅BrN₂O
Tert-butyl 6-chloro-1-methyl-2,4-dioxopyrrolo[2,3-d]pyrimidine-7-carboxylate	Tert-butyl 6-chloro-1-methyl-2,4-dioxopyrrolo[2,3-d]pyrimidine-7-carboxylate	分子量：299.71 密度：N/A 沸点：N/A 熔点：N/A	1396738-61-6	C₁₂H₁₄ClN₃O₄
1-(Thiophen-3-yl)ethane-1-sulfonamide	1-(Thiophen-3-yl)ethane-1-sulfonamide	分子量：191.3 密度：N/A 沸点：N/A 熔点：N/A	1249677-37-9	C₆H₉NO₂S₂
Peliglitazar metabolite M7	Peliglitazar metabolite M7	分子量：532.5 密度：N/A 沸点：N/A 熔点：N/A	1807608-02-1	C₂₉H₂₈N₂O₈
6-[(3-Amino-1H-pyrazol-1-yl)methyl]-2-chloro-3-pyridinecarbonitrile	6-[(3-Amino-1H-pyrazol-1-yl)methyl]-2-chloro-3-pyridinecarbonitrile	分子量：233.66 密度：N/A 沸点：N/A 熔点：N/A	1838653-62-5	C₁₀H₈ClN₅
[3-(Pyridin-2-yl)pyrrolidin-3-yl]methanol	[3-(Pyridin-2-yl)pyrrolidin-3-yl]methanol	分子量：178.23 密度：N/A 沸点：N/A 熔点：N/A	1903334-15-5	C₁₀H₁₄N₂O
tert-Butyl 6-fluoro-2-phenyl-1H-indole-1-carboxylate	tert-Butyl 6-fluoro-2-phenyl-1H-indole-1-carboxylate	分子量：311.3 密度：N/A 沸点：N/A 熔点：N/A	1647124-91-1	C₁₉H₁₈FNO₂
tert-Butyl 2-(4-bromophenyl)-1H-indole-1-carboxylate	tert-Butyl 2-(4-bromophenyl)-1H-indole-1-carboxylate	分子量：372.3 密度：N/A 沸点：N/A 熔点：N/A	1647124-81-9	C₁₉H₁₈BrNO₂
[1-Methyl-3-(propan-2-yl)pyrrolidin-3-yl]methanol	[1-Methyl-3-(propan-2-yl)pyrrolidin-3-yl]methanol	分子量：157.25 密度：N/A 沸点：N/A 熔点：N/A	1851819-56-1	C₉H₁₉NO
tert-Butyl 6-methyl-2-phenyl-1H-indole-1-carboxylate	tert-Butyl 6-methyl-2-phenyl-1H-indole-1-carboxylate	分子量：307.4 密度：N/A 沸点：N/A 熔点：N/A	1647124-95-5	C₂₀H₂₁NO₂
1,3-Dioxolan-2-one, 4,4'-(1,4-phenylene)bis[4-methyl-5-methylene-	1,3-Dioxolan-2-one, 4,4'-(1,4-phenylene)bis[4-methyl-5-methylene-	分子量：302.28 密度：N/A 沸点：N/A 熔点：N/A	1818247-05-0	C₁₆H₁₄O₆
1-(4-Bromo-3-methylphenyl)sulfonyl-3-methylpyrrolidin-3-ol	1-(4-Bromo-3-methylphenyl)sulfonyl-3-methylpyrrolidin-3-ol	分子量：334.23 密度：N/A 沸点：N/A 熔点：N/A	1992891-19-6	C₁₂H₁₆BrNO₃S
Triphenyl(2-(2-(1-phenylethylidene)hydrazinyl)prop-1-en-1-yl)phosphonium bromide	Triphenyl(2-(2-(1-phenylethylidene)hydrazinyl)prop-1-en-1-yl)phosphonium bromide	分子量：515.4 密度：N/A 沸点：N/A 熔点：N/A	87101-40-4	C₂₉H₂₈BrN₂P
4-Bromo-3-cyano-6-(difluoromethyl)pyridine-2-sulfonyl chloride	4-Bromo-3-cyano-6-(difluoromethyl)pyridine-2-sulfonyl chloride	分子量：331.52 密度：N/A 沸点：N/A 熔点：N/A	1806991-76-3	C₇H₂BrClF₂N₂O₂S
4-Cyano-3-(difluoromethyl)-2-iodo-5-(trifluoromethyl)pyridine	4-Cyano-3-(difluoromethyl)-2-iodo-5-(trifluoromethyl)pyridine	分子量：348.01 密度：N/A 沸点：N/A 熔点：N/A	1805379-81-0	C₈H₂F₅IN₂
3-(3-Chloroquinoxalin-2-yl)morpholine	3-(3-Chloroquinoxalin-2-yl)morpholine	分子量：249.69 密度：N/A 沸点：N/A 熔点：N/A	2733512-10-0	C₁₂H₁₂ClN₃O
(1-methyl-3-(piperidin-3-yl)-1H-pyrazol-5-yl)methanol	(1-methyl-3-(piperidin-3-yl)-1H-pyrazol-5-yl)methanol	分子量：195.26 密度：N/A 沸点：N/A 熔点：N/A	1888854-23-6	C₁₀H₁₇N₃O
tert-butyl 4-(4-chloro-3-iodo-1H-pyrrolo[2,3-b]pyridin-2-yl)piperidine-1-carboxylate	tert-butyl 4-(4-chloro-3-iodo-1H-pyrrolo[2,3-b]pyridin-2-yl)piperidine-1-carboxylate	分子量：461.7 密度：N/A 沸点：N/A 熔点：N/A	1628501-26-7	C₁₇H₂₁ClIN₃O₂
4-Chloro-2-iodo-5-methyl-1-[(4-methylphenyl)sulfonyl]-1H-pyrrolo[2,3-b]pyridine	4-Chloro-2-iodo-5-methyl-1-[(4-methylphenyl)sulfonyl]-1H-pyrrolo[2,3-b]pyridine	分子量：446.7 密度：N/A 沸点：N/A 熔点：N/A	1628499-72-8	C₁₅H₁₂ClIN₂O₂S
2-(3-Fluorophenyl)-5-methylthiazole-4-carboxylic acid ethyl ester	2-(3-Fluorophenyl)-5-methylthiazole-4-carboxylic acid ethyl ester	分子量：265.31 密度：N/A 沸点：N/A 熔点：N/A	1770676-43-1	C₁₃H₁₂FNO₂S
5-Methyl-2-p-tolyl-thiazole-4-carboxylic acid ethyl ester	5-Methyl-2-p-tolyl-thiazole-4-carboxylic acid ethyl ester	分子量：261.34 密度：N/A 沸点：N/A 熔点：N/A	1770676-44-2	C₁₄H₁₅NO₂S
2-(4-Fluorophenyl)-5-methylthiazole-4-carboxylic acid ethyl ester	2-(4-Fluorophenyl)-5-methylthiazole-4-carboxylic acid ethyl ester	分子量：265.31 密度：N/A 沸点：N/A 熔点：N/A	1774291-52-9	C₁₃H₁₂FNO₂S
6-(Trifluoromethyl)-1,4-oxazepan-6-ol	6-(Trifluoromethyl)-1,4-oxazepan-6-ol	分子量：185.14 密度：N/A 沸点：N/A 熔点：N/A	1824048-41-0	C₆H₁₀F₃NO₂
(5-Ethoxycarbonylpyridin-2-yl)boronic acid	(5-Ethoxycarbonylpyridin-2-yl)boronic acid	分子量：194.98 密度：N/A 沸点：N/A 熔点：N/A	1394897-47-2	C₈H₁₀BNO₄
[6-(Trifluoromethyl)-1,8-naphthyridin-2-yl]boronic acid	[6-(Trifluoromethyl)-1,8-naphthyridin-2-yl]boronic acid	分子量：241.96 密度：N/A 沸点：N/A 熔点：N/A	1445779-93-0	C₉H₆BF₃N₂O₂
4-Hydroxyquinoline-8-acetonitrile	4-Hydroxyquinoline-8-acetonitrile	分子量：184.19 密度：N/A 沸点：N/A 熔点：N/A	1261784-08-0	C₁₁H₈N₂O
(4,4-Difluoro-2-methylpyrrolidin-2-yl)methanol hydrochloride	(4,4-Difluoro-2-methylpyrrolidin-2-yl)methanol hydrochloride	分子量：187.61 密度：N/A 沸点：N/A 熔点：N/A	1823319-70-5	C₆H₁₂ClF₂NO
(2-amino-4-bromophenyl)(2,3-dimethylphenyl)Methanone	(2-amino-4-bromophenyl)(2,3-dimethylphenyl)Methanone	分子量：304.18 密度：N/A 沸点：N/A 熔点：N/A	1772355-02-8	C₁₅H₁₄BrNO
Methyl (2S,4S)-4-hydroxy-4-(trifluoromethyl)pyrrolidine-2-carboxylate	Methyl (2S,4S)-4-hydroxy-4-(trifluoromethyl)pyrrolidine-2-carboxylate	分子量：213.15 密度：N/A 沸点：N/A 熔点：N/A	1932344-40-5	C₇H₁₀F₃NO₃
1,3-Dihydro-1-(2,3,4,5,6-pentafluorophenyl)-2H-imidazole-2-thione	1,3-Dihydro-1-(2,3,4,5,6-pentafluorophenyl)-2H-imidazole-2-thione	分子量：266.19 密度：N/A 沸点：N/A 熔点：N/A	25372-12-7	C₉H₃F₅N₂S