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-phenyl-4-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridine-7-carbonyl}-2H-1,2,3-triazole	2-phenyl-4-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridine-7-carbonyl}-2H-1,2,3-triazole	分子量：356.4 密度：N/A 沸点：N/A 熔点：N/A	2742038-44-2	C₂₀H₁₆N₆O
2-{3-[(2-ethyl-1H-imidazol-1-yl)methyl]azetidin-1-yl}-3-methyl-3H,4H-thieno[3,2-d]pyrimidin-4-one	2-{3-[(2-ethyl-1H-imidazol-1-yl)methyl]azetidin-1-yl}-3-methyl-3H,4H-thieno[3,2-d]pyrimidin-4-one	分子量：329.4 密度：N/A 沸点：N/A 熔点：N/A	2742005-99-6	C₁₆H₁₉N₅OS
2-[3-({Imidazo[1,2-b]pyridazin-6-yloxy}methyl)pyrrolidin-1-yl]-4,5-dimethyl-1,3-benzothiazole	2-[3-({Imidazo[1,2-b]pyridazin-6-yloxy}methyl)pyrrolidin-1-yl]-4,5-dimethyl-1,3-benzothiazole	分子量：379.5 密度：N/A 沸点：N/A 熔点：N/A	2741939-51-3	C₂₀H₂₁N₅OS
4-(5-ethyl-1,3,4-thiadiazol-2-yl)-1-{3-phenyl-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl}piperidine	4-(5-ethyl-1,3,4-thiadiazol-2-yl)-1-{3-phenyl-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl}piperidine	分子量：392.5 密度：N/A 沸点：N/A 熔点：N/A	2742012-06-0	C₁₉H₂₀N₈S
4-Fluoro-1-naphthol F-18	4-Fluoro-1-naphthol F-18	分子量：161.16 密度：N/A 沸点：N/A 熔点：N/A	2507735-84-2	C₁₀H₇FO
PW5HS7KW4Q	PW5HS7KW4Q	分子量：291.3 密度：N/A 沸点：N/A 熔点：N/A	60692-64-0	C₁₉H₁₇NO₂
6-(2,4-dimethyl-1,3-thiazol-5-yl)-2-[(1-{1H-pyrazolo[3,4-d]pyrimidin-4-yl}piperidin-4-yl)methyl]-2,3-dihydropyridazin-3-one	6-(2,4-dimethyl-1,3-thiazol-5-yl)-2-[(1-{1H-pyrazolo[3,4-d]pyrimidin-4-yl}piperidin-4-yl)methyl]-2,3-dihydropyridazin-3-one	分子量：422.5 密度：N/A 沸点：N/A 熔点：N/A	2742046-15-5	C₂₀H₂₂N₈OS
16-(2-Pyridinoylhydrazono)-ent-beyeran-19-oic acid	16-(2-Pyridinoylhydrazono)-ent-beyeran-19-oic acid	分子量：437.6 密度：N/A 沸点：N/A 熔点：N/A	1334421-49-6	C₂₆H₃₅N₃O₃
DE(hydroxymethyl) ipratropium	DE(hydroxymethyl) ipratropium	分子量：302.4 密度：N/A 沸点：N/A 熔点：N/A	736876-24-7	C₁₉H₂₈NO₂+
V4FT4F9RC2	V4FT4F9RC2	分子量：410.5 密度：N/A 沸点：N/A 熔点：N/A	805958-08-1	C₂₂H₂₆N₄O₄
7-Chloro-2-(4-{imidazo[1,2-b]pyridazin-6-yl}-1,4-diazepan-1-yl)-4-methoxy-1,3-benzothiazole	7-Chloro-2-(4-{imidazo[1,2-b]pyridazin-6-yl}-1,4-diazepan-1-yl)-4-methoxy-1,3-benzothiazole	分子量：414.9 密度：N/A 沸点：N/A 熔点：N/A	2742035-80-7	C₁₉H₁₉ClN₆OS
N-(2-fluorophenyl)-2-[4-(N-methylcyclopropanesulfonamido)piperidin-1-yl]acetamide	N-(2-fluorophenyl)-2-[4-(N-methylcyclopropanesulfonamido)piperidin-1-yl]acetamide	分子量：369.5 密度：N/A 沸点：N/A 熔点：N/A	2742042-70-0	C₁₇H₂₄FN₃O₃S
3,5-dimethyl-4-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridine-7-carbonyl}-1,2-oxazole	3,5-dimethyl-4-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridine-7-carbonyl}-1,2-oxazole	分子量：308.33 密度：N/A 沸点：N/A 熔点：N/A	2741939-44-4	C₁₇H₁₆N₄O₂
2-[1-(Morpholine-4-sulfonyl)piperidin-4-yl]-6-(pyridin-4-yl)-1,8-naphthyridine	2-[1-(Morpholine-4-sulfonyl)piperidin-4-yl]-6-(pyridin-4-yl)-1,8-naphthyridine	分子量：439.5 密度：N/A 沸点：N/A 熔点：N/A	2741897-03-8	C₂₂H₂₅N₅O₃S
5-methyl-4-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridine-7-carbonyl}-1,2-oxazole	5-methyl-4-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridine-7-carbonyl}-1,2-oxazole	分子量：294.31 密度：N/A 沸点：N/A 熔点：N/A	2742058-62-2	C₁₆H₁₄N₄O₂
N-(2,3-dihydro-1,4-benzodioxin-6-yl)-2-[4-(N-methylcyclopropanesulfonamido)piperidin-1-yl]acetamide	N-(2,3-dihydro-1,4-benzodioxin-6-yl)-2-[4-(N-methylcyclopropanesulfonamido)piperidin-1-yl]acetamide	分子量：409.5 密度：N/A 沸点：N/A 熔点：N/A	2741939-76-2	C₁₉H₂₇N₃O₅S
2-{[2-(4-methoxyphenyl)ethyl](methyl)amino}-4H-pyrido[1,2-a]pyrimidin-4-one	2-{[2-(4-methoxyphenyl)ethyl](methyl)amino}-4H-pyrido[1,2-a]pyrimidin-4-one	分子量：309.4 密度：N/A 沸点：N/A 熔点：N/A	2742063-10-9	C₁₈H₁₉N₃O₂
2-[1-(Oxolane-2-carbonyl)piperidin-4-yl]-6-(pyrimidin-5-yl)-1,8-naphthyridine	2-[1-(Oxolane-2-carbonyl)piperidin-4-yl]-6-(pyrimidin-5-yl)-1,8-naphthyridine	分子量：389.4 密度：N/A 沸点：N/A 熔点：N/A	2741923-40-8	C₂₂H₂₃N₅O₂
(3-(Bis(4-(tert-butyl)phenyl)amino)-5-fluorophenyl)boronic acid	(3-(Bis(4-(tert-butyl)phenyl)amino)-5-fluorophenyl)boronic acid	分子量：419.3 密度：N/A 沸点：N/A 熔点：N/A	2776179-41-8	C₂₆H₃₁BFNO₂
N-[2-(4-methoxyphenyl)ethyl]-N,2-dimethylpyrido[3,4-d]pyrimidin-4-amine	N-[2-(4-methoxyphenyl)ethyl]-N,2-dimethylpyrido[3,4-d]pyrimidin-4-amine	分子量：308.4 密度：N/A 沸点：N/A 熔点：N/A	2742025-81-4	C₁₈H₂₀N₄O
2,2-dimethyl-N-(1-{3-methyl-4-oxo-3H,4H-thieno[3,2-d]pyrimidin-2-yl}piperidin-4-yl)propanamide	2,2-dimethyl-N-(1-{3-methyl-4-oxo-3H,4H-thieno[3,2-d]pyrimidin-2-yl}piperidin-4-yl)propanamide	分子量：348.5 密度：N/A 沸点：N/A 熔点：N/A	2742034-69-9	C₁₇H₂₄N₄O₂S
(2R)-2-(2-bromo-5-chlorophenyl)oxirane	(2R)-2-(2-bromo-5-chlorophenyl)oxirane	分子量：233.49 密度：N/A 沸点：N/A 熔点：N/A	2227916-08-5	C₈H₆BrClO
N-(propan-2-yl)-2-(4-{thieno[3,2-b]pyridin-7-yl}piperazin-1-yl)propanamide	N-(propan-2-yl)-2-(4-{thieno[3,2-b]pyridin-7-yl}piperazin-1-yl)propanamide	分子量：332.5 密度：N/A 沸点：N/A 熔点：N/A	2741896-42-2	C₁₇H₂₄N₄OS
2-[1-(Oxane-2-carbonyl)piperidin-4-yl]-6-(pyrimidin-5-yl)-1,8-naphthyridine	2-[1-(Oxane-2-carbonyl)piperidin-4-yl]-6-(pyrimidin-5-yl)-1,8-naphthyridine	分子量：403.5 密度：N/A 沸点：N/A 熔点：N/A	2741923-74-8	C₂₃H₂₅N₅O₂
N-[2-(4-methoxyphenyl)ethyl]-N,2,5-trimethylpyrazolo[1,5-a]pyrimidin-7-amine	N-[2-(4-methoxyphenyl)ethyl]-N,2,5-trimethylpyrazolo[1,5-a]pyrimidin-7-amine	分子量：310.4 密度：N/A 沸点：N/A 熔点：N/A	2741943-28-0	C₁₈H₂₂N₄O
9-ethyl-6-{[2-(4-methoxyphenyl)ethyl]amino}-8,9-dihydro-7H-purin-8-one	9-ethyl-6-{[2-(4-methoxyphenyl)ethyl]amino}-8,9-dihydro-7H-purin-8-one	分子量：313.35 密度：N/A 沸点：N/A 熔点：N/A	2741910-00-7	C₁₆H₁₉N₅O₂
9-cyclopropyl-6-[4-(2-phenylethyl)piperazin-1-yl]-9H-purine	9-cyclopropyl-6-[4-(2-phenylethyl)piperazin-1-yl]-9H-purine	分子量：348.4 密度：N/A 沸点：N/A 熔点：N/A	2742029-32-7	C₂₀H₂₄N₆
2-Azido-2-(5-bromo-2-methoxyphenyl)ethan-1-ol	2-Azido-2-(5-bromo-2-methoxyphenyl)ethan-1-ol	分子量：272.10 密度：N/A 沸点：N/A 熔点：N/A	2229327-58-4	C₉H₁₀BrN₃O₂
N-cyclopropyl-2-{3-[(5-methoxypyrimidin-2-yl)oxy]pyrrolidin-1-yl}acetamide	N-cyclopropyl-2-{3-[(5-methoxypyrimidin-2-yl)oxy]pyrrolidin-1-yl}acetamide	分子量：292.33 密度：N/A 沸点：N/A 熔点：N/A	2741948-61-6	C₁₄H₂₀N₄O₃
4-(Pyridin-2-yl)-2-{4-[3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperazin-1-yl}pyrimidine	4-(Pyridin-2-yl)-2-{4-[3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperazin-1-yl}pyrimidine	分子量：427.4 密度：N/A 沸点：N/A 熔点：N/A	2741924-20-7	C₁₉H₁₆F₃N₉
6-Fluoro-2-[5-(3-fluoropyridin-2-yl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]-1,3-benzothiazole	6-Fluoro-2-[5-(3-fluoropyridin-2-yl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]-1,3-benzothiazole	分子量：358.4 密度：N/A 沸点：N/A 熔点：N/A	2741955-43-9	C₁₈H₁₆F₂N₄S
4-(Pyridin-3-yl)-2-{4-[3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperazin-1-yl}pyrimidine	4-(Pyridin-3-yl)-2-{4-[3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperazin-1-yl}pyrimidine	分子量：427.4 密度：N/A 沸点：N/A 熔点：N/A	2742040-68-0	C₁₉H₁₆F₃N₉
3-{[(Tert-butoxy)carbonyl]amino}-5,6-dimethylpyrazine-2-carboxylic acid	3-{[(Tert-butoxy)carbonyl]amino}-5,6-dimethylpyrazine-2-carboxylic acid	分子量：267.28 密度：N/A 沸点：N/A 熔点：N/A	2361982-59-2	C₁₂H₁₇N₃O₄
4-(Pyridin-4-yl)-2-{4-[3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperazin-1-yl}pyrimidine	4-(Pyridin-4-yl)-2-{4-[3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperazin-1-yl}pyrimidine	分子量：427.4 密度：N/A 沸点：N/A 熔点：N/A	2741896-81-9	C₁₉H₁₆F₃N₉
1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 2,2-dimethyl-5-phenylpentanoate	1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 2,2-dimethyl-5-phenylpentanoate	分子量：351.4 密度：N/A 沸点：N/A 熔点：N/A	2248307-43-7	C₂₁H₂₁NO₄
tert-butyl N-[2-hydroxy-1-(4-methyl-4H-1,2,4-triazol-3-yl)ethyl]carbamate	tert-butyl N-[2-hydroxy-1-(4-methyl-4H-1,2,4-triazol-3-yl)ethyl]carbamate	分子量：242.28 密度：N/A 沸点：N/A 熔点：N/A	2408974-70-7	C₁₀H₁₈N₄O₃
3-(3-Chloro-2,4-difluorophenoxy)azetidine	3-(3-Chloro-2,4-difluorophenoxy)azetidine	分子量：219.61 密度：N/A 沸点：N/A 熔点：N/A	2229162-39-2	C₉H₈ClF₂NO
1-(2-Cyclopropylphenyl)cyclohexane-1-carboxylic acid	1-(2-Cyclopropylphenyl)cyclohexane-1-carboxylic acid	分子量：244.33 密度：N/A 沸点：N/A 熔点：N/A	1922145-05-8	C₁₆H₂₀O₂
(2S)-1-(2-methylpyridin-4-yl)propan-2-amine	(2S)-1-(2-methylpyridin-4-yl)propan-2-amine	分子量：150.22 密度：N/A 沸点：N/A 熔点：N/A	1335308-18-3	C₉H₁₄N₂
2-[1-(1-Fluoroethenyl)cyclohexyl]acetic acid	2-[1-(1-Fluoroethenyl)cyclohexyl]acetic acid	分子量：186.22 密度：N/A 沸点：N/A 熔点：N/A	2137895-34-0	C₁₀H₁₅FO₂
1-(1-ethyl-1H-pyrazol-3-yl)-2-(methylamino)ethan-1-one	1-(1-ethyl-1H-pyrazol-3-yl)-2-(methylamino)ethan-1-one	分子量：167.21 密度：N/A 沸点：N/A 熔点：N/A	2228448-76-6	C₈H₁₃N₃O
1,5-dimethyl-3-(oxiran-2-yl)-1H-pyrazole	1,5-dimethyl-3-(oxiran-2-yl)-1H-pyrazole	分子量：138.17 密度：N/A 沸点：N/A 熔点：N/A	2228599-07-1	C₇H₁₀N₂O
Methyl({2-[4-(propan-2-yl)cyclohexyl]propan-2-yl})amine	Methyl({2-[4-(propan-2-yl)cyclohexyl]propan-2-yl})amine	分子量：197.36 密度：N/A 沸点：N/A 熔点：N/A	2228387-07-1	C₁₃H₂₇N
(1-{Pyrazolo[1,5-a]pyrimidin-2-yl}cyclobutyl)methanamine	(1-{Pyrazolo[1,5-a]pyrimidin-2-yl}cyclobutyl)methanamine	分子量：202.26 密度：N/A 沸点：N/A 熔点：N/A	2229423-44-1	C₁₁H₁₄N₄
Methyl 2-hydroxy-2-[5-(methoxymethyl)furan-2-yl]acetate	Methyl 2-hydroxy-2-[5-(methoxymethyl)furan-2-yl]acetate	分子量：200.19 密度：N/A 沸点：N/A 熔点：N/A	2228599-30-0	C₉H₁₂O₅
4-(2-Fluoro-6-methylphenyl)but-3-en-2-amine	4-(2-Fluoro-6-methylphenyl)but-3-en-2-amine	分子量：179.23 密度：N/A 沸点：N/A 熔点：N/A	2229651-14-1	C₁₁H₁₄FN
1-[(Cyclopent-3-en-1-yl)methyl]-4-ethylcyclohex-2-en-1-ol	1-[(Cyclopent-3-en-1-yl)methyl]-4-ethylcyclohex-2-en-1-ol	分子量：206.32 密度：N/A 沸点：N/A 熔点：N/A	2138528-38-6	C₁₄H₂₂O
[3-(2-Fluoro-6-methylphenyl)-2,2-dimethylcyclopropyl]methanamine	[3-(2-Fluoro-6-methylphenyl)-2,2-dimethylcyclopropyl]methanamine	分子量：207.29 密度：N/A 沸点：N/A 熔点：N/A	2228599-37-7	C₁₃H₁₈FN
{1-[(4-Cyclopropyl-1,3-thiazol-5-yl)methyl]cyclopropyl}methanol	{1-[(4-Cyclopropyl-1,3-thiazol-5-yl)methyl]cyclopropyl}methanol	分子量：209.31 密度：N/A 沸点：N/A 熔点：N/A	2228449-27-0	C₁₁H₁₅NOS
(1R)-1-(2-tert-butyl-2H-1,2,3,4-tetrazol-5-yl)ethan-1-amine	(1R)-1-(2-tert-butyl-2H-1,2,3,4-tetrazol-5-yl)ethan-1-amine	分子量：169.23 密度：N/A 沸点：N/A 熔点：N/A	2227760-98-5	C₇H₁₅N₅