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
(3-Aminocyclobutyl)(imino)(methyl)-L6-sulfanone	(3-Aminocyclobutyl)(imino)(methyl)-L6-sulfanone	分子量：148.23 密度：N/A 沸点：N/A 熔点：N/A	2624121-83-9	C₅H₁₂N₂OS
(2R)-3-[(5R)-3-bromo-4,5-dihydro-1,2-oxazol-5-yl]-2-{[(tert-butoxy)carbonyl]amino}propanoic acid	(2R)-3-[(5R)-3-bromo-4,5-dihydro-1,2-oxazol-5-yl]-2-{[(tert-butoxy)carbonyl]amino}propanoic acid	分子量：337.17 密度：N/A 沸点：N/A 熔点：N/A	2309296-08-8	C₁₁H₁₇BrN₂O₅
Tert-butyl 4-(2-aminoethyl)-2-azabicyclo[2.2.1]heptane-2-carboxylate	Tert-butyl 4-(2-aminoethyl)-2-azabicyclo[2.2.1]heptane-2-carboxylate	分子量：240.34 密度：N/A 沸点：N/A 熔点：N/A	2624135-79-9	C₁₃H₂₄N₂O₂
Tert-butyl 4-(aminomethyl)-2-azabicyclo[2.2.1]heptane-2-carboxylate	Tert-butyl 4-(aminomethyl)-2-azabicyclo[2.2.1]heptane-2-carboxylate	分子量：226.32 密度：N/A 沸点：N/A 熔点：N/A	2624135-74-4	C₁₂H₂₂N₂O₂
2-Tert-butyl-3-oxocyclobutane-1-carboxylic acid	2-Tert-butyl-3-oxocyclobutane-1-carboxylic acid	分子量：170.21 密度：N/A 沸点：N/A 熔点：N/A	2384295-33-2	C₉H₁₄O₃
4,5-difluoro-6-methoxy-1H-indole-2-carboxylic acid	4,5-difluoro-6-methoxy-1H-indole-2-carboxylic acid	分子量：227.16 密度：N/A 沸点：N/A 熔点：N/A	2624135-34-6	C₁₀H₇F₂NO₃
tert-butyl N-({5-azaspiro[2.4]heptan-7-yl}methyl)-N-methylcarbamate	tert-butyl N-({5-azaspiro[2.4]heptan-7-yl}methyl)-N-methylcarbamate	分子量：240.34 密度：N/A 沸点：N/A 熔点：N/A	852831-41-5	C₁₃H₂₄N₂O₂
4-bromo-1-ethyl-3-ethynyl-1H-pyrazole	4-bromo-1-ethyl-3-ethynyl-1H-pyrazole	分子量：199.05 密度：N/A 沸点：N/A 熔点：N/A	2624134-85-4	C₇H₇BrN₂
4-Hydroxythieno[3,2-d]pyrimidine-7-sulfonyl chloride	4-Hydroxythieno[3,2-d]pyrimidine-7-sulfonyl chloride	分子量：250.7 密度：N/A 沸点：N/A 熔点：N/A	2624141-11-1	C₆H₃ClN₂O₃S₂
rac-(1R,4R,5S)-5-methoxy-2-azabicyclo[2.2.1]heptane	rac-(1R,4R,5S)-5-methoxy-2-azabicyclo[2.2.1]heptane	分子量：127.18 密度：N/A 沸点：N/A 熔点：N/A	2624109-14-2	C₇H₁₃NO
2,2,2-Trifluoro-1-{5-oxa-8-azaspiro[3.5]nonan-8-yl}ethan-1-one	2,2,2-Trifluoro-1-{5-oxa-8-azaspiro[3.5]nonan-8-yl}ethan-1-one	分子量：223.19 密度：N/A 沸点：N/A 熔点：N/A	2624141-14-4	C₉H₁₂F₃NO₂
rac-tert-butyl (1R,2R)-2-(bromomethyl)cyclopropane-1-carboxylate	rac-tert-butyl (1R,2R)-2-(bromomethyl)cyclopropane-1-carboxylate	分子量：235.12 密度：N/A 沸点：N/A 熔点：N/A	2624108-83-2	C₉H₁₅BrO₂
[(3R)-2-nitroso-1,2,3,4-tetrahydroisoquinolin-3-yl]methanol	[(3R)-2-nitroso-1,2,3,4-tetrahydroisoquinolin-3-yl]methanol	分子量：192.21 密度：N/A 沸点：N/A 熔点：N/A	2624108-82-1	C₁₀H₁₂N₂O₂
rac-tert-butyl (1R,5S,6R)-6-(hydroxymethyl)-8-azabicyclo[3.2.1]octane-8-carboxylate	rac-tert-butyl (1R,5S,6R)-6-(hydroxymethyl)-8-azabicyclo[3.2.1]octane-8-carboxylate	分子量：241.33 密度：N/A 沸点：N/A 熔点：N/A	2648865-55-6	C₁₃H₂₃NO₃
rac-(1R,2R)-2-({1-[(tert-butoxy)carbonyl]piperidin-4-yl}methyl)cyclopropane-1-carboxylic acid	rac-(1R,2R)-2-({1-[(tert-butoxy)carbonyl]piperidin-4-yl}methyl)cyclopropane-1-carboxylic acid	分子量：283.36 密度：N/A 沸点：N/A 熔点：N/A	2350443-70-6	C₁₅H₂₅NO₄
5-bromo-4-isopropyl-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-imidazole	5-bromo-4-isopropyl-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-imidazole	分子量：319.31 密度：N/A 沸点：N/A 熔点：N/A	2550492-47-0	C₁₂H₂₃BrN₂OSi
2-[(1-methyl-1H-pyrazol-4-yl)sulfonyl]ethan-1-amine	2-[(1-methyl-1H-pyrazol-4-yl)sulfonyl]ethan-1-amine	分子量：189.24 密度：N/A 沸点：N/A 熔点：N/A	2624121-57-7	C₆H₁₁N₃O₂S
{1-Methyl-2-oxabicyclo[3.1.1]heptan-4-yl}methanol	{1-Methyl-2-oxabicyclo[3.1.1]heptan-4-yl}methanol	分子量：142.20 密度：N/A 沸点：N/A 熔点：N/A	2624129-17-3	C₈H₁₄O₂
2-[(3,5-Dimethyl-1,2-oxazol-4-yl)sulfanyl]ethan-1-amine	2-[(3,5-Dimethyl-1,2-oxazol-4-yl)sulfanyl]ethan-1-amine	分子量：172.25 密度：N/A 沸点：N/A 熔点：N/A	2624125-73-9	C₇H₁₂N₂OS
imino(methyl)[1-(oxan-2-yl)-1H-pyrazol-4-yl]-lambda6-sulfanone	imino(methyl)[1-(oxan-2-yl)-1H-pyrazol-4-yl]-lambda6-sulfanone	分子量：229.30 密度：N/A 沸点：N/A 熔点：N/A	2624137-26-2	C₉H₁₅N₃O₂S
3-Nitro-5-(trifluoromethyl)benzene-1-carboximidamide	3-Nitro-5-(trifluoromethyl)benzene-1-carboximidamide	分子量：233.15 密度：N/A 沸点：N/A 熔点：N/A	20566-85-2	C₈H₆F₃N₃O₂
tert-Butyl (4-hydroxy-2,2-dimethylbutyl)(methyl)carbamate	tert-Butyl (4-hydroxy-2,2-dimethylbutyl)(methyl)carbamate	分子量：231.33 密度：N/A 沸点：N/A 熔点：N/A	2407613-41-4	C₁₂H₂₅NO₃
4-(azidomethyl)-1-ethyl-3,5-dimethyl-1H-pyrazole	4-(azidomethyl)-1-ethyl-3,5-dimethyl-1H-pyrazole	分子量：179.22 密度：N/A 沸点：N/A 熔点：N/A	2229274-97-7	C₈H₁₃N₅
2-{1-[(tert-butoxy)carbonyl]-2,3,4,5-tetrahydro-1H-1-benzazepin-5-yl}acetic acid	2-{1-[(tert-butoxy)carbonyl]-2,3,4,5-tetrahydro-1H-1-benzazepin-5-yl}acetic acid	分子量：305.4 密度：N/A 沸点：N/A 熔点：N/A	2624136-25-8	C₁₇H₂₃NO₄
3-(Aminomethyl)pyrrolidine-1-carbonitrile	3-(Aminomethyl)pyrrolidine-1-carbonitrile	分子量：125.17 密度：N/A 沸点：N/A 熔点：N/A	2243176-74-9	C₆H₁₁N₃
N-Octyl-5-oxo-2-pyrrolidinecarboxamide	N-Octyl-5-oxo-2-pyrrolidinecarboxamide	分子量：240.34 密度：N/A 沸点：N/A 熔点：N/A	55478-46-1	C₁₃H₂₄N₂O₂
1-{[(tert-butoxy)carbamoyl]methyl}-1H-imidazole-5-carboxylic acid	1-{[(tert-butoxy)carbamoyl]methyl}-1H-imidazole-5-carboxylic acid	分子量：241.24 密度：N/A 沸点：N/A 熔点：N/A	2624140-64-1	C₁₀H₁₅N₃O₄
2,6-Dichloro-9H-fluorene	2,6-Dichloro-9H-fluorene	分子量：235.10 密度：N/A 沸点：N/A 熔点：N/A	832-90-6	C₁₃H₈Cl₂
5-Azido-2-methylbenzene-1-sulfonyl fluoride	5-Azido-2-methylbenzene-1-sulfonyl fluoride	分子量：215.21 密度：N/A 沸点：N/A 熔点：N/A	2648956-00-5	C₇H₆FN₃O₂S
tert-butyl N-[3-oxo-1-(trifluoromethyl)cyclobutyl]carbamate	tert-butyl N-[3-oxo-1-(trifluoromethyl)cyclobutyl]carbamate	分子量：253.22 密度：N/A 沸点：N/A 熔点：N/A	2386117-40-2	C₁₀H₁₄F₃NO₃
7-Methoxy-2,2-dimethyl-2,3,4,5-tetrahydro-1,4-benzoxazepin-5-one	7-Methoxy-2,2-dimethyl-2,3,4,5-tetrahydro-1,4-benzoxazepin-5-one	分子量：221.25 密度：N/A 沸点：N/A 熔点：N/A	2624140-68-5	C₁₂H₁₅NO₃
ethyl 1-(3-oxopropyl)-1H-pyrazole-5-carboxylate	ethyl 1-(3-oxopropyl)-1H-pyrazole-5-carboxylate	分子量：196.20 密度：N/A 沸点：N/A 熔点：N/A	2549160-45-2	C₉H₁₂N₂O₃
Methyl 3-hydroxy-5-(trifluoromethyl)furo[2,3-b]pyridine-2-carboxylate	Methyl 3-hydroxy-5-(trifluoromethyl)furo[2,3-b]pyridine-2-carboxylate	分子量：261.15 密度：N/A 沸点：N/A 熔点：N/A	2624136-35-0	C₁₀H₆F₃NO₄
benzyl N-(4-phenylpiperidin-4-yl)carbamate	benzyl N-(4-phenylpiperidin-4-yl)carbamate	分子量：310.4 密度：N/A 沸点：N/A 熔点：N/A	2624135-31-3	C₁₉H₂₂N₂O₂
1-[1-(4-tert-butylphenyl)-5-methyl-1H-pyrazol-4-yl]ethan-1-amine	1-[1-(4-tert-butylphenyl)-5-methyl-1H-pyrazol-4-yl]ethan-1-amine	分子量：257.37 密度：N/A 沸点：N/A 熔点：N/A	2624140-75-4	C₁₆H₂₃N₃
1-(Cyclobutoxymethyl)-2-fluorobenzene	1-(Cyclobutoxymethyl)-2-fluorobenzene	分子量：180.22 密度：N/A 沸点：N/A 熔点：N/A	2549002-66-4	C₁₁H₁₃FO
5-(morpholin-2-yl)-1H-indole	5-(morpholin-2-yl)-1H-indole	分子量：202.25 密度：N/A 沸点：N/A 熔点：N/A	1521373-49-8	C₁₂H₁₄N₂O
4-methyl-2-[(2-{1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl}-octahydrocyclopenta[c]pyrrol-3a-yl)methoxy]pyrimidine	4-methyl-2-[(2-{1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl}-octahydrocyclopenta[c]pyrrol-3a-yl)methoxy]pyrimidine	分子量：365.4 密度：N/A 沸点：N/A 熔点：N/A	2742047-26-1	C₁₉H₂₃N₇O
4-cyclopropyl-3-[1-(6-fluoroquinazolin-4-yl)piperidin-4-yl]-1-methyl-4,5-dihydro-1H-1,2,4-triazol-5-one	4-cyclopropyl-3-[1-(6-fluoroquinazolin-4-yl)piperidin-4-yl]-1-methyl-4,5-dihydro-1H-1,2,4-triazol-5-one	分子量：368.4 密度：N/A 沸点：N/A 熔点：N/A	2742036-24-2	C₁₉H₂₁FN₆O
4,5-Dimethyl-6-[(2-{[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-octahydrocyclopenta[c]pyrrol-3a-yl)methoxy]pyrimidine	4,5-Dimethyl-6-[(2-{[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-octahydrocyclopenta[c]pyrrol-3a-yl)methoxy]pyrimidine	分子量：365.4 密度：N/A 沸点：N/A 熔点：N/A	2742040-37-3	C₁₉H₂₃N₇O
6-Fluoro-2-{3-[(3-methylpyridin-4-yl)oxy]pyrrolidin-1-yl}-1,3-benzoxazole	6-Fluoro-2-{3-[(3-methylpyridin-4-yl)oxy]pyrrolidin-1-yl}-1,3-benzoxazole	分子量：313.33 密度：N/A 沸点：N/A 熔点：N/A	2742051-74-5	C₁₇H₁₆FN₃O₂
1-(6-Ethyl-5-fluoropyrimidin-4-yl)-4-phenylpiperidine-4-carbonitrile	1-(6-Ethyl-5-fluoropyrimidin-4-yl)-4-phenylpiperidine-4-carbonitrile	分子量：310.4 密度：N/A 沸点：N/A 熔点：N/A	2742039-53-6	C₁₈H₁₉FN₄
9-(2-methoxyethyl)-6-[5-(5-methyl-1,3,4-thiadiazol-2-yl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]-9H-purine	9-(2-methoxyethyl)-6-[5-(5-methyl-1,3,4-thiadiazol-2-yl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]-9H-purine	分子量：386.5 密度：N/A 沸点：N/A 熔点：N/A	2742010-61-1	C₁₇H₂₂N₈OS
2-(5-{2,5-Dimethylpyrazolo[1,5-a]pyrimidin-7-yl}-octahydropyrrolo[3,4-c]pyrrol-2-yl)-3-(trifluoromethyl)pyridine	2-(5-{2,5-Dimethylpyrazolo[1,5-a]pyrimidin-7-yl}-octahydropyrrolo[3,4-c]pyrrol-2-yl)-3-(trifluoromethyl)pyridine	分子量：402.4 密度：N/A 沸点：N/A 熔点：N/A	2742053-53-6	C₂₀H₂₁F₃N₆
N-[(2,3-dihydro-1,4-benzodioxin-6-yl)methyl]-N,2-dimethylpyrido[3,4-d]pyrimidin-4-amine	N-[(2,3-dihydro-1,4-benzodioxin-6-yl)methyl]-N,2-dimethylpyrido[3,4-d]pyrimidin-4-amine	分子量：322.4 密度：N/A 沸点：N/A 熔点：N/A	2742060-58-6	C₁₈H₁₈N₄O₂
6-Chloro-2-[1-(5-cyclopropyl-1,2-oxazole-3-carbonyl)piperidin-4-yl]-1,8-naphthyridine	6-Chloro-2-[1-(5-cyclopropyl-1,2-oxazole-3-carbonyl)piperidin-4-yl]-1,8-naphthyridine	分子量：382.8 密度：N/A 沸点：N/A 熔点：N/A	2741894-43-7	C₂₀H₁₉ClN₄O₂
4-(4-{2-Tert-butylimidazo[1,2-b]pyridazin-6-yl}piperazin-1-yl)-5,6,7,8-tetrahydroquinazoline	4-(4-{2-Tert-butylimidazo[1,2-b]pyridazin-6-yl}piperazin-1-yl)-5,6,7,8-tetrahydroquinazoline	分子量：391.5 密度：N/A 沸点：N/A 熔点：N/A	2742037-14-3	C₂₂H₂₉N₇
2-(5-{Thieno[3,2-d]pyrimidin-4-yl}-octahydropyrrolo[3,4-c]pyrrol-2-yl)-3-(trifluoromethyl)pyridine	2-(5-{Thieno[3,2-d]pyrimidin-4-yl}-octahydropyrrolo[3,4-c]pyrrol-2-yl)-3-(trifluoromethyl)pyridine	分子量：391.4 密度：N/A 沸点：N/A 熔点：N/A	2742065-07-0	C₁₈H₁₆F₃N₅S
5-fluoro-N-{[1-(6-fluoro-1,3-benzoxazol-2-yl)piperidin-4-yl]methyl}-N,6-dimethylpyrimidin-4-amine	5-fluoro-N-{[1-(6-fluoro-1,3-benzoxazol-2-yl)piperidin-4-yl]methyl}-N,6-dimethylpyrimidin-4-amine	分子量：373.4 密度：N/A 沸点：N/A 熔点：N/A	2742015-74-1	C₁₉H₂₁F₂N₅O
2-[4-(5-Cyclopropyl-1,3,4-oxadiazol-2-yl)piperidin-1-yl]-4,6-dimethyl-1,3-benzothiazole	2-[4-(5-Cyclopropyl-1,3,4-oxadiazol-2-yl)piperidin-1-yl]-4,6-dimethyl-1,3-benzothiazole	分子量：354.5 密度：N/A 沸点：N/A 熔点：N/A	2741938-60-1	C₁₉H₂₂N₄OS