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
N-[(4-sulfamoylphenyl)methyl]-4-(trifluoromethyl)pyrimidine-2-carboxamide	N-[(4-sulfamoylphenyl)methyl]-4-(trifluoromethyl)pyrimidine-2-carboxamide	分子量：360.31 密度：N/A 沸点：N/A 熔点：N/A	2415516-42-4	C₁₃H₁₁F₃N₄O₃S
N-(4-methyl-1,3-benzothiazol-2-yl)-4-(trifluoromethyl)pyrimidine-2-carboxamide	N-(4-methyl-1,3-benzothiazol-2-yl)-4-(trifluoromethyl)pyrimidine-2-carboxamide	分子量：338.31 密度：N/A 沸点：N/A 熔点：N/A	2415491-25-5	C₁₄H₉F₃N₄OS
N-[2-(4-fluorophenyl)ethyl]-4-(trifluoromethyl)pyrimidine-2-carboxamide	N-[2-(4-fluorophenyl)ethyl]-4-(trifluoromethyl)pyrimidine-2-carboxamide	分子量：313.25 密度：N/A 沸点：N/A 熔点：N/A	2415573-77-0	C₁₄H₁₁F₄N₃O
N-[3-(difluoromethoxy)phenyl]-4-(trifluoromethyl)pyrimidine-2-carboxamide	N-[3-(difluoromethoxy)phenyl]-4-(trifluoromethyl)pyrimidine-2-carboxamide	分子量：333.21 密度：N/A 沸点：N/A 熔点：N/A	2415533-86-5	C₁₃H₈F₅N₃O₂
N-({[1,2,4]triazolo[3,2-b][1,3]thiazol-6-yl}methyl)-4-(trifluoromethyl)pyrimidine-2-carboxamide	N-({[1,2,4]triazolo[3,2-b][1,3]thiazol-6-yl}methyl)-4-(trifluoromethyl)pyrimidine-2-carboxamide	分子量：328.28 密度：N/A 沸点：N/A 熔点：N/A	2415562-31-9	C₁₁H₇F₃N₆OS
2-[4-(Cyclopropanesulfonyl)piperazine-1-carbonyl]-4-(trifluoromethyl)pyrimidine	2-[4-(Cyclopropanesulfonyl)piperazine-1-carbonyl]-4-(trifluoromethyl)pyrimidine	分子量：364.35 密度：N/A 沸点：N/A 熔点：N/A	2415620-46-9	C₁₃H₁₅F₃N₄O₃S
2-[4-(2-Fluorophenyl)piperazine-1-carbonyl]-4-(trifluoromethyl)pyrimidine	2-[4-(2-Fluorophenyl)piperazine-1-carbonyl]-4-(trifluoromethyl)pyrimidine	分子量：354.30 密度：N/A 沸点：N/A 熔点：N/A	2415622-41-0	C₁₆H₁₄F₄N₄O
2-[4-(2-Chlorophenyl)piperazine-1-carbonyl]-4-(trifluoromethyl)pyrimidine	2-[4-(2-Chlorophenyl)piperazine-1-carbonyl]-4-(trifluoromethyl)pyrimidine	分子量：370.75 密度：N/A 沸点：N/A 熔点：N/A	2415523-02-1	C₁₆H₁₄ClF₃N₄O
N-(2-carbamoylphenyl)-4-(trifluoromethyl)pyrimidine-2-carboxamide	N-(2-carbamoylphenyl)-4-(trifluoromethyl)pyrimidine-2-carboxamide	分子量：310.23 密度：N/A 沸点：N/A 熔点：N/A	2415543-07-4	C₁₃H₉F₃N₄O₂
Haspin-IN-1	Haspin-IN-1	分子量：272.28 密度：N/A 沸点：N/A 熔点：N/A	2768474-30-0	C₁₂H₈N₄O₂S
[(2R,8S,9S,12S)-2-Hydroxy-18-methyl-11,17-dioxo-5-oxa-13,14,15,16-tetrathia-10,18-diazatetracyclo[10.4.2.01,10.03,9]octadeca-3,6-dien-8-yl] 3-(5-formyl-2-hydroxyphenoxy)-4-methoxybenzoate	[(2R,8S,9S,12S)-2-Hydroxy-18-methyl-11,17-dioxo-5-oxa-13,14,15,16-tetrathia-10,18-diazatetracyclo[10.4.2.01,10.03,9]octadeca-3,6-dien-8-yl] 3-(5-formyl-2-hydroxyphenoxy)-4-methoxybenzoate	分子量：662.7 密度：N/A 沸点：N/A 熔点：N/A	1217510-41-2	C₂₇H₂₂N₂O₁₀S₄
Tert-butyl (2R,3R)-3-(4-methoxy-3-nitrophenyl)aziridine-2-carboxylate	Tert-butyl (2R,3R)-3-(4-methoxy-3-nitrophenyl)aziridine-2-carboxylate	分子量：294.30 密度：N/A 沸点：N/A 熔点：N/A	1980007-31-5	C₁₄H₁₈N₂O₅
(1S,2R,4R)-7-Oxabicyclo[2.2.1]heptane-2-carboxamide	(1S,2R,4R)-7-Oxabicyclo[2.2.1]heptane-2-carboxamide	分子量：141.17 密度：N/A 沸点：N/A 熔点：N/A	2307773-47-1	C₇H₁₁NO₂
5-Cyano-3,4-dimethyl-6-vinylpicolinic acid	5-Cyano-3,4-dimethyl-6-vinylpicolinic acid	分子量：202.21 密度：N/A 沸点：N/A 熔点：N/A	2581232-55-3	C₁₁H₁₀N₂O₂
N-(2-chloro-4-fluorophenyl)-2-methoxypyridine-3-carboxamide	N-(2-chloro-4-fluorophenyl)-2-methoxypyridine-3-carboxamide	分子量：280.68 密度：N/A 沸点：N/A 熔点：N/A	2326295-37-6	C₁₃H₁₀ClFN₂O₂
N-(4,5-Dihydro-1H-imidazol-2-yl)-5,7-dimethyl-1H-indol-4-amine	N-(4,5-Dihydro-1H-imidazol-2-yl)-5,7-dimethyl-1H-indol-4-amine	分子量：228.29 密度：N/A 沸点：N/A 熔点：N/A	1101561-26-5	C₁₃H₁₆N₄
4-(8-Aminoimidazo[1,2-a]pyrazin-3-yl)-N-cyclopropylbenzamide	4-(8-Aminoimidazo[1,2-a]pyrazin-3-yl)-N-cyclopropylbenzamide	分子量：293.32 密度：N/A 沸点：N/A 熔点：N/A	1263421-50-6	C₁₆H₁₅N₅O
3-[(3,4-Dichlorophenoxy)methyl]-1,2,5,6-tetrahydro-1,5-dimethyl-1,2,4-triazine	3-[(3,4-Dichlorophenoxy)methyl]-1,2,5,6-tetrahydro-1,5-dimethyl-1,2,4-triazine	分子量：288.17 密度：N/A 沸点：N/A 熔点：N/A	13096-34-9	C₁₂H₁₅Cl₂N₃O
TCO-PEG1-amine	TCO-PEG1-amine	分子量：256.34 密度：N/A 沸点：N/A 熔点：N/A	2748967-46-4	C₁₃H₂₄N₂O₃
Methyl 5-((1-(tert-butoxycarbonyl)piperidin-4-yl)amino)picolinate	Methyl 5-((1-(tert-butoxycarbonyl)piperidin-4-yl)amino)picolinate	分子量：335.4 密度：N/A 沸点：N/A 熔点：N/A	2415122-31-3	C₁₇H₂₅N₃O₄
2-[2-(4-Benzoylphenoxy)ethoxy]ethyl methacrylate	2-[2-(4-Benzoylphenoxy)ethoxy]ethyl methacrylate	分子量：354.4 密度：N/A 沸点：N/A 熔点：N/A	2149581-44-0	C₂₁H₂₂O₅
1-(1H-indol-6-yl)prop-2-en-1-one	1-(1H-indol-6-yl)prop-2-en-1-one	分子量：171.19 密度：N/A 沸点：N/A 熔点：N/A	2229136-67-6	C₁₁H₉NO
benzyl N-methyl-N-(3-nitrophenyl)carbamate	benzyl N-methyl-N-(3-nitrophenyl)carbamate	分子量：286.28 密度：N/A 沸点：N/A 熔点：N/A	1822852-34-5	C₁₅H₁₄N₂O₄
3-Bromo-7-nitroso-1H-indazol-6-ol	3-Bromo-7-nitroso-1H-indazol-6-ol	分子量：242.03 密度：N/A 沸点：N/A 熔点：N/A	115003-13-9	C₇H₄BrN₃O₂
3-Formyl-I+/--methylbenzenepropanal	3-Formyl-I+/--methylbenzenepropanal	分子量：176.21 密度：N/A 沸点：N/A 熔点：N/A	20795-49-7	C₁₁H₁₂O₂
5-Isopropyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazine	5-Isopropyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazine	分子量：291.20 密度：N/A 沸点：N/A 熔点：N/A	2629316-57-8	C₁₅H₂₆BN₃O₂
N,Na(2)-Bis[(2-propen-1-yloxy)methyl]urea	N,Na(2)-Bis[(2-propen-1-yloxy)methyl]urea	分子量：200.23 密度：N/A 沸点：N/A 熔点：N/A	927-46-8	C₉H₁₆N₂O₃
2,3-difluoro-N-methylpyridin-4-amine	2,3-difluoro-N-methylpyridin-4-amine	分子量：144.12 密度：N/A 沸点：N/A 熔点：N/A	2694732-33-5	C₆H₆F₂N₂
Ethyl 1-(5-bromo-1,3,4-thiadiazol-2-yl)piperidine-4-carboxylate	Ethyl 1-(5-bromo-1,3,4-thiadiazol-2-yl)piperidine-4-carboxylate	分子量：320.21 密度：N/A 沸点：N/A 熔点：N/A	2351885-19-1	C₁₀H₁₄BrN₃O₂S
N-(2-Ethynylphenyl)ethanesulfonamide	N-(2-Ethynylphenyl)ethanesulfonamide	分子量：209.27 密度：N/A 沸点：N/A 熔点：N/A	2137882-08-5	C₁₀H₁₁NO₂S
(3R,4R)-Benzyl 3-fluoro-4-methylpiperidine-1-carboxylate	(3R,4R)-Benzyl 3-fluoro-4-methylpiperidine-1-carboxylate	分子量：251.30 密度：N/A 沸点：N/A 熔点：N/A	2679927-17-2	C₁₄H₁₈FNO₂
2-Ethynyl-1,1-dimethylcyclopropane	2-Ethynyl-1,1-dimethylcyclopropane	分子量：94.15 密度：N/A 沸点：N/A 熔点：N/A	21777-88-8	C₇H₁₀
N-[2-[4-Chloro-5-methyl-2-(1-methylethyl)phenoxy]ethyl]guanidine	N-[2-[4-Chloro-5-methyl-2-(1-methylethyl)phenoxy]ethyl]guanidine	分子量：269.77 密度：N/A 沸点：N/A 熔点：N/A	46895-14-1	C₁₃H₂₀ClN₃O
4-(1H-1,2,3,4-tetrazol-5-yl)butan-2-one	4-(1H-1,2,3,4-tetrazol-5-yl)butan-2-one	分子量：140.14 密度：N/A 沸点：N/A 熔点：N/A	2228737-58-2	C₅H₈N₄O
4-Amino-3-(2-methoxyethoxy)phenol	4-Amino-3-(2-methoxyethoxy)phenol	分子量：183.20 密度：N/A 沸点：N/A 熔点：N/A	2804046-46-4	C₉H₁₃NO₃
1-Acetyl-3-methylazetidine-2-carboxylic acid	1-Acetyl-3-methylazetidine-2-carboxylic acid	分子量：157.17 密度：N/A 沸点：N/A 熔点：N/A	2680585-27-5	C₇H₁₁NO₃
5,5-Difluoro-1,3,2-dioxathiane 2-oxide	5,5-Difluoro-1,3,2-dioxathiane 2-oxide	分子量：158.13 密度：N/A 沸点：N/A 熔点：N/A	15810-37-4	C₃H₄F₂O₃S
3-[4,5-Dihydro-5-oxo-3-phenyl-4-[(5-phenyl-2-furanyl)methylene]-1H-pyrazol-1-yl]benzoic acid	3-[4,5-Dihydro-5-oxo-3-phenyl-4-[(5-phenyl-2-furanyl)methylene]-1H-pyrazol-1-yl]benzoic acid	分子量：434.4 密度：N/A 沸点：N/A 熔点：N/A	1628683-69-1	C₂₇H₁₈N₂O₄
2-{Bicyclo[1.1.1]pentan-1-yl}ethyl 4-methylbenzene-1-sulfonate	2-{Bicyclo[1.1.1]pentan-1-yl}ethyl 4-methylbenzene-1-sulfonate	分子量：266.36 密度：N/A 沸点：N/A 熔点：N/A	2242694-30-8	C₁₄H₁₈O₃S
2-chloro-N-(1,1-dioxo-1lambda6-thiolan-3-yl)pyridine-3-carboxamide hydrochloride	2-chloro-N-(1,1-dioxo-1lambda6-thiolan-3-yl)pyridine-3-carboxamide hydrochloride	分子量：311.18 密度：N/A 沸点：N/A 熔点：N/A	2396111-35-4	C₁₀H₁₂Cl₂N₂O₃S
N-(1-cyanocyclohexyl)-2-(3-fluoro-4-nitrophenoxy)-N-methylacetamide	N-(1-cyanocyclohexyl)-2-(3-fluoro-4-nitrophenoxy)-N-methylacetamide	分子量：335.33 密度：N/A 沸点：N/A 熔点：N/A	2308333-46-0	C₁₆H₁₈FN₃O₄
[(6-Chloropyridazin-3-yl)methyl][1-(dimethylamino)-1-phenylpropan-2-yl]amine	[(6-Chloropyridazin-3-yl)methyl][1-(dimethylamino)-1-phenylpropan-2-yl]amine	分子量：304.82 密度：N/A 沸点：N/A 熔点：N/A	2308120-69-4	C₁₆H₂₁ClN₄
1-(1,3-Dioxaindane-5-carbonyl)-4-(prop-2-yn-1-yl)-1,4-diazepane	1-(1,3-Dioxaindane-5-carbonyl)-4-(prop-2-yn-1-yl)-1,4-diazepane	分子量：286.33 密度：N/A 沸点：N/A 熔点：N/A	2393757-23-6	C₁₆H₁₈N₂O₃
1-[1-(4-Chlorophenyl)cyclopropanecarbonyl]-4-(prop-2-yn-1-yl)-1,4-diazepane	1-[1-(4-Chlorophenyl)cyclopropanecarbonyl]-4-(prop-2-yn-1-yl)-1,4-diazepane	分子量：316.8 密度：N/A 沸点：N/A 熔点：N/A	2394455-92-4	C₁₈H₂₁ClN₂O
2-[5-(2-Methoxyphenyl)-1,3,4-oxadiazol-2-yl]-1-[4-(prop-2-yn-1-yl)-1,4-diazepan-1-yl]ethan-1-one	2-[5-(2-Methoxyphenyl)-1,3,4-oxadiazol-2-yl]-1-[4-(prop-2-yn-1-yl)-1,4-diazepan-1-yl]ethan-1-one	分子量：354.4 密度：N/A 沸点：N/A 熔点：N/A	2249268-48-0	C₁₉H₂₂N₄O₃
3-[2-(Tert-butoxy)phenyl]-1-[(5-chloropyrazin-2-yl)methyl]urea	3-[2-(Tert-butoxy)phenyl]-1-[(5-chloropyrazin-2-yl)methyl]urea	分子量：334.80 密度：N/A 沸点：N/A 熔点：N/A	2308141-13-9	C₁₆H₁₉ClN₄O₂
6-bromo-N-ethyl-N-(3,3,3-trifluoro-2-hydroxypropyl)imidazo[1,2-a]pyrazine-3-carboxamide	6-bromo-N-ethyl-N-(3,3,3-trifluoro-2-hydroxypropyl)imidazo[1,2-a]pyrazine-3-carboxamide	分子量：381.15 密度：N/A 沸点：N/A 熔点：N/A	2323290-83-9	C₁₂H₁₂BrF₃N₄O₂
N-{5H,6H,7H,8H-imidazo[1,5-a]pyridin-6-yl}prop-2-enamide	N-{5H,6H,7H,8H-imidazo[1,5-a]pyridin-6-yl}prop-2-enamide	分子量：191.23 密度：N/A 沸点：N/A 熔点：N/A	2308161-45-5	C₁₀H₁₃N₃O
6-Chloro-2-(piperidin-4-yl)-1,8-naphthyridine dihydrochloride	6-Chloro-2-(piperidin-4-yl)-1,8-naphthyridine dihydrochloride	分子量：320.6 密度：N/A 沸点：N/A 熔点：N/A	2640815-76-3	C₁₃H₁₆Cl₃N₃
N5-(1-methoxypropan-2-yl)-N5-methylpyridine-2,5-diamine dihydrochloride	N5-(1-methoxypropan-2-yl)-N5-methylpyridine-2,5-diamine dihydrochloride	分子量：268.18 密度：N/A 沸点：N/A 熔点：N/A	2624132-05-2	C₁₀H₁₉Cl₂N₃O