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
7-Ethyl-8-chloro-10-(1'-D-ribityl)isoalloxazine	7-Ethyl-8-chloro-10-(1'-D-ribityl)isoalloxazine	分子量：410.8 密度：N/A 沸点：N/A 熔点：N/A	42782-53-6	C₁₇H₁₉ClN₄O₆
Riboflavin, 7-chloro-7,8-didemethyl-8-ethyl-	Riboflavin, 7-chloro-7,8-didemethyl-8-ethyl-	分子量：410.8 密度：N/A 沸点：N/A 熔点：N/A	42782-52-5	C₁₇H₁₉ClN₄O₆
2-bromo-N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)benzenesulfonamide	2-bromo-N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)benzenesulfonamide	分子量：429.3 密度：N/A 沸点：N/A 熔点：N/A	2034471-05-9	C₁₆H₁₈BrFN₄O₂S
2,4-dichloro-N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-5-methylbenzenesulfonamide	2,4-dichloro-N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-5-methylbenzenesulfonamide	分子量：433.3 密度：N/A 沸点：N/A 熔点：N/A	2034229-87-1	C₁₇H₁₉Cl₂FN₄O₂S
N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-1-(4-(trifluoromethyl)phenyl)methanesulfonamide	N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-1-(4-(trifluoromethyl)phenyl)methanesulfonamide	分子量：432.4 密度：N/A 沸点：N/A 熔点：N/A	2034381-19-4	C₁₈H₂₀F₄N₄O₂S
N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-3,4-dihydro-2H-benzo[b][1,4]dioxepine-7-sulfonamide	N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-3,4-dihydro-2H-benzo[b][1,4]dioxepine-7-sulfonamide	分子量：422.5 密度：N/A 沸点：N/A 熔点：N/A	2034285-68-0	C₁₉H₂₃FN₄O₄S
N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-2,3-dihydrobenzofuran-5-sulfonamide	N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-2,3-dihydrobenzofuran-5-sulfonamide	分子量：392.4 密度：N/A 沸点：N/A 熔点：N/A	2034471-11-7	C₁₈H₂₁FN₄O₃S
N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-1-isopropyl-1H-imidazole-4-sulfonamide	N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-1-isopropyl-1H-imidazole-4-sulfonamide	分子量：382.5 密度：N/A 沸点：N/A 熔点：N/A	2034258-75-6	C₁₆H₂₃FN₆O₂S
N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-2-isopropyl-1-methyl-1H-imidazole-4-sulfonamide	N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-2-isopropyl-1-methyl-1H-imidazole-4-sulfonamide	分子量：396.5 密度：N/A 沸点：N/A 熔点：N/A	2034229-91-7	C₁₇H₂₅FN₆O₂S
N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-5-sulfonamide	N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-5-sulfonamide	分子量：421.4 密度：N/A 沸点：N/A 熔点：N/A	2034615-31-9	C₁₈H₂₀FN₅O₄S
N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-2-(trifluoromethoxy)benzenesulfonamide	N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-2-(trifluoromethoxy)benzenesulfonamide	分子量：434.4 密度：N/A 沸点：N/A 熔点：N/A	2034471-15-1	C₁₇H₁₈F₄N₄O₃S
1-(benzo[d]isoxazol-3-yl)-N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)methanesulfonamide	1-(benzo[d]isoxazol-3-yl)-N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)methanesulfonamide	分子量：405.4 密度：N/A 沸点：N/A 熔点：N/A	2034615-36-4	C₁₈H₂₀FN₅O₃S
N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)benzo[c][1,2,5]thiadiazole-4-sulfonamide	N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)benzo[c][1,2,5]thiadiazole-4-sulfonamide	分子量：408.5 密度：N/A 沸点：N/A 熔点：N/A	2034471-21-9	C₁₆H₁₇FN₆O₂S₂
N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-4-(1H-pyrazol-1-yl)benzenesulfonamide	N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-4-(1H-pyrazol-1-yl)benzenesulfonamide	分子量：416.5 密度：N/A 沸点：N/A 熔点：N/A	2034229-96-2	C₁₉H₂₁FN₆O₂S
N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-4-(2-methyloxazol-4-yl)benzenesulfonamide	N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-4-(2-methyloxazol-4-yl)benzenesulfonamide	分子量：431.5 密度：N/A 沸点：N/A 熔点：N/A	2034615-39-7	C₂₀H₂₂FN₅O₃S
methyl 3-(N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)sulfamoyl)-4-methoxybenzoate	methyl 3-(N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)sulfamoyl)-4-methoxybenzoate	分子量：438.5 密度：N/A 沸点：N/A 熔点：N/A	2034471-28-6	C₁₉H₂₃FN₄O₅S
((2S,3R,4R,5R,6R)-2,4,5-Trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)sulfamic acid	((2S,3R,4R,5R,6R)-2,4,5-Trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)sulfamic acid	分子量：259.24 密度：N/A 沸点：N/A 熔点：N/A	740781-95-7	C₆H₁₃NO₈S
4-(2,5-dioxopyrrolidin-1-yl)-N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)benzenesulfonamide	4-(2,5-dioxopyrrolidin-1-yl)-N-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)benzenesulfonamide	分子量：447.5 密度：N/A 沸点：N/A 熔点：N/A	2034230-41-4	C₂₀H₂₂FN₅O₄S
N1-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-N2-(furan-2-ylmethyl)oxalamide	N1-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-N2-(furan-2-ylmethyl)oxalamide	分子量：361.4 密度：N/A 沸点：N/A 熔点：N/A	2034258-93-8	C₁₇H₂₀FN₅O₃
N1-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-N2-(5-methylisoxazol-3-yl)oxalamide	N1-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-N2-(5-methylisoxazol-3-yl)oxalamide	分子量：362.36 密度：N/A 沸点：N/A 熔点：N/A	2034381-29-6	C₁₆H₁₉FN₆O₃
N1-(2-cyanophenyl)-N2-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)oxalamide	N1-(2-cyanophenyl)-N2-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)oxalamide	分子量：382.4 密度：N/A 沸点：N/A 熔点：N/A	2034471-33-3	C₁₉H₁₉FN₆O₂
N1-(2,3-dimethylphenyl)-N2-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)oxalamide	N1-(2,3-dimethylphenyl)-N2-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)oxalamide	分子量：385.4 密度：N/A 沸点：N/A 熔点：N/A	2034230-47-0	C₂₀H₂₄FN₅O₂
N1-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-N2-(2-methoxyphenyl)oxalamide	N1-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-N2-(2-methoxyphenyl)oxalamide	分子量：387.4 密度：N/A 沸点：N/A 熔点：N/A	2034615-42-2	C₁₉H₂₂FN₅O₃
N1-(2,5-difluorophenyl)-N2-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)oxalamide	N1-(2,5-difluorophenyl)-N2-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)oxalamide	分子量：393.4 密度：N/A 沸点：N/A 熔点：N/A	2034259-01-1	C₁₈H₁₈F₃N₅O₂
N1-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-N2-(4-isopropylphenyl)oxalamide	N1-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-N2-(4-isopropylphenyl)oxalamide	分子量：399.5 密度：N/A 沸点：N/A 熔点：N/A	2034381-41-2	C₂₁H₂₆FN₅O₂
N1-(4-(dimethylamino)phenyl)-N2-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)oxalamide	N1-(4-(dimethylamino)phenyl)-N2-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)oxalamide	分子量：400.4 密度：N/A 沸点：N/A 熔点：N/A	2034230-60-7	C₂₀H₂₅FN₆O₂
N1-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-N2-(3-(methylthio)phenyl)oxalamide	N1-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-N2-(3-(methylthio)phenyl)oxalamide	分子量：403.5 密度：N/A 沸点：N/A 熔点：N/A	2034615-45-5	C₁₉H₂₂FN₅O₂S
N1-(3-chloro-4-methylphenyl)-N2-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)oxalamide	N1-(3-chloro-4-methylphenyl)-N2-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)oxalamide	分子量：405.9 密度：N/A 沸点：N/A 熔点：N/A	2034231-13-3	C₁₉H₂₁ClFN₅O₂
N1-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-N2-(2-(trifluoromethyl)phenyl)oxalamide	N1-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-N2-(2-(trifluoromethyl)phenyl)oxalamide	分子量：425.4 密度：N/A 沸点：N/A 熔点：N/A	2034259-09-9	C₁₉H₁₉F₄N₅O₂
N1-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)oxalamide	N1-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)oxalamide	分子量：281.29 密度：N/A 沸点：N/A 熔点：N/A	2034615-47-7	C₁₂H₁₆FN₅O₂
N1-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-N2-(3-(2-oxopyrrolidin-1-yl)phenyl)oxalamide	N1-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-N2-(3-(2-oxopyrrolidin-1-yl)phenyl)oxalamide	分子量：440.5 密度：N/A 沸点：N/A 熔点：N/A	2034231-26-8	C₂₂H₂₅FN₆O₃
1-((1-(5-Fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-3-isopropylurea	1-((1-(5-Fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-3-isopropylurea	分子量：295.36 密度：N/A 沸点：N/A 熔点：N/A	2034381-46-7	C₁₄H₂₂FN₅O
3-Ethoxy-5,6,7,8-tetrahydropyrido[4,3-c]pyridazine	3-Ethoxy-5,6,7,8-tetrahydropyrido[4,3-c]pyridazine	分子量：179.22 密度：N/A 沸点：N/A 熔点：N/A	1936661-11-8	C₉H₁₃N₃O
1-((1-(5-Fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-3-(2-methoxyethyl)urea	1-((1-(5-Fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-3-(2-methoxyethyl)urea	分子量：311.36 密度：N/A 沸点：N/A 熔点：N/A	2034259-17-9	C₁₄H₂₂FN₅O₂
1-(4-Fluorophenyl)-3-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)urea	1-(4-Fluorophenyl)-3-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)urea	分子量：347.4 密度：N/A 沸点：N/A 熔点：N/A	2034231-32-6	C₁₇H₁₉F₂N₅O
1-((1-(5-Fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-3-(3-phenylpropyl)urea	1-((1-(5-Fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-3-(3-phenylpropyl)urea	分子量：371.5 密度：N/A 沸点：N/A 熔点：N/A	2034615-53-5	C₂₀H₂₆FN₅O
1-(4-Ethoxyphenyl)-3-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)urea	1-(4-Ethoxyphenyl)-3-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)urea	分子量：373.4 密度：N/A 沸点：N/A 熔点：N/A	2034381-51-4	C₁₉H₂₄FN₅O₂
1-((1-(5-Fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-3-(4-methoxyphenethyl)urea	1-((1-(5-Fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-3-(4-methoxyphenethyl)urea	分子量：387.5 密度：N/A 沸点：N/A 熔点：N/A	2034259-24-8	C₂₀H₂₆FN₅O₂
1-((1-(5-Fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-3-(2-(trifluoromethyl)phenyl)urea	1-((1-(5-Fluoropyrimidin-2-yl)piperidin-4-yl)methyl)-3-(2-(trifluoromethyl)phenyl)urea	分子量：397.4 密度：N/A 沸点：N/A 熔点：N/A	2034381-58-1	C₁₈H₁₉F₄N₅O
1-(3,4-Dichlorophenyl)-3-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)urea	1-(3,4-Dichlorophenyl)-3-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)urea	分子量：398.3 密度：N/A 沸点：N/A 熔点：N/A	2034615-63-7	C₁₇H₁₈Cl₂FN₅O
1-(3,4-Dimethoxybenzyl)-3-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)urea	1-(3,4-Dimethoxybenzyl)-3-((1-(5-fluoropyrimidin-2-yl)piperidin-4-yl)methyl)urea	分子量：403.5 密度：N/A 沸点：N/A 熔点：N/A	2034259-29-3	C₂₀H₂₆FN₅O₃
1-Isopropyl-3-((1-(2-methylpyridin-4-yl)piperidin-4-yl)methyl)urea	1-Isopropyl-3-((1-(2-methylpyridin-4-yl)piperidin-4-yl)methyl)urea	分子量：290.40 密度：N/A 沸点：N/A 熔点：N/A	2034307-35-0	C₁₆H₂₆N₄O
1-(2-Methoxyethyl)-3-((1-(2-methylpyridin-4-yl)piperidin-4-yl)methyl)urea	1-(2-Methoxyethyl)-3-((1-(2-methylpyridin-4-yl)piperidin-4-yl)methyl)urea	分子量：306.40 密度：N/A 沸点：N/A 熔点：N/A	2034382-36-8	C₁₆H₂₆N₄O₂
1-((1-(2-Methylpyridin-4-yl)piperidin-4-yl)methyl)-3-(thiophen-2-yl)urea	1-((1-(2-Methylpyridin-4-yl)piperidin-4-yl)methyl)-3-(thiophen-2-yl)urea	分子量：330.4 密度：N/A 沸点：N/A 熔点：N/A	2034615-88-6	C₁₇H₂₂N₄OS
5-(2,4-Dimethylphenyl)-1-methylpyrazole	5-(2,4-Dimethylphenyl)-1-methylpyrazole	分子量：186.25 密度：N/A 沸点：N/A 熔点：N/A	1890329-23-3	C₁₂H₁₄N₂
1-Benzyl-3-((1-(2-methylpyridin-4-yl)piperidin-4-yl)methyl)urea	1-Benzyl-3-((1-(2-methylpyridin-4-yl)piperidin-4-yl)methyl)urea	分子量：338.4 密度：N/A 沸点：N/A 熔点：N/A	2034530-61-3	C₂₀H₂₆N₄O
1-(2-Chlorophenyl)-3-((1-(2-methylpyridin-4-yl)piperidin-4-yl)methyl)urea	1-(2-Chlorophenyl)-3-((1-(2-methylpyridin-4-yl)piperidin-4-yl)methyl)urea	分子量：358.9 密度：N/A 沸点：N/A 熔点：N/A	2034307-48-5	C₁₉H₂₃ClN₄O
methyl ((1-(tetrahydro-2H-thiopyran-4-yl)piperidin-4-yl)methyl)carbamate	methyl ((1-(tetrahydro-2H-thiopyran-4-yl)piperidin-4-yl)methyl)carbamate	分子量：272.41 密度：N/A 沸点：N/A 熔点：N/A	2034382-47-1	C₁₃H₂₄N₂O₂S
2-methoxy-N-((1-(tetrahydro-2H-thiopyran-4-yl)piperidin-4-yl)methyl)acetamide	2-methoxy-N-((1-(tetrahydro-2H-thiopyran-4-yl)piperidin-4-yl)methyl)acetamide	分子量：286.44 密度：N/A 沸点：N/A 熔点：N/A	2034287-37-9	C₁₄H₂₆N₂O₂S
N-((1-(tetrahydro-2H-thiopyran-4-yl)piperidin-4-yl)methyl)cyclobutanecarboxamide	N-((1-(tetrahydro-2H-thiopyran-4-yl)piperidin-4-yl)methyl)cyclobutanecarboxamide	分子量：296.5 密度：N/A 沸点：N/A 熔点：N/A	2034616-01-6	C₁₆H₂₈N₂OS