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
1h-Pyrazolo[4,3-b]pyridine,3-methyl-1-(2-phenylethyl)-	1h-Pyrazolo[4,3-b]pyridine,3-methyl-1-(2-phenylethyl)-	分子量：237.30 密度：N/A 沸点：N/A 熔点：N/A	1195655-24-3	C₁₅H₁₅N₃
1h-Pyrazolo[4,3-b]pyridine,5-methyl-1-[(4-methylphenyl)sulfonyl]-	1h-Pyrazolo[4,3-b]pyridine,5-methyl-1-[(4-methylphenyl)sulfonyl]-	分子量：287.34 密度：N/A 沸点：N/A 熔点：N/A	52090-75-2	C₁₄H₁₃N₃O₂S
1h-Pyrazolo[4,3-b]pyridine-6-carbonitrile,5-ethoxy-3-iodo-1-(triphenylmethyl)-	1h-Pyrazolo[4,3-b]pyridine-6-carbonitrile,5-ethoxy-3-iodo-1-(triphenylmethyl)-	分子量：556.4 密度：N/A 沸点：N/A 熔点：N/A	1226903-92-9	C₂₈H₂₁IN₄O
1h-Pyrazolo[4,3-b]pyridine-6-carboxylic acid,7-ethoxy-1-methyl-,ethyl ester	1h-Pyrazolo[4,3-b]pyridine-6-carboxylic acid,7-ethoxy-1-methyl-,ethyl ester	分子量：249.27 密度：N/A 沸点：N/A 熔点：N/A	59376-35-1	C₁₂H₁₅N₃O₃
1h-Pyrazolo[4,3-c]pyridin-4-amine,3-(4-chlorophenyl)-1-(1,1-dimethylethyl)-	1h-Pyrazolo[4,3-c]pyridin-4-amine,3-(4-chlorophenyl)-1-(1,1-dimethylethyl)-	分子量：300.78 密度：N/A 沸点：N/A 熔点：N/A	1151653-43-8	C₁₆H₁₇ClN₄
3,4,6-Trimethyl-1H-pyrazolo[4,3-c]pyridine	3,4,6-Trimethyl-1H-pyrazolo[4,3-c]pyridine	分子量：161.20 密度：N/A 沸点：N/A 熔点：N/A	53946-84-2	C₉H₁₁N₃
4-(Trifluoromethyl)-1H-pyrazolo[4,3-c]pyridine	4-(Trifluoromethyl)-1H-pyrazolo[4,3-c]pyridine	分子量：187.12 密度：N/A 沸点：N/A 熔点：N/A	1256792-31-0	C₇H₄F₃N₃
7-(Trifluoromethyl)-1H-pyrazolo[4,3-c]pyridine	7-(Trifluoromethyl)-1H-pyrazolo[4,3-c]pyridine	分子量：187.12 密度：N/A 沸点：N/A 熔点：N/A	1256793-74-4	C₇H₄F₃N₃
CID 76847236	CID 76847236	分子量：199.01 密度：N/A 沸点：N/A 熔点：N/A	1368318-22-2	C₅H₃BrN₄
5-Bromo-3-methyl-1H-pyrazolo[4,3-D]pyrimidine	5-Bromo-3-methyl-1H-pyrazolo[4,3-D]pyrimidine	分子量：213.03 密度：N/A 沸点：N/A 熔点：N/A	1368159-11-8	C₆H₅BrN₄
1-(3-Chloropyridin-4-yl)pyrrolidin-3-ol	1-(3-Chloropyridin-4-yl)pyrrolidin-3-ol	分子量：198.65 密度：N/A 沸点：N/A 熔点：N/A	1519325-29-1	C₉H₁₁ClN₂O
5-Methyl-1H-pyrazolo[4,3-D]pyrimidine-3-carboxylic acid	5-Methyl-1H-pyrazolo[4,3-D]pyrimidine-3-carboxylic acid	分子量：178.15 密度：N/A 沸点：N/A 熔点：N/A	1369131-37-2	C₇H₆N₄O₂
N-((4-(dimethylamino)-6-methylpyrimidin-2-yl)methyl)isobutyramide	N-((4-(dimethylamino)-6-methylpyrimidin-2-yl)methyl)isobutyramide	分子量：236.31 密度：N/A 沸点：N/A 熔点：N/A	1797619-42-1	C₁₂H₂₀N₄O
2-(2-oxo-3-(3-(pyrazin-2-yl)-1,2,4-oxadiazol-5-yl)pyridin-1(2H)-yl)-N-(4-phenylbutan-2-yl)acetamide	2-(2-oxo-3-(3-(pyrazin-2-yl)-1,2,4-oxadiazol-5-yl)pyridin-1(2H)-yl)-N-(4-phenylbutan-2-yl)acetamide	分子量：430.5 密度：N/A 沸点：N/A 熔点：N/A	1396814-77-9	C₂₃H₂₂N₆O₃
1h-Pyrrole-1-carboxylic acid,2-[6-[(dimethylamino)methyl]-2,3-dihydro-3-oxo-1h-isoindol-4-yl]-,1,1-dimethylethyl ester	1h-Pyrrole-1-carboxylic acid,2-[6-[(dimethylamino)methyl]-2,3-dihydro-3-oxo-1h-isoindol-4-yl]-,1,1-dimethylethyl ester	分子量：355.4 密度：N/A 沸点：N/A 熔点：N/A	1021345-05-0	C₂₀H₂₅N₃O₃
(R)-1-(3,5-Dichloropyridin-2-yl)ethan-1-ol	(R)-1-(3,5-Dichloropyridin-2-yl)ethan-1-ol	分子量：192.04 密度：N/A 沸点：N/A 熔点：N/A	1568026-13-0	C₇H₇Cl₂NO
4-(4-bromo-1H-pyrrolo[2,3-c]pyridin-7-yl)morpholine	4-(4-bromo-1H-pyrrolo[2,3-c]pyridin-7-yl)morpholine	分子量：282.14 密度：N/A 沸点：N/A 熔点：N/A	1354224-88-6	C₁₁H₁₂BrN₃O
N-((4-(dimethylamino)pyrimidin-2-yl)methyl)cyclohexanecarboxamide	N-((4-(dimethylamino)pyrimidin-2-yl)methyl)cyclohexanecarboxamide	分子量：262.35 密度：N/A 沸点：N/A 熔点：N/A	1797329-74-8	C₁₄H₂₂N₄O
1-(2,5-Dichlorophenyl)hexahydropyrimidine-2,4-dione	1-(2,5-Dichlorophenyl)hexahydropyrimidine-2,4-dione	分子量：259.09 密度：N/A 沸点：N/A 熔点：N/A	1542988-84-0	C₁₀H₈Cl₂N₂O₂
5-(Trifluoromethyl)-1H-pyrrolo[2,3-c]pyridine	5-(Trifluoromethyl)-1H-pyrrolo[2,3-c]pyridine	分子量：186.13 密度：N/A 沸点：N/A 熔点：N/A	1256822-99-7	C₈H₅F₃N₂
7-Bromo-5-methoxy-1H,2H,3H-pyrrolo[2,3-C]pyridine	7-Bromo-5-methoxy-1H,2H,3H-pyrrolo[2,3-C]pyridine	分子量：229.07 密度：N/A 沸点：N/A 熔点：N/A	727993-75-1	C₈H₉BrN₂O
5-(Chloromethyl)-1H-pyrrolo[3,2-B]pyridine	5-(Chloromethyl)-1H-pyrrolo[3,2-B]pyridine	分子量：166.61 密度：N/A 沸点：N/A 熔点：N/A	1206981-60-3	C₈H₇ClN₂
N-(2-(furan-3-yl)ethyl)benzo[c][1,2,5]thiadiazole-5-carboxamide	N-(2-(furan-3-yl)ethyl)benzo[c][1,2,5]thiadiazole-5-carboxamide	分子量：273.31 密度：N/A 沸点：N/A 熔点：N/A	1428367-29-6	C₁₃H₁₁N₃O₂S
1-methyl-2-(prop-2-yn-1-yl)-1H-imidazole	1-methyl-2-(prop-2-yn-1-yl)-1H-imidazole	分子量：120.15 密度：N/A 沸点：N/A 熔点：N/A	1539723-83-5	C₇H₈N₂
tert-butyl N-[5-(hydroxymethyl)adamantan-2-yl]carbamate	tert-butyl N-[5-(hydroxymethyl)adamantan-2-yl]carbamate	分子量：281.39 密度：N/A 沸点：N/A 熔点：N/A	1334412-73-5	C₁₆H₂₇NO₃
N-(3-chloro-4-cyanophenyl)-6-cyanopyridine-3-sulfonamide	N-(3-chloro-4-cyanophenyl)-6-cyanopyridine-3-sulfonamide	分子量：318.74 密度：N/A 沸点：N/A 熔点：N/A	1707799-87-8	C₁₃H₇ClN₄O₂S
(3-Bromophenyl)(4-(pyridin-2-yloxy)piperidin-1-yl)methanone	(3-Bromophenyl)(4-(pyridin-2-yloxy)piperidin-1-yl)methanone	分子量：361.2 密度：N/A 沸点：N/A 熔点：N/A	1428372-61-5	C₁₇H₁₇BrN₂O₂
Methyl 4-(4-((5-(trifluoromethyl)pyridin-2-yl)oxy)piperidine-1-carbonyl)benzoate	Methyl 4-(4-((5-(trifluoromethyl)pyridin-2-yl)oxy)piperidine-1-carbonyl)benzoate	分子量：408.4 密度：N/A 沸点：N/A 熔点：N/A	1421453-74-8	C₂₀H₁₉F₃N₂O₄
2-(1-(Phenylsulfonyl)pyrrolidin-3-yl)pyridine	2-(1-(Phenylsulfonyl)pyrrolidin-3-yl)pyridine	分子量：288.4 密度：N/A 沸点：N/A 熔点：N/A	1421459-65-5	C₁₅H₁₆N₂O₂S
2-(3-Chlorophenyl)-6,7-dihydropyrazolo[1,5-A]pyrazin-4(5H)-one	2-(3-Chlorophenyl)-6,7-dihydropyrazolo[1,5-A]pyrazin-4(5H)-one	分子量：247.68 密度：N/A 沸点：N/A 熔点：N/A	1553713-01-1	C₁₂H₁₀ClN₃O
(E)-2-(2-Chlorophenyl)-N-(5-thiophen-2-yl-1,2,4-oxadiazol-3-yl)ethenesulfonamide	(E)-2-(2-Chlorophenyl)-N-(5-thiophen-2-yl-1,2,4-oxadiazol-3-yl)ethenesulfonamide	分子量：367.8 密度：N/A 沸点：N/A 熔点：N/A	1798431-09-0	C₁₄H₁₀ClN₃O₃S₂
2-(2-Fluorophenyl)-6,7-dihydropyrazolo[1,5-A]pyrazin-4(5H)-one	2-(2-Fluorophenyl)-6,7-dihydropyrazolo[1,5-A]pyrazin-4(5H)-one	分子量：231.23 密度：N/A 沸点：N/A 熔点：N/A	1956332-22-1	C₁₂H₁₀FN₃O
2-Chloro-N-(2-chloro-3-methylphenyl)acetamide	2-Chloro-N-(2-chloro-3-methylphenyl)acetamide	分子量：218.08 密度：N/A 沸点：N/A 熔点：N/A	99585-89-4	C₉H₉Cl₂NO
N-(2-phenoxypyrimidin-5-yl)-1-phenylmethanesulfonamide	N-(2-phenoxypyrimidin-5-yl)-1-phenylmethanesulfonamide	分子量：341.4 密度：N/A 沸点：N/A 熔点：N/A	1428357-20-3	C₁₇H₁₅N₃O₃S
2-[[2-[(4-Fluorophenyl)amino]-2-oxoethyl]amino]-benzoic acid	2-[[2-[(4-Fluorophenyl)amino]-2-oxoethyl]amino]-benzoic acid	分子量：288.27 密度：N/A 沸点：N/A 熔点：N/A	1394021-66-9	C₁₅H₁₃FN₂O₃
3-(3-Methyl-2,4-dioxo-3,4-dihydroquinazolin-1(2H)-yl)propanenitrile	3-(3-Methyl-2,4-dioxo-3,4-dihydroquinazolin-1(2H)-yl)propanenitrile	分子量：229.23 密度：N/A 沸点：N/A 熔点：N/A	1394021-63-6	C₁₂H₁₁N₃O₂
N-(2-phenoxypyrimidin-5-yl)-4-phenylbutanamide	N-(2-phenoxypyrimidin-5-yl)-4-phenylbutanamide	分子量：333.4 密度：N/A 沸点：N/A 熔点：N/A	1396579-38-6	C₂₀H₁₉N₃O₂
N-(2-methoxypyrimidin-5-yl)-1-(methylsulfonyl)piperidine-4-carboxamide	N-(2-methoxypyrimidin-5-yl)-1-(methylsulfonyl)piperidine-4-carboxamide	分子量：314.36 密度：N/A 沸点：N/A 熔点：N/A	1428364-67-3	C₁₂H₁₈N₄O₄S
1-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-3-(2-((2-methyl-6-((4-methylpyridin-2-yl)amino)pyrimidin-4-yl)amino)ethyl)urea	1-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-3-(2-((2-methyl-6-((4-methylpyridin-2-yl)amino)pyrimidin-4-yl)amino)ethyl)urea	分子量：435.5 密度：N/A 沸点：N/A 熔点：N/A	1428378-12-4	C₂₂H₂₅N₇O₃
2-(2-fluorophenoxy)-N-(2-(2-(pyrimidin-2-yl)-1H-imidazol-1-yl)ethyl)acetamide	2-(2-fluorophenoxy)-N-(2-(2-(pyrimidin-2-yl)-1H-imidazol-1-yl)ethyl)acetamide	分子量：341.34 密度：N/A 沸点：N/A 熔点：N/A	1448063-06-6	C₁₇H₁₆FN₅O₂
N-(2-((3-cyclopropyl-1,2,4-oxadiazol-5-yl)methyl)phenyl)-2,2-diphenylacetamide	N-(2-((3-cyclopropyl-1,2,4-oxadiazol-5-yl)methyl)phenyl)-2,2-diphenylacetamide	分子量：409.5 密度：N/A 沸点：N/A 熔点：N/A	1797067-49-2	C₂₆H₂₃N₃O₂
2-azido-N-(4-butylphenyl)acetamide	2-azido-N-(4-butylphenyl)acetamide	分子量：232.28 密度：N/A 沸点：N/A 熔点：N/A	1486729-34-3	C₁₂H₁₆N₄O
Picras-3-en-16-one, 11,20-epoxy-15-(I(2)-D-glucopyranosyloxy)-1,2,11,12-tetrahydroxy-, (1I(2),2I+/-,11I(2),12I+/-,15I(2))-	Picras-3-en-16-one, 11,20-epoxy-15-(I(2)-D-glucopyranosyloxy)-1,2,11,12-tetrahydroxy-, (1I(2),2I+/-,11I(2),12I+/-,15I(2))-	分子量：558.6 密度：N/A 沸点：N/A 熔点：N/A	89202-77-7	C₂₆H₃₈O₁₃
2,3-Dihydro-1-benzofuran-7-carboximidamide	2,3-Dihydro-1-benzofuran-7-carboximidamide	分子量：162.19 密度：N/A 沸点：N/A 熔点：N/A	1524158-27-7	C₉H₁₀N₂O
(R)-2-Feruloyl-1-(4-Hydroxyphenyl)-1,2-ethanediol	(R)-2-Feruloyl-1-(4-Hydroxyphenyl)-1,2-ethanediol	分子量：330.3 密度：N/A 沸点：N/A 熔点：N/A	177795-29-8	C₁₈H₁₈O₆
5-Bromo-1,2,4-thiadiazole-3-carboxylic acid	5-Bromo-1,2,4-thiadiazole-3-carboxylic acid	分子量：209.02 密度：N/A 沸点：N/A 熔点：N/A	1253791-60-4	C₃HBrN₂O₂S
Benzyl 3-{[(tert-butoxy)carbonyl](2-hydroxyethyl)amino}pyrrolidine-1-carboxylate	Benzyl 3-{[(tert-butoxy)carbonyl](2-hydroxyethyl)amino}pyrrolidine-1-carboxylate	分子量：364.4 密度：N/A 沸点：N/A 熔点：N/A	2680808-52-8	C₁₉H₂₈N₂O₅
L-Leucyl-L-histidyl-L-prolyl-L-phenylalanyl-L-asparaginyl-L-valine	L-Leucyl-L-histidyl-L-prolyl-L-phenylalanyl-L-asparaginyl-L-valine	分子量：725.8 密度：N/A 沸点：N/A 熔点：N/A	373390-49-9	C₃₅H₅₁N₉O₈
N-(2-(2-(pyrimidin-2-yl)-1H-imidazol-1-yl)ethyl)-2-(trifluoromethyl)benzamide	N-(2-(2-(pyrimidin-2-yl)-1H-imidazol-1-yl)ethyl)-2-(trifluoromethyl)benzamide	分子量：361.32 密度：N/A 沸点：N/A 熔点：N/A	1448057-07-5	C₁₇H₁₄F₃N₅O
Tert-butyl 2-[6-(cyanomethyl)pyridin-3-yl]acetate	Tert-butyl 2-[6-(cyanomethyl)pyridin-3-yl]acetate	分子量：232.28 密度：N/A 沸点：N/A 熔点：N/A	1432619-77-6	C₁₃H₁₆N₂O₂