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
1-(4-ethoxyphenyl)-3-(4-((4-(3-(p-tolyl)-1,2,4-oxadiazol-5-yl)-1H-imidazol-1-yl)methyl)phenyl)urea	1-(4-ethoxyphenyl)-3-(4-((4-(3-(p-tolyl)-1,2,4-oxadiazol-5-yl)-1H-imidazol-1-yl)methyl)phenyl)urea	分子量：494.5 密度：N/A 沸点：N/A 熔点：N/A	931314-44-2	C₂₈H₂₆N₆O₃
3-(phenylsulfonyl)-1,6-naphthyridin-4(1H)-one	3-(phenylsulfonyl)-1,6-naphthyridin-4(1H)-one	分子量：286.31 密度：N/A 沸点：N/A 熔点：N/A	1031606-06-0	C₁₄H₁₀N₂O₃S
N-(4-bromophenyl)-2-((3-(4-ethylphenyl)-5-methyl-4-oxo-7-phenyl-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidin-2-yl)thio)acetamide	N-(4-bromophenyl)-2-((3-(4-ethylphenyl)-5-methyl-4-oxo-7-phenyl-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidin-2-yl)thio)acetamide	分子量：573.5 密度：N/A 沸点：N/A 熔点：N/A	933195-25-6	C₂₉H₂₅BrN₄O₂S
1-({4-chloro-5,6-dimethylthieno[2,3-d]pyrimidin-2-yl}methyl)-4-nitro-1H-imidazole	1-({4-chloro-5,6-dimethylthieno[2,3-d]pyrimidin-2-yl}methyl)-4-nitro-1H-imidazole	分子量：323.76 密度：N/A 沸点：N/A 熔点：N/A	1097126-83-4	C₁₂H₁₀ClN₅O₂S
N-(3,4-dimethoxyphenyl)-2-((3-(4-ethylphenyl)-5-methyl-4-oxo-7-phenyl-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidin-2-yl)thio)acetamide	N-(3,4-dimethoxyphenyl)-2-((3-(4-ethylphenyl)-5-methyl-4-oxo-7-phenyl-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidin-2-yl)thio)acetamide	分子量：554.7 密度：N/A 沸点：N/A 熔点：N/A	933195-30-3	C₃₁H₃₀N₄O₄S
N-(3-chloro-4-methoxyphenyl)-2-((3-(4-ethylphenyl)-5-methyl-4-oxo-7-phenyl-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidin-2-yl)thio)acetamide	N-(3-chloro-4-methoxyphenyl)-2-((3-(4-ethylphenyl)-5-methyl-4-oxo-7-phenyl-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidin-2-yl)thio)acetamide	分子量：559.1 密度：N/A 沸点：N/A 熔点：N/A	933220-82-7	C₃₀H₂₇ClN₄O₃S
N-(2-chloro-5-(trifluoromethyl)phenyl)-2-((3-(4-ethylphenyl)-5-methyl-4-oxo-7-phenyl-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidin-2-yl)thio)acetamide	N-(2-chloro-5-(trifluoromethyl)phenyl)-2-((3-(4-ethylphenyl)-5-methyl-4-oxo-7-phenyl-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidin-2-yl)thio)acetamide	分子量：597.0 密度：N/A 沸点：N/A 熔点：N/A	933220-86-1	C₃₀H₂₄ClF₃N₄O₂S
3-(4-fluoro-3-methylphenyl)-2-methyl-5,6-dihydro-2H-2,6-methanobenzo[g][1,3,5]oxadiazocine-4(3H)-thione	3-(4-fluoro-3-methylphenyl)-2-methyl-5,6-dihydro-2H-2,6-methanobenzo[g][1,3,5]oxadiazocine-4(3H)-thione	分子量：328.4 密度：N/A 沸点：N/A 熔点：N/A	1019137-31-5	C₁₈H₁₇FN₂OS
2-((6-(2-ethoxyphenyl)-3-(4-ethylphenyl)-4-oxo-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-(3-ethylphenyl)acetamide	2-((6-(2-ethoxyphenyl)-3-(4-ethylphenyl)-4-oxo-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-(3-ethylphenyl)acetamide	分子量：569.7 密度：N/A 沸点：N/A 熔点：N/A	933221-14-8	C₃₂H₃₁N₃O₃S₂
6-chloro-4-(2-fluorophenyl)-2H-1,2,3-benzothiadiazine 1,1-dioxide	6-chloro-4-(2-fluorophenyl)-2H-1,2,3-benzothiadiazine 1,1-dioxide	分子量：310.73 密度：N/A 沸点：N/A 熔点：N/A	1031557-71-7	C₁₃H₈ClFN₂O₂S
3-ethyl-7-phenyl-2-thioxo-1,2,3,5-tetrahydro-4H-pyrrolo[3,2-d]pyrimidin-4-one	3-ethyl-7-phenyl-2-thioxo-1,2,3,5-tetrahydro-4H-pyrrolo[3,2-d]pyrimidin-4-one	分子量：271.34 密度：N/A 沸点：N/A 熔点：N/A	933196-65-7	C₁₄H₁₃N₃OS
3-(4-oxo-4,5-dihydro[1,2,4]triazolo[4,3-a]quinoxalin-1-yl)-N-(propan-2-yl)propanamide	3-(4-oxo-4,5-dihydro[1,2,4]triazolo[4,3-a]quinoxalin-1-yl)-N-(propan-2-yl)propanamide	分子量：299.33 密度：N/A 沸点：N/A 熔点：N/A	1031669-29-0	C₁₅H₁₇N₅O₂
4-((4-(3-(3-fluorophenyl)-1,2,4-oxadiazol-5-yl)-1H-imidazol-1-yl)methyl)aniline	4-((4-(3-(3-fluorophenyl)-1,2,4-oxadiazol-5-yl)-1H-imidazol-1-yl)methyl)aniline	分子量：335.3 密度：N/A 沸点：N/A 熔点：N/A	1031578-13-8	C₁₈H₁₄FN₅O
2-((3-(4-ethoxyphenyl)-6-methyl-7-oxo-2-thioxo-2,3,6,7-tetrahydrothiazolo[4,5-d]pyrimidin-5-yl)thio)-N-(3-ethylphenyl)acetamide	2-((3-(4-ethoxyphenyl)-6-methyl-7-oxo-2-thioxo-2,3,6,7-tetrahydrothiazolo[4,5-d]pyrimidin-5-yl)thio)-N-(3-ethylphenyl)acetamide	分子量：512.7 密度：N/A 沸点：N/A 熔点：N/A	1112419-10-9	C₂₄H₂₄N₄O₃S₃
N-(2-chloro-4-methylphenyl)-2-((3-(4-ethoxyphenyl)-6-methyl-7-oxo-2-thioxo-2,3,6,7-tetrahydrothiazolo[4,5-d]pyrimidin-5-yl)thio)acetamide	N-(2-chloro-4-methylphenyl)-2-((3-(4-ethoxyphenyl)-6-methyl-7-oxo-2-thioxo-2,3,6,7-tetrahydrothiazolo[4,5-d]pyrimidin-5-yl)thio)acetamide	分子量：533.1 密度：N/A 沸点：N/A 熔点：N/A	1112419-11-0	C₂₃H₂₁ClN₄O₃S₃
4-({4-[3-(3,4-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]-1H-imidazol-1-yl}methyl)aniline	4-({4-[3-(3,4-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]-1H-imidazol-1-yl}methyl)aniline	分子量：377.4 密度：N/A 沸点：N/A 熔点：N/A	1031606-14-0	C₂₀H₁₉N₅O₃
Tert-butyl 2-((2-((3-chloro-4-fluorophenyl)amino)-2-oxoethyl)thio)-3-(thiophen-2-yl)-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxylate	Tert-butyl 2-((2-((3-chloro-4-fluorophenyl)amino)-2-oxoethyl)thio)-3-(thiophen-2-yl)-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxylate	分子量：537.1 密度：N/A 沸点：N/A 熔点：N/A	1019186-87-8	C₂₄H₂₆ClFN₄O₃S₂
Tert-butyl 2-((2-((2,3-dihydrobenzo[b][1,4]dioxin-6-yl)amino)-2-oxoethyl)thio)-3-(thiophen-2-yl)-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxylate	Tert-butyl 2-((2-((2,3-dihydrobenzo[b][1,4]dioxin-6-yl)amino)-2-oxoethyl)thio)-3-(thiophen-2-yl)-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxylate	分子量：542.7 密度：N/A 沸点：N/A 熔点：N/A	1019186-88-9	C₂₆H₃₀N₄O₅S₂
N-(4-chlorobenzyl)-3-tosylquinoxalin-2-amine	N-(4-chlorobenzyl)-3-tosylquinoxalin-2-amine	分子量：423.9 密度：N/A 沸点：N/A 熔点：N/A	1189648-09-6	C₂₂H₁₈ClN₃O₂S
N-(2-chlorobenzyl)-3-tosylquinoxalin-2-amine	N-(2-chlorobenzyl)-3-tosylquinoxalin-2-amine	分子量：423.9 密度：N/A 沸点：N/A 熔点：N/A	1189463-79-3	C₂₂H₁₈ClN₃O₂S
3-(5-amino-1H-pyrazol-1-yl)-1lambda6-thiolane-1,1-dione	3-(5-amino-1H-pyrazol-1-yl)-1lambda6-thiolane-1,1-dione	分子量：201.25 密度：N/A 沸点：N/A 熔点：N/A	1152816-64-2	C₇H₁₁N₃O₂S
N-cyclopentyl-4-(3-methylbutyl)-5-oxo-1-sulfanylidene-1H,2H,4H,5H-[1,2,4]triazolo[4,3-a]quinazoline-8-carboxamide	N-cyclopentyl-4-(3-methylbutyl)-5-oxo-1-sulfanylidene-1H,2H,4H,5H-[1,2,4]triazolo[4,3-a]quinazoline-8-carboxamide	分子量：399.5 密度：N/A 沸点：N/A 熔点：N/A	1019187-31-5	C₂₀H₂₅N₅O₂S
N-cyclohexyl-4-(3-methylbutyl)-5-oxo-1-sulfanylidene-1H,2H,4H,5H-[1,2,4]triazolo[4,3-a]quinazoline-8-carboxamide	N-cyclohexyl-4-(3-methylbutyl)-5-oxo-1-sulfanylidene-1H,2H,4H,5H-[1,2,4]triazolo[4,3-a]quinazoline-8-carboxamide	分子量：413.5 密度：N/A 沸点：N/A 熔点：N/A	1019187-33-7	C₂₁H₂₇N₅O₂S
4-(thiophen-2-ylmethyl)-1-thioxo-1,2-dihydrothieno[2,3-e][1,2,4]triazolo[4,3-a]pyrimidin-5(4H)-one	4-(thiophen-2-ylmethyl)-1-thioxo-1,2-dihydrothieno[2,3-e][1,2,4]triazolo[4,3-a]pyrimidin-5(4H)-one	分子量：320.4 密度：N/A 沸点：N/A 熔点：N/A	1019137-62-2	C₁₂H₈N₄OS₃
8-fluoro-3-(3-methoxybenzyl)-3,5-dihydro-4H-pyrimido[5,4-b]indol-4-one	8-fluoro-3-(3-methoxybenzyl)-3,5-dihydro-4H-pyrimido[5,4-b]indol-4-one	分子量：323.3 密度：N/A 沸点：N/A 熔点：N/A	1031606-23-1	C₁₈H₁₄FN₃O₂
ethyl (4-oxo-7-phenyl-2-thioxo-1,2,4,5-tetrahydro-3H-pyrrolo[3,2-d]pyrimidin-3-yl)acetate	ethyl (4-oxo-7-phenyl-2-thioxo-1,2,4,5-tetrahydro-3H-pyrrolo[3,2-d]pyrimidin-3-yl)acetate	分子量：329.4 密度：N/A 沸点：N/A 熔点：N/A	1019137-65-5	C₁₆H₁₅N₃O₃S
2-chloro-N-(2,6,6-trimethyl-5,7-dihydro-4H-1-benzofuran-4-yl)acetamide	2-chloro-N-(2,6,6-trimethyl-5,7-dihydro-4H-1-benzofuran-4-yl)acetamide	分子量：255.74 密度：N/A 沸点：N/A 熔点：N/A	1155499-16-3	C₁₃H₁₈ClNO₂
3-benzyl-7-phenyl-2-sulfanyl-3,5-dihydro-4H-pyrrolo[3,2-d]pyrimidin-4-one	3-benzyl-7-phenyl-2-sulfanyl-3,5-dihydro-4H-pyrrolo[3,2-d]pyrimidin-4-one	分子量：333.4 密度：N/A 沸点：N/A 熔点：N/A	1019137-68-8	C₁₉H₁₅N₃OS
7-phenyl-2-thioxo-1,2,3,5-tetrahydro-4H-pyrrolo[3,2-d]pyrimidin-4-one	7-phenyl-2-thioxo-1,2,3,5-tetrahydro-4H-pyrrolo[3,2-d]pyrimidin-4-one	分子量：243.29 密度：N/A 沸点：N/A 熔点：N/A	1019137-74-6	C₁₂H₉N₃OS
3-(2-chlorobenzyl)-8-fluoro-3,5-dihydro-4H-pyrimido[5,4-b]indol-4-one	3-(2-chlorobenzyl)-8-fluoro-3,5-dihydro-4H-pyrimido[5,4-b]indol-4-one	分子量：327.7 密度：N/A 沸点：N/A 熔点：N/A	1031557-91-1	C₁₇H₁₁ClFN₃O
3-(4-Fluorophenyl)-N-(4-methylpyridin-2-YL)-3-(1-oxo-2,3-dihydro-1H-isoindol-2-YL)propanamide	3-(4-Fluorophenyl)-N-(4-methylpyridin-2-YL)-3-(1-oxo-2,3-dihydro-1H-isoindol-2-YL)propanamide	分子量：389.4 密度：N/A 沸点：N/A 熔点：N/A	1031992-56-9	C₂₃H₂₀FN₃O₂
1-(Pyridin-4-yl)piperidine-4-carboxylic acid dihydrochloride	1-(Pyridin-4-yl)piperidine-4-carboxylic acid dihydrochloride	分子量：279.16 密度：N/A 沸点：N/A 熔点：N/A	1209880-00-1	C₁₁H₁₆Cl₂N₂O₂
4,4',6-Trifluorobiphenyl-3-amine	4,4',6-Trifluorobiphenyl-3-amine	分子量：223.19 密度：N/A 沸点：N/A 熔点：N/A	2367-24-0	C₁₂H₈F₃N
2'-Fluoro-5-methoxybiphenyl-2-carboxaldehyde	2'-Fluoro-5-methoxybiphenyl-2-carboxaldehyde	分子量：230.23 密度：N/A 沸点：N/A 熔点：N/A	1214331-14-2	C₁₄H₁₁FO₂
2'-Fluoro-6-methyl-[1,1'-biphenyl]-3-carboxylic acid	2'-Fluoro-6-methyl-[1,1'-biphenyl]-3-carboxylic acid	分子量：230.23 密度：N/A 沸点：N/A 熔点：N/A	1214372-27-6	C₁₄H₁₁FO₂
3'-Fluoro-6-methyl-[1,1'-biphenyl]-3-carboxylic acid	3'-Fluoro-6-methyl-[1,1'-biphenyl]-3-carboxylic acid	分子量：230.23 密度：N/A 沸点：N/A 熔点：N/A	1214331-53-9	C₁₄H₁₁FO₂
2'-Fluoro-3-methylbiphenyl-4-carboxylic acid	2'-Fluoro-3-methylbiphenyl-4-carboxylic acid	分子量：230.23 密度：N/A 沸点：N/A 熔点：N/A	1008773-85-0	C₁₄H₁₁FO₂
3,5-Difluorobiphenyl-4-amine	3,5-Difluorobiphenyl-4-amine	分子量：205.20 密度：N/A 沸点：N/A 熔点：N/A	1208083-15-1	C₁₂H₉F₂N
6-Methyl-2-phenylpyridin-3-amine	6-Methyl-2-phenylpyridin-3-amine	分子量：184.24 密度：N/A 沸点：N/A 熔点：N/A	1214387-73-1	C₁₂H₁₂N₂
4-Methyl-6-phenylpyridin-3-amine	4-Methyl-6-phenylpyridin-3-amine	分子量：184.24 密度：N/A 沸点：N/A 熔点：N/A	1214363-57-1	C₁₂H₁₂N₂
N-(4-acetylphenyl)-3-(4-bromo-1H-indol-1-yl)propanamide	N-(4-acetylphenyl)-3-(4-bromo-1H-indol-1-yl)propanamide	分子量：385.3 密度：N/A 沸点：N/A 熔点：N/A	1219547-82-6	C₁₉H₁₇BrN₂O₂
N-Hexyl-4-(1H-pyrazol-3-yl)benzenamine	N-Hexyl-4-(1H-pyrazol-3-yl)benzenamine	分子量：243.35 密度：N/A 沸点：N/A 熔点：N/A	1157140-45-8	C₁₅H₂₁N₃
4'-[(2-Phenylethyl)carbamoyl][2,2'-Bipyridine]-4-Carboxylic Acid	4'-[(2-Phenylethyl)carbamoyl][2,2'-Bipyridine]-4-Carboxylic Acid	分子量：347.4 密度：N/A 沸点：N/A 熔点：N/A	1222184-66-8	C₂₀H₁₇N₃O₃
2-(Benzylsulfanyl)-3-(3-methoxyphenyl)-7-(morpholine-4-carbonyl)-3,4-dihydroquinazolin-4-one	2-(Benzylsulfanyl)-3-(3-methoxyphenyl)-7-(morpholine-4-carbonyl)-3,4-dihydroquinazolin-4-one	分子量：487.6 密度：N/A 沸点：N/A 熔点：N/A	1115305-93-5	C₂₇H₂₅N₃O₄S
2-Chloro-8-fluoro-4-methylquinoline	2-Chloro-8-fluoro-4-methylquinoline	分子量：195.62 密度：N/A 沸点：N/A 熔点：N/A	1171919-59-7	C₁₀H₇ClFN
3-((4-Methoxyphenyl)amino)-1,7-dimethyl-2,3-dihydro-1H-inden-4-ol	3-((4-Methoxyphenyl)amino)-1,7-dimethyl-2,3-dihydro-1H-inden-4-ol	分子量：283.4 密度：N/A 沸点：N/A 熔点：N/A	1020963-30-7	C₁₈H₂₁NO₂
1-(3-Bromophenyl)-2-(4-methoxyphenyl)ethane-1,2-dione	1-(3-Bromophenyl)-2-(4-methoxyphenyl)ethane-1,2-dione	分子量：319.15 密度：N/A 沸点：N/A 熔点：N/A	860599-82-2	C₁₅H₁₁BrO₃
N-[2-amino-4-[4-[[(1,1-dimethylethoxy)carbonyl]amino]-3-fluorophenoxy]-3-pyridinyl]carbamic acid ethyl ester	N-[2-amino-4-[4-[[(1,1-dimethylethoxy)carbonyl]amino]-3-fluorophenoxy]-3-pyridinyl]carbamic acid ethyl ester	分子量：406.4 密度：N/A 沸点：N/A 熔点：N/A	1160825-89-7	C₁₉H₂₃FN₄O₅
Ethyl 4-(4-amino-3-fluorophenoxy)-2-aminopyridin-3-yl-carbamate	Ethyl 4-(4-amino-3-fluorophenoxy)-2-aminopyridin-3-yl-carbamate	分子量：306.29 密度：N/A 沸点：N/A 熔点：N/A	1160825-91-1	C₁₄H₁₅FN₄O₃
7-(4-Amino-3-fluorophenoxy)-1-N-methyl-1H-imidazo[4,5-b]pyridin-2(3H)-one	7-(4-Amino-3-fluorophenoxy)-1-N-methyl-1H-imidazo[4,5-b]pyridin-2(3H)-one	分子量：274.25 密度：N/A 沸点：N/A 熔点：N/A	1160825-67-1	C₁₃H₁₁FN₄O₂