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
Ethyl 3-[(2-hydroxybenzyl)amino]benzoate	Ethyl 3-[(2-hydroxybenzyl)amino]benzoate	分子量：271.31 密度：N/A 沸点：N/A 熔点：N/A	1096937-37-9	C₁₆H₁₇NO₃
N-benzyl-2-({1-[(5-methyl-2-phenyl-1,3-oxazol-4-yl)methyl]-1H-benzimidazol-2-yl}thio)acetamide	N-benzyl-2-({1-[(5-methyl-2-phenyl-1,3-oxazol-4-yl)methyl]-1H-benzimidazol-2-yl}thio)acetamide	分子量：468.6 密度：N/A 沸点：N/A 熔点：N/A	1115490-87-3	C₂₇H₂₄N₄O₂S
2-[Pyridazin-3(2H)-one]thiazole-4-boronic acid pinacol ester	2-[Pyridazin-3(2H)-one]thiazole-4-boronic acid pinacol ester	分子量：305.2 密度：N/A 沸点：N/A 熔点：N/A	2096333-22-9	C₁₃H₁₆BN₃O₃S
2-[Pyridazin-3(2H)-one]pyridine-4-boronic acid pinacol ester	2-[Pyridazin-3(2H)-one]pyridine-4-boronic acid pinacol ester	分子量：299.13 密度：N/A 沸点：N/A 熔点：N/A	2096337-68-5	C₁₅H₁₈BN₃O₃
tert-Butyl 4-chloro-5,6-dihydropyridine-1(2H)-carboxylate	tert-Butyl 4-chloro-5,6-dihydropyridine-1(2H)-carboxylate	分子量：217.69 密度：N/A 沸点：N/A 熔点：N/A	1065067-34-6	C₁₀H₁₆ClNO₂
4-Bromo-2-(3-methoxyphenyl)pyrimidine	4-Bromo-2-(3-methoxyphenyl)pyrimidine	分子量：265.11 密度：N/A 沸点：N/A 熔点：N/A	1142195-78-5	C₁₁H₉BrN₂O
4-(5-Bromothiazol-2-YL)aniline	4-(5-Bromothiazol-2-YL)aniline	分子量：255.14 密度：N/A 沸点：N/A 熔点：N/A	1215071-51-4	C₉H₇BrN₂S
6-Chloro-3-nitro-N-(4-(trifluoromethyl)phenyl)pyridin-2-amine	6-Chloro-3-nitro-N-(4-(trifluoromethyl)phenyl)pyridin-2-amine	分子量：317.65 密度：N/A 沸点：N/A 熔点：N/A	1097004-70-0	C₁₂H₇ClF₃N₃O₂
Methyl 2-((4-methoxybenzyl)amino)benzoate	Methyl 2-((4-methoxybenzyl)amino)benzoate	分子量：271.31 密度：N/A 沸点：N/A 熔点：N/A	1096998-03-6	C₁₆H₁₇NO₃
4-(3-(Trifluoromethyl)phenyl)pyridin-2-amine	4-(3-(Trifluoromethyl)phenyl)pyridin-2-amine	分子量：238.21 密度：N/A 沸点：N/A 熔点：N/A	1215072-89-1	C₁₂H₉F₃N₂
2,4-Dichloro-6-(2-fluorophenyl)-1,3,5-triazine	2,4-Dichloro-6-(2-fluorophenyl)-1,3,5-triazine	分子量：244.05 密度：N/A 沸点：N/A 熔点：N/A	778-67-6	C₉H₄Cl₂FN₃
2,4-Dichloro-6-[2-(trifluoromethyl)phenyl]-1,3,5-triazine	2,4-Dichloro-6-[2-(trifluoromethyl)phenyl]-1,3,5-triazine	分子量：294.06 密度：N/A 沸点：N/A 熔点：N/A	1227958-73-7	C₁₀H₄Cl₂F₃N₃
2,4-Dichloro-6-[3-(trifluoromethyl)phenyl]-1,3,5-triazine	2,4-Dichloro-6-[3-(trifluoromethyl)phenyl]-1,3,5-triazine	分子量：294.06 密度：N/A 沸点：N/A 熔点：N/A	2062-30-8	C₁₀H₄Cl₂F₃N₃
2-ethoxy-N-(3-hydroxypropyl)-4,5-dimethylbenzenesulfonamide	2-ethoxy-N-(3-hydroxypropyl)-4,5-dimethylbenzenesulfonamide	分子量：287.38 密度：N/A 沸点：N/A 熔点：N/A	1087639-60-8	C₁₃H₂₁NO₄S
2-ethoxy-N-(3-hydroxypropyl)-5-isopropyl-4-methylbenzenesulfonamide	2-ethoxy-N-(3-hydroxypropyl)-5-isopropyl-4-methylbenzenesulfonamide	分子量：315.4 密度：N/A 沸点：N/A 熔点：N/A	1087639-61-9	C₁₅H₂₅NO₄S
2-methoxy-5-methyl-N-(6-methyl-2-pyridinyl)benzenesulfonamide	2-methoxy-5-methyl-N-(6-methyl-2-pyridinyl)benzenesulfonamide	分子量：292.36 密度：N/A 沸点：N/A 熔点：N/A	1087639-63-1	C₁₄H₁₆N₂O₃S
(1R,2R)-1,2-Bis(3,5-dimethylphenyl)-1,2-ethylenediamine Phosphate	(1R,2R)-1,2-Bis(3,5-dimethylphenyl)-1,2-ethylenediamine Phosphate	分子量：366.4 密度：N/A 沸点：N/A 熔点：N/A	1391500-72-3	C₁₈H₂₇N₂O₄P
(1S,2S)-1,2-Bis(3,5-dimethylphenyl)-1,2-ethylenediamine Phosphate	(1S,2S)-1,2-Bis(3,5-dimethylphenyl)-1,2-ethylenediamine Phosphate	分子量：366.4 密度：N/A 沸点：N/A 熔点：N/A	1391545-11-1	C₁₈H₂₇N₂O₄P
4-ethoxy-3-methyl-N-(6-methyl-2-pyridinyl)benzenesulfonamide	4-ethoxy-3-methyl-N-(6-methyl-2-pyridinyl)benzenesulfonamide	分子量：306.4 密度：N/A 沸点：N/A 熔点：N/A	1087639-65-3	C₁₅H₁₈N₂O₃S
3-Ethyl-6,7-dihydro-5H-pyrrolo[2,1-c][1,2,4]triazole	3-Ethyl-6,7-dihydro-5H-pyrrolo[2,1-c][1,2,4]triazole	分子量：137.18 密度：N/A 沸点：N/A 熔点：N/A	1000576-63-5	C₇H₁₁N₃
1-Methyl-5-propylpiperazin-2-one	1-Methyl-5-propylpiperazin-2-one	分子量：156.23 密度：N/A 沸点：N/A 熔点：N/A	1000577-27-4	C₈H₁₆N₂O
4-(3-Tert-butyl-5-methylphenyl)-1H-pyrazol-3-amine hydrochloride	4-(3-Tert-butyl-5-methylphenyl)-1H-pyrazol-3-amine hydrochloride	分子量：265.78 密度：N/A 沸点：N/A 熔点：N/A	1177349-64-2	C₁₄H₂₀ClN₃
2-Naphthalen-2-yl-methyl-2,5-diazabicyclo[2.2.1]heptane ditrifluoroacetate	2-Naphthalen-2-yl-methyl-2,5-diazabicyclo[2.2.1]heptane ditrifluoroacetate	分子量：466.4 密度：N/A 沸点：N/A 熔点：N/A	1208077-74-0	C₂₀H₂₀F₆N₂O₄
N-(3-Aminophenyl)-1-methyl-1H-pyrazole-3-carboxamide hydrochloride	N-(3-Aminophenyl)-1-methyl-1H-pyrazole-3-carboxamide hydrochloride	分子量：252.70 密度：N/A 沸点：N/A 熔点：N/A	1184963-84-5	C₁₁H₁₃ClN₄O
(4S,5S)-2-[3,5-bis[(4S,5S)-4,5-diphenyl-4,5-dihydro-1H-imidazol-2-yl]phenyl]-4,5-diphenyl-4,5-dihydro-1H-imidazole	(4S,5S)-2-[3,5-bis[(4S,5S)-4,5-diphenyl-4,5-dihydro-1H-imidazol-2-yl]phenyl]-4,5-diphenyl-4,5-dihydro-1H-imidazole	分子量：738.9 密度：N/A 沸点：N/A 熔点：N/A	1208332-97-1	C₅₁H₄₂N₆
3-({[(2,5-dimethylphenyl)amino]carbonyl}amino)-N-(3-fluorobenzyl)-4-pyrrolidin-1-ylbenzamide	3-({[(2,5-dimethylphenyl)amino]carbonyl}amino)-N-(3-fluorobenzyl)-4-pyrrolidin-1-ylbenzamide	分子量：460.5 密度：N/A 沸点：N/A 熔点：N/A	933242-94-5	C₂₇H₂₉FN₄O₂
4-[(Butylethylamino)sulfonyl]-N-(6-chloro-2-benzothiazolyl)-N-[2-(diethylamino)ethyl]benzamide	4-[(Butylethylamino)sulfonyl]-N-(6-chloro-2-benzothiazolyl)-N-[2-(diethylamino)ethyl]benzamide	分子量：551.2 密度：N/A 沸点：N/A 熔点：N/A	1171628-54-8	C₂₆H₃₅ClN₄O₃S₂
4-chloro-3-methyl-N-(2-phenylethyl)benzenesulfonamide	4-chloro-3-methyl-N-(2-phenylethyl)benzenesulfonamide	分子量：309.8 密度：N/A 沸点：N/A 熔点：N/A	1087639-82-4	C₁₅H₁₆ClNO₂S
(2R)-1-(1-benzothiophen-3-yl)propan-2-amine	(2R)-1-(1-benzothiophen-3-yl)propan-2-amine	分子量：191.29 密度：N/A 沸点：N/A 熔点：N/A	1336190-48-7	C₁₁H₁₃NS
1-(1,1-dioxidotetrahydrothiophen-3-yl)-6-(3-methoxyphenyl)-3-methyl-N-pentyl-1H-pyrazolo[3,4-b]pyridine-4-carboxamide	1-(1,1-dioxidotetrahydrothiophen-3-yl)-6-(3-methoxyphenyl)-3-methyl-N-pentyl-1H-pyrazolo[3,4-b]pyridine-4-carboxamide	分子量：470.6 密度：N/A 沸点：N/A 熔点：N/A	1021216-13-6	C₂₄H₃₀N₄O₄S
(R)-6-[1-(4-Cyano-3-methylphenyl)-5-cyclopentyl-4,5-dihydro-1H-pyrazol-3-yl]-2-methoxynicotinic acid	(R)-6-[1-(4-Cyano-3-methylphenyl)-5-cyclopentyl-4,5-dihydro-1H-pyrazol-3-yl]-2-methoxynicotinic acid	分子量：404.5 密度：N/A 沸点：N/A 熔点：N/A	1246765-54-7	C₂₃H₂₄N₄O₃
N-(4-(2-((4-methylbenzyl)amino)-2-oxoethyl)thiazol-2-yl)-5-oxopyrrolidine-2-carboxamide	N-(4-(2-((4-methylbenzyl)amino)-2-oxoethyl)thiazol-2-yl)-5-oxopyrrolidine-2-carboxamide	分子量：372.4 密度：N/A 沸点：N/A 熔点：N/A	1105056-59-4	C₁₈H₂₀N₄O₃S
N-(4-(2-((benzo[d][1,3]dioxol-5-ylmethyl)amino)-2-oxoethyl)thiazol-2-yl)-5-oxopyrrolidine-2-carboxamide	N-(4-(2-((benzo[d][1,3]dioxol-5-ylmethyl)amino)-2-oxoethyl)thiazol-2-yl)-5-oxopyrrolidine-2-carboxamide	分子量：402.4 密度：N/A 沸点：N/A 熔点：N/A	1105682-46-9	C₁₈H₁₈N₄O₅S
5-oxo-N-(4-(2-oxo-2-((pyridin-3-ylmethyl)amino)ethyl)thiazol-2-yl)pyrrolidine-2-carboxamide	5-oxo-N-(4-(2-oxo-2-((pyridin-3-ylmethyl)amino)ethyl)thiazol-2-yl)pyrrolidine-2-carboxamide	分子量：359.4 密度：N/A 沸点：N/A 熔点：N/A	1103993-97-0	C₁₆H₁₇N₅O₃S
N-(4-(2-((2-methoxyphenethyl)amino)-2-oxoethyl)thiazol-2-yl)-5-oxopyrrolidine-2-carboxamide	N-(4-(2-((2-methoxyphenethyl)amino)-2-oxoethyl)thiazol-2-yl)-5-oxopyrrolidine-2-carboxamide	分子量：402.5 密度：N/A 沸点：N/A 熔点：N/A	1105692-16-7	C₁₉H₂₂N₄O₄S
2-(5-((4-Chlorophenoxy)methyl)furan-2-yl)-5-(2,6-dimethylmorpholino)oxazole-4-carbonitrile	2-(5-((4-Chlorophenoxy)methyl)furan-2-yl)-5-(2,6-dimethylmorpholino)oxazole-4-carbonitrile	分子量：413.9 密度：N/A 沸点：N/A 熔点：N/A	946200-88-0	C₂₁H₂₀ClN₃O₄
2-{5-[(4-Chlorophenoxy)methyl]furan-2-yl}-5-(3,5-dimethylpiperidin-1-yl)-1,3-oxazole-4-carbonitrile	2-{5-[(4-Chlorophenoxy)methyl]furan-2-yl}-5-(3,5-dimethylpiperidin-1-yl)-1,3-oxazole-4-carbonitrile	分子量：411.9 密度：N/A 沸点：N/A 熔点：N/A	946278-48-4	C₂₂H₂₂ClN₃O₃
Ethyl 1-(3-(6-(4-methoxyphenyl)imidazo[2,1-b]thiazol-3-yl)propanoyl)piperidine-3-carboxylate	Ethyl 1-(3-(6-(4-methoxyphenyl)imidazo[2,1-b]thiazol-3-yl)propanoyl)piperidine-3-carboxylate	分子量：441.5 密度：N/A 沸点：N/A 熔点：N/A	1040643-99-9	C₂₃H₂₇N₃O₄S
N-(2-(ethylthio)-4-phenylthiazol-5-yl)-2-phenoxypropanamide	N-(2-(ethylthio)-4-phenylthiazol-5-yl)-2-phenoxypropanamide	分子量：384.5 密度：N/A 沸点：N/A 熔点：N/A	1049254-67-2	C₂₀H₂₀N₂O₂S₂
N-(2-((2-(methylamino)-2-oxoethyl)thio)-4-phenylthiazol-5-yl)-2-phenoxypropanamide	N-(2-((2-(methylamino)-2-oxoethyl)thio)-4-phenylthiazol-5-yl)-2-phenoxypropanamide	分子量：427.5 密度：N/A 沸点：N/A 熔点：N/A	946327-81-7	C₂₁H₂₁N₃O₃S₂
N-(2-((2-(methylamino)-2-oxoethyl)thio)-4-phenylthiazol-5-yl)-3-phenylpropanamide	N-(2-((2-(methylamino)-2-oxoethyl)thio)-4-phenylthiazol-5-yl)-3-phenylpropanamide	分子量：411.5 密度：N/A 沸点：N/A 熔点：N/A	1049172-84-0	C₂₁H₂₁N₃O₂S₂
1-(4-((1-(4-chlorophenyl)-1H-tetrazol-5-yl)methyl)piperazin-1-yl)-2-phenoxypropan-1-one	1-(4-((1-(4-chlorophenyl)-1H-tetrazol-5-yl)methyl)piperazin-1-yl)-2-phenoxypropan-1-one	分子量：426.9 密度：N/A 沸点：N/A 熔点：N/A	1049428-66-1	C₂₁H₂₃ClN₆O₂
1-(4-((1-(3,4-difluorophenyl)-1H-tetrazol-5-yl)methyl)piperazin-1-yl)-2-phenoxypropan-1-one	1-(4-((1-(3,4-difluorophenyl)-1H-tetrazol-5-yl)methyl)piperazin-1-yl)-2-phenoxypropan-1-one	分子量：428.4 密度：N/A 沸点：N/A 熔点：N/A	1040677-12-0	C₂₁H₂₂F₂N₆O₂
N-(5,7-dimethylthiazolo[4,5-b]pyridin-2-yl)-5-oxo-1-phenylpyrrolidine-3-carboxamide	N-(5,7-dimethylthiazolo[4,5-b]pyridin-2-yl)-5-oxo-1-phenylpyrrolidine-3-carboxamide	分子量：366.4 密度：N/A 沸点：N/A 熔点：N/A	1021045-71-5	C₁₉H₁₈N₄O₂S
N-(5,7-dimethylthiazolo[4,5-b]pyridin-2-yl)-5-oxo-1-(p-tolyl)pyrrolidine-3-carboxamide	N-(5,7-dimethylthiazolo[4,5-b]pyridin-2-yl)-5-oxo-1-(p-tolyl)pyrrolidine-3-carboxamide	分子量：380.5 密度：N/A 沸点：N/A 熔点：N/A	1020968-30-2	C₂₀H₂₀N₄O₂S
N-(3-methyl-1-(4-phenylthiazol-2-yl)-1H-pyrazol-5-yl)-2-phenoxypropanamide	N-(3-methyl-1-(4-phenylthiazol-2-yl)-1H-pyrazol-5-yl)-2-phenoxypropanamide	分子量：404.5 密度：N/A 沸点：N/A 熔点：N/A	1020488-89-4	C₂₂H₂₀N₄O₂S
N-(3-methyl-1-(4-phenylthiazol-2-yl)-1H-pyrazol-5-yl)-5-oxo-1-(o-tolyl)pyrrolidine-3-carboxamide	N-(3-methyl-1-(4-phenylthiazol-2-yl)-1H-pyrazol-5-yl)-5-oxo-1-(o-tolyl)pyrrolidine-3-carboxamide	分子量：457.5 密度：N/A 沸点：N/A 熔点：N/A	1020489-28-4	C₂₅H₂₃N₅O₂S
2-Chloro-N-(4,7-dimethyl-2-benzothiazolyl)-N-[(tetrahydro-2-furanyl)methyl]benzeneacetamide	2-Chloro-N-(4,7-dimethyl-2-benzothiazolyl)-N-[(tetrahydro-2-furanyl)methyl]benzeneacetamide	分子量：414.9 密度：N/A 沸点：N/A 熔点：N/A	1170168-57-6	C₂₂H₂₃ClN₂O₂S
N-(4,7-dimethylbenzo[d]thiazol-2-yl)-4-methyl-N-((tetrahydrofuran-2-yl)methyl)-1,2,3-thiadiazole-5-carboxamide	N-(4,7-dimethylbenzo[d]thiazol-2-yl)-4-methyl-N-((tetrahydrofuran-2-yl)methyl)-1,2,3-thiadiazole-5-carboxamide	分子量：388.5 密度：N/A 沸点：N/A 熔点：N/A	1170400-07-3	C₁₈H₂₀N₄O₂S₂
N-(4,7-dimethyl-1,3-benzothiazol-2-yl)-3-methoxy-1-methyl-N-[(oxolan-2-yl)methyl]-1H-pyrazole-4-carboxamide	N-(4,7-dimethyl-1,3-benzothiazol-2-yl)-3-methoxy-1-methyl-N-[(oxolan-2-yl)methyl]-1H-pyrazole-4-carboxamide	分子量：400.5 密度：N/A 沸点：N/A 熔点：N/A	1171171-78-0	C₂₀H₂₄N₄O₃S