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
4-Hydrazinyl-6-(phenylsulfanyl)pyrimidine	4-Hydrazinyl-6-(phenylsulfanyl)pyrimidine	分子量：218.28 密度：N/A 沸点：N/A 熔点：N/A	1112383-95-5	C₁₀H₁₀N₄S
4-(4-phenylpiperazin-1-yl)pyrimidine-2(1H)-thione	4-(4-phenylpiperazin-1-yl)pyrimidine-2(1H)-thione	分子量：272.37 密度：N/A 沸点：N/A 熔点：N/A	1112383-96-6	C₁₄H₁₆N₄S
3-(2-Fluorophenyl)-6-({[3-(2-methoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}thio)pyridazine	3-(2-Fluorophenyl)-6-({[3-(2-methoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}thio)pyridazine	分子量：394.4 密度：N/A 沸点：N/A 熔点：N/A	1111000-22-6	C₂₀H₁₅FN₄O₂S
3-(2,5-Difluorophenyl)-4-fluorobenzaldehyde	3-(2,5-Difluorophenyl)-4-fluorobenzaldehyde	分子量：236.19 密度：N/A 沸点：N/A 熔点：N/A	1184216-19-0	C₁₃H₇F₃O
4-(6-Chloropyrimidin-4-yl)thiomorpholine	4-(6-Chloropyrimidin-4-yl)thiomorpholine	分子量：215.70 密度：N/A 沸点：N/A 熔点：N/A	1112278-31-5	C₈H₁₀ClN₃S
3-(3-Chloro-4-fluorophenyl)-5-(((6-(2-fluorophenyl)pyridazin-3-yl)thio)methyl)-1,2,4-oxadiazole	3-(3-Chloro-4-fluorophenyl)-5-(((6-(2-fluorophenyl)pyridazin-3-yl)thio)methyl)-1,2,4-oxadiazole	分子量：416.8 密度：N/A 沸点：N/A 熔点：N/A	1111170-77-4	C₁₉H₁₁ClF₂N₄OS
N-(2-methoxy-5-methylphenyl)-2-((3-(4-methylbenzyl)-4-oxo-3,4-dihydropyrido[3',2':4,5]thieno[3,2-d]pyrimidin-2-yl)thio)acetamide	N-(2-methoxy-5-methylphenyl)-2-((3-(4-methylbenzyl)-4-oxo-3,4-dihydropyrido[3',2':4,5]thieno[3,2-d]pyrimidin-2-yl)thio)acetamide	分子量：516.6 密度：N/A 沸点：N/A 熔点：N/A	1223858-84-1	C₂₇H₂₄N₄O₃S₂
4-Fluoro-2',4'-dimethyl[1,1'-biphenyl]-3-carbaldehyde	4-Fluoro-2',4'-dimethyl[1,1'-biphenyl]-3-carbaldehyde	分子量：228.26 密度：N/A 沸点：N/A 熔点：N/A	927801-81-8	C₁₅H₁₃FO
N-(3,4-difluorophenyl)-2-((3-(4-ethylbenzyl)-4-oxo-3,4-dihydropyrido[3',2':4,5]thieno[3,2-d]pyrimidin-2-yl)thio)acetamide	N-(3,4-difluorophenyl)-2-((3-(4-ethylbenzyl)-4-oxo-3,4-dihydropyrido[3',2':4,5]thieno[3,2-d]pyrimidin-2-yl)thio)acetamide	分子量：522.6 密度：N/A 沸点：N/A 熔点：N/A	1223922-25-5	C₂₆H₂₀F₂N₄O₂S₂
4-Amino-3-(methylcarbamoyl)-1,2-thiazole-5-carboxylic acid	4-Amino-3-(methylcarbamoyl)-1,2-thiazole-5-carboxylic acid	分子量：201.21 密度：N/A 沸点：N/A 熔点：N/A	1112444-89-9	C₆H₇N₃O₃S
Methyl 4-amino-3-{[(3-methoxyphenyl)methyl]carbamoyl}-1,2-thiazole-5-carboxylate	Methyl 4-amino-3-{[(3-methoxyphenyl)methyl]carbamoyl}-1,2-thiazole-5-carboxylate	分子量：321.35 密度：N/A 沸点：N/A 熔点：N/A	1112383-89-7	C₁₄H₁₅N₃O₄S
4-Amino-3-(butylcarbamoyl)-1,2-thiazole-5-carboxylic acid	4-Amino-3-(butylcarbamoyl)-1,2-thiazole-5-carboxylic acid	分子量：243.29 密度：N/A 沸点：N/A 熔点：N/A	1112384-11-8	C₉H₁₃N₃O₃S
4-Amino-3-(isobutylcarbamoyl)isothiazole-5-carboxylic acid	4-Amino-3-(isobutylcarbamoyl)isothiazole-5-carboxylic acid	分子量：243.29 密度：N/A 沸点：N/A 熔点：N/A	1112444-90-2	C₉H₁₃N₃O₃S
4-Amino-3-[(cyclopropylmethyl)carbamoyl]-1,2-thiazole-5-carboxylic acid	4-Amino-3-[(cyclopropylmethyl)carbamoyl]-1,2-thiazole-5-carboxylic acid	分子量：241.27 密度：N/A 沸点：N/A 熔点：N/A	1112278-46-2	C₉H₁₁N₃O₃S
Methyl 4-amino-3-(methylcarbamoyl)-1,2-thiazole-5-carboxylate	Methyl 4-amino-3-(methylcarbamoyl)-1,2-thiazole-5-carboxylate	分子量：215.23 密度：N/A 沸点：N/A 熔点：N/A	1112444-69-5	C₇H₉N₃O₃S
1-(4-Bromo-2-nitrophenyl)-2-methylpiperazine	1-(4-Bromo-2-nitrophenyl)-2-methylpiperazine	分子量：300.15 密度：N/A 沸点：N/A 熔点：N/A	1240564-48-0	C₁₁H₁₄BrN₃O₂
2-methyl-6-(3-methylbutyl)-5-sulfanylidene-2H,4H,5H,6H,7H-pyrazolo[4,3-d]pyrimidin-7-one	2-methyl-6-(3-methylbutyl)-5-sulfanylidene-2H,4H,5H,6H,7H-pyrazolo[4,3-d]pyrimidin-7-one	分子量：252.34 密度：N/A 沸点：N/A 熔点：N/A	1112444-81-1	C₁₁H₁₆N₄OS
1-[4-(1-methyl-4-phenyl-1H-imidazol-5-yl)phenyl]-1H-1,2,4-triazole	1-[4-(1-methyl-4-phenyl-1H-imidazol-5-yl)phenyl]-1H-1,2,4-triazole	分子量：301.3 密度：N/A 沸点：N/A 熔点：N/A	1269105-88-5	C₁₈H₁₅N₅
N-(3,4-difluorophenyl)-2-((3-(4-fluorobenzyl)-4-oxo-3,4-dihydropyrido[3',2':4,5]thieno[3,2-d]pyrimidin-2-yl)thio)acetamide	N-(3,4-difluorophenyl)-2-((3-(4-fluorobenzyl)-4-oxo-3,4-dihydropyrido[3',2':4,5]thieno[3,2-d]pyrimidin-2-yl)thio)acetamide	分子量：512.5 密度：N/A 沸点：N/A 熔点：N/A	1189669-72-4	C₂₄H₁₅F₃N₄O₂S₂
2-methyl-6-(2-methylpropyl)-5-thioxo-2,4,5,6-tetrahydro-7H-pyrazolo[4,3-d]pyrimidin-7-one	2-methyl-6-(2-methylpropyl)-5-thioxo-2,4,5,6-tetrahydro-7H-pyrazolo[4,3-d]pyrimidin-7-one	分子量：238.31 密度：N/A 沸点：N/A 熔点：N/A	1112384-03-8	C₁₀H₁₄N₄OS
4-[1-(Pyrimidin-5-ylmethyl)pyrrolidin-3-YL]-2,4'-bipyridine	4-[1-(Pyrimidin-5-ylmethyl)pyrrolidin-3-YL]-2,4'-bipyridine	分子量：317.4 密度：N/A 沸点：N/A 熔点：N/A	1269105-95-4	C₁₉H₁₉N₅
5-[4-[(5-cyclopropyl-1H-pyrazol-3-yl)amino]pyrimidin-2-yl]thiophene-2-sulfonamide	5-[4-[(5-cyclopropyl-1H-pyrazol-3-yl)amino]pyrimidin-2-yl]thiophene-2-sulfonamide	分子量：362.4 密度：N/A 沸点：N/A 熔点：N/A	1266477-18-2	C₁₄H₁₄N₆O₂S₂
2-Phenoxyethyl caproate	2-Phenoxyethyl caproate	分子量：236.31 密度：N/A 沸点：N/A 熔点：N/A	23511-71-9	C₁₄H₂₀O₃
5-(5-chloro-4-(3-cyclopropyl-1H-pyrazol-5-ylamino)pyrimidin-2-yl)thiophene-2-carboxylic acid	5-(5-chloro-4-(3-cyclopropyl-1H-pyrazol-5-ylamino)pyrimidin-2-yl)thiophene-2-carboxylic acid	分子量：361.8 密度：N/A 沸点：N/A 熔点：N/A	1266478-21-0	C₁₅H₁₂ClN₅O₂S
1-[5-[5-chloro-4-[(5-cyclopropyl-1H-pyrazol-3-yl)amino]-pyrimidin-2-yl]-2-thienyl]ethanone	1-[5-[5-chloro-4-[(5-cyclopropyl-1H-pyrazol-3-yl)amino]-pyrimidin-2-yl]-2-thienyl]ethanone	分子量：359.8 密度：N/A 沸点：N/A 熔点：N/A	1266477-81-9	C₁₆H₁₄ClN₅OS
(3S,4S)-1-Isopropyl-4-methoxypyrrolidin-3-amine	(3S,4S)-1-Isopropyl-4-methoxypyrrolidin-3-amine	分子量：158.24 密度：N/A 沸点：N/A 熔点：N/A	1269602-05-2	C₈H₁₈N₂O
5-Thiazolecarboxylic acid, 4-ethyl-2-[methyl(2,2,2-trifluoroethyl)amino]-	5-Thiazolecarboxylic acid, 4-ethyl-2-[methyl(2,2,2-trifluoroethyl)amino]-	分子量：268.26 密度：N/A 沸点：N/A 熔点：N/A	1275832-50-2	C₉H₁₁F₃N₂O₂S
3-[(1,1-Dioxidotetrahydrothiophen-3-yl)amino]-1-(4-methylphenyl)pyrrolidine-2,5-dione	3-[(1,1-Dioxidotetrahydrothiophen-3-yl)amino]-1-(4-methylphenyl)pyrrolidine-2,5-dione	分子量：322.4 密度：N/A 沸点：N/A 熔点：N/A	1219357-90-0	C₁₅H₁₈N₂O₄S
Ethyl 1,4-dimethyl-1H-imidazole-2-carboxylate	Ethyl 1,4-dimethyl-1H-imidazole-2-carboxylate	分子量：168.19 密度：N/A 沸点：N/A 熔点：N/A	898834-09-8	C₈H₁₂N₂O₂
4-Methyl-6-(propylsulfonyl)quinolin-2(1H)-one	4-Methyl-6-(propylsulfonyl)quinolin-2(1H)-one	分子量：265.33 密度：N/A 沸点：N/A 熔点：N/A	1207858-39-6	C₁₃H₁₅NO₃S
{[6-Methyl-2-(piperidin-1-yl)pyrimidin-4-yl]methyl}(2-methylpropyl)amine	{[6-Methyl-2-(piperidin-1-yl)pyrimidin-4-yl]methyl}(2-methylpropyl)amine	分子量：262.39 密度：N/A 沸点：N/A 熔点：N/A	1272301-38-8	C₁₅H₂₆N₄
4-{6-[4-(2,3-Dihydro-1,4-benzodioxine-6-sulfonyl)piperazin-1-YL]-2-methylpyrimidin-4-YL}morpholine	4-{6-[4-(2,3-Dihydro-1,4-benzodioxine-6-sulfonyl)piperazin-1-YL]-2-methylpyrimidin-4-YL}morpholine	分子量：461.5 密度：N/A 沸点：N/A 熔点：N/A	1189882-02-7	C₂₁H₂₇N₅O₅S
4-Methyl-2-(piperidin-4-yl)pyridine	4-Methyl-2-(piperidin-4-yl)pyridine	分子量：176.26 密度：N/A 沸点：N/A 熔点：N/A	1260886-47-2	C₁₁H₁₆N₂
2-(3,5-Difluorophenyl)pyrimidine-4-carboxylic acid	2-(3,5-Difluorophenyl)pyrimidine-4-carboxylic acid	分子量：236.17 密度：N/A 沸点：N/A 熔点：N/A	1274614-23-1	C₁₁H₆F₂N₂O₂
2-(4-Chlorophenyl)-6-methylpyrimidine-4-carboxylic acid	2-(4-Chlorophenyl)-6-methylpyrimidine-4-carboxylic acid	分子量：248.66 密度：N/A 沸点：N/A 熔点：N/A	1272301-61-7	C₁₂H₉ClN₂O₂
N-(2-Ethoxyphenyl)-3-(3-(1-isopropyl-6-methyl-2-oxo-1,2-dihydropyridin-3-yl)-1,2,4-oxadiazol-5-yl)propanamide	N-(2-Ethoxyphenyl)-3-(3-(1-isopropyl-6-methyl-2-oxo-1,2-dihydropyridin-3-yl)-1,2,4-oxadiazol-5-yl)propanamide	分子量：410.5 密度：N/A 沸点：N/A 熔点：N/A	1223861-99-1	C₂₂H₂₆N₄O₄
4-(1,3-Benzothiazol-2-ylsulfanyl)cyclohexan-1-amine	4-(1,3-Benzothiazol-2-ylsulfanyl)cyclohexan-1-amine	分子量：264.4 密度：N/A 沸点：N/A 熔点：N/A	1274626-51-5	C₁₃H₁₆N₂S₂
1-(4-(Chloro(phenyl)methyl)piperidin-1-yl)ethan-1-one	1-(4-(Chloro(phenyl)methyl)piperidin-1-yl)ethan-1-one	分子量：251.75 密度：N/A 沸点：N/A 熔点：N/A	1013330-19-2	C₁₄H₁₈ClNO
3-[(2,3-Dichlorophenoxy)methyl]pyrrolidine hydrochloride	3-[(2,3-Dichlorophenoxy)methyl]pyrrolidine hydrochloride	分子量：282.6 密度：N/A 沸点：N/A 熔点：N/A	1219949-17-3	C₁₁H₁₄Cl₃NO
1-(3,3-Dimethoxypropyl)pyrazole	1-(3,3-Dimethoxypropyl)pyrazole	分子量：170.21 密度：N/A 沸点：N/A 熔点：N/A	1032964-21-8	C₈H₁₄N₂O₂
Ethyl 1-(2-((3-chloro-4-methoxyphenyl)amino)-2-oxoethyl)-7-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylate	Ethyl 1-(2-((3-chloro-4-methoxyphenyl)amino)-2-oxoethyl)-7-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylate	分子量：429.9 密度：N/A 沸点：N/A 熔点：N/A	1031573-35-9	C₂₁H₂₀ClN₃O₅
N-(1-cyanocyclobutyl)-N-methyl-4-oxo-4H-chromene-2-carboxamide	N-(1-cyanocyclobutyl)-N-methyl-4-oxo-4H-chromene-2-carboxamide	分子量：282.29 密度：N/A 沸点：N/A 熔点：N/A	1252385-13-9	C₁₆H₁₄N₂O₃
4-[(4-Methylphenyl)(methylsulfonyl)amino]butanoic acid	4-[(4-Methylphenyl)(methylsulfonyl)amino]butanoic acid	分子量：271.33 密度：N/A 沸点：N/A 熔点：N/A	1266484-02-9	C₁₂H₁₇NO₄S
2-Amino-4-chloro-6-methylpyrimidine-5-carbaldehyde	2-Amino-4-chloro-6-methylpyrimidine-5-carbaldehyde	分子量：171.58 密度：N/A 沸点：N/A 熔点：N/A	1378822-81-1	C₆H₆ClN₃O
1-[(6-Bromopyridin-2-yl)methyl]pyrrolidin-2-one	1-[(6-Bromopyridin-2-yl)methyl]pyrrolidin-2-one	分子量：255.11 密度：N/A 沸点：N/A 熔点：N/A	1093879-39-0	C₁₀H₁₁BrN₂O
1-[(5-bromo-2,4-dimethylphenyl)sulfonyl]-1H-benzimidazole	1-[(5-bromo-2,4-dimethylphenyl)sulfonyl]-1H-benzimidazole	分子量：365.2 密度：N/A 沸点：N/A 熔点：N/A	1206093-68-6	C₁₅H₁₃BrN₂O₂S
Trans-4-(4-ethylcyclohexyl)-phenyl acetylene	Trans-4-(4-ethylcyclohexyl)-phenyl acetylene	分子量：212.33 密度：N/A 沸点：N/A 熔点：N/A	1369510-20-2	C₁₆H₂₀
5-(2-chlorobenzyl)-8-fluoro-3-(2-methoxybenzyl)-3H-pyrimido[5,4-b]indol-4(5H)-one	5-(2-chlorobenzyl)-8-fluoro-3-(2-methoxybenzyl)-3H-pyrimido[5,4-b]indol-4(5H)-one	分子量：447.9 密度：N/A 沸点：N/A 熔点：N/A	1185030-39-0	C₂₅H₁₉ClFN₃O₂
4-Bromo-3-methoxy-2-naphthonitrile	4-Bromo-3-methoxy-2-naphthonitrile	分子量：262.10 密度：N/A 沸点：N/A 熔点：N/A	858031-24-0	C₁₂H₈BrNO
N-Boc-N-methyl-4-methoxy-D-phenylalanine	N-Boc-N-methyl-4-methoxy-D-phenylalanine	分子量：309.36 密度：N/A 沸点：N/A 熔点：N/A	155403-94-4	C₁₆H₂₃NO₅