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-Amino-2,3,5,6-tetrafluorophenyl)methanol	(4-Amino-2,3,5,6-tetrafluorophenyl)methanol	分子量：195.11 密度：N/A 沸点：N/A 熔点：N/A	17078-34-1	C₇H₅F₄NO
5-Methyl-N-(2-morpholino-2-oxoethyl)thiophene-2-carboxamide	5-Methyl-N-(2-morpholino-2-oxoethyl)thiophene-2-carboxamide	分子量：268.33 密度：N/A 沸点：N/A 熔点：N/A	1060927-04-9	C₁₂H₁₆N₂O₃S
3-Hydroxy-4-aminomethyl-1-phenylmethyl pyrrolidine	3-Hydroxy-4-aminomethyl-1-phenylmethyl pyrrolidine	分子量：206.28 密度：N/A 沸点：N/A 熔点：N/A	116163-38-3	C₁₂H₁₈N₂O
N-[(2Z)-3-(3-butoxyphenyl)-5,5-dioxidotetrahydrothieno[3,4-d][1,3]thiazol-2(3H)-ylidene]-2-chloroacetamide	N-[(2Z)-3-(3-butoxyphenyl)-5,5-dioxidotetrahydrothieno[3,4-d][1,3]thiazol-2(3H)-ylidene]-2-chloroacetamide	分子量：416.9 密度：N/A 沸点：N/A 熔点：N/A	929972-32-7	C₁₇H₂₁ClN₂O₄S₂
1-Acetyl-3-chloroindole	1-Acetyl-3-chloroindole	分子量：193.63 密度：N/A 沸点：N/A 熔点：N/A	94812-07-4	C₁₀H₈ClNO
N-(1,1-dioxidotetrahydro-3-thienyl)-2-(5-methyl-7-oxo-3-phenyl-7H-furo[3,2-g]chromen-6-yl)acetamide	N-(1,1-dioxidotetrahydro-3-thienyl)-2-(5-methyl-7-oxo-3-phenyl-7H-furo[3,2-g]chromen-6-yl)acetamide	分子量：451.5 密度：N/A 沸点：N/A 熔点：N/A	921041-80-7	C₂₄H₂₁NO₆S
N~1~-(1,3-benzothiazol-2-yl)-3-(3,5-dimethyl-7-oxo-7H-furo[3,2-g]chromen-6-yl)propanamide	N~1~-(1,3-benzothiazol-2-yl)-3-(3,5-dimethyl-7-oxo-7H-furo[3,2-g]chromen-6-yl)propanamide	分子量：418.5 密度：N/A 沸点：N/A 熔点：N/A	929839-44-1	C₂₃H₁₈N₂O₄S
6-(Trimethylsilyl)-6-undecanol	6-(Trimethylsilyl)-6-undecanol	分子量：244.49 密度：N/A 沸点：N/A 熔点：N/A	77075-84-4	C₁₄H₃₂OSi
2-[(1-Ethylindol-3-yl)methylene]-3-oxobenzo[3,4-b]furan-6-yl 2-bromobenzoate	2-[(1-Ethylindol-3-yl)methylene]-3-oxobenzo[3,4-b]furan-6-yl 2-bromobenzoate	分子量：488.3 密度：N/A 沸点：N/A 熔点：N/A	929511-33-1	C₂₆H₁₈BrNO₄
(3,4-Dichlorophenyl)methanesulfonyl fluoride	(3,4-Dichlorophenyl)methanesulfonyl fluoride	分子量：243.08 密度：N/A 沸点：N/A 熔点：N/A	1934735-36-0	C₇H₅Cl₂FO₂S
(4-Fluorophenyl)methanesulfonyl fluoride	(4-Fluorophenyl)methanesulfonyl fluoride	分子量：192.19 密度：N/A 沸点：N/A 熔点：N/A	1889921-78-1	C₇H₆F₂O₂S
N-methyl-4-oxopentanamide	N-methyl-4-oxopentanamide	分子量：129.16 密度：N/A 沸点：N/A 熔点：N/A	98548-88-0	C₆H₁₁NO₂
2-[4-(2-fluorophenyl)piperazin-1-yl]-N-(5-oxo-5,6,7,8-tetrahydroquinazolin-2-yl)acetamide	2-[4-(2-fluorophenyl)piperazin-1-yl]-N-(5-oxo-5,6,7,8-tetrahydroquinazolin-2-yl)acetamide	分子量：383.4 密度：N/A 沸点：N/A 熔点：N/A	919727-55-2	C₂₀H₂₂FN₅O₂
(2E)-3-(2,4,6-trimethylphenyl)prop-2-en-1-ol	(2E)-3-(2,4,6-trimethylphenyl)prop-2-en-1-ol	分子量：176.25 密度：N/A 沸点：N/A 熔点：N/A	287929-73-1	C₁₂H₁₆O
5-(4-bromophenyl)-N-[5-methoxy-2-(4-morpholinyl)phenyl]-2-furamide	5-(4-bromophenyl)-N-[5-methoxy-2-(4-morpholinyl)phenyl]-2-furamide	分子量：457.3 密度：N/A 沸点：N/A 熔点：N/A	897100-64-0	C₂₂H₂₁BrN₂O₄
(2Z)-2-(4-ethylbenzylidene)-3-oxo-2,3-dihydro-1-benzofuran-6-yl 4-methoxybenzenesulfonate	(2Z)-2-(4-ethylbenzylidene)-3-oxo-2,3-dihydro-1-benzofuran-6-yl 4-methoxybenzenesulfonate	分子量：436.5 密度：N/A 沸点：N/A 熔点：N/A	929472-27-5	C₂₄H₂₀O₆S
2-phenyl-5-{[(1-phenyl-1H-tetrazol-5-yl)sulfanyl]methyl}[1,2,4]triazolo[1,5-a]pyrimidin-7(4H)-one	2-phenyl-5-{[(1-phenyl-1H-tetrazol-5-yl)sulfanyl]methyl}[1,2,4]triazolo[1,5-a]pyrimidin-7(4H)-one	分子量：402.4 密度：N/A 沸点：N/A 熔点：N/A	921153-33-5	C₁₉H₁₄N₈OS
N-(2-{[3-(morpholin-4-yl)propyl]carbamoyl}phenyl)biphenyl-4-carboxamide	N-(2-{[3-(morpholin-4-yl)propyl]carbamoyl}phenyl)biphenyl-4-carboxamide	分子量：443.5 密度：N/A 沸点：N/A 熔点：N/A	929819-55-6	C₂₇H₂₉N₃O₃
methyl 4-[(Z)-{7-[(dibutylamino)methyl]-6-hydroxy-3-oxo-1-benzofuran-2(3H)-ylidene}methyl]benzoate	methyl 4-[(Z)-{7-[(dibutylamino)methyl]-6-hydroxy-3-oxo-1-benzofuran-2(3H)-ylidene}methyl]benzoate	分子量：437.5 密度：N/A 沸点：N/A 熔点：N/A	929457-07-8	C₂₆H₃₁NO₅
3-Acetamido-4,6-dichloro-2-nitrobenzoic acid	3-Acetamido-4,6-dichloro-2-nitrobenzoic acid	分子量：293.06 密度：N/A 沸点：N/A 熔点：N/A	679797-63-8	C₉H₆Cl₂N₂O₅
5-chloro-2-[(4-chlorobenzyl)sulfanyl]-N-(2,6-dimethylphenyl)pyrimidine-4-carboxamide	5-chloro-2-[(4-chlorobenzyl)sulfanyl]-N-(2,6-dimethylphenyl)pyrimidine-4-carboxamide	分子量：418.3 密度：N/A 沸点：N/A 熔点：N/A	901660-08-0	C₂₀H₁₇Cl₂N₃OS
4-{1-[2-(4-Chlorophenyl)ethenesulfonyl]piperidine-3-carbonyl}morpholine	4-{1-[2-(4-Chlorophenyl)ethenesulfonyl]piperidine-3-carbonyl}morpholine	分子量：398.9 密度：N/A 沸点：N/A 熔点：N/A	949374-62-3	C₁₈H₂₃ClN₂O₄S
3-(2,6-dichlorobenzyl)-8-(2-hydroxyethyl)-1,7-dimethyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione	3-(2,6-dichlorobenzyl)-8-(2-hydroxyethyl)-1,7-dimethyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione	分子量：422.3 密度：N/A 沸点：N/A 熔点：N/A	919041-26-2	C₁₈H₁₇Cl₂N₅O₃
6-Bromo-2-methyl-7-nitro-1H-benzo[d]imidazole	6-Bromo-2-methyl-7-nitro-1H-benzo[d]imidazole	分子量：256.06 密度：N/A 沸点：N/A 熔点：N/A	147021-79-2	C₈H₆BrN₃O₂
Methyl 4-amino-5,7-dichloroquinoline-2-carboxylate	Methyl 4-amino-5,7-dichloroquinoline-2-carboxylate	分子量：271.10 密度：N/A 沸点：N/A 熔点：N/A	157848-06-1	C₁₁H₈Cl₂N₂O₂
1-[2-(1H-benzimidazol-2-yl)pyrrolidin-1-yl]-3-phenylpropan-1-one	1-[2-(1H-benzimidazol-2-yl)pyrrolidin-1-yl]-3-phenylpropan-1-one	分子量：319.4 密度：N/A 沸点：N/A 熔点：N/A	919729-08-1	C₂₀H₂₁N₃O
2-[4-(cyclopropylcarbonyl)-2-oxo-3,4-dihydro-2H-1,4-benzoxazin-3-yl]-N-phenylacetamide	2-[4-(cyclopropylcarbonyl)-2-oxo-3,4-dihydro-2H-1,4-benzoxazin-3-yl]-N-phenylacetamide	分子量：350.4 密度：N/A 沸点：N/A 熔点：N/A	1047976-62-4	C₂₀H₁₈N₂O₄
2-benzyl-8,9-dimethyl-7-(6-methyl-2-pyridinyl)-7H-pyrrolo[3,2-e][1,2,4]triazolo[1,5-c]pyrimidine	2-benzyl-8,9-dimethyl-7-(6-methyl-2-pyridinyl)-7H-pyrrolo[3,2-e][1,2,4]triazolo[1,5-c]pyrimidine	分子量：368.4 密度：N/A 沸点：N/A 熔点：N/A	929844-88-2	C₂₂H₂₀N₆
2-(methylsulfanyl)-5-(propan-2-yl)[1,2,4]triazolo[1,5-a]pyrimidin-7(4H)-one	2-(methylsulfanyl)-5-(propan-2-yl)[1,2,4]triazolo[1,5-a]pyrimidin-7(4H)-one	分子量：224.29 密度：N/A 沸点：N/A 熔点：N/A	908498-44-2	C₉H₁₂N₄OS
N-[2-(5-fluoro-1H-indol-3-yl)ethyl]pyridine-2-carboxamide	N-[2-(5-fluoro-1H-indol-3-yl)ethyl]pyridine-2-carboxamide	分子量：283.30 密度：N/A 沸点：N/A 熔点：N/A	951933-06-5	C₁₆H₁₄FN₃O
(2E)-3-(2,4-dichlorophenyl)-N-[5-(ethylsulfonyl)-1,3,4-thiadiazol-2-yl]prop-2-enamide	(2E)-3-(2,4-dichlorophenyl)-N-[5-(ethylsulfonyl)-1,3,4-thiadiazol-2-yl]prop-2-enamide	分子量：392.3 密度：N/A 沸点：N/A 熔点：N/A	905793-00-2	C₁₃H₁₁Cl₂N₃O₃S₂
Ethyl 4-[(2-nitrophenyl)amino]butanoate	Ethyl 4-[(2-nitrophenyl)amino]butanoate	分子量：252.27 密度：N/A 沸点：N/A 熔点：N/A	111113-53-2	C₁₂H₁₆N₂O₄
4-Benzyloxy-3-trifluoromethylbenzoic acid methyl ester	4-Benzyloxy-3-trifluoromethylbenzoic acid methyl ester	分子量：310.27 密度：N/A 沸点：N/A 熔点：N/A	115933-49-8	C₁₆H₁₃F₃O₃
2-chloro-1,6-dimethyl-1H-Imidazo[4,5-b]pyridine	2-chloro-1,6-dimethyl-1H-Imidazo[4,5-b]pyridine	分子量：181.62 密度：N/A 沸点：N/A 熔点：N/A	155790-07-1	C₈H₈ClN₃
3,3'-(Perfluorocyclopent-1-ene-1,2-diyl)bis(2-methylbenzofuran)	3,3'-(Perfluorocyclopent-1-ene-1,2-diyl)bis(2-methylbenzofuran)	分子量：436.3 密度：N/A 沸点：N/A 熔点：N/A	872400-04-9	C₂₃H₁₄F₆O₂
N-(2,6-dichlorophenyl)-3-iodobenzamide	N-(2,6-dichlorophenyl)-3-iodobenzamide	分子量：392.02 密度：N/A 沸点：N/A 熔点：N/A	351155-65-2	C₁₃H₈Cl₂INO
(Z)-2-((6-chloro-4H-benzo[d][1,3]dioxin-8-yl)methylene)-6-((2-methylallyl)oxy)benzofuran-3(2H)-one	(Z)-2-((6-chloro-4H-benzo[d][1,3]dioxin-8-yl)methylene)-6-((2-methylallyl)oxy)benzofuran-3(2H)-one	分子量：384.8 密度：N/A 沸点：N/A 熔点：N/A	929457-86-3	C₂₁H₁₇ClO₅
2-(2-chlorophenoxy)-N-(5-methyl-4,5,6,7-tetrahydro-2,1-benzoxazol-3-yl)acetamide	2-(2-chlorophenoxy)-N-(5-methyl-4,5,6,7-tetrahydro-2,1-benzoxazol-3-yl)acetamide	分子量：320.77 密度：N/A 沸点：N/A 熔点：N/A	898494-67-2	C₁₆H₁₇ClN₂O₃
Riccardin F	Riccardin F	分子量：438.5 密度：N/A 沸点：N/A 熔点：N/A	98093-93-7	C₂₉H₂₆O₄
N-[3-(1H-benzimidazol-2-yl)-1-(2-furylmethyl)-4,5-dimethyl-1H-pyrrol-2-yl]-2-furamide	N-[3-(1H-benzimidazol-2-yl)-1-(2-furylmethyl)-4,5-dimethyl-1H-pyrrol-2-yl]-2-furamide	分子量：400.4 密度：N/A 沸点：N/A 熔点：N/A	903869-30-7	C₂₃H₂₀N₄O₃
2-((3-cyano-6-(3,4-dimethoxyphenyl)-4-(trifluoromethyl)pyridin-2-yl)thio)-N-methylacetamide	2-((3-cyano-6-(3,4-dimethoxyphenyl)-4-(trifluoromethyl)pyridin-2-yl)thio)-N-methylacetamide	分子量：411.4 密度：N/A 沸点：N/A 熔点：N/A	905787-05-5	C₁₈H₁₆F₃N₃O₃S
4-benzyl-1-(4-chlorophenyl)-3-methyl-1H-pyrazol-5-ol	4-benzyl-1-(4-chlorophenyl)-3-methyl-1H-pyrazol-5-ol	分子量：298.8 密度：N/A 沸点：N/A 熔点：N/A	925139-71-5	C₁₇H₁₅ClN₂O
5-ethoxy-4-oxo-2-phenyl-4H-chromen-7-yl dimethylcarbamate	5-ethoxy-4-oxo-2-phenyl-4H-chromen-7-yl dimethylcarbamate	分子量：353.4 密度：N/A 沸点：N/A 熔点：N/A	919741-91-6	C₂₀H₁₉NO₅
Methyl 2-(2-(3-oxo-1,2,3,4-tetrahydroquinoxalin-2-yl)acetamido)thiophene-3-carboxylate	Methyl 2-(2-(3-oxo-1,2,3,4-tetrahydroquinoxalin-2-yl)acetamido)thiophene-3-carboxylate	分子量：345.4 密度：N/A 沸点：N/A 熔点：N/A	939894-51-6	C₁₆H₁₅N₃O₄S
Gold;palladium;platinum	Gold;palladium;platinum	分子量：498.47 密度：N/A 沸点：N/A 熔点：N/A	75602-53-8	AuPdPt
3-Butyryl-4-chloro-8-(4-methoxybenzoyloxymethyl)quinoline	3-Butyryl-4-chloro-8-(4-methoxybenzoyloxymethyl)quinoline	分子量：397.8 密度：N/A 沸点：N/A 熔点：N/A	125500-44-9	C₂₂H₂₀ClNO₄
2-({[1-(3,4-dichlorophenyl)-1H-tetrazol-5-yl]methyl}sulfanyl)-1H-benzimidazole	2-({[1-(3,4-dichlorophenyl)-1H-tetrazol-5-yl]methyl}sulfanyl)-1H-benzimidazole	分子量：377.3 密度：N/A 沸点：N/A 熔点：N/A	912904-77-9	C₁₅H₁₀Cl₂N₆S
N-(benzo[d]thiazol-6-yl)-4-fluorobenzamide	N-(benzo[d]thiazol-6-yl)-4-fluorobenzamide	分子量：272.30 密度：N/A 沸点：N/A 熔点：N/A	922879-02-5	C₁₄H₉FN₂OS
(2R,3R,4S,5S)-2-Methoxy-5-(methoxycarbonyl)tetrahydrofuran-3,4-diyl Dibenzoate	(2R,3R,4S,5S)-2-Methoxy-5-(methoxycarbonyl)tetrahydrofuran-3,4-diyl Dibenzoate	分子量：400.4 密度：N/A 沸点：N/A 熔点：N/A	163152-38-3	C₂₁H₂₀O₈
(4-Methoxyphenyl)methanesulfonyl fluoride	(4-Methoxyphenyl)methanesulfonyl fluoride	分子量：204.22 密度：N/A 沸点：N/A 熔点：N/A	1892495-27-0	C₈H₉FO₃S