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 |
7-Bromo-4,6-dichloro-1-(2-isopropylphenyl)quinazolin-2(1h)-one
|
7-Bromo-4,6-dichloro-1-(2-isopropylphenyl)quinazolin-2(1h)-one
|
分子量:412.1 密度:N/A
沸点:N/A 熔点:N/A
|
2230875-47-3
|
C17H13BrCl2N2O
|
2-{6,6-Difluorospiro[3.3]heptan-2-yl}acetaldehyde
|
2-{6,6-Difluorospiro[3.3]heptan-2-yl}acetaldehyde
|
分子量:174.19 密度:N/A
沸点:N/A 熔点:N/A
|
1936138-89-4
|
C9H12F2O
|
9-Methyl-6-oxa-10-azaspiro[4.5]decane
|
9-Methyl-6-oxa-10-azaspiro[4.5]decane
|
分子量:155.24 密度:N/A
沸点:N/A 熔点:N/A
|
2172171-34-3
|
C9H17NO
|
3-(3,4-Dibromophenyl)propanenitrile
|
3-(3,4-Dibromophenyl)propanenitrile
|
分子量:288.97 密度:N/A
沸点:N/A 熔点:N/A
|
1804039-32-4
|
C9H7Br2N
|
1-(tert-Butyl) 3-methyl 2-(2-chloropyrimidin-4-yl)malonate
|
1-(tert-Butyl) 3-methyl 2-(2-chloropyrimidin-4-yl)malonate
|
分子量:286.71 密度:N/A
沸点:N/A 熔点:N/A
|
2376833-42-8
|
C12H15ClN2O4
|
1-Imino-1lambda6-thiolane-1,3-dione
|
1-Imino-1lambda6-thiolane-1,3-dione
|
分子量:133.17 密度:N/A
沸点:N/A 熔点:N/A
|
1935397-43-5
|
C4H7NO2S
|
4-Methyl-N-(2,2,2-trifluoroethyl)thiophene-2-carboxamide
|
4-Methyl-N-(2,2,2-trifluoroethyl)thiophene-2-carboxamide
|
分子量:223.22 密度:N/A
沸点:N/A 熔点:N/A
|
1856985-06-2
|
C8H8F3NOS
|
3'-Bromo-2'-fluoro-5'-hydroxyphenacyl chloride
|
3'-Bromo-2'-fluoro-5'-hydroxyphenacyl chloride
|
分子量:267.48 密度:N/A
沸点:N/A 熔点:N/A
|
1805554-28-2
|
C8H5BrClFO2
|
2-Chloro-5-iodoquinazolin-4(3H)-one
|
2-Chloro-5-iodoquinazolin-4(3H)-one
|
分子量:306.49 密度:N/A
沸点:N/A 熔点:N/A
|
1107694-74-5
|
C8H4ClIN2O
|
6,8-Difluoro-2-methylquinazolin-4(3H)-one
|
6,8-Difluoro-2-methylquinazolin-4(3H)-one
|
分子量:196.15 密度:N/A
沸点:N/A 熔点:N/A
|
1601120-89-1
|
C9H6F2N2O
|
(E)-2-(1H-benzo[d][1,2,3]triazol-1-yl)-N'-(3,5-dibromo-2-hydroxybenzylidene)acetohydrazide
|
(E)-2-(1H-benzo[d][1,2,3]triazol-1-yl)-N'-(3,5-dibromo-2-hydroxybenzylidene)acetohydrazide
|
分子量:453.09 密度:N/A
沸点:N/A 熔点:N/A
|
315210-96-9
|
C15H11Br2N5O2
|
2-Chloro-5,6-dimethylnicotinoyl chloride
|
2-Chloro-5,6-dimethylnicotinoyl chloride
|
分子量:204.05 密度:N/A
沸点:N/A 熔点:N/A
|
2208095-52-5
|
C8H7Cl2NO
|
2-[1,1'-biphenyl]-4-yl-4,5-dimethylPyridine
|
2-[1,1'-biphenyl]-4-yl-4,5-dimethylPyridine
|
分子量:259.3 密度:N/A
沸点:N/A 熔点:N/A
|
1686126-93-1
|
C19H17N
|
8-Bromo-5-(trifluoromethyl)imidazo[1,2-a]pyridine
|
8-Bromo-5-(trifluoromethyl)imidazo[1,2-a]pyridine
|
分子量:265.03 密度:N/A
沸点:N/A 熔点:N/A
|
2137028-32-9
|
C8H4BrF3N2
|
4-Cinnolinamine, 3,6-dichloro-
|
4-Cinnolinamine, 3,6-dichloro-
|
分子量:214.05 密度:N/A
沸点:N/A 熔点:N/A
|
17837-69-3
|
C8H5Cl2N3
|
4-(5-Chloro-1,3-benzothiazol-2-yl)phenol
|
4-(5-Chloro-1,3-benzothiazol-2-yl)phenol
|
分子量:261.73 密度:N/A
沸点:N/A 熔点:N/A
|
2727-25-5
|
C13H8ClNOS
|
2-amino-5-butyl-4-oxo-4,5-dihydro-1H-pyrrole-3-carbonitrile
|
2-amino-5-butyl-4-oxo-4,5-dihydro-1H-pyrrole-3-carbonitrile
|
分子量:179.22 密度:N/A
沸点:N/A 熔点:N/A
|
929974-30-1
|
C9H13N3O
|
2-Amino-4-oxo-1-azaspiro[4.5]dec-2-ene-3-carbonitrile
|
2-Amino-4-oxo-1-azaspiro[4.5]dec-2-ene-3-carbonitrile
|
分子量:191.23 密度:N/A
沸点:N/A 熔点:N/A
|
929974-38-9
|
C10H13N3O
|
(S)-4-Fluoro-5-methyl-2,3-dihydro-1H-inden-1-amine
|
(S)-4-Fluoro-5-methyl-2,3-dihydro-1H-inden-1-amine
|
分子量:165.21 密度:N/A
沸点:N/A 熔点:N/A
|
1272728-48-9
|
C10H12FN
|
2-(4-Fluoro-2-methoxyphenoxy)-propionic acid
|
2-(4-Fluoro-2-methoxyphenoxy)-propionic acid
|
分子量:214.19 密度:N/A
沸点:N/A 熔点:N/A
|
2270907-08-7
|
C10H11FO4
|
1-Benzopyran,3-dipropylamino-6-hydroxy
|
1-Benzopyran,3-dipropylamino-6-hydroxy
|
分子量:249.35 密度:N/A
沸点:N/A 熔点:N/A
|
116005-03-9
|
C15H23NO2
|
1-(4-Ethylphenoxy)silatrane
|
1-(4-Ethylphenoxy)silatrane
|
分子量:295.41 密度:N/A
沸点:N/A 熔点:N/A
|
90936-53-1
|
C14H21NO4Si
|
C4 Azlactone
|
C4 Azlactone
|
分子量:169.22 密度:N/A
沸点:N/A 熔点:N/A
|
176664-99-6
|
C9H15NO2
|
Pomalidomide-PEG1-NH2
|
Pomalidomide-PEG1-NH2
|
分子量:374.3 密度:N/A
沸点:N/A 熔点:N/A
|
2380273-66-3
|
C17H18N4O6
|
1,1,1,2,2,3,3-Heptafluorooct-4-ene
|
1,1,1,2,2,3,3-Heptafluorooct-4-ene
|
分子量:238.15 密度:N/A
沸点:N/A 熔点:N/A
|
2707-72-4
|
C8H9F7
|
3-(3,4-Difluorophenyl)-N-(1-(6-(4-(pyridin-2-YL)piperazin-1-YL)pyrazin-2-YL)ethyl)propanamide
|
3-(3,4-Difluorophenyl)-N-(1-(6-(4-(pyridin-2-YL)piperazin-1-YL)pyrazin-2-YL)ethyl)propanamide
|
分子量:452.5 密度:N/A
沸点:N/A 熔点:N/A
|
2248160-97-4
|
C24H26F2N6O
|
2H-1,2,4-Benzothiadiazine, 3-bromo-6,7-difluoro-5-methoxy-, 1,1-dioxide
|
2H-1,2,4-Benzothiadiazine, 3-bromo-6,7-difluoro-5-methoxy-, 1,1-dioxide
|
分子量:327.10 密度:N/A
沸点:N/A 熔点:N/A
|
2100840-44-4
|
C8H5BrF2N2O3S
|
Spiro[1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-diene-5,1'-cyclopropane]-9-one
|
Spiro[1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-diene-5,1'-cyclopropane]-9-one
|
分子量:202.25 密度:N/A
沸点:N/A 熔点:N/A
|
2375194-74-2
|
C12H14N2O
|
8-Chloro-3-iodo-6-(trifluoromethyl)imidazo[1,2-a]pyrazine
|
8-Chloro-3-iodo-6-(trifluoromethyl)imidazo[1,2-a]pyrazine
|
分子量:347.46 密度:N/A
沸点:N/A 熔点:N/A
|
2170373-45-0
|
C7H2ClF3IN3
|
6-Amino-2-fluoro-3-iodophenol
|
6-Amino-2-fluoro-3-iodophenol
|
分子量:253.01 密度:N/A
沸点:N/A 熔点:N/A
|
2090794-57-1
|
C6H5FINO
|
tert-butyl N-[N-[(2-methylpropan-2-yl)oxycarbonyl]-N'-[4-(2-morpholin-4-ylethyl)phenyl]carbamimidoyl]carbamate
|
tert-butyl N-[N-[(2-methylpropan-2-yl)oxycarbonyl]-N'-[4-(2-morpholin-4-ylethyl)phenyl]carbamimidoyl]carbamate
|
分子量:448.6 密度:N/A
沸点:N/A 熔点:N/A
|
1202679-63-7
|
C23H36N4O5
|
2-Bromopyridine-4-sulfonyl fluoride
|
2-Bromopyridine-4-sulfonyl fluoride
|
分子量:240.05 密度:N/A
沸点:N/A 熔点:N/A
|
2385372-16-5
|
C5H3BrFNO2S
|
2-(Trifluoromethyl)bicyclo[2.2.2]octan-2-amine
|
2-(Trifluoromethyl)bicyclo[2.2.2]octan-2-amine
|
分子量:193.21 密度:N/A
沸点:N/A 熔点:N/A
|
1855645-71-4
|
C9H14F3N
|
(2S)-2-Quinolin-3-yloxypropanoic acid
|
(2S)-2-Quinolin-3-yloxypropanoic acid
|
分子量:217.22 密度:N/A
沸点:N/A 熔点:N/A
|
1867292-03-2
|
C12H11NO3
|
8-Chloro-6-(trifluoromethyl)imidazo[1,2-a]pyrazine
|
8-Chloro-6-(trifluoromethyl)imidazo[1,2-a]pyrazine
|
分子量:221.57 密度:N/A
沸点:N/A 熔点:N/A
|
2170373-00-7
|
C7H3ClF3N3
|
5-amino-1-methyl-1H-1,2,3-triazole-4-carboximidamide hydrochloride
|
5-amino-1-methyl-1H-1,2,3-triazole-4-carboximidamide hydrochloride
|
分子量:176.61 密度:N/A
沸点:N/A 熔点:N/A
|
55432-72-9
|
C4H9ClN6
|
1H-1,2,3-triazole-4-carboximidamide hydrochloride
|
1H-1,2,3-triazole-4-carboximidamide hydrochloride
|
分子量:147.57 密度:N/A
沸点:N/A 熔点:N/A
|
1808444-75-8
|
C3H6ClN5
|
4-Amino-7-bromoimidazo[2,1-f][1,2,4]triazine-2-carboxaldehyde
|
4-Amino-7-bromoimidazo[2,1-f][1,2,4]triazine-2-carboxaldehyde
|
分子量:242.03 密度:N/A
沸点:N/A 熔点:N/A
|
2170372-97-9
|
C6H4BrN5O
|
[1-(Hydroxymethyl)-3-methylidenecyclobutyl]methanol
|
[1-(Hydroxymethyl)-3-methylidenecyclobutyl]methanol
|
分子量:128.17 密度:N/A
沸点:N/A 熔点:N/A
|
2170372-19-5
|
C7H12O2
|
3-Bromo-8-chloro-6-(trifluoromethyl)imidazo[1,2-a]pyrazine
|
3-Bromo-8-chloro-6-(trifluoromethyl)imidazo[1,2-a]pyrazine
|
分子量:300.46 密度:N/A
沸点:N/A 熔点:N/A
|
2170373-01-8
|
C7H2BrClF3N3
|
6-{4-[(4-Cyclopropylphenyl)acetyl]piperazin-1-yl}pyridazine-3-carbonitrile
|
6-{4-[(4-Cyclopropylphenyl)acetyl]piperazin-1-yl}pyridazine-3-carbonitrile
|
分子量:347.4 密度:N/A
沸点:N/A 熔点:N/A
|
2170608-85-0
|
C20H21N5O
|
4-(Perfluoropropan-2-yl)benzenesulfonamide
|
4-(Perfluoropropan-2-yl)benzenesulfonamide
|
分子量:325.21 密度:N/A
沸点:N/A 熔点:N/A
|
1959608-06-0
|
C9H6F7NO2S
|
6-Hydroxypyrazolopyridine
|
6-Hydroxypyrazolopyridine
|
分子量:135.12 密度:N/A
沸点:N/A 熔点:N/A
|
2679779-39-4
|
C6H5N3O
|
9-(4-fluorophenyl)-2-methyl-6-phenyl-5,6,7,9-tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one
|
9-(4-fluorophenyl)-2-methyl-6-phenyl-5,6,7,9-tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one
|
分子量:374.4 密度:N/A
沸点:N/A 熔点:N/A
|
879614-95-6
|
C22H19FN4O
|
2-(4-Bromo-2-chlorophenyl)-N-methylacetamide
|
2-(4-Bromo-2-chlorophenyl)-N-methylacetamide
|
分子量:262.53 密度:N/A
沸点:N/A 熔点:N/A
|
2270912-38-2
|
C9H9BrClNO
|
5-Ethyl-5-methyl-2-thiobarbituric acid
|
5-Ethyl-5-methyl-2-thiobarbituric acid
|
分子量:186.23 密度:N/A
沸点:N/A 熔点:N/A
|
39847-07-9
|
C7H10N2O2S
|
3,4,8-Trimethylnonyl acetate
|
3,4,8-Trimethylnonyl acetate
|
分子量:228.37 密度:N/A
沸点:N/A 熔点:N/A
|
18352-81-3
|
C14H28O2
|
1-Aminospiro[2.3]hexan-5-ol
|
1-Aminospiro[2.3]hexan-5-ol
|
分子量:113.16 密度:N/A
沸点:N/A 熔点:N/A
|
2090259-15-5
|
C6H11NO
|
4-Amino-2-oxabicyclo[2.1.1]hexane-1-carbonitrile
|
4-Amino-2-oxabicyclo[2.1.1]hexane-1-carbonitrile
|
分子量:124.14 密度:N/A
沸点:N/A 熔点:N/A
|
2170372-35-5
|
C6H8N2O
|
(4-Amino-2-oxabicyclo[2.2.2]octan-1-yl)methanol
|
(4-Amino-2-oxabicyclo[2.2.2]octan-1-yl)methanol
|
分子量:157.21 密度:N/A
沸点:N/A 熔点:N/A
|
2170372-44-6
|
C8H15NO2
|