CAS Number Index

A CAS Registry Number,also referred to as CASRN or CAS Number, is a unique numerical identifier assigned by the Chemical Abstracts Service (CAS) to every chemical substance described in the open scientific literature (currently including all substances described from 1957 through the present, plus some substances from the early or mid 1900s), including organic and inorganiccompounds, minerals, isotopes, alloys and nonstructurable materials (UVCBs, of unknown, variable composition, or biological origin).The registry maintained by CAS is an authoritative collection of disclosed chemical substance information. It currently identifies more than 144 million unique organic and inorganic substances and 67 million protein and DNA sequences,plus additional information about each substance. It is updated with around 15,000 additional new substances daily.（information coming from wikipedia.org)

Name CAS Number
4-(1-Cyclopentyl-1H-pyrazol-5-yl)piperidine 1707359-97-4
tert-Butyl 3-bromo-2-propionyl-1H-indole-1-carboxylate 1707391-49-8
4-(Ethylsulfonyl)-3-(m-tolyl)-1H-pyrazole 1707391-65-8
cis-3-tert-Butoxycarbonylamino-piperidine-4-carboxylic acid ethyl ester 2472560-85-1
4-(3-Fluoropyridin-4-yl)morpholine 1870157-06-4
2-[(2-Methylpiperidin-1-yl)methyl]pyridine 2326080-80-0
6-Bromo-2-chloro-N-methylpyridine-3-sulfonamide 1707609-38-8
6-Bromo-2-chloropyridine-3-sulfonamide 1707371-82-1
(3Ar,6aS)-2,2-dimethyl-3a,4,6,6a-tetrahydrocyclopenta[d][1,3]dioxol-5-one 210297-68-0
N-((1-Methyl-1,2,3,4-tetrahydroquinolin-7-yl)methyl)cyclopropanamine 1710661-20-3
N,3,3-Trimethylbutane-1-sulfonamide 1695013-28-5
2-[4-(Difluoromethoxy)-3-isopropoxyphenyl]oxazole-4-methanol 1574285-36-1
3-(1-Aminopropyl)-5-(trifluoromethyl)aniline 1337450-86-8
4-(2,4-Dichlorophenyl)-2-methylthiazole-5-carboxylic acid 1188155-24-9
Ethyl 1-methyl-4,5,6,7-tetrahydro-1H-pyrrolo[3,2-c]pyridine-2-carboxylate 1708168-11-9
5-Bromo-3-(cyclopropylmethoxy)-2-methoxypyridine 1707609-41-3
(1R,4S)-5-tert-Butoxycarbonyl-2-oxa-5-azabicyclo[2.2.1]heptane-1-carboxylic acid 1932416-77-7
1-Piperidinecarboxylic acid, 3-cyano-3-hydroxy-, 1,1-dimethylethyl ester, (3R)- 2200580-23-8
(1R,4S,5S)-5-Fluoro-2-azabicyclo[2.2.1]heptane 2382619-37-4
rac-tert-butyl (1R,5S)-3-oxa-7,9-diazabicyclo[3.3.2]decane-9-carboxylate 2382566-10-9
(2S,3R)-2,3-bis({[(tert-butoxy)carbonyl]amino})butanoic acid 1422970-34-0
(2R)-2-(tert-Butoxycarbonylamino)-4,4-difluorobutanoic acid 944328-82-9
(R)-1-(((9H-Fluoren-9-yl)methoxy)carbonyl)-3,3-dimethylpyrrolidine-2-carboxylic acid 2381009-82-9
4-(2-Chloropyridin-3-yl)oxane-4-carboxylic acid 2229436-48-8
Tert-butyl 2-(piperidine-1-carbonyl)morpholine-4-carboxylate 2415553-21-6
1-(3-(Difluoromethoxy)-5-methylphenyl)propan-1-one 1454765-41-3
[2,3'-Bipyridine]-4-carboxamide 2089319-07-1
1,3-Dihydroxy-5,6-dimethoxy-2-(methoxymethyl)-9,10-anthracenedione 1073237-09-8
2-(2-Bromo-5-fluorophenyl)-2,2-difluoroethan-1-ol 1823800-80-1
2-Bromo-6-(4-methoxyphenyl)-4-(trifluoromethyl)pyrimidine 1820717-57-4
2-Iodo-6-(o-tolyl)-4-(trifluoromethyl)pyrimidine 1820607-14-4
Methyl [6-methyl-4-(trifluoromethyl)pyrimidin-2-yl]carboxylate 1820717-18-7
5-(Bromomethyl)-2-(trifluoromethyl)-4-pyrimidinamine 657-66-9
Methyl 5-(difluoromethyl)pyrazine-2-carboxylate 2112654-87-0
2-Bromo-4-(pyrazin-2-yl)-6-(trifluoromethyl)pyrimidine 1845713-76-9
2-Iodo-6-(4-methoxyphenyl)-4-(trifluoromethyl)pyrimidine 1820647-92-4
2-Bromo-6-(2-methoxyphenyl)-4-(trifluoromethyl)pyrimidine 1820710-96-0
6-(3,5-Dichlorophenyl)-2-hydrazino-4-(trifluoromethyl)pyrimidine 1820704-60-6
N-[6-(2-Chlorophenyl)-4-(trifluoromethyl)pyrimidin-2-yl]-N-methylglycine 1820603-75-5
Methyl 5-(3-methoxyphenyl)-2,3-dimethyl-3H-imidazo-[4,5-b]-pyridine-7-carboxylate 1820649-91-9
2-Bromo-6-(2,4-dichlorophenyl)-4-(trifluoromethyl)pyrimidine 1820707-73-0
N-[6-(4-Chlorophenyl)-4-(trifluoromethyl)pyrimidin-2-yl]glycine 1820711-53-2
[6-(o-Tolyl)-4-(trifluoromethyl)pyrimidin-2-yl]carboxylic acid 1820673-43-5
N-[6-Cyclopropyl-4-(trifluoromethyl)pyrimidin-2-yl]-N-methylglycine 1820604-91-8
6-(4-Bromophenyl)-2-phenyl-4-(trifluoromethyl)pyrimidine 1820647-46-8
6-(Difluoromethyl)-4-oxo-4H-pyran-2-carboxamide 1379270-08-2
2-(5-Bromopyridin-2-yl)-2,2-difluoroethan-1-amine 1256818-57-1
3-Amino-5-(trifluoromethyl)thiophene-2-carboxylicacid 1823951-32-1
5,7,8-Trihydro-2-iodo-4-(trifluoromethyl)thiopyrano-[4,3-d]-pyrimidine 1824071-44-4
2-Iodo-6-(2-methoxyphenyl)-4-(trifluoromethyl)pyrimidine 1820608-02-3

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