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
5-Chloro-6-[3-(4,4-difluoropiperidine-1-carbonyl)pyrrolidin-1-yl]pyridine-3-carbonitrile 2877681-28-0
5-Ethynyl-2,4-difluoropyridine 2803864-31-3
6-[3-(Pyrrolidine-1-carbonyl)azetidin-1-yl]pyridine-3-carbonitrile 2877641-60-4
4-[1-(5-Bromopyrimidin-2-yl)pyrrolidine-3-carbonyl]thiomorpholine 2877639-62-6
3-{3-[(1,3-Thiazol-2-yloxy)methyl]piperidin-1-yl}pyridine-4-carbonitrile 2877682-26-1
5-Bromo-2-[3-(pyrrolidine-1-carbonyl)azetidin-1-yl]pyridine-3-carbonitrile 2877639-56-8
3,3-Dimethyl-2-phenylbutan-2-aminehydrochloride 105254-04-4
4-{1-[2-Methyl-6-(trifluoromethyl)pyrimidin-4-yl]piperidine-4-carbonyl}morpholine 2877634-60-9
4-[1-(5-Tert-butyl-1,3,4-thiadiazol-2-yl)piperidine-4-carbonyl]morpholine 2877646-26-7
4-{1-[3-(Trifluoromethyl)pyridin-2-yl]piperidine-4-carbonyl}thiomorpholine 2877750-64-4
4-[1-(6-Tert-butylpyridazin-3-yl)pyrrolidine-3-carbonyl]thiomorpholine 2877629-91-7
4,5-Dimethyl-6-(4-{[(3-methylpyrazin-2-yl)oxy]methyl}piperidin-1-yl)pyrimidine 2877630-59-4
3-(1-Benzothiophen-2-yl)-3-methylbutanoic acid 2228770-57-6
4-{1-[2-Methyl-6-(trifluoromethyl)pyrimidin-4-yl]pyrrolidine-3-carbonyl}thiomorpholine 2877641-69-3
4-{[1-(5-Fluoropyrimidin-2-yl)azetidin-3-yl]oxy}pyridine-2-carbonitrile 2877639-73-9
4-[(1-{3-cyano-5H,7H,8H-pyrano[4,3-b]pyridin-2-yl}azetidin-3-yl)oxy]pyridine-2-carbonitrile 2877691-87-5
1-(2,5-Dimethylphenyl)-4-[(1,3,4-oxadiazol-2-yl)methyl]piperazine 2877705-99-0
3-(4-{[(3-Methylpyrazin-2-yl)oxy]methyl}piperidin-1-yl)pyrazine-2-carbonitrile 2877641-74-0
2-(4,5,6,7-Tetrahydro-1-benzothiophen-3-yl)ethane-1-thiol 2228636-12-0
N-[1-(5-tert-butyl-1,3,4-thiadiazol-2-yl)piperidin-4-yl]methanesulfonamide 2435434-85-6
2-(3-Methoxy-2-methylphenyl)-2-methyloxirane 2228822-03-3
4,6-Dimethyl-2-(4-{[(3-methylpyrazin-2-yl)oxy]methyl}piperidin-1-yl)pyrimidine 2877682-37-4
4-{6-[4-(6-Ethyl-5-fluoropyrimidin-4-yl)piperazin-1-yl]-2-methylpyrimidin-4-yl}morpholine 2877681-38-2
5-Chloro-4,6-dimethyl-2-[4-(morpholine-4-carbonyl)piperidin-1-yl]pyridine-3-carbonitrile 2877630-53-8
N-tert-butyl-1-{thieno[3,2-c]pyridin-4-yl}piperidine-3-carboxamide 2877706-04-0
2-[3-(4,4-Difluoropiperidine-1-carbonyl)pyrrolidin-1-yl]-3-(trifluoromethyl)pyridine 2877645-36-6
4-[1-(5-Tert-butyl-1,3,4-thiadiazol-2-yl)pyrrolidine-3-carbonyl]thiomorpholine 2877706-10-8
(2R)-1-(2,2-dimethylthiolan-3-yl)propan-2-amine 2228000-84-6
2-{[1-(5-Cyclopropyl-1,3,4-thiadiazol-2-yl)piperidin-4-yl]methoxy}-3-methylpyrazine 2877641-28-4
2-(4-{[(3-Methylpyrazin-2-yl)oxy]methyl}piperidin-1-yl)-4-(trifluoromethyl)pyrimidine 2877634-79-0
4-(4-{[(3-Methylpyrazin-2-yl)oxy]methyl}piperidin-1-yl)-6-(trifluoromethyl)pyrimidine 2877634-58-5
4-(Thiomorpholine-4-carbonyl)-[1,3-bipiperidine]-2-one 2877628-82-3
4-{1-[3-(Trifluoromethyl)pyridin-2-yl]pyrrolidine-3-carbonyl}thiomorpholine 2877681-66-6
4-{1-[6-(Trifluoromethyl)pyridin-2-yl]pyrrolidine-3-carbonyl}thiomorpholine 2877634-87-0
4-{1-[2-(Trifluoromethyl)pyridin-4-yl]pyrrolidine-3-carbonyl}thiomorpholine 2877641-34-2
1-(4-Chlorophenyl)-4-[(5-methyl-1,3,4-oxadiazol-2-yl)methyl]piperazine 2877630-68-5
2-{[1-({4H,5H,6H-cyclopenta[d][1,3]thiazol-2-yl}methyl)piperidin-4-yl]methoxy}-3-methylpyrazine 2877665-84-2
N-cyclopropyl-1-[(3-methoxyphenyl)methyl]piperidine-3-carboxamide 2777366-72-8
2-Methyl-3-({1-[(5-methyl-1,2,4-oxadiazol-3-yl)methyl]piperidin-4-yl}methoxy)pyrazine 2877629-49-5
2-Methyl-3-({1-[(3-methyl-1,2,4-oxadiazol-5-yl)methyl]piperidin-4-yl}methoxy)pyrazine 2877641-37-5
N-[1-(2-phenoxyethyl)piperidin-4-yl]cyclobutanecarboxamide 2877681-74-6
Methyl 2-hydroxy-3-(2-methylfuran-3-yl)propanoate 2229499-25-4
4-{1-[(Pyridin-3-yl)methyl]piperidine-4-carbonyl}morpholine 2877750-85-9
N-{1-[2-(methylsulfanyl)pyrimidin-4-yl]piperidin-4-yl}methanesulfonamide 2877687-39-1
2-(4-cyclopropanecarbonyl-1,4-diazepan-1-yl)-N,N-dimethylpyrimidin-4-amine 2877706-11-9
1-Cyclopropanecarbonyl-4-(5-methoxypyrimidin-2-yl)-1,4-diazepane 2877630-87-8
4-[1-(6-Ethyl-5-fluoropyrimidin-4-yl)piperidine-4-carbonyl]morpholine 2877635-12-4
N,N-dimethyl-2-[4-(morpholine-4-carbonyl)piperidin-1-yl]pyrimidin-4-amine 2877634-81-4
4-{1-[2-(Methylsulfanyl)pyrimidin-4-yl]piperidine-4-carbonyl}morpholine 2877750-99-5
4-{1-[6-Methyl-2-(methylsulfanyl)pyrimidin-4-yl]piperidine-4-carbonyl}morpholine 2877630-94-7

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