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-(1,1-Dioxo-1,2-benzothiazol-3-yl)morpholin-2-yl]-thiomorpholin-4-ylmethanone 2770600-87-6
2-Ethyl-6-(4-{2-methylpyrazolo[1,5-a]pyrazin-4-yl}piperazin-1-yl)-2,3-dihydropyridazin-3-one 2770643-32-6
2-Ethyl-6-(4-{5-methylpyrazolo[1,5-a]pyrimidin-7-yl}piperazin-1-yl)-2,3-dihydropyridazin-3-one 2770600-91-2
2-(4,4-Difluoropiperidine-1-carbonyl)-4-[(3-fluoro-4-methoxyphenyl)methyl]morpholine 2770613-33-5
7-[(3-methylphenyl)methyl]-3-(trifluoromethyl)-5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyrazine 2770601-40-4
N-{[1-(5-fluoropyrimidin-4-yl)azetidin-3-yl]methyl}-N-methylmethanesulfonamide 2770643-33-7
2-(Propan-2-yl)-6-(4-{pyrido[2,3-d]pyrimidin-4-yl}piperazin-1-yl)-2,3-dihydropyridazin-3-one 2770616-93-6
2-(Propan-2-yl)-6-(4-{pyrido[3,4-d]pyrimidin-4-yl}piperazin-1-yl)-2,3-dihydropyridazin-3-one 2770643-48-4
2-Ethyl-6-(4-{2-methylpyrido[3,4-d]pyrimidin-4-yl}piperazin-1-yl)-2,3-dihydropyridazin-3-one 2770589-31-4
6-(4-{5,6-Dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}piperazin-1-yl)-2-(propan-2-yl)-2,3-dihydropyridazin-3-one 2770643-49-5
2-(Propan-2-yl)-6-(4-{thieno[2,3-d]pyrimidin-4-yl}piperazin-1-yl)-2,3-dihydropyridazin-3-one 2770601-82-4
2-(Propan-2-yl)-6-(4-{[1,3]thiazolo[4,5-c]pyridin-2-yl}piperazin-1-yl)-2,3-dihydropyridazin-3-one 2770641-83-1
2-Ethyl-6-(4-{pyrazolo[1,5-a]pyrazin-4-yl}piperazin-1-yl)-2,3-dihydropyridazin-3-one 2770597-35-6
6-(4-{2,5-Dimethylpyrazolo[1,5-a]pyrimidin-7-yl}piperazin-1-yl)-2-(propan-2-yl)-2,3-dihydropyridazin-3-one 2770617-66-6
3-(4-{[(6-Cyclopropyl-5-fluoropyrimidin-4-yl)(methyl)amino]methyl}piperidin-1-yl)-1-(2,2,2-trifluoroethyl)pyrrolidin-2-one 2770580-36-2
5-[5-(Pyridin-2-yl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]pyridine-2-carbonitrile 2770617-88-2
2-Ethyl-6-(4-{pyrido[2,3-d]pyrimidin-4-yl}piperazin-1-yl)-2,3-dihydropyridazin-3-one 2770626-14-5
4-({1H,4H,5H,6H-cyclopenta[c]pyrazol-3-yl}methyl)-1-[(2,4-difluorophenyl)methyl]-2-methylpiperazine 2770597-70-9
N-{[1-(6-fluoro-1,3-benzoxazol-2-yl)azetidin-3-yl]methyl}-N-methylmethanesulfonamide 2770590-67-3
6-(4-{2-Methylpyrido[3,4-d]pyrimidin-4-yl}piperazin-1-yl)-2-(propan-2-yl)-2,3-dihydropyridazin-3-one 2770594-40-4
1-{2,5-Dimethylpyrazolo[1,5-a]pyrimidin-7-yl}-4-[(3-fluoropyridin-4-yl)methyl]piperazine 2770619-03-7
3-Methyl-6-(4-phenylpiperazin-1-yl)-3,4-dihydropyrimidin-4-one 2327225-62-5
2-(4,4-Difluoropiperidine-1-carbonyl)-4-[2-(2,3-dihydro-1-benzofuran-5-yl)ethyl]morpholine 2770601-88-0
2-(2-Methylpropyl)-6-(4-{pyrazolo[1,5-a]pyrazin-4-yl}piperazin-1-yl)-2,3-dihydropyridazin-3-one 2770614-15-6
6-[4-(2-Methoxyphenyl)piperazin-1-yl]pyridine-2-carbonitrile 2329078-73-9
6-[4-(3-Methoxyphenyl)piperazin-1-yl]pyridine-2-carbonitrile 2322098-68-8
4-[4-(2-Fluorophenyl)piperazin-1-yl]-2-methylpyrimidine 2322222-20-6
4-[4-(2-Fluorophenyl)piperazin-1-yl]-6-methylpyrimidine 2327353-04-6
2-(2-Methylpropyl)-6-(4-{[1,3]thiazolo[4,5-c]pyridin-2-yl}piperazin-1-yl)-2,3-dihydropyridazin-3-one 2770581-95-6
2-[3-(2-methyl-1H-1,3-benzodiazol-1-yl)azetidin-1-yl]-1-(piperidin-1-yl)ethan-1-one 2770604-59-4
5-bromo-2-(3-{[2-(propan-2-yl)-1H-imidazol-1-yl]methyl}azetidin-1-yl)-3-(trifluoromethyl)pyridine 2770620-98-7
2-[4-(6-Methylpyrimidin-4-yl)piperazin-1-yl]-4-(pyridin-4-yl)pyrimidine 2770583-57-6
2-[4-(2-Methylpyrimidin-4-yl)piperazin-1-yl]-4-(pyridin-4-yl)pyrimidine 2770596-92-2
4-(Pyridin-2-yl)-2-[4-(1,3,4-thiadiazol-2-yl)piperazin-1-yl]pyrimidine 2770597-86-7
4-(Pyridin-3-yl)-2-[4-(1,3,4-thiadiazol-2-yl)piperazin-1-yl]pyrimidine 2770640-78-1
7-(cyclohexanesulfonyl)-6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridine 2770597-91-4
3-Chloro-4-[(1-{[5-(oxan-4-yl)-1,2,4-oxadiazol-3-yl]methyl}piperidin-4-yl)methoxy]pyridine 2770598-21-3
2-{4-[(2-Methyl-1,3-thiazol-4-yl)methyl]piperazin-1-yl}-4-(pyridin-2-yl)pyrimidine 2770616-45-8
2-[4-(5-Fluoropyrimidin-4-yl)piperazin-1-yl]-4-(pyridin-3-yl)pyrimidine 2770588-71-9
2-[4-(5-Fluoropyrimidin-2-yl)piperazin-1-yl]-4-(pyridin-4-yl)pyrimidine 2770623-97-5
2-[4-(5-Fluoropyrimidin-4-yl)piperazin-1-yl]-4-(pyridin-4-yl)pyrimidine 2770619-84-4
N-(oxan-4-yl)-6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridine-7-carboxamide 2770588-73-1
4-{[1-(5-Fluoropyrimidin-2-yl)piperidin-4-yl]methoxy}-5,6-dimethyl-2-(methylsulfanyl)pyrimidine 2770620-85-2
4-{[1-(5-Fluoropyrimidin-4-yl)piperidin-4-yl]methoxy}-5,6-dimethyl-2-(methylsulfanyl)pyrimidine 2770622-46-1
5-Ethyl-2-[4-(3-methylphenyl)piperazin-1-yl]pyrimidine 2327277-34-7
1-(oxan-4-yl)-4-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridine-7-carbonyl}pyrrolidin-2-one 2770623-39-5
5-Bromo-2-(4-{[(3-chloropyridin-4-yl)oxy]methyl}piperidin-1-yl)pyridine 2770615-70-6
2-{4-[(3,5-Dimethyl-1,2-oxazol-4-yl)methyl]piperazin-1-yl}-4-(pyridin-4-yl)pyrimidine 2770623-92-0
2-{4-[2-(Propan-2-yl)pyrimidin-4-yl]piperazin-1-yl}-4-(pyridin-4-yl)pyrimidine 2770592-10-2
4-Ethyl-5-fluoro-6-{4-[4-(pyridin-4-yl)pyrimidin-2-yl]piperazin-1-yl}pyrimidine 2770592-13-5

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