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
2-[2-(Azepan-1-yl)ethyl]-6-tert-butyl-2,3-dihydropyridazin-3-one 2199604-23-2
6-Cyclopropyl-2-(2-hydroxyethyl)-2,3-dihydropyridazin-3-one 1864608-32-1
6-Cyclopropyl-2-[(2-methyl-1,3-thiazol-4-yl)methyl]-2,3-dihydropyridazin-3-one 2195883-15-7
6-Cyclopropyl-2-(2-methylprop-2-en-1-yl)-2,3-dihydropyridazin-3-one 2167342-37-0
6-Cyclopropyl-2-[(pyridin-4-yl)methyl]-2,3-dihydropyridazin-3-one 2197637-89-9
6-Cyclopropyl-2-(propan-2-yl)-2,3-dihydropyridazin-3-one 2197892-49-0
6-Cyclopropyl-2-(cyclopropylmethyl)-2,3-dihydropyridazin-3-one 2196212-10-7
6-Cyclopropyl-2-(2,2,2-trifluoroethyl)-2,3-dihydropyridazin-3-one 2201616-56-8
2-[(Azetidin-3-yl)methyl]-6-cyclopropyl-2,3-dihydropyridazin-3-one 2199902-13-9
2-[(2-methyl-1,3-thiazol-4-yl)methyl]-2H,3H,5H,6H,7H-cyclopenta[c]pyridazin-3-one 2200034-21-3
2-(but-3-en-1-yl)-2H,3H,5H,6H,7H-cyclopenta[c]pyridazin-3-one 2168965-66-8
1-methyl-4-({3-oxo-2H,3H,5H,6H,7H-cyclopenta[c]pyridazin-2-yl}methyl)pyrrolidin-2-one 2197599-39-4
2-(2-Hydroxyethyl)-2,3,5,6,7,8-hexahydrocinnolin-3-one 177207-89-5
2-[(2,4-Dimethyl-1,3-thiazol-5-yl)methyl]-2,3,5,6,7,8-hexahydrocinnolin-3-one 2196212-06-1
2-(2-Methylprop-2-en-1-yl)-2,3,5,6,7,8-hexahydrocinnolin-3-one 2169377-26-6
6-Methyl-2-[2-(piperidin-1-yl)ethyl]-2,3,5,6,7,8-hexahydrocinnolin-3-one 2197522-82-8
6-methyl-2-[2-(1H-pyrazol-1-yl)ethyl]-2,3,5,6,7,8-hexahydrocinnolin-3-one 2201692-15-9
2-[2-(pyrrolidin-1-yl)ethyl]-2H,3H,5H,7H,8H-pyrano[4,3-c]pyridazin-3-one 2189368-08-7
2-(but-2-yn-1-yl)-2H,3H,5H,7H,8H-pyrano[4,3-c]pyridazin-3-one 2168800-19-7
2-(2,2,2-trifluoroethyl)-2H,3H,5H,7H,8H-pyrano[4,3-c]pyridazin-3-one 2199384-69-3
3-(Azetidin-3-yl)-3,4-dihydropyrimidin-4-one 2200108-20-7
3-(But-2-yn-1-yl)-6-methyl-3,4-dihydropyrimidin-4-one 1878351-94-0
3-(Cyclopropylmethyl)-6-methyl-3,4-dihydropyrimidin-4-one 1864067-41-3
3-(Cyclohexylmethyl)-6-methyl-3,4-dihydropyrimidin-4-one 2199589-26-7
3-(Cyclobutylmethyl)-6-methyl-3,4-dihydropyrimidin-4-one 1856265-29-6
N-(2-fluorocyclopentyl)-1H-indole-2-carboxamide 2202251-00-9
N-(2-fluorocyclopentyl)-1-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide 2201244-18-8
N-(2-fluorocyclopentyl)-7-methoxy-1-benzofuran-2-carboxamide 2202461-67-2
N-(2-fluorocyclopentyl)-1-benzofuran-2-carboxamide 2202461-26-3
N-(2-fluorocyclopentyl)pyrazine-2-carboxamide 2199835-10-2
N-(2-fluorocyclopentyl)oxane-4-carboxamide 2167898-58-8
N-(2-fluorocyclopentyl)-2,3-dihydro-1,4-benzodioxine-5-carboxamide 2198291-36-8
N-(2-fluorocyclopentyl)morpholine-4-carboxamide 2198769-73-0
N-(2-fluorocyclopentyl)-3,5-dimethyl-1H-pyrazole-4-carboxamide 2197310-34-0
N-(2-fluorocyclopentyl)-5-methylpyrazine-2-carboxamide 2202504-59-2
N-(2-fluorocyclopentyl)quinoline-8-sulfonamide 2201019-30-7
N-(2-fluorocyclopentyl)-2,3-dihydro-1-benzofuran-5-sulfonamide 2199162-37-1
5-bromo-N-(2-fluorocyclopentyl)pyrimidin-2-amine 2199682-39-6
5-chloro-N-(2-fluorocyclopentyl)pyrimidin-2-amine 2202458-82-8
N-(2-fluorocyclopentyl)-1,3-thiazol-2-amine 2197807-27-3
N-[(3,5-dimethyl-1,2-oxazol-4-yl)methyl]-2-fluorocyclopentan-1-amine 2199317-68-3
2-fluoro-N-[(5-methyl-1,2-oxazol-3-yl)methyl]cyclopentan-1-amine 2199970-44-8
N-(2-fluorocyclopentyl)-N-methylquinoxaline-6-carboxamide 2201878-05-7
6-cyclopropyl-N-(4-fluorooxolan-3-yl)-N-methylpyrimidin-4-amine 2197820-23-6
4-fluoro-N-methyl-N-[(5-methyl-1,2-oxazol-3-yl)methyl]oxolan-3-amine 2197759-14-9
1-{[1-(oxolane-2-carbonyl)azetidin-3-yl]methyl}-1H-1,2,3-triazole 2201063-02-5
6-{3-[(1H-1,2,3-triazol-1-yl)methyl]azetidine-1-carbonyl}quinoxaline 2199162-75-7
1-{[1-(oxolane-3-carbonyl)azetidin-3-yl]methyl}-1H-1,2,3-triazole 2199573-38-9
6-{3-[(1H-1,2,3-triazol-1-yl)methyl]azetidine-1-carbonyl}-1,3-benzothiazole 2201887-89-8
3-(3-{3-[(1H-1,2,3-triazol-1-yl)methyl]azetidine-1-carbonyl}-1,2-oxazol-5-yl)pyridine 2198770-55-5

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