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-(4-ethoxyphenyl)-N-(5-(isoxazol-5-yl)-1,3,4-oxadiazol-2-yl)acetamide 946208-27-1
2-((2-[1-(Methoxymethyl)-1h-1,2,4-triazol-5-yl]hydrazino)carbonyl)benzoic acid 2199407-49-1
N-(5-(isoxazol-5-yl)-1,3,4-oxadiazol-2-yl)-1-tosylpiperidine-4-carboxamide 952848-29-2
[(3-Formyl-2h-chromen-4-yl)thio]acetic acid 2200388-64-1
4-(N-cyclopropyl-N-methylsulfamoyl)-N-(5-(isoxazol-5-yl)-1,3,4-oxadiazol-2-yl)benzamide 946208-30-6
5-chloro-1-methyl-1H-1,2,4-triazole-3-carboxamide 2168214-27-3
N-(4-chlorobenzo[d]thiazol-2-yl)-3-methylisoxazole-5-carboxamide 946229-20-5
3-[(2,4-dichlorobenzyl)oxy]-N'-[imino(3-pyridinyl)methyl]-2-thiophenecarbohydrazide 339009-62-0
1-[(2,4-Dichlorophenyl)methyl]-1H-pyrazolo[3,4-b]pyridine-3-carboxylic acid 875577-77-8
2-{[1-(3-Methyl-1,2,4-thiadiazol-5-yl)piperidin-4-yl]methoxy}-6-(trifluoromethyl)pyridine 2197884-52-7
3-methyl-N-(4-phenylthiazol-2-yl)isoxazole-5-carboxamide 946229-32-9
2-cyano-N'-{2-methylpyrazolo[1,5-a]pyrimidine-6-carboximidoyl}acetohydrazide 400078-00-4
1-Butyl-2-(1-methylethyl)-1H-imidazole 46029-32-7
2-{4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}-N'-(2-cyanoethanimidoyl)acetohydrazide 338979-35-4
6-Bromo-7-chloro-2-methylbenzothiazole 1025903-60-9
2-[(4-cyano-5-methyl-1,2-thiazol-3-yl)sulfanyl]-N'-[2-(2,4-dichlorophenoxy)ethanimidoyl]acetohydrazide 338395-70-3
Calolongic acid 686318-85-4
Ethyl 3-(2-{4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}acetohydrazido)-3-iminopropanoate 338979-34-3
3-methyl-N-[4-(4-phenoxyphenyl)-1,3-thiazol-2-yl]-1,2-oxazole-5-carboxamide 953209-29-5
4-Methoxy-2-[4-({[6-(trifluoromethyl)pyridin-2-yl]oxy}methyl)piperidin-1-yl]pyrimidine 2201782-91-2
2-(6-oxo-3-(pyridin-4-yl)pyridazin-1(6H)-yl)-N-((2-phenylthiazol-4-yl)methyl)propanamide 2194906-77-7
2-(Benzylthio)-1-(4-(((3,5-dimethoxybenzyl)oxy)methyl)piperidin-1-yl)ethanone 2097933-05-4
1-(4-(((4-Fluorobenzyl)oxy)methyl)piperidin-1-yl)-2-(4-(isopropylthio)phenyl)ethanone 2097901-23-8
2-({1-[(1,3,4-Oxadiazol-2-yl)methyl]piperidin-4-yl}methoxy)-6-(trifluoromethyl)pyridine 2198358-74-4
2-({1-[2-(1H-1,2,3-triazol-1-yl)ethyl]piperidin-4-yl}methoxy)-6-(trifluoromethyl)pyridine 2198373-39-4
2-({1-[(2-Methyl-1,3-oxazol-4-yl)methyl]piperidin-4-yl}methoxy)-6-(trifluoromethyl)pyridine 2202506-84-9
5-Cyano-2-oxo-1,2-dihydropyridine-3-carboxylic acid 1804409-12-8
1,1-Dimethylethyl 2-[[[(phenylmethoxy)carbonyl]amino]methyl]-1-piperidinecarboxylate 1823225-89-3
Benzofuran-2-yl(3-(phenoxymethyl)azetidin-1-yl)methanone 2309343-35-7
3-Fluoro-5-phenylbenzaldehyde 1645949-36-5
Ethyl 4-methyl-2-(3-pyridinyl)-5-thiazoleacetate 802894-17-3
(4-Mercapto-3-nitrophenyl)methanol 1378359-36-4
2-Azido-5-chloro-3-methylimidazole-4-carbaldehyde 1314745-32-8
2-(Azetidin-3-yl)-5-chloropyridine 1260845-92-8
1-(ethylsulfonyl)-4-Piperidineethanol 1435489-63-6
4-Chloro-2-cyclopropyl-1-fluorobenzene 1379221-50-7
1-Chloro-4-(chloromethyl)-2-ethylbenzene 1378801-91-2
Methyl 4,5-dimethyl-2-oxo-3,6-dioxabicyclo[3.1.0]hexane-1-carboxylate 142438-60-6
Imidazo[1,2-b]pyridazine-8-carboxylic acid 1159977-66-8
6,7-Dimethyl-[1,2,4]triazolo[4,3-a]pyridine-3-carboxylic acid 1159830-81-5
2-{[1-(6-Tert-butylpyridazin-3-yl)piperidin-4-yl]methyl}-6-cyclopropyl-2,3-dihydropyridazin-3-one 2202260-30-6
2H,3H,4H-pyrano[2,3-b]pyridin-3-amine 1211517-74-6
6,8-Dimethyl-[1,2,4]triazolo[4,3-a]pyridine-3-carboxylic acid 1159833-00-7
4-Chloro-7-methylthiazolo[5,4-c]pyridine 1159829-12-5
CID 129914690 464175-13-1
6,7-Difluorochroman-4-ol 1270585-44-8
Benzonitrile, 4-(chloromethyl)-2-nitro- 1378657-50-1
[4-(Methylamino)pyrimidin-2-yl]methanol 1346808-24-9
3-(2-Chloro-4-fluorophenyl)azetidine 1260642-12-3
Methyl 5-chloro-2-ethylisonicotinate 1256791-59-9

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