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
ethyl 1-[(1-oxo-2(1H)-phthalazinyl)methyl]-4-piperidinecarboxylate 725703-04-8
N-(2-(4-fluorophenoxy)ethyl)-2-oxo-2H-chromene-3-carboxamide 725703-70-8
Methyl 3-[(2-fluorobenzyl)sulfanyl]propanoate 725705-25-9
2-cyano-2-cyclopentylidene-N-[2-(trifluoromethyl)phenyl]acetamide 725705-60-2
Tert-butyl 4-[(5-bromothiophen-2-yl)sulfonyl]piperazine-1-carboxylate 725705-92-0
2-Phenoxyethyl 2-(1-(acetylcarbamothioyl)-3-oxopiperazin-2-yl)acetate 1008070-84-5
4-chloro-5-[(4-methylbenzyl)amino]-2-phenyl-3(2H)-pyridazinone 923812-87-7
n-Carbamoyl-2-((2-ethylphenyl)amino)propanamide 1097262-14-0
(4S)-5-Acetyl-1-ethyl-3,4-dihydro-3,6-dimethyl-4-phenyl-2(1H)-pyrimidinone 1013985-43-7
(Cyclopropylcarbamoyl)(phenyl)methyl 3,5-dimethylbenzoate 923840-45-3
N-(benzo[d]furan-2-ylethyl)-2-[4-(4-methyl(1,3-thiazol-2-yl))phenoxy]acetamide 920634-43-1
2-{[4-methyl-5-(trifluoromethyl)-4H-1,2,4-triazol-3-yl]sulfanyl}-1-(naphthalen-2-yl)ethan-1-one 924151-35-9
2-({5-[(2-chlorophenoxy)methyl]-4-cyclopropyl-4H-1,2,4-triazol-3-yl}sulfanyl)-1-(2,6-difluorophenyl)ethan-1-one 920622-08-8
N-({5-[2-({5-methyl-[1,2,4]triazolo[4,3-a]quinolin-1-yl}sulfanyl)acetyl]furan-2-yl}methyl)acetamide 920667-83-0
5-{2-[5-Cyclopropyl-4-benzyl-1,2,4-triazol-3-ylthio]acetyl}indolin-2-one 919882-36-3
5-(furan-2-yl)-2-[({5-[(2-methoxyethyl)amino]-1,3,4-thiadiazol-2-yl}sulfanyl)methyl]-3H,4H-thieno[2,3-d]pyrimidin-4-one 920656-47-9
2-{[4-cyclopropyl-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}-N-[(2,3-dihydro-1,4-benzodioxin-6-yl)methyl]-N-methylacetamide 920653-83-4
2-(4-chlorophenyl)-N-(1,1-dioxidotetrahydrothiophen-3-yl)-4-methyl-1,3-thiazole-5-carboxamide 924245-63-6
2-fluoro-N'-(3-fluorobenzoyl)benzohydrazide 923723-62-0
2-Furyl 4-[(4-hydroxy-5-phenylthiopheno[2,3-d]pyrimidin-2-yl)ethyl]piperazinyl ketone 920807-39-2
2-(3,5-dimethyl-1,2-oxazol-4-yl)-N-[3-(methylsulfanyl)phenyl]acetamide 880426-82-4
N-(1-cyanocyclohexyl)-2-{[6-methyl-2-(propan-2-yl)pyrimidin-4-yl]sulfanyl}acetamide 923695-33-4
N-(1-cyanocyclohexyl)-2-{thieno[3,2-d]pyrimidin-4-ylsulfanyl}propanamide 924109-16-0
2-(4-fluorophenyl)-4-methyl-N-(pyridin-4-ylmethyl)-1,3-thiazole-5-carboxamide 924192-62-1
N-(1-propyl-1H-1,3-benzodiazol-2-yl)quinoline-2-carboxamide 919896-15-4
2-[2-(Morpholin-4-yl)-1,3-thiazol-4-yl]aniline 923714-34-5
2-(4-cyanophenoxy)-N-methoxyacetamide 923233-21-0
N-cyclopropyl-3-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)propanamide 923198-94-1
2-[(4-fluorobenzyl)sulfanyl]-3-methylthieno[3,2-d]pyrimidin-4(3H)-one 923878-22-2
n-Carbamoyl-2-((4-ethylphenyl)amino)propanamide 1097262-13-9
3-(2,3-dimethoxyphenyl)-N-(2-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-6-yl)propanamide 924031-66-3
N-(6-methoxy-1,3-benzothiazol-2-yl)thiophene-3-carboxamide 925552-15-4
1-(Phenylsulfonyl)-4-(2-(2-pyridyl)ethyl)piperazine 923722-28-5
2-(2-Oxo-5-(trifluoromethyl)pyridin-1(2h)-yl)-N-(prop-2-yn-1-yl)acetamide 923208-24-6
7-Chloro-1,2-dihydro-6-methyl-1-[4-(pentyloxy)phenyl]-2-propyl[1]benzopyrano[2,3-c]pyrrole-3,9-dione 882366-17-8
Ethyl 5-(methylsulfonyl)-1H-indole-2-carboxylate 220679-12-9
2-[(4-Methoxyphenyl)amino]-3-methylbutanenitrile 1186231-27-5
N-(Benzyloxycarbonyl)-3-nitro-L-tyrosine 5106-01-4
6-Methoxy-2-(4-Methoxyphenyl)-3-Cyanobenzo[b]thiophene 215673-42-0
(Z)-2-cyano-N-(furan-2-ylmethyl)-3-pyridin-4-ylprop-2-enamide 358280-96-3
Ethyl4-hydrazinyl-alpha,alpha-dimethylbezneacetate 192643-90-6
2-[3-(2-aminoethyl)-2-(3,5-dimethyl-phenyl)-1H-indol-5-yl]-2-methylpropionic acid ethyl ester 192643-86-0
2-[3-(2-tert-Butoxycarbonylaminoethyl)-2-(3,5-dimethylphenyl)-1H-indol-5-yl]-2-methylpropionic acid ethylester 192644-13-6
Benzyl 4-oxo-2-vinylpiperidine-1-carboxylate 335266-02-9
(2R)-2-Amino-3-(2-methyl-1,3-thiazol-5-yl)propanoic acid 1841222-80-7
Tert-butyl 1-(2-hydroxyethyl)hydrazinecarboxylate 114897-60-8
2-{[(4-methoxyphenoxy)acetyl]amino}-N-(pyridin-3-ylmethyl)-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxamide 882391-66-4
10,11-Didehydrocinchonidine 157253-80-0
1'-(3-Phenoxypropyl)spiro[[1,3]dioxane-2,3'-indolin]-2'-one 882381-88-6
N1-[[3,5-Dichloro-2-[(4-methylphenyl)methoxy]phenyl]methyl]-1H-tetrazole-1,5-diamine 884990-83-4

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