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
(1R)-2,2,2-Trifluoro-1-[4-(pyrrolidin-1-YL)phenyl]ethanamine 1270115-90-6
(E)-5-Methyl-5,6-dihydrocyclopenta[B]pyrrol-4(1H)-oneoxime 1922924-41-1
(1S-cis)-Bis(1,1-dimethylethyl)-4-hydroxy-2-cyclopentenylimidodicarbonate 2135332-24-8
(5AS,9AR)-1-(Pyridin-2-YL)-4,5,5A,6,7,8,9,9A-octahydro-[1,2,4]triazolo[4,3-A][1,6]naphthyridine 2072820-61-0
(R)-1-(3-(Methylsulfonyl)phenyl)butan-1-amine hcl 1213006-73-5
(2R)-1-Benzyl-2-(methoxymethyl)pyrrolidine 1884310-07-9
(1S,2R)-1-Amino-1-(2-anthryl)propan-2-OL 1213331-53-3
Tert-butyl (2R,5R)-2-(2-(3-(((benzyloxy)carbonyl)amino)-5-fluoropyridin-4-YL)ethyl)-5-(hydroxymethyl)morpholine-4-carboxylate 1922975-43-6
(1S,2S)-1-Amino-1-(3,5-dimethoxyphenyl)propan-2-OL 1335309-54-0
((2S,6R)-6-(4-Methoxyphenyl)tetrahydro-2H-pyran-2-YL)methanamine 2135331-84-7
(3S,4S)-1-[(2-Methylpropan-2-yl)oxycarbonyl]-4-(2,2,2-trifluoroethyl)pyrrolidine-3-carboxylic acid 2089650-63-3
(E)-N-(7-Bromo-3,4-dihydronaphthalen-1(2H)-ylidene)-2-methylpropane-2-sulfinamide 1383985-90-7
(3S)-3-(2-Anthryl)morpholine 1212908-58-1
Ethyl (S)-3-((tert-butoxycarbonyl)amino)-4-(2,4,5-trifluorophenyl)butanoate 2135332-25-9
(1R,2R)-1-Amino-1-[4-(difluoromethoxy)phenyl]propan-2-OL 1213540-82-9
(S)-3,3-Dimethyl-5-(4-nitrobenzyl)pyrrolidin-2-one 2241594-67-0
(1R,2R)-1-Amino-1-[3-(trifluoromethoxy)phenyl]propan-2-OL 1213050-75-9
(5AR,9AR)-1-Methyl-4,5,5A,6,7,8,9,9A-octahydro-[1,2,4]triazolo[4,3-A][1,6]naphthyridine 2072820-89-2
(3R)-3-Amino-3-[6-(hydroxymethyl)pyridin-2-YL]propanoic acid 1270025-33-6
(3R)-3-Amino-3-(3,5-DI-tert-butylphenyl)propanoic acid 1334872-82-0
(R)-3-(4-(2-Cyclobutylacetyl)phenoxy)pyrrolidin-2-one 2135336-78-4
Tert-butyl ((2R,3R)-3-amino-1,1,1-trifluoro-3-phenylpropan-2-YL)carbamate 2135332-14-6
(1S)-1-(3,5-Dimethoxyphenyl)prop-2-EN-1-amine 1213190-70-5
(S)-3-Amino-3-(2-hydroxy-5-(trifluoromethyl)phenyl)propanoic acid 1336455-52-7
(1S)-1-(2-Anthryl)but-3-enylamine 1270270-78-4
(R)-Benzyl (1-(4-(hydroxymethyl)cyclohexyl)ethyl)carbamate 2089671-57-6
(3aR,6aS)-5-(9H-fluoren-9-ylmethoxycarbonyl)-2-[(2-methylpropan-2-yl)oxycarbonyl]-1,3,3a,4,6,6a-hexahydropyrrolo[3,4-c]pyrrole-4-carboxylic acid 2177255-03-5
Racemic-(3R,3aR,6aS)-tert-butyl 3-aminotetrahydro-2H-furo[2,3-c]pyrrole-5(3H)-carboxylate 2177263-13-5
(Z)-Dibutyl1-methyl-4-oxoimidazolidin-2-ylidenephosphoramidate 2304584-34-5
(S)-Methyl 2-amino-3-(2-fluoro-3-hydroxyphenyl)propanoate 1383690-48-9
1,4-DI-tert-butyl (2R)-2-(2-aminoacetamido)butanedioate 2287346-09-0
(1S)-1-[3-Chloro-4-(trifluoromethoxy)phenyl]prop-2-enylamine 1213215-70-3
(S)-3-(1-Aminobutyl)-4-fluorobenzoicacidhcl 1212879-30-5
(3R)-3-Amino-3-(3-methoxypyridin-2-YL)propanoic acid 1269780-20-2
(1S,2S)-1-Amino-1-[4-(difluoromethoxy)phenyl]propan-2-OL 1270279-89-4
(2R,3S,4S)-4-Hydroxy-2-(hydroxymethyl)tetrahydrothiophen-3-YL 4-methylbenzenesulfonate 2382357-09-5
(S)-1-(2,2-Difluorobenzo[D][1,3]dioxol-4-YL)-2,2-dimethylpropan-1-amine 1388727-90-9
(1S)-1-[3-Fluoro-4-(trifluoromethoxy)phenyl]prop-2-enylamine 1213317-83-9
(1R,2S)-1-Amino-1-[3-(trifluoromethoxy)phenyl]propan-2-OL 1270266-85-7
(2S)-2-(2-Anthryl)pyrrolidine 1213097-11-0
(S)-1-(3-Bromo-5-fluorophenyl)pentan-1-amine 1259668-12-6
(R)-1-(5-Bromo-2-fluorophenyl)pentan-1-amine 1213352-62-5
Avanafil impurity 24 2250241-67-7
(3R)-3-Amino-3-[4-hydroxy-3-(trifluoromethyl)phenyl]propanoic acid 1334868-14-2
(S)-3-(2-Amino-4-fluorophenyl)-2-((tert-butoxycarbonyl)amino)propanoic acid 2135344-96-4
(1R)-1-(4-Cyclopentyloxyphenyl)prop-2-enylamine 1270087-45-0
(1S)-2,2,2-Trifluoro-1-(tetrahydrofuran-2-YL)ethan-1-amine 2089682-26-6
(2R,4S)-Tert-butyl 2-(((tert-butyldimethylsilyl)oxy)methyl)-4-(hydroxymethyl)azetidine-1-carboxylate 2177267-71-7
(2S,6R)-2-(Iodomethyl)-6-phenyltetrahydro-2H-pyran 871738-93-1
(7S,8AS)-7-Methoxyoctahydropyrrolo[1,2-A]pyrazine 2165626-54-8

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