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-(Methylsulfanyl)-4-(2,2,2-trifluoroacetamido)pyrimidin-5-yl]acetic acid 2680798-52-9
2-[8-(2,2,2-Trifluoroacetyl)-1-oxa-8-azaspiro[4.5]decan-2-yl]acetic acid 2680742-12-3
1-cyclopropyl-3,5-dimethyl-1H-pyrazole-4-sulfonyl chloride 2166660-83-7
1-(Cyclohex-3-en-1-yl)-2,2,2-trifluoroethan-1-one 2229231-84-7
2-{[(3-Bromopropyl)sulfanyl]methyl}-5-chlorofuran 2172120-62-4
3,8,12-Trioxa-16-azadispiro[5.2.6^{9}.2^{6}]heptadecane 2172013-73-7
(4S)-3-acetyl-2-(1,3-dioxaindan-5-yl)-1,3-thiazolidine-4-carboxylic acid 2680520-65-2
5-(Pentan-2-yl)-1,2-oxazole-4-carboxylic acid 2229394-87-8
4-(3,3-Dimethylcyclopentyl)butan-2-one 2228497-77-4
rac-(3R,5R)-5-phenyl-1-(2,2,2-trifluoroacetyl)piperidine-3-carboxylic acid 2679943-74-7
3-(4-Methylphenyl)-1-(2,2,2-trifluoroacetyl)pyrrolidine-2-carboxylic acid 2680549-45-3
benzyl N-methyl-N-(4-methyl-3-nitropyridin-2-yl)carbamate 2680890-39-3
benzyl N-[2-hydroxy-1-(2-methoxyphenyl)ethyl]carbamate 2680864-81-5
benzyl N-[2-bromo-2-(oxan-4-ylidene)ethyl]carbamate 2680889-02-3
benzyl N-[(1R)-1-(5-bromothiophen-3-yl)ethyl]carbamate 2679802-21-0
4-(2-Methylphenyl)bicyclo[2.1.1]hexan-2-one 2167744-18-3
benzyl N-[(2-bromothiophen-3-yl)methyl]-N-methylcarbamate 2680744-32-3
1-[1-propyl-3-(trifluoromethyl)-1H-pyrazol-5-yl]ethan-1-one 2105188-08-5
4-[2-(2,2,2-trifluoroacetamido)-1,3-thiazol-4-yl]-1H-pyrrole-2-carboxylic acid 2680667-57-4
Methyl 3-(3-hydroxyazetidin-3-yl)oxolane-3-carboxylate 2172495-53-1
1-(1-Amino-3,3-dimethylcyclobutyl)cyclohexan-1-ol 2171977-18-5
5-bromo-6-(difluoromethoxy)-2-Pyridinecarboxaldehyde 2901871-37-0
O-[2-(1H-indol-7-yl)propyl]hydroxylamine 2228432-84-4
4-(5-Methylpyrazin-2-yl)butan-2-ol 2001599-61-5
2-[(Azetidin-3-yl)(methyl)amino]pyrimidin-4-yl trifluoromethanesulfonate 2680798-99-4
2-(4-Ethynyl-2-methoxyphenoxy)acetic acid 29171-46-8
4-[(3-Methylazetidin-3-yl)oxy]-1,2,3-thiadiazole 2228636-92-6
Methyl 2-(chlorosulfonyl)-4-methoxy-5-nitrobenzoate 2903923-07-7
tert-butyl N-(4-bromophenyl)-N-[(pyridin-3-yl)methyl]carbamate 2680810-92-6
N-ethyl-1-(4-methylphenyl)-1H-pyrazole-5-sulfonamide 2172606-26-5
(2S)-2-{[(tert-butoxy)carbonyl]amino}-3-{4-[(fluorosulfonyl)oxy]phenyl}propanoic acid 2227199-80-4
3-(3-phenyl-1H-pyrazol-4-yl)propanal 2229410-46-0
1-phenyl-N-(propan-2-yl)-1H-pyrazole-5-sulfonamide 2172495-32-6
benzyl N-[5-(2-chloro-5-nitrophenyl)-1,3,4-thiadiazol-2-yl]carbamate 2680888-67-7
(3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-hydroxy-4-phenylbutanoic acid 2680520-64-1
3-(3-tert-butyl-1-methyl-1H-pyrazol-4-yl)morpholine 2228364-70-1
benzyl N-[2-(4-bromo-2,6-dichlorophenoxy)ethyl]carbamate 2680889-92-1
benzyl N-[3-(4-iodophenyl)-1,2-oxazol-5-yl]carbamate 2680798-34-7
4-Benzyl 5-methyl 8-bromo-2,3,4,5-tetrahydro-1,4-benzoxazepine-4,5-dicarboxylate 2680599-67-9
benzyl N-(5-bromopyridin-2-yl)-N-[3-(1H-imidazol-1-yl)propyl]carbamate 2680827-26-1
benzyl N-[3-bromo-4-(3-fluorophenoxy)phenyl]carbamate 2680742-76-9
tert-butyl N-[2-(3-bromophenoxy)ethyl]-N-[(thiolan-2-yl)methyl]carbamate 2680674-31-9
tert-butyl N-(5-bromo-2-{[(tert-butyldimethylsilyl)oxy]methyl}phenyl)carbamate 2680747-95-7
Tert-butyl 6-acetyl-8-(hydroxymethyl)-2,6-diazaspiro[3.4]octane-2-carboxylate 2680742-83-8
Tert-butyl 4-(2-acetamidoethyl)-4-hydroxypiperidine-1-carboxylate 2680794-66-3
{[3-(Azetidin-3-yloxy)phenyl]methyl}dimethylamine 2229163-49-7
tert-butyl 3-hydroxy-3-[1-(N-methylacetamido)ethyl]azetidine-1-carboxylate 2680742-89-4
tert-butyl (3R,4R)-4-acetamido-3-hydroxypiperidine-1-carboxylate 2679806-04-1
1-(3a-amino-octahydro-1H-indol-1-yl)propan-1-one 2137783-83-4
2-(4-Phenoxyphenyl)-2-(2,2,2-trifluoroacetamido)propanoic acid 2680741-18-6

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