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
3-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-(methoxymethyl)propanamido]-1-methyl-1H-pyrazole-4-carboxylic acid 2172469-71-3
3-[3-cyclopropyl-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-N-propylpropanamido]propanoic acid 2172163-68-5
4-{1-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)but-2-ynoyl]azetidin-3-yl}butanoic acid 2172163-82-3
rac-4-{1-[(2R,3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)oxolane-2-carbonyl]azetidin-3-yl}butanoic acid 2227727-57-1
4-{1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3,3,3-trifluoropropanoyl]azetidin-3-yl}butanoic acid 2171585-10-5
rac-2-{1-[(1R,2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohexyl]-N-methylformamido}-2-methylpropanoic acid 2227650-86-2
rac-4-{[(1R,2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohexyl]formamido}-2-methylbutanoic acid 2227987-69-9
3-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-N-propylpentanamido}propanoic acid 2172101-31-2
(3S)-3-({4-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]phenyl}formamido)butanoic acid 2171169-07-4
3-[(2R)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-(methylsulfanyl)-N-propylbutanamido]propanoic acid 2171224-66-9
3-[(2-{[(Prop-2-en-1-yloxy)carbonyl]amino}ethyl)amino]propanoic acid 2680854-12-8
4-(tert-Butyl)-5-fluorobenzene-1,2-diamine 2893803-32-0
benzyl N-{6-benzyl-3-cyano-4H,5H,6H,7H-thieno[2,3-c]pyridin-2-yl}carbamate 2680752-22-9
Benzyl 3-{1-[(4-cyanophenyl)methyl]piperidin-4-yl}pyrrolidine-1-carboxylate 2680667-73-4
benzyl N-(6-bromo-3-chloro-2-fluoro-4-nitrophenyl)carbamate 2680864-99-5
benzyl N-(8-iodoquinolin-4-yl)carbamate 2680818-23-7
(2R,3R)-3-bromo-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoic acid 2679919-13-0
2-(Methylsulfanyl)-5-(2,2,2-trifluoroacetamido)benzoic acid 2680670-50-0
1-{[(Benzyloxy)carbonyl]amino}-3-(3-bromophenyl)cyclobutane-1-carboxylic acid 2356428-68-5
2,2-dimethyl-1-(1-methyl-1H-pyrazol-3-yl)cyclopropan-1-amine 2228776-31-4
prop-2-en-1-yl N-(1-carbamimidoylcyclopropyl)carbamate 2680810-65-3
benzyl 5-bromo-3-(2-methoxy-2-oxoethyl)-2,3-dihydro-1H-indole-1-carboxylate 2680827-97-6
3-(Difluoromethoxy)-4-acetamidobenzoic acid 2680854-13-9
benzyl N-(4-chloro-3-sulfamoylphenyl)carbamate 2680865-04-5
3-(3-Fluoro-5-methylphenyl)-3-hydroxypropanoic acid 2228680-35-9
1-(4-Bromo-1-benzofuran-2-yl)butan-1-one 2137823-22-2
2-(1-Hydroxycyclohexyl)-7-oxabicyclo[2.2.1]heptane-2-carboxylic acid 2172605-68-2
3-cyclobutyl-1-(propan-2-yl)-1H-pyrazole-5-carboxylic acid 2171875-45-7
4-Cyclopropyl-2-methylidenepentanoic acid 2228837-84-9
(2R)-2-({3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-2,2-difluorocyclopropyl}formamido)-3-hydroxypropanoic acid 2648929-22-8
2-(4-cyclopropyl-5-methyl-4H-1,2,4-triazol-3-yl)-2,2-difluoroacetic acid 2138120-47-3
2-[Methyl(propan-2-yl)amino]quinazoline-5-carboxylic acid 2138120-86-0
Poly(oxy-1,2-ethanediyl), I+/--[6-[(2,5-dioxo-1-pyrrolidinyl)oxy]-1,6-dioxohexyl]-I-[[6-[(2,5-dioxo-1-pyrrolidinyl)oxy]-1,6-dioxohexyl]oxy]- 944147-22-2
1-[(1S,4R)-2-[(tert-butoxy)carbonyl]-2-azabicyclo[2.1.1]hexan-5-yl]-3-hydroxycyclobutane-1-carboxylic acid 2228020-79-7
5-(1-{[(Tert-butoxy)carbonyl]amino}cyclobutyl)-1,2-oxazole-3-carboxylic acid 2228306-34-9
tert-butyl N-[3-amino-2-methyl-2-(1-methyl-1H-1,3-benzodiazol-5-yl)propyl]carbamate 2228780-03-6
Methyl 2-amino-4-cyclopentyl-3,3-dimethylbutanoate 2228130-96-7
rac-(1R,3R)-3-(4-bromo-2-hydroxyphenyl)-2,2-dimethylcyclopropane-1-carboxylic acid 2227834-35-5
5-(3-Bromo-2-fluorophenyl)-1,2-oxazole-4-carboxylic acid 2229214-44-0
4-(5-Bromofuran-2-yl)-2-methylbutanoic acid 1871965-11-5
5-(3-Bromophenyl)-2-hydroxy-2-methylpentanoic acid 2228784-24-3
2-(4-{[(Tert-butoxy)carbonyl]amino}-2-hydroxyphenyl)-2-methylpropanoic acid 2228784-32-3
2-[1-(4-{[(Tert-butoxy)carbonyl]amino}-2-hydroxyphenyl)cyclobutyl]acetic acid 2228167-39-1
2-(6-Bromopyridin-3-yl)-2-hydroxyacetic acid 1346542-76-4
(3S)-3-(5-bromo-2-methylphenyl)-3-hydroxypropanoic acid 2227877-02-1
tert-butyl N-[2-(3-amino-1,1-difluoropropan-2-yl)-4-methoxyphenyl]carbamate 2229034-04-0
methyl 1-methyl-5-[1-(methylamino)cyclopropyl]-1H-pyrazole-4-carboxylate 2228426-32-0
tert-butyl N-[2-methyl-4-(pyrrolidin-3-yloxy)phenyl]carbamate 2228347-06-4
Methyl 6-(1-amino-3,3-difluorocyclobutyl)pyridine-3-carboxylate 2228225-63-4
tert-butyl N-{3-[2-(aminooxy)propan-2-yl]oxolan-3-yl}carbamate 2228118-09-8

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