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-(Butan-2-yl)-7-methylimidazo[1,2-a]pyridine-3-sulfonyl chloride 2138053-24-2
N-ethyl-4-(5-formylthiophen-3-yl)-3-methylbenzene-1-sulfonamide 2171858-27-6
Methyl 2-amino-3-(cyclohex-3-en-1-yl)-3-methylbutanoate 2228129-09-5
1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 5H,6H,7H,8H-[1,2,4]triazolo[1,5-a]pyridine-5-carboxylate 2248326-11-4
4-(Benzyloxy)-2-fluoro-1-(3-methoxyphenyl)benzene 2172099-19-1
(2R)-2-{2-[(1RS,2RS)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohexyl]acetamido}propanoic acid 2227866-95-5
3-[({1-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopropyl}formamido)methyl]-2,2-difluorocyclopropane-1-carboxylic acid 2172063-47-5
3-{[3-cyclopropyl-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]methyl}-2,2-difluorocyclopropane-1-carboxylic acid 2172003-60-8
3-{[2-cyclopropyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]methyl}-2,2-difluorocyclopropane-1-carboxylic acid 2172026-51-4
2-Azido-1-(5-chloropyridin-2-yl)ethan-1-ol 2013111-78-7
(1R)-2-azido-1-(5-chloropyridin-2-yl)ethan-1-ol 2015412-41-4
3-Bromo-2-butyl-7-methylimidazo[1,2-a]pyridine 2138575-78-5
3-Ethyl-7-fluoro-1,2,3,4-tetrahydronaphthalen-1-one 2137792-82-4
3-Bromo-2-cyclohexyl-7-methylimidazo[1,2-a]pyridine 2138555-09-4
2-{Bicyclo[2.2.1]heptan-2-yl}-3-bromo-7-methylimidazo[1,2-a]pyridine 2138058-83-8
3-Bromo-2-cyclopropyl-8-methylimidazo[1,2-a]pyridine 2138058-92-9
3-Bromo-8-methyl-2-propylimidazo[1,2-a]pyridine 2138572-77-5
3-Bromo-8-methyl-2-(2-methylbutan-2-yl)imidazo[1,2-a]pyridine 2138059-02-4
2-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl) 3-methyl oxolane-2,3-dicarboxylate 2248313-79-1
3-Bromo-2-ethyl-8-methylimidazo[1,2-a]pyridine 2138538-34-6
5-(2-Methanesulfonylethyl)-1,2-oxazol-3-amine 2229182-80-1
3-Bromo-2-(oxolan-3-yl)imidazo[1,2-a]pyridine 2138543-00-5
3-Bromo-2-cyclohexylimidazo[1,2-a]pyridine 2138059-27-3
3-(3-Bromo-2-methoxyphenyl)-3-methylbutan-1-amine 2228638-24-0
3-Bromo-2-cyclopropyl-5-methylimidazo[1,2-a]pyridine 2138048-13-0
3-Bromo-5-methyl-2-(propan-2-yl)imidazo[1,2-a]pyridine 2138048-22-1
1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 5-sulfamoyl-1,3-thiazole-4-carboxylate 2248283-47-6
(1R)-2-amino-1-[5-(4-methylphenyl)furan-2-yl]ethan-1-ol 2227672-91-3
2-(1-isocyanatoethyl)-1-methyl-1H-imidazole 2649061-99-2
3-[4-(benzyloxy)phenyl]-1,4-dimethyl-1H-pyrazol-5-amine 1859730-01-0
3-[2-(benzyloxy)phenyl]-1-methyl-1H-pyrazol-5-amine 1877963-42-2
(3R)-3-(3,5-dimethoxy-4-methylphenyl)-3-hydroxypropanoic acid 2227819-77-2
3-(2-Trifluoromethanesulfonylethoxy)azetidine 2138097-20-6
3-{[1-(Methanesulfonylmethyl)cyclopropyl]methoxy}azetidine 2138092-91-6
5-[(azetidin-3-yloxy)methyl]-1-(propan-2-yl)-1H-1,2,3,4-tetrazole 2138048-31-2
1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 5-(1,2-dithiolan-4-yl)pentanoate 2248404-88-6
5-[(azetidin-3-yloxy)methyl]-1-propyl-1H-1,2,3,4-tetrazole 2138048-34-5
3-[(azetidin-3-yloxy)methyl]-5-ethyl-4-methyl-4H-1,2,4-triazole 2138121-45-4
2-[2-Chloro-5-(trifluoromethyl)pyridin-3-yl]-2,2-difluoroethan-1-ol 2228987-59-3
1-[2-(azetidin-3-yloxy)ethyl]-3,5-dimethyl-1H-1,2,4-triazole 2138531-53-8
3-(Azetidin-3-yloxy)-1-cyclopropylpyrrolidin-2-one 2138563-86-5
5-[2-cyclopropyl-N-ethyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetamido]pentanoic acid 2171780-39-3
2-(2,2-Dimethylpropyl)imidazo[1,2-a]pyridine-3-carbaldehyde 2138048-46-9
2-Cycloheptylimidazo[1,2-a]pyridine-3-carbaldehyde 2138571-55-6
{1-[5-Chloro-2-(difluoromethoxy)phenyl]cyclobutyl}methanol 2229541-18-6
2-(Oxan-4-yl)imidazo[1,2-a]pyridine-3-carbaldehyde 2138093-02-2
3-{3-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethoxy]propanamido}-4,4-difluorobutanoic acid 2171863-52-6
2-(2-Methylpropyl)imidazo[1,2-a]pyridine-3-carbaldehyde 2138538-39-1
1-(2-Chloro-6-hydroxyphenyl)-2,2-difluoroethan-1-one 2228976-57-4
5-Methyl-2-(oxan-4-yl)imidazo[1,2-a]pyridine-3-carbaldehyde 2138554-54-6

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