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
(3,4-Dihydro-7-hydroxy-2-oxoquinolin-1(2h)-yl)methyl 2-(2-butoxyethoxy)acetate 1427053-34-6
6-Chloro-2-ethyl-1-methyl-1H-indole-3-carboxylic acid 1784299-01-9
6-Chloro-2-ethyl-3-methyl-1H-indole-5-carboxylic acid 1784299-10-0
2-(3-Bromo-4-fluorophenoxy)pyrazine 1548463-40-6
4-Bromo-6-methylisoquinolin-1(2H)-one 1784797-56-3
3-Bromo-7-cyclopropylpyrazolo[1,5-a]pyrimidine 1784797-83-6
5-(4-Bromophenyl)-1-methyl-1H-1,2,4-triazole 1781447-22-0
4-Tert-butylthiophene-3-carboxylic acid 1495814-93-1
7-Bromo-2-cyclopropyl-3H-imidazo[4,5-b]pyridine 1781447-33-3
3-(4-Bromophenyl)-3-azabicyclo[3.1.0]hexane 1785592-21-3
5-Bromo-4-methyl-1H-pyrazole-3-carbaldehyde 2167567-09-9
2-Phenyl-1H-pyrrolo[2,3-b]pyridine-3-carboxylic acid 1261804-09-4
6-(Trifluoromethyl)isoxazolo[5,4-b]pyridin-3-amine 1242515-52-1
3-Bromo-1-(4-chlorophenyl)-1H-pyrazole 1622843-29-1
1-(4-bromo-2-chlorophenyl)-1H-pyrazole 1784581-61-8
4,4-Difluoro-3-methylbutanoic acid 1785096-82-3
2-(1-methyl-1H-indol-5-yl)ethane-1-sulfonyl chloride 1784301-65-0
2-(1-methyl-1H-indol-6-yl)ethane-1-sulfonyl chloride 1785004-74-1
2-(1-methyl-1H-indol-7-yl)ethane-1-sulfonyl chloride 1781553-73-8
5-Bromo-7-methoxy-3-methylbenzo[d]oxazol-2(3H)-one 1780990-79-5
2-(Azetidin-1-yl)-5-bromopyrimidine-4-carboxylic acid 1780970-29-7
5-Bromo-3-(2-fluoropropan-2-yl)benzo[d]isoxazole 1780970-59-3
7-Bromo-6-methoxychroman-4-amine 1780970-80-0
Benzeneacetic acid, 5-chloro-I+/--[(3-ethoxypropyl)amino]-2-hydroxy- 1779348-32-1
2,4-dichloro-6-(2-methyl-5-propan-2-ylphenyl)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidine 1421254-65-0
3-(3-Bromo-4-fluorophenoxy)piperidine 1551737-18-8
2-Azepan-1-yl-2-oxo-ethanesulfonyl chloride 1602105-56-5
4-(3-Bromo-4-fluorophenoxy)piperidine 1549103-31-2
4-Bromo-6-hydroxy-1(2H)-isoquinolinone 1459214-51-7
3-(Iodomethyl)-3-propan-2-yloxetane 1784641-55-9
8-Bromo-2-(1-methylethyl)imidazo[1,2-a]pyrazine 850406-40-5
Tert-butyl (3R)-3-[(2-chloro-5-fluoropyrimidin-4-yl)amino]piperidine-1-carboxylate 1421757-69-8
1-(7-Bromo-2,3-dihydro-1H-inden-5-yl)ethan-1-amine 1337661-00-3
1-(5-Chlorofuran-2-yl)cyclobutan-1-amine 1780302-10-4
4-(2-Amino-1,1-difluoroethyl)benzonitrile 1548378-96-6
2-(2,3-Dimethylphenyl)-2,2-difluoroethan-1-amine 1549563-32-7
2-Bromo-6-phenylpyridine-4-carboxylic acid 1547625-18-2
2-((1r,4r)-4-((2-Chloro-5-methylpyrimidin-4-yl)amino)cyclohexyl)acetonitrile 1421757-60-9
2-Amino-1-(2,3-difluorophenyl)propan-1-one 1602983-47-0
Methyl 3-amino-5,5,5-trifluoropentanoate 1391284-35-7
Tert-butyl 4-bromo-3-chlorobenzoate 1494593-59-7
2-(4-Ethylphenyl)-2,2-difluoroethan-1-amine 1556376-00-1
2-(4-Bromo-2-fluorophenyl)-2,2-difluoroethan-1-amine 1551592-51-8
2,2-Difluoro-2-(4-methyl-3-nitrophenyl)ethan-1-amine 1555377-86-0
3,5-Bis(1-naphthalenyloxy)benzenamine 850815-41-7
3-[2-Methoxy-3-(trifluoromethyl)phenyl]pyrrolidine 1784300-36-2
2-(3-Bromo-4-fluorophenoxy)-N-cyclopropyl-N-methylacetamide 1551592-90-5
4-(tert-Butyl)-6-chloropyridin-2-amine 1487990-71-5
5,5 inverted exclamation mark-[[Cyclohexane-1,1-diylbis(4,1-phenylene)]bis(oxy)]bis(isobenzofuran-1,3-dione) 125567-05-7
3-Amino-5-(4-bromo-3-chlorophenyl)pyrazole 2230798-83-9

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