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-Chloro-4-(methoxymethyl)phenyl)oxetan-3-ol 1610416-82-4
1-Bromo-2-(bromomethyl)-4,5-dimethylbenzene 2090556-71-9
3-Cyclobutylisonicotinonitrile 1610416-95-9
Thiazolidine-4-carboxamide 1,1-dioxide 1613363-21-5
4-(2-Chloro-6-fluorophenyl)-3-(methylsulfonyl)-1H-pyrazole 1707563-50-5
6-(Azetidin-1-yl)pyridine-3,4-diamine 1425023-29-5
4-(2-Chlorophenyl)-3-(ethylsulfonyl)-1H-pyrazole 1708259-41-9
5-Oxononanamide 90950-35-9
1-(3-Hydrazinylpyrazin-2-yl)azepane 1707567-32-5
1-(5-Amino-4-methyl-1-phenyl-1H-pyrazol-3-yl)ethanone 1610374-16-7
5-((Methoxyimino)methyl)-2-propoxybenzoic acid 943751-55-1
3-((1-((4-Chlorobenzyl)sulfonyl)azetidin-3-yl)oxy)pyridine 1903115-49-0
N-(4-carbamimidoyl-3-methoxyphenyl)-N-oxohydroxyla 1378814-13-1
Ethyl 8-bromoimidazo[1,2-a]pyridine-3-carboxylate;sulfuric acid 1397198-82-1
3-((1-((3-Fluoro-4-methoxyphenyl)sulfonyl)azetidin-3-yl)oxy)pyridine 1903202-84-5
(2R)-N-Ethyl-N-methylpyrrolidine-2-carboxamide 1604272-99-2
4-[3-(pentafluoroethyl)phenyl]-1H-imidazole 2228537-98-0
N1-(furan-2-ylmethyl)-N2-((5-(hydroxy(thiophen-3-yl)methyl)thiophen-2-yl)methyl)oxalamide 2034355-27-4
rac-3-[(1R,3R)-3-(aminomethyl)-2,2-dimethylcyclopropyl]phenol 2227667-83-4
1-(3-Butyl-1,2,4-thiadiazol-5-yl)piperazine 1823580-40-0
(2R)-5-(1H-indol-3-yl)pentan-2-amine 2227915-40-2
Methyl (1R,3R)-3-(hydroxymethyl)cyclopentane-1-carboxylate 2387565-82-2
1-[3-(2-Methoxyethyl)-1,2,4-thiadiazol-5-yl]piperazine 1822787-57-4
7-Bromo-5-methyl-2-(piperidin-1-ylmethyl)thieno[3,2-c]pyridin-4-one 1610520-56-3
(R)-N-(2-Oxotetrahydrofuran-3-yl)tetradecanamide 2260669-89-2
rac-[(1R,3R)-3-benzyl-2,2-dimethylcyclopropyl]methanamine 2227880-37-5
2-(4-Fluorophenyl)-1-methylpyrrolidin-3-amine 2219376-30-2
Ethyl 1-benzyl-2,5-dimethyl-1H-imidazole-4-carboxylate 1431308-32-5
N-(3-chlorophenyl)-1-(cyclopropanesulfonyl)azetidine-3-carboxamide 1706064-85-8
Methyl 5-methoxy-1-(triisopropylsilyl)-1H-indole-4-carboxylate 1431308-41-6
(3S,4R)-4-Cyclopentylpyrrolidin-3-ol 1932333-08-8
(S)-1-(1,2,3,4-Tetrahydroquinolin-6-yl)ethan-1-ol 2387568-93-4
Ethyl 5-bromo-6-(trifluoromethyl)nicotinate 1481688-49-6
Imidazo[1,2-a]pyridin-3-amine, 2-(6-methoxy-3-pyridinyl)-8-methyl- 1610586-26-9
[(2-Hydroxypyridin-3-yl)oxy]acetic acid 2171858-76-5
3-Ethyl-3-(3-methyl-4-nitrophenoxy)oxetane 1627094-08-9
2-(1-(5-Chloro-2-methylphenyl)-3,5-dimethyl-1H-pyrazol-4-yl)acetic acid 1268017-03-3
7-Bromo-5-methyl-2-[(3-methylmorpholin-4-yl)methyl]thieno[3,2-c]pyridin-4-one 1610520-57-4
4-Bromo-3-(cyclopropylmethoxy)pyridine 1610521-11-3
2,4-Dimethyl-6-(tetrahydro-3-furanyl)phenol 1572185-40-0
2-(4-Chloro-2-fluorophenyl)-2,2-difluoroethan-1-amine 1004284-96-1
4-(2-Oxa-7-azaspiro[3.5]non-7-yl)-3-pyridinamine 1613192-38-3
1-Phenyl-1H-indazole-4-carboxylic acid methyl ester 1431308-25-6
4-(3-Methyl-4-nitrophenyl)-1,3-thiazol-2-amine 1823289-28-6
(2S,3R)-2-Amino-3-hydroxy-5-methylhexanoic acid 910891-85-9
2-(Trimethylsilyl)ethyl 3-formylbenzoate 1432125-85-3
6-[[(1,1-Dimethylethyl)diphenylsilyl]oxy]benzo[b]thiophene 1431308-28-9
2-Chloro-5-[(2-fluoro-phenyl)-methyl-amino]-benzoic acid methyl ester 1394346-68-9
1-Propyl-1H-pyrazole-5-carbonitrile 1602948-20-8
(2R)-2-(4-chlorophenyl)-2-methoxyaceticacid 2349802-38-4

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