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-(But-3-en-2-yloxy)-2,2-difluoropropyl](methyl)amine 2137666-84-1
Spiro[5,12-epoxybenzocyclodecene-1(2H),2a(2)-oxirane]-2,6,9-triol, dodecahydro-6-methyl-10-methylene-4-(1-methylethyl)-, 2,6-diacetate, (1S,2S,4R,4aR,5R,6R,9S,12R,12aS)- 1343433-88-4
2,2-difluoro-3-{hexahydro-1H-thieno[3,4-c]pyrrol-5-yl}propan-1-amine 2137674-42-9
3-[Ethyl(2-methylpropyl)amino]-2,2-difluoropropanoic acid 2137596-24-6
3-[3-(Difluoromethyl)azetidin-1-yl]-2,2-difluoropropan-1-amine 2137596-27-9
2,2-Difluoro-3-[(2-methoxypropyl)(methyl)amino]propanoic acid 2137603-48-4
2,2-difluoro-3-(3-methyl-1H-pyrazol-1-yl)propanehydrazide 2137658-38-7
(2S,3R)-3-(benzyloxy)-2-{[(1RS,2SR)-2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclohexyl]formamido}butanoic acid 2227809-60-9
Poly(oxy-1,2-ethanediyl), I+/--[[(2,5-dioxo-1-pyrrolidinyl)oxy]carbonyl]-I-[2-[[5-[(3aS,4S,6aR)-hexahydro-2-oxo-1H-thieno[3,4-d]imidazol-4-yl]-1-oxopentyl]amino]ethoxy]- 211746-14-4
5-[(2S)-2-aminopropyl]thiophene-2-carbonitrile 1336512-86-7
[2,2-Difluoro-3-(methylamino)propyl](methyl)[(2-methylcyclopropyl)methyl]amine 2137658-57-0
[2,2-Difluoro-3-(methylamino)propyl]dipropylamine 2138198-85-1
2,2-Difluoro-3-[(2-methoxy-2-oxoethyl)amino]propanoic acid 2137766-52-8
2,2-Difluoro-3-[methyl(propan-2-yl)amino]propanehydrazide 2137693-53-7
3-[(2,3-Dihydroxypropyl)amino]-2,2-difluoropropanoic acid 2137742-26-6
2,2-Difluoro-3-(2-methylpiperidin-1-yl)propanoic acid 2137732-31-9
N-methyl-1-(1-methyl-1H-imidazol-5-yl)cyclopropan-1-amine 2228146-92-5
2,2-Difluoro-3-[(2-methylpropyl)sulfanyl]propanehydrazide 2137689-46-2
2,2-Difluoro-3-[(4-hydroxybutyl)(methyl)amino]propanoic acid 2137988-26-0
2,2-Difluoro-3-[(2-hydroxyethyl)sulfanyl]propanoic acid 2137692-88-5
N-(2-cyclopropylethyl)-1-methyl-2,3-dihydro-1H-indol-5-amine 2166776-32-3
1-(2-Methoxyethyl)-9-methyl-1,7-diazaspiro[4.5]decane 2168463-45-2
1-(3-Fluoropropyl)-1,7-diazaspiro[4.5]decane 2168786-88-5
1-(2-Methanesulfonylethyl)-1,7-diazaspiro[4.4]nonane 2172468-13-0
rel-(-)-(3aR,5S,9R,11S,12R,16aR)-5-(Acetyloxy)-11-hydroxy-12-methoxy-11,15-dimethyl-3-methylene-7H-13,16-epoxy-9,6-methenofuro[3,2-f]oxacyclopentadecin-2,7(3H)-dione 1020661-83-9
tert-butyl N-[6-(aminomethyl)pyridin-3-yl]-N-(pent-4-yn-1-yl)carbamate 2172198-14-8
tert-butyl N-(2-{[(but-3-en-2-yl)carbamothioyl]amino}ethyl)carbamate 2167096-58-2
1-(4-Bromophenyl)-3-(but-3-en-2-yl)thiourea 2167191-65-1
3-(But-3-en-2-yl)-1-(3-fluorophenyl)thiourea 2169512-65-4
(5R)-3-(but-3-en-2-yl)-5-propyl-2-sulfanylideneimidazolidin-4-one 2166425-42-7
5-(bromomethyl)-N-[(4-chlorophenyl)methyl]-4-methyl-4,5-dihydro-1,3-thiazol-2-amine 2649014-10-6
5-(bromomethyl)-N-[(2-chlorophenyl)methyl]-4-methyl-4,5-dihydro-1,3-thiazol-2-amine 2649071-04-3
5-(bromomethyl)-N-(2-fluorophenyl)-4-methyl-4,5-dihydro-1,3-thiazol-2-amine 2649062-82-6
4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-[[[3-(2-chlorophenyl)-5-methyl-4-isoxazolyl]carbonyl]amino]-3,3-dimethyl-7-oxo-, 4,4-dioxide, [2S-(2I+/-,5I+/-,6I+/-)]- 103078-67-7
2-Amino-4-[[4-[4-[2-[[4-[(3-amino-4-sulfophenyl)amino]-6-chloro-1,3,5-triazin-2-yl]amino]ethyl]-1-piperidinyl]-6-chloro-1,3,5-triazin-2-yl]amino]benzenesulfonic acid 1170267-55-6
(1S)-1-(3-fluoro-2,6-dimethoxyphenyl)ethan-1-amine 2227781-86-2
6-Fluoro-7-methoxy-2,4-dimethylquinoline 2138214-95-4
tert-butyl N-[2-chloro-5-(nitromethyl)phenyl]carbamate 2228357-06-8
2-amino-2-(6-methoxy-1H-indol-2-yl)propan-1-ol 1337598-54-5
2-Bromo-1-(3,4-dibromophenyl)cyclopropane-1-carboxylic acid 2137883-15-7
5-(3-Fluoro-2,6-dimethoxyphenyl)-1,3-oxazolidin-2-one 2229209-06-5
(2R)-4-(5-fluoro-2-nitrophenyl)butan-2-ol 2227770-94-5
3-(Cyclohexylmethyl)but-3-en-1-amine 2229160-76-1
1-(3,5-Dimethoxypyridin-4-yl)ethane-1,2-diol 2229141-41-5
[6-Methyl-3-(pyrimidin-5-yl)pyridin-2-yl]methanol 2137603-05-3
2-(3-Chloropropyl)thiolane 2137795-21-0
3-(1-Phenylcyclopropyl)propanenitrile 2229147-59-3
[1-(1-Isocyanatoethyl)cyclopropyl]benzene 2649064-77-5
tert-butyl N-[2-hydroxy-3-methoxy-5-(piperazin-1-yl)phenyl]carbamate 2228658-25-9
tert-butyl N-[5-(2-aminoethoxy)-2-hydroxy-3-methoxyphenyl]carbamate 2228804-07-5

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