CAS number index

CAS numbers starting with 20, page 3

7,121 chemicals have a CAS number that starts with 20. They are listed in CAS order.

Showing 201 to 300 of 7,121 chemicals

CAS numberChemical nameFormulaMol. weight

2003057-02-9(1R,2S)-2-(4-Bromophenyl)cyclopropane-1-sulfonyl chlorideC₉H₈BrClO₂S295.58
2003061-84-3tert-Butyl N-(2-oxohex-5-en-1-yl)carbamateC₁₁H₁₉NO₃213.28
20031-16-7L-Rhamnono-1,4-lactoneC₆H₁₀O₅162.14
20031-21-41,2-O-Isopropylidene-alpha-D-xylofuranoseC₈H₁₄O₅190.19
2003197-53-15-[1-(1,3-Dimethoxypropan-2-yl)-5-morpholin-4-yl-benzimidazol-2-yl]-1,3-dimethyl-pyridin-2-oneC₂₃H₃₀N₄O₄426.52
20032-79-54-(2-Amino-2-carboxyethyl)benzo[c]-2,1,3-thiadiazole hydrochlorideC₉H₁₀ClN₃O₂S259.72
2003234-63-5(R)-3-((2-Chlorophenyl)thio)-4-hydroxy-6-(4-morpholinophenyl)-6-(thiophen-3-yl)-5,6-dihydropyridin-2(1H)-oneC₂₅H₂₃ClN₂O₃S₂499.06
2003260-55-53-(8-Hydroxyquinolin-6-yl)-N-(3-phenylpropyl)benzamideC₂₅H₂₂N₂O₂382.46
20033-38-9N-(Prop-2-yn-1-yl)hydroxylamine hydrochlorideC₃H₆ClNO107.54
20033-96-91-(5-Chloro-1H-1,3-benzodiazol-2-yl)ethan-1-olC₉H₉ClN₂O196.64
20033-97-01-(5-Methyl-1H-1,3-benzodiazol-2-yl)ethan-1-olC₁₀H₁₂N₂O176.22
20033-99-2(6-Methoxy-1H-benzimidazol-2-yl)methanolC₉H₁₀N₂O₂178.19
200335-41-7Fmoc-D-aspartic acid alpha-amideC₁₉H₁₈N₂O₅354.36
200335-68-8Methyl (3S,4S,5S,6S)-6-chloro-3,4,5-trihydroxy-1-cyclohexene-1-carboxylateC₈H₁₁ClO₅222.62
200336-46-51-Bromo-2-methoxy-4-propoxybenzeneC₁₀H₁₃BrO₂245.12
200337-27-5Naphthalen-1-yl-[1,3]thiazepan-2-ylidene-amineC₁₅H₁₆N₂S256.37
200339-30-65,8-Dihydroindolo[2,3-c]carbazoleC₁₈H₁₂N₂256.31
20034-00-8(5-Nitro-1H-1,3-benzodiazol-2-yl)methanolC₈H₇N₃O₃193.16
20034-02-0(5-Methyl-1H-1,3-benzodiazol-2-yl)methanolC₉H₁₀N₂O162.19
20034-50-84-CyclopropylbenzaldehydeC₁₀H₁₀O146.19
20034-51-92-CyclopropylbenzaldehydeC₁₀H₁₀O146.19
2003400-40-44-Chloro-6-methyl-N-(prop-2-yn-1-yl)-1,3,5-triazin-2-amineC₇H₇ClN₄182.61
200344-33-8(2R)-5-(Carbamoylamino)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pentanoic acidC₂₁H₂₃N₃O₅397.43
200345-93-3Cgs-7181C₂₀H₁₇F₃N₂O₄406.36
200348-34-1Methyl 7-oxo-7H-benzo(C)fluorene-6-carboxylateC₁₉H₁₂O₃288.30
200348-48-77-Methyl-3-(4,5,6-trihydroxy-3-oxo-3H-xanthen-9-yl)bicyclo[2.2.1]hept-5-ene-2-carboxylic acidC₂₂H₁₈O₇394.38
200348-81-8N,N'-(2-Methyl-1,4-phenylene)bis(benzenesulfonamide)C₁₉H₁₈N₂O₄S₂402.50
20035-32-94-Bromo-3-hydroxybenzaldehydeC₇H₅BrO₂201.02
20035-41-06-Bromo-2-hydroxy-3-methoxybenzaldehydeC₈H₇BrO₃231.04
20035-44-35-Bromo-3-ethoxy-2-hydroxybenzaldehydeC₉H₉BrO₃245.07
200350-17-0Methyl(2-(2-methylphenoxy)ethyl)amineC₁₀H₁₅NO165.24
200350-27-22,2-Dichloro-N-(5-chloro-2-methylphenyl)acetamideC₉H₈Cl₃NO252.53
200352-28-9(1S,2R)-2-Aminocyclohexan-1-ol hydrochlorideC₆H₁₄ClNO151.64
200352-53-0N-Hydroxy(4-methoxyphenyl)-methanamine hydrochlorideC₈H₁₂ClNO₂189.64
2003526-51-86-(Prop-2-enoyl)-6-azaspiro[2.5]octane-1-carboxylic acidC₁₁H₁₅NO₃209.25
200353-65-7(S)-2-Amino-3-(tert-butylthio)propanoic acid hydrochlorideC₇H₁₆ClNO₂S213.73
200354-34-3(2R)-3-(Ethylsulfanyl)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acidC₂₀H₂₁NO₄S371.46
20036-72-02-IsopropylcycloheptanoneC₁₀H₁₈O154.25
20036-97-9N-(3-Cyano-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)acetamideC₁₁H₁₂N₂OS220.30
2003614-54-62-Chloro-1-(6-oxaspiro[2.5]octan-2-yl)ethanoneC₉H₁₃ClO₂188.65
2003625-60-12-(4-Ethynyl-2-fluorophenyl)acetic acidC₁₀H₇FO₂178.16
20037-18-7Methyl 5-methoxy-3-methyl-1-benzofuran-2-carboxylateC₁₂H₁₂O₄220.22
20037-36-9Ethyl 2-(4-bromo-2-formyl-6-methoxyphenoxy)acetateC₁₂H₁₃BrO₅317.13
20037-37-05-Bromo-7-methoxy-2-benzofurancarboxylic acidC₁₀H₇BrO₄271.07
20037-38-12-(4-Bromo-2-formyl-6-methoxyphenoxy)acetic acidC₁₀H₉BrO₅289.08
2003720-33-83-(2-Chloropropyl)oxolaneC₇H₁₃ClO148.63
2003750-33-02-(2-tert-Butyl-2H-1,2,3,4-tetrazol-5-yl)ethan-1-amineC₇H₁₅N₅169.23
2003765-62-4tert-Butyl N-[(4-methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)methyl]carbamateC₉H₁₆N₄O₃228.25
2003788-82-5(1-(Methoxymethyl)cyclopent-3-en-1-yl)methanolC₈H₁₄O₂142.20
2003835-30-93-(1-Methyl-1H-pyrazol-4-yl)-1,2-oxazole-4-carboxylic acidC₈H₇N₃O₃193.16
2003876-58-05-(Chloromethyl)-4-cyclopropyl-1-methyl-1H-pyrazoleC₈H₁₁ClN₂170.64
20039-33-2Phosphorisocyanatidic acid, diethyl esterC₅H₁₀NO₄P179.11
20039-37-6Dipyridinium dichromateC₁₀H₁₂Cr₂N₂O₇376.20
20039-91-22-Bromo-4-methyl-6-nitrophenolC₇H₆BrNO₃232.03
20039-94-52,4-Bis(tert-butyl)-6-nitrophenolC₁₄H₂₁NO₃251.33
2003928-77-42-Chloro-1-ethynyl-3-fluorobenzeneC₈H₄ClF154.57
200393-05-1Ademetionine butanedisulfonateC₁₉H₃₂N₆O₁₁S₃616.70
200393-68-64-[Methyl(methylsulfonyl)amino]benzoic acidC₉H₁₁NO₄S229.26
200394-14-5N-(2-Methyl-4-nitrophenyl)-2-furamideC₁₂H₁₀N₂O₄246.22
2003942-83-2[2-(2,2-Difluoroethyl)oxolan-2-yl]methanolC₇H₁₂F₂O₂166.17
200396-19-6(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl 5-hydroxy-1,3-oxathiolane-2-carboxylateC₁₄H₂₄O₄S288.41
2003969-29-5[1-(Prop-2-en-1-yl)cyclopent-3-en-1-yl]methanolC₉H₁₄O138.21
200398-40-91-(2-(4-(6-Fluoro-1,2-benzisoxazol-3-yl)piperidin-1-yl)ethyl)-3-phenylimidazolin-2-oneC₂₃H₂₅FN₄O₂408.48
2003985-34-82-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(1-methylcyclohexyl)acetic acidC₂₄H₂₇NO₄393.48
200399-47-9SalacinolC₉H₁₈O₉S₂334.37
2004-03-76-MethylpurineC₆H₆N₄134.14
2004-04-8Angustmycin AC₁₁H₁₃N₅O₄279.26
2004-06-06-Chloropurine ribonucleosideC₁₀H₁₁ClN₄O₄286.68
2004-07-12-Amino-6-chloropurine ribosideC₁₀H₁₂ClN₅O₄301.69
2004-14-0Lithium trimethylsilanolateC₃H₉LiOSi96.13
2004-39-91-HeptacosanolC₂₇H₅₆O396.74
2004-62-81,6-Bis(beta-cyanoethylamino)hexaneC₁₂H₂₄N₄+₂224.35
2004-69-53-Penten-1-yneC₅H₆66.10
200400-76-6Ethyl 2-(4-hydroxyphenyl)oxazole-4-carboxylateC₁₂H₁₁NO₄233.22
20041-26-3Benzenamine, 4-ethoxy-N-(3-phenyl-2-propenylidene)-C₁₇H₁₇NO251.33
20041-47-82-Propanol, 1-(isopropylamino)-3-(p-menth-3-yloxy)-, hydrochlorideC₁₆H₃₄ClNO₂307.91
20041-61-62-Hydroxy-3-methoxy-4-nitrobenzaldehydeC₈H₇NO₅197.15
20041-64-92,3-Dibromo-5-ethoxy-6-hydroxybenzaldehydeC₉H₈Br₂O₃323.97
20041-74-11-(Methylamino)propan-2-one hydrochlorideC₄H₁₀ClNO123.58
20041-90-1CaffeidineC₇H₁₂N₄O168.20
200413-10-13-Chloro-5,6,7,8-tetrahydrocinnoline-4-carbonitrileC₉H₈ClN₃193.64
200413-63-41-(Piperidin-4-yl)-1,2,3,4-tetrahydroquinolineC₁₄H₂₀N₂216.33
200417-21-64-(4-Methylpiperidin-1-yl)aniline hydrochlorideC₁₂H₁₉ClN₂226.75
200417-31-8Methyl 3-[(2,2-dimethylpropanoyl)amino]benzoateC₁₃H₁₇NO₃235.28
200417-41-0N-(6-Methyl-2-pyridyl)glutaramic acidC₁₁H₁₄N₂O₃222.24
200418-23-17-Methyl-octahydropyrrolo(1,2-a)piperazin-6-oneC₈H₁₄N₂O154.21
200421-25-61,2-Benzisothiazol-3(2H)-one, 2-amino-C₇H₆N₂OS166.21
2004214-87-1(1-(1,1-Difluoroethyl)cyclopropyl)methanesulfonyl chlorideC₆H₉ClF₂O₂S218.65
200422-30-66-[(3-Nitrophenyl)carbamoyl]cyclohex-3-ene-1-carboxylic acidC₁₄H₁₄N₂O₅290.27
200425-74-7(1R)-6-Methoxy-2,3-dihydro-1H-inden-1-olC₁₀H₁₂O₂164.20
200431-54-53-(Pyridin-3-ylcarbamoyl)bicyclo[2.2.1]hept-5-ene-2-carboxylic acidC₁₄H₁₄N₂O₃258.28
200431-94-32-[(3-Pyridinylamino)carbonyl]cyclohexanecarboxylic acidC₁₃H₁₆N₂O₃248.28
200431-98-7N-(Pyridin-3-ylmethyl)-1H-1,2,4-triazol-5-amineC₈H₉N₅175.19
200432-87-7(1S,6S)-2-(6-Chloropyridin-3-yl)-9-azabicyclo[4.2.1]non-2-eneC₁₃H₁₅ClN₂234.73
200432-88-85-(6-Chloro-3-pyridinyl)-9-azabicyclo[4.2.1]non-4-eneC₁₃H₁₅ClN₂234.73
200434-67-9SynadenolC₁₀H₁₁N₅O217.23
200435-92-31-((1S,3R,4R,7S)-7-Hydroxy-1-(hydroxymethyl)-2,5-dioxabicyclo[2.2.1]heptan-3-yl)pyrimidine-2,4(1H,3H)-dioneC₁₀H₁₂N₂O₆256.21
2004370-96-9tert-Butyl N-(6-acetylpyridin-2-yl)carbamateC₁₂H₁₆N₂O₃236.27
2004404-03-73-(3-(Piperidin-1-yl)propyl)-1,3-oxazolidin-2-oneC₁₁H₂₀N₂O₂212.29
20045-77-6Methyl (2S)-2-(methylamino)propanoate hydrochlorideC₅H₁₂ClNO₂153.61

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