CAS number index

CAS numbers starting with 20, page 58

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

Showing 5,701 to 5,800 of 7,121 chemicals

CAS numberChemical nameFormulaMol. weight

2090088-23-44-Bromo-1,2-oxazole-5-carbonitrileC₄HBrN₂O172.97
2090099-80-0Methyl 3-bromobenzofuran-6-carboxylateC₁₀H₇BrO₃255.07
20901-65-93-Bromo-4-(methylsulfanyl)anilineC₇H₈BrNS218.12
2090110-55-5Ethyl 1H,2H,3H,4H-imidazo[1,5-a]pyrimidine-8-carboxylateC₉H₁₃N₃O₂195.22
2090128-24-65-Bromothieno[2,3-b]pyridine-2-carbonitrileC₈H₃BrN₂S239.10
2090128-87-1Methyl 3-chloro-6-(trifluoromethyl)pyridazine-4-carboxylateC₇H₄ClF₃N₂O₂240.57
2090136-41-5tert-Butyl 7-amino-4-azaspiro(2.5)octane-4-carboxylateC₁₂H₂₂N₂O₂226.32
2090136-69-7Methyl 5-hydroxyspiro[2.3]hexane-1-carboxylateC₈H₁₂O₃156.18
2090138-86-4Ethyl 8-oxa-1-azaspiro[4.5]decane-4-carboxylateC₁₁H₁₉NO₃213.28
2090148-85-76-(Benzyloxy)-5H,6H,7H-pyrazolo[3,2-b][1,3]oxazine-3-carboxylic acidC₁₄H₁₄N₂O₄274.28
2090151-38-3Methyl 4-bromo-5-fluoro-1-benzofuran-2-carboxylateC₁₀H₆BrFO₃273.06
2090155-89-64-Bromo-1,3-dihydro-2lambda6,1-benzothiazole-2,2-dioneC₇H₆BrNO₂S248.10
2090155-98-71-Methylcyclobutane-1-sulfonyl chlorideC₅H₉ClO₂S168.65
2090156-29-71-Bromo-3-(methoxymethyl)cyclobutaneC₆H₁₁BrO179.06
2090165-27-65-(Methoxycarbonyl)-3-methylfuran-2-carboxylic acidC₈H₈O₅184.15
2090174-42-6Methyl 4-bromo-1H-indazole-7-carboxylateC₉H₇BrN₂O₂255.07
2090184-62-45-Methyl-1,2-oxazol-4-olC₄H₅NO₂99.09
20902-45-8D-Penicillamine disulfideC₁₀H₂₀N₂O₄S₂296.41
20902-53-8L-Lysine, 1,2-dithiolane-3-pentanoate (1:1)C₁₄H₂₈N₂O₄S₂352.52
2090219-08-0(3S)-3-Ethyl-1,4-diazepan-2-oneC₇H₁₄N₂O142.20
2090236-99-8tert-Butyl 6-(aminomethyl)-5-azaspiro[2.5]octane-5-carboxylateC₁₃H₂₄N₂O₂240.35
2090245-73-9tert-Butyl 4-(4-amino-6-chloro-1,3,5-triazin-2-yl)piperazine-1-carboxylateC₁₂H₁₉ClN₆O₂314.78
2090250-86-3Methyl 5-oxospiro[3.3]heptane-2-carboxylateC₉H₁₂O₃168.19
2090256-13-46-(Difluoromethyl)pyrimidine-4-carboxylic acidC₆H₄F₂N₂O₂174.11
2090263-00-44-Bromo-5-(difluoromethyl)thiazoleC₄H₂BrF₂NS214.03
2090266-19-46-Amino-7-bromo-2,3-dihydro-1lambda6-benzothiophene-1,1-dioneC₈H₈BrNO₂S262.13
2090269-77-38-Bromo-4-chloroquinoline-3-sulfonyl chlorideC₉H₄BrCl₂NO₂S341.01
2090270-00-9tert-Butyl N-(4-cyano-2-oxocyclopentyl)carbamateC₁₁H₁₆N₂O₃224.26
2090270-33-8(6R)-6-Methyl-4H,5H,6H,7H-pyrazolo(1,5-a)pyrazineC₇H₁₁N₃137.19
2090283-00-22-Bromo-3-(bromomethyl)-4-fluoro-1-(trifluoromethyl)benzeneC₈H₄Br₂F₄335.92
2090290-84-76-(4-(((9H-Fluoren-9-yl)methoxy)carbonyl)piperazin-1-yl)pyridazine-3-carboxylic acidC₂₄H₂₂N₄O₄430.46
2090303-92-52,3,4-Trifluoro-5-sulfamoylbenzoic acidC₇H₄F₃NO₄S255.17
2090315-40-35-Fluoro-7-iodo-1H-indazoleC₇H₄FIN₂262.02
2090320-29-71-Sulfamoylimidazo[1,5-a]pyridine-3-carboxylic acidC₈H₇N₃O₄S241.23
2090320-37-75-Azaspiro(2.5)octan-7-olC₇H₁₃NO127.19
2090324-07-34-Chloro-1-hydroxy-1H,3H-furo[3,4-c]pyridin-3-oneC₇H₄ClNO₃185.57
2090334-26-03-Oxocyclobutane-1-sulfonyl chlorideC₄H₅ClO₃S168.60
2090335-43-4tert-Butyl 3-amino-2,2-dimethylazetidine-1-carboxylateC₁₀H₂₀N₂O₂200.28
2090343-49-84-Amino-6-chloropyrimidine-2-carbonitrileC₅H₃ClN₄154.56
2090368-34-4Pyrazine-2-sulfonyl fluorideC₄H₃FN₂O₂S162.15
2090368-76-45-Aminopyridine-2-sulfonyl fluorideC₅H₅FN₂O₂S176.17
2090379-45-4Ethyl 2-amino-4-bromo-1H-imidazole-5-carboxylateC₆H₈BrN₃O₂234.05
20904-57-8N,N-Dimethyl-3-phenoxypropylamineC₁₁H₁₇NO179.26
2090400-69-26-(Cyclopropylmethyl)pyrimidin-4-amineC₈H₁₁N₃149.20
2090412-82-9Methyl 2-bromo-5-methylfuran-3-carboxylateC₇H₇BrO₃219.03
2090413-82-2Ethyl 4-bromo-5-methyl-1,3-thiazole-2-carboxylateC₇H₈BrNO₂S250.12
2090416-84-38-Fluoroquinoline-3-sulfonyl chlorideC₉H₅ClFNO₂S245.66
2090417-89-16-((tert-Butoxy)carbonyl)-5H,6H,7H-pyrrolo(3,4-b)pyridine-2-carboxylic acidC₁₃H₁₆N₂O₄264.28
2090418-34-94-Chloro-6-(cyclopropylmethyl)pyrimidineC₈H₉ClN₂168.63
2090420-97-4Methyl 7-bromotetralin-2-carboxylateC₁₂H₁₃BrO₂269.14
2090442-83-2Methyl 2-amino-4-(oxolan-2-yl)-1,3-thiazole-5-carboxylateC₉H₁₂N₂O₃S228.27
2090446-25-44-Nitropyridine-2-sulfonyl fluorideC₅H₃FN₂O₄S206.15
2090447-40-62-Bromo-3,4-dimethylbenzonitrileC₉H₈BrN210.07
2090447-60-0{5H,6H,7H-Pyrrolo[1,2-a]imidazol-7-yl}methanolC₇H₁₀N₂O138.17
2090456-55-4Methyl 5-amino-4-bromo-1-benzothiophene-2-carboxylateC₁₀H₈BrNO₂S286.15
2090464-60-92-Oxospiro[3.4]octane-6-carboxylic acidC₉H₁₂O₃168.19
2090477-79-34-Bromo-3-(chloromethyl)-1,5-dimethyl-1H-pyrazoleC₆H₈BrClN₂223.50
2090478-43-46-Bromo-3-fluoro-2-(trifluoromethoxy)benzoic acidC₈H₃BrF₄O₃303.00
2090481-18-63-(Difluoromethyl)bicyclo(1.1.1)pentane-1-carboxylic acidC₇H₈F₂O₂162.13
2090482-29-25-Bromo-2-chloro-4-methoxyanilineC₇H₇BrClNO236.50
2090498-07-84-Bromo-5-iodo-2-nitroanilineC₆H₄BrIN₂O₂342.92
20905-74-2CyaninC₂₇H₃₁O₁₆+611.53
2090500-83-5Methyl 2-formyl-3-methyl-1-benzothiophene-5-carboxylateC₁₂H₁₀O₃S234.28
209051-29-6(1E,4E)-1,5-Bis(3,4,5-trimethoxyphenyl)penta-1,4-dien-3-oneC₂₃H₂₆O₇414.45
2090512-31-31-Bromo-4-(bromomethyl)-5-fluoro-2-methylbenzeneC₈H₇Br₂F281.95
2090531-69-2Methyl 1-aminoisoquinoline-4-carboxylateC₁₁H₁₀N₂O₂202.21
2090552-55-78-Bromo-3-nitroquinolin-4-olC₉H₅BrN₂O₃269.05
2090556-05-91-Bromo-5-(bromomethyl)-2-fluoro-4-methylbenzeneC₈H₇Br₂F281.95
2090559-66-1{2-Oxaspiro[4.5]decan-3-yl}methanesulfonyl chlorideC₁₀H₁₇ClO₃S252.76
2090571-85-83-(Chloromethyl)benzene-1-sulfonyl fluorideC₇H₆ClFO₂S208.64
2090576-25-16-Azaspiro[3.4]octane-2-carbonitrileC₈H₁₂N₂136.20
2090582-35-5Methyl 1-bromoindolizine-2-carboxylateC₁₀H₈BrNO₂254.08
2090582-65-1Ethyl 5-bromo-1,2-oxazole-4-carboxylateC₆H₆BrNO₃220.02
2090591-16-3Methyl 4-bromo-5-methylthiazole-2-carboxylateC₆H₆BrNO₂S236.09
2090595-55-2Methyl 7-bromoquinazoline-2-carboxylateC₁₀H₇BrN₂O₂267.08
2090599-22-52-Amino-5-cyclopentylpyridine-3-carbonitrileC₁₁H₁₃N₃187.25
2090614-47-23-Cyclobutyl-1H-pyrazole-4-carbaldehydeC₈H₁₀N₂O150.18
2090619-74-03-Iodo-6-methyl-5H,6H,7H-pyrazolo[3,2-b][1,3]oxazineC₇H₉IN₂O264.07
2090624-25-02,2-Difluoro-1-(1H-1,2,4-triazol-3-yl)ethan-1-oneC₄H₃F₂N₃O147.08
209064-25-5Phenethylamine sulfateC₈H₁₃NO₄S219.26
2090648-14-73-Bromo-1-(propan-2-yl)-1H-pyrazole-5-carboxylic acidC₇H₉BrN₂O₂233.06
2090652-49-45-(Trifluoromethyl)oxolan-3-oneC₅H₅F₃O₂154.09
2090657-03-5Methyl 5-Bromochromane-8-carboxylateC₁₁H₁₁BrO₃271.11
2090657-50-23-Bromo-5-(difluoromethyl)isoxazoleC₄H₂BrF₂NO197.97
2090670-31-6Methyl 4-aminoquinoline-6-carboxylateC₁₁H₁₀N₂O₂202.21
2090692-68-33-(3-Oxocyclobutyl)prop-2-ynoic acidC₇H₆O₃138.12
2090710-04-48-Bromo-N4-methylquinoline-3,4-diamineC₁₀H₁₀BrN₃252.12
2090710-30-62-Bromo-5-methyl-1,3-thiazole-4-sulfonyl chlorideC₄H₃BrClNO₂S₂276.56
2090711-35-42-(6-Oxaspiro(3.5)nonan-7-yl)acetic acidC₁₀H₁₆O₃184.24
2090711-56-97-(Bromomethyl)-6-oxaspiro(3.5)nonaneC₉H₁₅BrO219.12
2090721-99-4Methyl 5-bromo-2,3-dioxo-2,3-dihydro-1H-indole-7-carboxylateC₁₀H₆BrNO₄284.06
2090728-35-91-((2R)-Oxetan-2-yl)methanamineC₄H₉NO87.12
2090733-07-41-(Trifluoromethyl)-1H-pyrazole-5-carboxylic acidC₅H₃F₃N₂O₂180.09
2090734-62-4tert-Butyl 8-oxo-6-azaspiro(3.5)nonane-6-carboxylateC₁₃H₂₁NO₃239.31
2090743-43-25-Bromo-3-chloro-7H-pyrrolo(2,3-c)pyridazineC₆H₃BrClN₃232.47
2090755-79-4Methyl 1,2,3,4-tetrahydro-1,7-naphthyridine-6-carboxylateC₁₀H₁₂N₂O₂192.22
2090774-49-3Methyl 3-formyl-2-methylpyrazolo[1,5-a]pyrimidine-6-carboxylateC₁₀H₉N₃O₃219.20
2090777-90-3Benzyl 2,2-dimethyl-3-oxoazetidine-1-carboxylateC₁₃H₁₅NO₃233.27
2090778-00-8[(2S)-Oxetan-2-yl]methanolC₄H₈O₂88.11
2090789-78-71-(4-Bromo-2-ethoxy-6-fluorophenyl)ethan-1-oneC₁₀H₁₀BrFO₂261.09

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