CAS number index

CAS numbers starting with 21, page 58

8,045 chemicals have a CAS number that starts with 21. They are listed in CAS order.

Showing 5,701 to 5,800 of 8,045 chemicals

CAS numberChemical nameFormulaMol. weight

2169020-28-2tert-Butyl 4-formyl-2,2-dimethylpiperidine-1-carboxylateC₁₃H₂₃NO₃241.33
2169037-12-9tert-Butyl 10-oxo-2,5,9-triazaspiro[3.6]decane-2-carboxylateC₁₂H₂₁N₃O₃255.32
2169046-21-12-Bromo-5-(3-fluorobenzyl)thiazoleC₁₀H₇BrFNS272.14
2169047-47-43-Bromo-5-(difluoromethyl)benzoic acidC₈H₅BrF₂O₂251.03
2169056-70-4tert-Butyl 6-formyl-5-azaspiro[2.5]octane-5-carboxylateC₁₃H₂₁NO₃239.31
2169064-79-1Ethyl 2-(6-chloro-5-methylpyridin-3-yl)-2-oxoacetateC₁₀H₁₀ClNO₃227.65
2169065-69-2{1-[2-(Trifluoromethoxy)phenyl]cyclopropyl}methanamineC₁₁H₁₂F₃NO231.22
2169089-60-34-Methoxy-5-methyl-1,3-thiazole-2-carboxylic acidC₆H₇NO₃S173.19
2169090-39-3(5,8-Dioxaspiro(3.5)nonan-6-yl)methanolC₈H₁₄O₃158.20
21691-50-9L-Alanine 1,1-dimethylethyl esterC₇H₁₅NO₂145.20
21691-53-2tert-Butyl (2S)-2-amino-4-methylpentanoateC₁₀H₂₁NO₂187.28
2169104-03-2(3,3-Dimethyloxan-2-yl)methanesulfonyl chlorideC₈H₁₅ClO₃S226.72
2169110-11-46-Bromopyridazine-3-carbaldehydeC₅H₃BrN₂O187.00
2169112-73-41-(Trifluoromethyl)-2-oxa-5-azabicyclo[2.2.1]heptaneC₆H₈F₃NO167.13
2169117-28-44-Bromo-1-(2-methoxyethyl)-1H-1,2,3-triazoleC₅H₈BrN₃O206.04
2169117-41-12-Methyl-2-(2,2,2-trifluoroethoxy)propane-1-sulfonyl chlorideC₆H₁₀ClF₃O₃S254.66
2169118-10-7(2-tert-Butyloxolan-2-yl)methanamineC₉H₁₉NO157.26
2169120-22-1tert-Butyl N-{6-oxospiro[2.3]hexan-4-yl}carbamateC₁₁H₁₇NO₃211.26
2169126-19-4tert-Butyl 6-(aminomethyl)-7-oxa-4-azaspiro[2.5]octane-4-carboxylateC₁₂H₂₂N₂O₃242.32
2169128-34-92,3-Dihydro-1H-indole-5-sulfonyl fluorideC₈H₈FNO₂S201.22
2169130-85-01-(1-Methanesulfonylcyclopropyl)ethan-1-oneC₆H₁₀O₃S162.21
2169132-61-84-Chloro-1H-pyrazolo[3,4-b]pyridine-3-carboxylic acidC₇H₄ClN₃O₂197.58
2169135-47-95-Bromo-6-chloro-4-methylpyridine-3-sulfonyl chlorideC₆H₄BrCl₂NO₂S304.98
2169140-89-8Rac-(1r,3r)-3-(bromomethyl)cyclobutan-1-olC₅H₉BrO165.03
2169143-52-44-Bromo-2,5-dimethylpyrimidineC₆H₇BrN₂187.04
2169143-76-22-Oxa-5-azaspiro(3.4)octan-6-oneC₆H₉NO₂127.14
2169148-03-0[(4,4-Dimethyloxolan-2-yl)methyl](methyl)amineC₈H₁₇NO143.23
2169150-20-12-Formyl-4-(trifluoromethyl)-1H-imidazole-5-carboxylic acidC₆H₃F₃N₂O₃208.09
2169150-63-22-(2-((tert-Butoxy)carbonyl)-2-azabicyclo(2.1.1)hexan-1-yl)acetic acidC₁₂H₁₉NO₄241.29
2169151-02-22-((2-Cyclopropylphenyl)methyl)piperidineC₁₅H₂₁N215.34
2169160-87-42-(5-Bromo-4-chloro-2-iodophenyl)acetonitrileC₈H₄BrClIN356.39
2169164-71-8tert-Butyl 2-[(fluorosulfonyl)methyl]azetidine-1-carboxylateC₉H₁₆FNO₄S253.29
2169167-41-17,7-Difluoro-2-azaspiro(3.5)nonaneC₈H₁₃F₂N161.19
2169168-08-3Rac-(1r,4r)-1-(((tert-butoxy)carbonyl)amino)-4-methylcyclohexane-1-carboxylic acidC₁₃H₂₃NO₄257.33
2169173-02-6tert-Butyl 4-ethynyl-3,3-dimethylpyrrolidine-1-carboxylateC₁₃H₂₁NO₂223.32
2169175-25-94-Ethynyl-1-methyl-1H-pyrazol-5-amineC₆H₇N₃121.14
2169177-19-7tert-Butyl N-{6,6-difluoro-3-oxospiro[3.3]heptan-1-yl}carbamateC₁₂H₁₇F₂NO₃261.27
2169180-78-16-Cyano-1H-indole-3-sulfonyl chlorideC₉H₅ClN₂O₂S240.67
2169182-21-0tert-Butyl 5-amino-2-azaspiro[3.4]octane-2-carboxylateC₁₂H₂₂N₂O₂226.32
2169198-34-7tert-Butyl N-[4-(chlorosulfonyl)-2,2-dimethylbutyl]carbamateC₁₁H₂₂ClNO₄S299.82
2169201-76-5tert-Butyl N-[1-(3-aminopropyl)pyrrolidin-3-yl]carbamateC₁₂H₂₅N₃O₂243.35
2169203-94-34-(Chloromethyl)-1-methyl-5-(trifluoromethyl)-1H-1,2,3-triazoleC₅H₅ClF₃N₃199.56
2169204-81-13-{[(tert-Butoxy)carbonyl](2,2,2-trifluoroethyl)amino}propanoic acidC₁₀H₁₆F₃NO₄271.24
2169207-92-33-Chloro-6-fluoroisoquinoline-5-sulfonyl chlorideC₉H₄Cl₂FNO₂S280.11
2169214-03-1Methyl 3-bromo-5-(difluoromethyl)benzoateC₉H₇BrF₂O₂265.05
2169216-81-11,1-Dioxo-2H,3H,4H-1lambda6-pyrazolo[1,5-e][1,2,5]thiadiazine-7-carboxylic acidC₆H₇N₃O₄S217.21
2169221-26-34-Ethyl-6-fluoro-1H-indole-2-carboxylic acidC₁₁H₁₀FNO₂207.20
2169221-53-6tert-Butyl 5-amino-2-azabicyclo[4.2.0]octane-2-carboxylateC₁₂H₂₂N₂O₂226.32
2169228-13-93-Formyl-5,6,7,8-tetrahydroindolizine-1-carboxylic acidC₁₀H₁₁NO₃193.20
2169228-15-13-Fluoro-2-methyloxolane-3-carboxylic acidC₆H₉FO₃148.13
2169230-19-510,10-Difluoro-2-oxa-7-azaspiro[4.5]decaneC₈H₁₃F₂NO177.19
2169238-42-8tert-Butyl 2-amino-3-bromo-4H,5H,6H,7H-pyrazolo(1,5-a)pyrazine-5-carboxylateC₁₁H₁₇BrN₄O₂317.19
2169238-82-62-Methanesulfonylthiophene-3-carbaldehydeC₆H₆O₃S₂190.25
2169261-59-84-(Benzyloxy)thiophene-3-carbaldehydeC₁₂H₁₀O₂S218.28
2169266-69-5Thalidomide-O-C6-COOHC₂₀H₂₂N₂O₇402.40
2169305-03-5tert-Butyl 3-oxomorpholine-2-carboxylateC₉H₁₅NO₄201.22
2169309-12-8tert-Butyl 5-amino-2-azaspiro[3.5]nonane-2-carboxylateC₁₃H₂₄N₂O₂240.35
2169347-80-03,3-Difluoro-6-(iodomethyl)piperidin-2-oneC₆H₈F₂INO275.04
2169349-38-42-(Methoxycarbonyl)cubane-1-carboxylic acidC₁₁H₁₀O₄206.20
2169351-61-33-Nitrocyclobutane-1-carboxylic acidC₅H₇NO₄145.11
2169368-49-2tert-Butyl 3,3-dimethyl-octahydropyrrolo(3,4-b)pyrrole-5-carboxylateC₁₃H₂₄N₂O₂240.35
2169386-05-21-Bromo-3-(methoxymethyl)-2-methylbenzeneC₉H₁₁BrO215.09
2169386-52-91-(4-tert-Butyl-1H-pyrrol-2-yl)-2,2,2-trichloroethan-1-oneC₁₀H₁₂Cl₃NO268.57
2169408-36-85-Bromo-1-[(tert-butoxy)carbonyl]-1,2,3,4-tetrahydropyridine-2-carboxylic acidC₁₁H₁₆BrNO₄306.16
2169411-86-17-Azidoheptane-1-sulfonyl chlorideC₇H₁₄ClN₃O₂S239.73
2169418-89-54-Ethyl-1-isopropyl-1H-pyrazol-5-amineC₈H₁₅N₃153.23
2169427-43-23,4-Dichloro-5-formylbenzoic acidC₈H₄Cl₂O₃219.02
2169429-20-12-Methoxy-3-phenoxypropanoic acidC₁₀H₁₂O₄196.20
2169440-61-14-(Bromomethyl)-1-(trifluoromethyl)-1H-pyrazoleC₅H₄BrF₃N₂229.00
2169454-64-02-(4-Bromophenyl)-2-(difluoromethyl)oxiraneC₉H₇BrF₂O249.05
2169461-43-0Methyl 2-(2-(tert-butoxy)-4-oxocyclobutyl)acetateC₁₁H₁₈O₄214.26
2169480-55-93-(2,2,3,3-Tetrafluorocyclobutyl)benzaldehydeC₁₁H₈F₄O232.18
2169486-60-42-Bromo-3-(difluoromethoxy)-6-nitrobenzaldehydeC₈H₄BrF₂NO₄296.02
2169487-42-58-Hydroxy-6-azaspiro(3.5)nonan-5-oneC₈H₁₃NO₂155.20
2169497-71-4tert-Butyl 7-(iodomethyl)-8-oxa-5-azaspiro[3.5]nonane-5-carboxylateC₁₃H₂₂INO₃367.23
21695-33-04-Carboxy-N-(carboxymethyl)phthalimideC₁₁H₇NO₆249.18
21695-35-2Methyl 1,3-dihydro-5-(methoxycarbonyl)-1,3-dioxo-2H-isoindole-2-acetateC₁₃H₁₁NO₆277.23
2169505-33-1tert-Butyl 3-(hydroxymethyl)cyclobutane-1-carboxylateC₁₀H₁₈O₃186.25
2169505-85-37-Formyl-2,3-dihydro-1H-pyrrolizine-5-carboxylic acidC₉H₉NO₃179.18
2169509-42-41-Butyl-3-(3-hydroxypropyl)-1-propylureaC₁₁H₂₄N₂O₂216.32
2169527-25-53-[(tert-Butyldimethylsilyl)oxy]oxetane-3-carbaldehydeC₁₀H₂₀O₃Si216.35
2169533-61-17,7,9,9-Tetramethylspiro[4.5]decan-1-oneC₁₄H₂₄O208.34
2169533-83-74-(((tert-Butoxycarbonyl)amino)methyl)-5-chlorothiophene-2-carboxylic acidC₁₁H₁₄ClNO₄S291.76
216955-61-22-{1-[(tert-Butoxy)carbonyl]piperidin-4-yl}-4-methyl-1,3-thiazole-5-carboxylic acidC₁₅H₂₂N₂O₄S326.42
216955-75-86-(1H-Imidazol-1-yl)pyridine-3-carboxylic acidC₉H₇N₃O₂189.17
216955-76-9(1E)-2-(3-Chlorophenyl)ethenesulfonyl chlorideC₈H₆Cl₂O₂S237.11
2169556-70-92-Hydroxy-6-azaspiro[3.4]octan-7-oneC₇H₁₁NO₂141.17
216956-20-65-(3'-Hydroxybenzyl)hydantoinC₁₀H₁₀N₂O₃206.20
2169582-80-11-Methyl-2-oxabicyclo[2.1.1]hexane-4-carboxylic acidC₇H₁₀O₃142.15
216959-34-1Ethyl N-Boc-oxamidateC₉H₁₅NO₅217.22
216959-87-44-(1H-1,2,3-Triazol-1-yl)benzoic acidC₉H₇N₃O₂189.17
216959-92-14-Methyl-2-(2-pyrazinyl)thiazole-5-carboxylic acidC₉H₇N₃O₂S221.24
216959-94-34-(2-Amino-1,3-thiazol-4-yl)benzoic acidC₁₀H₈N₂O₂S220.25
21696-20-84-Chloro-1-N,3-N-bis[4-(4,5-dihydro-1H-imidazol-2-yl)phenyl]benzene-1,3-dicarboxamideC₂₆H₂₃ClN₆O₂486.96
21696-26-42-Amino-N(1),N(3)-bis(4-(4,5-dihydro-1H-imidazol-2-yl)phenyl)isophthalamideC₂₆H₂₅N₇O₂467.53
2169602-18-8{2-Oxa-5-azabicyclo[2.2.1]heptan-4-yl}methanolC₆H₁₁NO₂129.16
2169605-84-74-(1H-1,2,3-Triazol-1-yl)oxane-4-carboxylic acidC₈H₁₁N₃O₃197.19
2169607-59-23-Cyclopropylbicyclo[1.1.1]pentane-1-carboxylic acidC₉H₁₂O₂152.19
2169608-39-1(3-tert-Butylcyclobutyl)methanesulfonyl chlorideC₉H₁₇ClO₂S224.75
216961-61-4Decane-1,10-diamine, N-BOC protectedC₁₅H₃₂N₂O₂272.43

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