CAS number index

CAS numbers starting with 21, page 56

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

Showing 5,501 to 5,600 of 8,045 chemicals

CAS numberChemical nameFormulaMol. weight

2167953-25-34-Amino-1-methyl-3,4-dihydro-1H-2lambda6,1-benzothiazine-2,2-dioneC₉H₁₂N₂O₂S212.27
2167956-38-75-Iodo-1,2-thiazole-3-carboxylic acidC₄H₂INO₂S255.04
2167963-64-43-Benzyl-3,7-diazatricyclo[3.3.3.0,1,5]undecaneC₁₆H₂₂N₂242.37
2167966-83-66-Amino-3-bromo-4-methylpyridin-2-olC₆H₇BrN₂O203.04
2167972-13-41-Cyclopropyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxylic acidC₈H₇F₃N₂O₂220.15
2167972-33-82,2-Difluorocyclopentan-1-oneC₅H₆F₂O120.10
2167991-21-94-(3-Chlorophenyl)-2-oxabicyclo[2.1.1]hexane-5-carboxylic acidC₁₂H₁₁ClO₃238.67
2167994-08-1Methyl 4,4-difluoro-5-sulfopentanoateC₆H₉ClF₂O₄S250.65
2168-06-13,3,3-Tris(4-chlorophenyl)propanoic acidC₂₁H₁₅Cl₃O₂405.71
2168-13-02-((Dimethylamino)methyl)pyridin-3-olC₈H₁₂N₂O152.20
2168-14-12-((Diethylamino)methyl)-3-pyridinolC₁₀H₁₆N₂O180.25
2168-16-32-(1-Piperidinylmethyl)-3-pyridinolC₁₁H₁₆N₂O192.26
2168-17-42,6-Bis((dimethylamino)methyl)-3-pyridinolC₁₁H₁₉N₃O209.29
2168-61-83,4-Dihydroxy-9,10-secoandrosta-1(10),2,4-triene-9,17-dioneC₁₉H₂₄O₄316.40
2168-68-5MorzidC₈H₁₆N₃OPS233.28
2168-75-4Ethyl diatrizoateC₁₃H₁₃I₃N₂O₄641.97
2168-84-5MethyldithioacetateC₃H₆S₂106.22
2168-93-6Dibutyl sulfoxideC₈H₁₈OS162.30
2168-98-1(Butane-1-sulfinylmethyl)-benzeneC₁₁H₁₆OS196.31
2168-99-2Benzene, [(hexylsulfinyl)methyl]-C₁₃H₂₀OS224.37
21680-48-82,4-Dioxo-8-(trifluoromethyl)-3-azaspiro[5.5]undecane-1,5-dicarbonitrileC₁₃H₁₂F₃N₃O₂299.25
2168018-78-63,3-Difluoro-1-(methoxycarbonyl)cyclobutane-1-carboxylic acidC₇H₈F₂O₄194.13
2168020-98-01-Cyclopropyl-1H-pyrazole-5-sulfonyl chlorideC₆H₇ClN₂O₂S206.65
2168025-77-0tert-Butyl N-(3-hydroxy-1-methylcyclobutyl)carbamateC₁₀H₁₉NO₃201.27
2168044-00-41-Methyl-5-(oxiran-2-yl)-1H-pyrazoleC₆H₈N₂O124.14
2168053-99-24-Bromo-7-chloro-6-fluoroquinolineC₉H₄BrClFN260.49
2168062-45-91-Imino-1lambda6,4-thiazepan-1-oneC₅H₁₂N₂OS148.23
2168062-80-24-Methyl-2-oxabicyclo[2.1.1]hexane-1-carboxylic acidC₇H₁₀O₃142.15
2168065-22-12-Ethyl-7-fluoroquinoline-3-carboxylic acidC₁₂H₁₀FNO₂219.22
2168066-53-18a-Methyl-hexahydro-1H-(1,3)oxazolo(3,4-a)piperazin-3-oneC₇H₁₂N₂O₂156.19
2168066-72-43-(((tert-Butoxy)carbonyl)amino)-2-(oxolan-3-yl)propanoic acidC₁₂H₂₁NO₅259.30
2168071-52-92-(6-(Difluoromethoxy)pyridin-2-yl)acetic acidC₈H₇F₂NO₃203.14
2168075-35-0tert-Butyl 7-oxo-5-azaspiro(3.4)octane-5-carboxylateC₁₂H₁₉NO₃225.29
2168077-30-1Methyl 7-bromo-5H-pyrrolo[2,3-b]pyrazine-2-carboxylateC₈H₆BrN₃O₂256.06
2168082-88-8Methyl 4-bromo-5-(bromomethyl)-2-fluorobenzoateC₉H₇Br₂FO₂325.96
2168089-42-52-(Difluoromethyl)pyrimidin-4-amineC₅H₅F₂N₃145.11
2168092-65-54-(4-Fluorophenyl)-2-oxabicyclo(2.1.1)hexane-5-carboxylic acidC₁₂H₁₁FO₃222.22
2168096-71-5Methyl 4-(1-formylcyclopropyl)benzoateC₁₂H₁₂O₃204.22
21681-87-82-(((4-Chlorophenyl)methyl)sulfanyl)acetonitrileC₉H₈ClNS197.69
2168105-37-9(4-Methyl-2-oxabicyclo(2.1.1)hexan-1-yl)methanolC₇H₁₂O₂128.17
2168123-06-43-Methyl-5H,6H,7H-pyrazolo[3,2-b][1,3]oxazine-2-carbaldehydeC₈H₁₀N₂O₂166.18
2168125-49-11-tert-Butyl 2-ethyl 3-oxoazetidine-1,2-dicarboxylateC₁₁H₁₇NO₅243.26
2168129-73-35H,6H,8H-Pyrano[3,4-b]pyridin-2-amineC₈H₁₀N₂O150.18
2168132-48-5Ethyl 4-(2-bromoacetyl)oxane-4-carboxylateC₁₀H₁₅BrO₄279.13
2168147-44-02-((1-(Bromomethyl)cyclopentyl)methyl)oxiraneC₉H₁₅BrO219.12
2168160-29-81-(2-Bromoethyl)-4-chloro-2-methoxybenzeneC₉H₁₀BrClO249.53
2168160-42-56-((tert-Butoxy)carbonyl)-6-azaspiro(3.4)octane-7-carboxylic acidC₁₃H₂₁NO₄255.31
2168163-41-33-(Chloromethyl)-1-methyl-1H-pyrazole-4-sulfonamideC₅H₈ClN₃O₂S209.66
2168190-37-02,6-Difluoro-3-(methoxycarbonyl)benzoic acidC₉H₆F₂O₄216.14
2168192-44-51-((tert-Butyldimethylsilyl)oxy)cyclobutane-1-carbaldehydeC₁₁H₂₂O₂Si214.38
2168194-58-7(3,3-Difluoro-1-(pyridin-4-yl)cyclobutyl)methanamineC₁₀H₁₂F₂N₂198.22
2168202-34-21-Fluorospiro(2.3)hexane-5-carboxylic acidC₇H₉FO₂144.15
2168206-78-63-Ethynylthietane 1,1-dioxideC₅H₆O₂S130.17
2168215-65-24-Ethynylbenzene-1-sulfonyl chlorideC₈H₅ClO₂S200.65
2168227-27-6tert-Butyl 2-(aminomethyl)oxolane-2-carboxylateC₁₀H₁₉NO₃201.27
2168231-86-3Methyl 1-(carboxy)piperidine-3-carboxylateC₈H₁₂ClNO₃205.64
2168236-42-6tert-Butyl N-(1-ethyl-5-formyl-1H-pyrazol-4-yl)carbamateC₁₁H₁₇N₃O₃239.28
2168236-44-8rac-tert-Butyl N-((1s,3s)-3-(methylamino)cyclobutyl)carbamateC₁₀H₂₀N₂O₂200.28
2168237-60-13,3-Difluoro-1,5-diazocan-2-oneC₆H₁₀F₂N₂O164.16
2168240-77-3tert-Butyl 3-ethynyl-3-fluoropyrrolidine-1-carboxylateC₁₁H₁₆FNO₂213.25
2168252-81-9tert-Butyl 4-amino-2-(trifluoromethyl)piperidine-1-carboxylateC₁₁H₁₉F₃N₂O₂268.28
2168252-85-3(3-Bromo-1,2-oxazol-5-yl)methanesulfonyl fluorideC₄H₃BrFNO₃S244.04
2168266-79-12-Methyl-4-oxo-4H,5H-pyrazolo(1,5-a)pyrazine-3-carboxylic acidC₈H₇N₃O₃193.16
2168280-83-74-Chloro-2-(3-methoxycyclobutyl)-6-methylpyrimidineC₁₀H₁₃ClN₂O212.68
2168286-15-33,3,4,4-Tetrafluorobutane-1-sulfonyl chlorideC₄H₅ClF₄O₂S228.59
21683-30-73,5-Dimethyl-1-phenyl-1H-pyrazol-4-amineC₁₁H₁₃N₃187.25
21683-61-42-Phenyl-5-(3-pyridinyl)-2,4-dihydro-3H-pyrazol-3-oneC₁₄H₁₁N₃O237.26
21683-86-33-(1-Benzofuran-2-yl)propanoic acidC₁₁H₁₀O₃190.20
2168325-05-9N-(2,2-Difluoroethyl)-2,2,2-trifluoro-N-(piperidin-3-yl)acetamideC₉H₁₃F₅N₂O260.21
2168327-85-12-{1-[(tert-Butoxy)carbonyl]-3,3-dimethylpyrrolidin-2-yl}acetic acidC₁₃H₂₃NO₄257.33
2168336-04-5tert-Butyl 5-hydroxy-2-azaspiro[3.5]nonane-2-carboxylateC₁₃H₂₃NO₃241.33
2168336-69-21-(Trifluoromethyl)-1H-1,3-benzodiazole-2-carbaldehydeC₉H₅F₃N₂O214.15
2168345-44-43-Bromo-1-(oxetan-3-yl)-1H-pyrazoleC₆H₇BrN₂O203.04
2168350-75-0(2-Benzylcyclopropyl)methanesulfonyl chlorideC₁₁H₁₃ClO₂S244.74
2168354-03-63-Cyclopropyl-4-hydroxy-5-methoxybenzaldehydeC₁₁H₁₂O₃192.21
2168368-03-21-Bromo-3-cyclopropoxy-2-fluorobenzeneC₉H₈BrFO231.06
2168378-43-42-Oxabicyclo(2.2.1)heptane-4-carboxylic acidC₇H₁₀O₃142.15
2168378-46-74-Amino-5-chlorothiophene-2-sulfonyl fluorideC₄H₃ClFNO₂S₂215.66
2168380-28-51-(4-Amino-2-fluorophenyl)-2,3-dihydro-1H-pyrazol-3-oneC₉H₈FN₃O193.18
2168380-50-34,5-Difluoro-2-methoxybenzene-1-thiolC₇H₆F₂OS176.19
2168380-52-5tert-Butyl 6,9-diazaspiro[3.6]decane-6-carboxylateC₁₃H₂₄N₂O₂240.35
2168382-80-55-(Bromomethyl)-3-methyl-1,2,4-thiadiazoleC₄H₅BrN₂S193.07
2168383-54-63-(Bromomethyl)-3-(difluoromethyl)oxetaneC₅H₇BrF₂O201.01
2168388-95-04-(Bromomethyl)pyrazolo(1,5-a)pyridineC₈H₇BrN₂211.06
2168391-80-63-(Chloromethyl)-1,3-dimethylazetidin-2-oneC₆H₁₀ClNO147.60
2168403-90-34-Cyclobutyl-5-(trifluoromethyl)-1H-pyrazole-3-carboxylic acidC₉H₉F₃N₂O₂234.18
2168413-62-3(S)-N1-Benzyl-N1-((trimethylsilyl)methyl)propane-1,2-diamineC₁₄H₂₆N₂Si250.46
2168415-77-64-Amino-2-(trifluoromethyl)benzene-1-sulfonyl fluorideC₇H₅F₄NO₂S243.18
2168418-36-64-Cyclopropyl-2-fluorobenzene-1-sulfonyl chlorideC₉H₈ClFO₂S234.68
2168418-55-9tert-Butyl N-{7-oxo-6-azaspiro[3.4]octan-2-yl}carbamateC₁₂H₂₀N₂O₃240.30
2168419-74-5Methyl 1-formyl-5,6,7,8-tetrahydroindolizine-3-carboxylateC₁₁H₁₃NO₃207.23
2168433-97-21-Hydroxy-2-(trifluoromethyl)cyclopropane-1-carboxylic acidC₅H₅F₃O₃170.09
2168435-13-85-Methyl-2-(thiophen-2-yl)piperidineC₁₀H₁₅NS181.30
2168441-30-15-Cyclopropyl-1,1-dioxo-2H-1lambda6,2,6-thiadiazine-3-carboxylic acidC₇H₈N₂O₄S216.22
2168444-43-5tert-Butyl N-{3-oxo-6-oxaspiro[3.4]octan-1-yl}carbamateC₁₂H₁₉NO₄241.29
2168445-09-65-(Iodomethyl)-6-azaspiro[3.4]octan-7-oneC₈H₁₂INO265.09
2168446-29-37-Ethylquinoline-8-sulfonyl chlorideC₁₁H₁₀ClNO₂S255.73
2168451-24-71-(2-Chloroethyl)-1-(trifluoromethyl)cyclobutaneC₇H₁₀ClF₃186.60
2168460-25-92-(Spiro(3.3)heptan-2-yl)ethan-1-amineC₉H₁₇N139.24
2168486-42-6tert-Butyl N-(5,5-difluoroazepan-4-yl)carbamateC₁₁H₂₀F₂N₂O₂250.29

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