CAS number index

CAS numbers starting with 21, page 64

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

Showing 6,301 to 6,400 of 8,045 chemicals

CAS numberChemical nameFormulaMol. weight

2172493-30-81Lambda6-thia-2-azaspiro[4.4]nonane-1,1-dioneC₇H₁₃NO₂S175.25
2172493-89-7Sulfuric acid, tert-butyl N-((1-carbamimidoylpiperidin-4-yl)methyl)carbamateC₁₂H₂₆N₄O₆S354.43
2172494-14-16-Bromo-2-chloro-3H-imidazo(4,5-b)pyridine hydrochlorideC₆H₄BrCl₂N₃268.93
2172494-51-6N-CyclopropylmethoxycarbohydrazideC₅H₁₀N₂O₂130.15
2172494-66-35-Bromo-1H-indazole-3-sulfonamideC₇H₆BrN₃O₂S276.12
2172495-09-73,3-Dimethyl-1,4-oxazepan-5-oneC₇H₁₃NO₂143.19
2172495-51-9Propranolol EP impurity B hydrochlorideC₂₉H₃₄ClNO₄496.05
2172496-23-84-(1H-1,2,3-Triazol-4-yl)piperidin-4-ol dihydrochlorideC₇H₁₄Cl₂N₄O241.12
2172496-26-1(2-Methylthiophen-3-yl)methanamine hydrochlorideC₆H₁₀ClNS163.67
2172496-33-01,3-Dimethylcyclobutan-1-amine hydrochlorideC₆H₁₄ClN135.64
2172496-60-31-Methyl-1H,4H,6H,7H-pyrano[3,4-d]imidazol-2-amine hydrochlorideC₇H₁₂ClN₃O189.65
2172497-85-53-tert-Butyl-5-(chloromethyl)pyridine hydrochlorideC₁₀H₁₅Cl₂N220.14
2172498-88-1(2-Phenyl-1,4-dioxan-2-yl)methanamine hydrochlorideC₁₁H₁₆ClNO₂229.71
2172499-32-8(5-(Difluoromethyl)-1-methyl-1H-1,2,3-triazol-4-yl)methanamine hydrochlorideC₅H₉ClF₂N₄198.60
2172499-68-03,3-Difluoro-2-(1H-pyrazol-1-yl)propan-1-amine dihydrochlorideC₆H₁₁Cl₂F₂N₃234.08
21725-46-2CyanazineC₉H₁₃ClN₆240.70
21725-69-93-Hydroxy-1,2-benzisoxazoleC₇H₅NO₂135.12
2172500-14-87-Fluoro-2,3,4,5-tetrahydro-1,4-benzoxazepine hydrochlorideC₉H₁₁ClFNO203.64
2172500-53-53-[({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)methyl]-1-benzothiophene-2-carboxylic acidC₂₅H₁₉NO₄S429.50
2172503-18-1N,N,3-trimethylpyrrolidin-3-amine dihydrochlorideC₇H₁₈Cl₂N₂201.14
2172503-20-55,6,7,8-Tetrahydroquinoline-2-carboxylic acid hydrochlorideC₁₀H₁₂ClNO₂213.66
2172503-23-8Acetic acid, tert-butyl N-(2-carbamimidoylethyl)carbamateC₁₀H₂₁N₃O₄247.29
2172503-46-5Lithium 2,2-difluoro-2-(1-methyl-1H-imidazol-2-yl)acetateC₆H₅F₂LiN₂O₂182.06
2172503-49-8Sodium 2-{1-[(tert-butoxy)carbonyl]-4-hydroxypiperidin-4-yl}-2,2-difluoroacetateC₁₂H₁₈F₂NNaO₅317.26
2172503-56-74-Methyl-2-(pyridin-3-yl)-1H-imidazole-5-carboxylic acid dihydrochlorideC₁₀H₁₁Cl₂N₃O₂276.12
2172503-62-54,5-Dihydro-3H-spiro[1,4-benzoxazepine-2,3'-oxolane]C₁₂H₁₅NO₂205.26
2172503-67-0Benzyl 6-formyl-2,3-dihydro-1H-indole-1-carboxylateC₁₇H₁₅NO₃281.31
2172503-69-2Methyl 1-amino-4-methyl-1,2,3,4-tetrahydronaphthalene-1-carboxylate hydrochlorideC₁₃H₁₈ClNO₂255.75
2172503-71-62-Phenyloxane-2-carboxylic acidC₁₂H₁₄O₃206.24
2172503-72-73-(4-Aminopiperidin-1-yl)-1H-1,2,4-triazol-5-ol dihydrochlorideC₇H₁₅Cl₂N₅O256.14
2172506-46-43-(Amino(cyclopropyl)methyl)oxetan-3-olC₇H₁₃NO₂143.19
2172508-70-03,4-Dihydrospiro[1-benzopyran-2,3'-oxolane]-4-amine hydrochlorideC₁₂H₁₆ClNO₂241.72
2172509-00-91-(4-Fluorophenyl)ethane-1-sulfonyl fluorideC₈H₈F₂O₂S206.21
2172518-29-3tert-Butyl 5-amino-4,4-difluoroazepane-1-carboxylateC₁₁H₂₀F₂N₂O₂250.29
2172519-13-81-[(tert-Butoxy)carbonyl]-3-(2-hydroxypropan-2-yl)azetidine-3-carboxylic acidC₁₂H₂₁NO₅259.30
2172520-00-03-(Propan-2-yl)-1H-pyrazole hydrochlorideC₆H₁₁ClN₂146.62
2172520-05-51-Methyl-3-phenylpyrrolidine-3-carboxylic acid hydrochlorideC₁₂H₁₆ClNO₂241.72
2172525-78-7Sodium 2-{1-[(tert-butoxy)carbonyl]-3-hydroxypyrrolidin-3-yl}-2,2-difluoroacetateC₁₁H₁₆F₂NNaO₅303.24
2172527-68-13-Cyclobutylcyclobutane-1-sulfonyl chlorideC₈H₁₃ClO₂S208.71
2172528-27-55-(Chloromethyl)-N,N-dimethyl-1,3-thiazol-2-amine hydrochlorideC₆H₁₀Cl₂N₂S213.13
2172531-39-22-{1-[(4-Chlorophenyl)methyl]-1H-imidazol-4-yl}ethan-1-amine dihydrochlorideC₁₂H₁₆Cl₃N₃308.64
2172532-55-51-(3-Aminophenyl)-2,2-difluoroethan-1-one hydrochlorideC₈H₈ClF₂NO207.61
2172535-89-41,2,5,6,7,8-Hexahydro-2,7-naphthyridin-1-one hydrochlorideC₈H₁₁ClN₂O186.64
2172536-43-3Methyl 2-(4-(2-aminoethyl)-1H-1,2,3-triazol-1-yl)acetate hydrochlorideC₇H₁₃ClN₄O₂220.66
2172536-70-62-[(2,2-Difluoroethyl)({[(9H-fluoren-9-yl)methoxy]carbonyl})amino]acetic acidC₁₉H₁₇F₂NO₄361.34
2172537-48-12-(1-{[(9H-Fluoren-9-yl)methoxy]carbonyl}piperidin-4-yl)-1H-imidazole-4-carboxylic acidC₂₄H₂₃N₃O₄417.46
2172538-03-11-(1-((tert-Butoxy)carbonyl)-4-hydroxypiperidin-4-yl)cyclopropane-1-carboxylic acidC₁₄H₂₃NO₅285.34
2172538-15-52-(N'-Phenylcarbamimidamido)acetic acid hydrochlorideC₉H₁₂ClN₃O₂229.67
2172538-54-24-Chloro-3-iodo-2-methylpyrazolo[1,5-a]pyrazineC₇H₅ClIN₃293.50
2172541-00-12-Methyl-2-(1-methyl-1H-imidazol-2-yl)propanoic acid hydrochlorideC₈H₁₃ClN₂O₂204.66
2172541-10-34-(Methoxycarbonyl)-2-(trifluoromethyl)benzoic acidC₁₀H₇F₃O₄248.16
2172543-02-92-(1-Methyl-1,2,3,6-tetrahydropyridin-4-yl)acetic acid hydrochlorideC₈H₁₄ClNO₂191.66
2172543-20-1tert-Butyl 3-((methylamino)methyl)-4H,5H,6H,7H-pyrazolo(1,5-a)pyrazine-5-carboxylateC₁₃H₂₂N₄O₂266.35
2172546-40-4(2-Cyclopentylcyclopropyl)methanamine hydrochlorideC₉H₁₈ClN175.70
2172547-02-16-Oxo-5,6,7,8-tetrahydronaphthalene-2-sulfonyl chlorideC₁₀H₉ClO₃S244.70
2172547-06-5N1-(6-fluoropyridin-2-yl)ethane-1,2-diamine dihydrochlorideC₇H₁₂Cl₂FN₃228.10
2172547-31-6tert-Butyl N-{2-[4-(aminomethyl)phenyl]propan-2-yl}carbamateC₁₅H₂₄N₂O₂264.37
2172547-51-0tert-Butyl N-(5,5-dimethyl-1-oxohexan-3-yl)carbamateC₁₃H₂₅NO₃243.35
2172548-02-4Lithium(1+) [1,2,4]triazolo[1,5-a]pyridine-2-carboxylateC₇H₄LiN₃O₂169.07
2172548-07-93,5-Dimethylpyridine-4-carboxylic acid hydrochlorideC₈H₁₀ClNO₂187.63
2172548-13-7(1-(Azetidin-3-yl)-1H-1,2,3-triazol-4-yl)methanol dihydrochlorideC₆H₁₂Cl₂N₄O227.09
2172548-68-21-Bromo-3-(2,2-difluoro-1-methylcyclopropyl)benzeneC₁₀H₉BrF₂247.08
2172549-40-33,3-Difluoro-1-(methoxymethyl)cyclopentane-1-carbaldehydeC₈H₁₂F₂O₂178.18
2172549-99-21-(Oxan-2-yl)cyclopropane-1-carbaldehydeC₉H₁₄O₂154.21
2172553-68-13-((4-(((9H-Fluoren-9-yl)methoxy)carbonyl)piperazin-1-yl)sulfonyl)benzoic acidC₂₆H₂₄N₂O₆S492.55
2172554-04-82-Chloro-4-(chloromethyl)-1,3-thiazole-5-sulfonamideC₄H₄Cl₂N₂O₂S₂247.13
2172554-28-65-Bromopyrimidine-2-sulfonyl fluorideC₄H₂BrFN₂O₂S241.04
2172554-83-31-Oxa-9lambda6-thia-4-azaspiro(5.5)undecane-9,9-dione hydrochlorideC₈H₁₆ClNO₃S241.74
2172558-67-51-(2-Aminopropan-2-yl)cyclobutan-1-olC₇H₁₅NO129.20
2172559-10-1[5-(Methylsulfanyl)furan-2-yl]methanamine hydrochlorideC₆H₁₀ClNOS179.67
2172559-25-81-Amino-2-methylcyclopentane-1-carboxylic acid hydrochlorideC₇H₁₄ClNO₂179.65
2172559-48-55-(Trifluoromethyl)spiro(2.3)hexane-5-carboxylic acidC₈H₉F₃O₂194.15
2172559-62-3Lithium(1+) ion 2,6-dimethylbenzene-1-sulfinateC₈H₉LiO₂S176.17
2172559-69-03-(1,1-Difluoroethyl)-4-fluorobenzaldehydeC₉H₇F₃O188.15
2172559-83-8tert-Butyl N-{[3-(piperidin-4-yl)-1H-1,2,4-triazol-5-yl]methyl}carbamateC₁₃H₂₃N₅O₂281.36
2172559-98-51-(Difluoromethyl)-5-iodo-1H-imidazoleC₄H₃F₂IN₂243.98
2172560-71-15-(1-((tert-Butoxy)carbonyl)piperidin-4-yl)oxolane-2-carboxylic acidC₁₅H₂₅NO₅299.37
2172561-42-9(1-Ethyl-5-fluoro-1H-pyrazol-4-yl)methanamine dihydrochlorideC₆H₁₂Cl₂FN₃216.09
2172561-66-71-Methyl-1H-1,2,3-benzotriazole-7-carboxylic acid hydrochlorideC₈H₈ClN₃O₂213.62
2172561-73-6Azetidin-3-yl propanoate hydrochlorideC₆H₁₂ClNO₂165.62
2172561-78-1[2-(Trifluoromethyl)spiro[3.3]heptan-2-yl]methanamineC₉H₁₄F₃N193.21
2172561-79-2tert-Butyl 3-(2-aminopropan-2-yl)-3-hydroxyazetidine-1-carboxylateC₁₁H₂₂N₂O₃230.31
2172562-29-53-Amino-2-bromo-5-hydroxybenzoic acid hydrobromideC₇H₇Br₂NO₃312.94
2172562-66-0(2-Methanesulfonylthiophen-3-yl)methanamine hydrochlorideC₆H₁₀ClNO₂S₂227.74
2172563-13-06-(1-((((tert-Butoxy)carbonyl)amino)methyl)cyclobutyl)pyridine-3-carboxylic acidC₁₆H₂₂N₂O₄306.36
2172564-42-81-(Pyridin-2-yl)ethane-1-sulfonyl fluorideC₇H₈FNO₂S189.21
2172564-54-21-[(3-Chlorophenyl)methyl]-3-[4-(1H-pyrazol-4-yl)phenyl]imidazolidin-2-oneC₁₉H₁₇ClN₄O352.82
2172565-28-34-Imino-2,3-dihydro-1,4lambda6-benzoxathiin-4-oneC₈H₉NO₂S183.23
2172566-34-41-(2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)ethyl)piperidine-4-carboxylic acidC₂₃H₂₆N₂O₄394.47
2172571-15-02-(Prop-2-yn-1-yl)piperidine hydrochlorideC₈H₁₄ClN159.66
2172572-77-72-Bromo-5-(trifluoromethyl)-1H-imidazole hydrobromideC₄H₃Br₂F₃N₂295.88
2172572-90-45-Amino-2-(aminomethyl)phenol dihydrobromideC₇H₁₂Br₂N₂O299.99
2172573-19-0Thiophen-3-ylmethanesulfonyl fluorideC₅H₅FO₂S₂180.22
2172576-00-82-(4-Phenyl-1H-1,2,3-triazol-1-yl)ethan-1-amine dihydrochlorideC₁₀H₁₄Cl₂N₄261.16
2172576-07-57H,8H-Imidazo[1,5-a]pyrazin-8-one hydrochlorideC₆H₆ClN₃O171.59
2172577-23-82-Bromo-4H,5H,6H,7H,8H-furo[3,2-c]azepine hydrochlorideC₈H₁₁BrClNO252.54
2172577-83-02-(1-Methylcyclopropyl)aniline hydrochlorideC₁₀H₁₄ClN183.68
2172578-41-35-Oxa-2-azaspiro(3.4)octane-7-carboxylic acid hydrochlorideC₇H₁₂ClNO₃193.63
2172582-80-65-Hydrazinylpyridine-2-carboxylic acid dihydrochlorideC₆H₉Cl₂N₃O₂226.06
2172584-17-52-[4-(Propan-2-yl)-4H-1,2,4-triazol-3-yl]acetic acid hydrochlorideC₇H₁₂ClN₃O₂205.65

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