CAS number index

CAS numbers starting with 21, page 62

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

Showing 6,101 to 6,200 of 8,045 chemicals

CAS numberChemical nameFormulaMol. weight

2171992-33-74-(Difluoromethyl)-3-methylbenzene-1-sulfonylchlorideC₈H₇ClF₂O₂S240.66
2172-02-3Hafnium tert-butoxideC₁₆H₃₆HfO₄470.95
2172-33-0Dinaphtho(2,3-i:2',3'-i')benzo(1,2-a:4,5-a')dicarbazole-5,7,12,17,19,24(6H,18H)-hexoneC₄₂H₁₈N₂O₆646.61
2172-48-7Dimethyl 2,2-bis(4-chlorobenzyl)malonateC₁₉H₁₈Cl₂O₄381.25
2172-51-22,2,3-Tris(4-chlorophenyl)propiononitrileC₂₁H₁₄Cl₃N386.71
2172-91-05-Methyl-2-phenoxyanilineC₁₃H₁₃NO199.25
2172006-02-72-({[(9H-Fluoren-9-yl)methoxy]carbonyl}(2-methoxy-2-oxoethyl)amino)acetic acidC₂₀H₁₉NO₆369.37
2172006-39-0(2,4-Dimethylphenyl)methanesulfonyl fluorideC₉H₁₁FO₂S202.25
2172012-03-0Lithium(1+) hexahydro-1H-pyrrolo(2,1-c)(1,4)oxazine-8-carboxylateC₈H₁₂LiNO₃177.13
2172013-29-32-tert-Butyl 8-methyl 6-iodo-1H,2H,3H,4H-pyrrolo(1,2-a)pyrazine-2,8-dicarboxylateC₁₄H₁₉IN₂O₄406.22
2172017-90-03-(Methoxyamino)propan-1-ol hydrochlorideC₄H₁₂ClNO₂141.60
2172018-80-12-Fluoro-5-formylbenzene-1-sulfonylchlorideC₇H₄ClFO₃S222.62
2172018-86-7Sodium 2-oxo-octahydro-1H-indole-6-carboxylateC₉H₁₂NNaO₃205.19
2172019-13-3(5-Cyclopropyl-1,2-oxazol-4-yl)methanamine hydrochlorideC₇H₁₁ClN₂O174.63
2172019-17-7[2-(Trifluoromethyl)spiro[3.3]heptan-2-yl]methanesulfonyl chlorideC₉H₁₂ClF₃O₂S276.71
2172021-15-57-Methoxy-5-azaspiro(2.4)heptane hydrochlorideC₇H₁₄ClNO163.65
2172021-26-83-Amino-1-[2-(3,4-dichlorophenyl)ethyl]thioureaC₉H₁₁Cl₂N₃S264.18
2172022-37-41-Ethynyl-N,N-dimethylcyclopropane-1-sulfonamideC₇H₁₁NO₂S173.24
2172023-19-53H,4H,5H,5aH,6H,7H,8H,9H,9aH-imidazo(4,5-f)quinoline dihydrochlorideC₁₀H₁₇Cl₂N₃250.17
2172029-58-0(1-Methyl-1H-1,2,3-triazol-4-yl)methanesulfonyl fluorideC₄H₆FN₃O₂S179.18
2172030-13-43-Iodo-5-nitroaniline hydrochlorideC₆H₆ClIN₂O₂300.48
2172030-80-56-{[(9H-Fluoren-9-yl)methoxy]carbonyl}-2-oxo-1,2,5,6,7,8-hexahydro-1,6-naphthyridine-4-carboxylic acidC₂₄H₂₀N₂O₅416.43
2172031-64-82-Hydrazinylcycloheptan-1-ol dihydrochlorideC₇H₁₈Cl₂N₂O217.14
2172033-27-96-Oxaspiro[3.5]non-7-en-9-oneC₈H₁₀O₂138.17
2172033-34-8Methyl 9-bromo-2,3,4,5-tetrahydro-1,4-benzoxazepine-7-carboxylate hydrochlorideC₁₁H₁₃BrClNO₃322.59
2172035-52-62-(3-Bromo-4-fluorophenyl)-2-methyloxetaneC₁₀H₁₀BrFO245.09
2172036-33-6(6-Methyl-1,4-dioxan-2-yl)methanesulfonylchlorideC₆H₁₁ClO₄S214.67
2172037-86-22-{1-[(tert-Butoxy)carbonyl]-3-hydroxyazetidin-3-yl}-2-methylpropanoic acidC₁₂H₂₁NO₅259.30
2172038-10-52-(Difluoromethyl)-4-methoxybenzene-1-sulfonyl fluorideC₈H₇F₃O₃S240.20
2172038-42-34-Iodo-3,3-dimethylbutanoyl chlorideC₆H₁₀ClIO260.50
2172039-08-43-Phenyl-1lambda6-thiomorpholine-1,1-dione hydrochlorideC₁₀H₁₄ClNO₂S247.75
2172039-12-03,3-Difluoro-1-(methoxymethyl)cyclopentane-1-carboxylic acidC₈H₁₂F₂O₃194.18
2172040-31-07-Methylquinoline-8-carboxylic acid hydrochlorideC₁₁H₁₀ClNO₂223.66
2172050-31-4Methyl 2-methyl-5-sulfamoylthiophene-3-carboxylateC₇H₉NO₄S₂235.29
2172050-99-42-(4-Methyl-1H-pyrazol-1-yl)propanoic acid hydrochlorideC₇H₁₁ClN₂O₂190.63
2172051-04-43-[(tert-Butoxy)carbonyl]-4-fluorobenzoic acidC₁₂H₁₃FO₄240.23
2172051-51-13-Amino-2-[(1,3-dioxaindan-5-yl)methyl]propanoic acid hydrochlorideC₁₁H₁₄ClNO₄259.69
2172051-60-27-Phenyl-1,4-oxazepane hydrochlorideC₁₁H₁₆ClNO213.71
2172051-84-03-(3-Aminopropyl)-5,5-dimethylimidazolidine-2,4-dione hydrochlorideC₈H₁₆ClN₃O₂221.69
2172052-28-51-(Bromomethyl)-2-(trifluoromethyl)cyclopentaneC₇H₁₀BrF₃231.06
2172052-72-92-(4-Cyclopropyl-1H-1,2,3-triazol-1-yl)ethan-1-amine dihydrochlorideC₇H₁₄Cl₂N₄225.12
2172053-18-62-(2-Methylpropyl)azetidine hydrochlorideC₇H₁₆ClN149.66
2172053-56-23-(Trifluoromethyl)-5H,6H,7H,8H-imidazo(1,5-a)pyrazine-1-carboxylic acid hydrochlorideC₈H₉ClF₃N₃O₂271.63
2172058-90-94-(Cyclopropylmethyl)oxolan-3-olC₈H₁₄O₂142.20
2172060-42-13-(Bromomethyl)-7,7-difluorobicyclo[4.1.0]heptaneC₈H₁₁BrF₂225.08
2172063-36-22-Amino-6-azaspiro[3.4]octan-7-one hydrochlorideC₇H₁₃ClN₂O176.65
2172063-43-13-(Aminomethyl)thiophene-2-carboxylic acid hydrochlorideC₆H₈ClNO₂S193.66
2172063-69-12-(3-Fluoropyridin-2-yl)propan-1-amineC₈H₁₁FN₂154.19
2172063-99-72-[4-({[(tert-Butoxy)carbonyl]amino}methyl)-1,1-dioxo-1lambda6-thian-4-yl]acetic acidC₁₃H₂₃NO₆S321.39
2172064-48-94-Bromo-2-fluoro-6-methylbenzene-1-sulfonyl chlorideC₇H₅BrClFO₂S287.54
2172064-94-5Dimethyl({4H,5H,6H,7H-pyrazolo[1,5-a]pyrazin-3-yl}methyl)amineC₉H₁₆N₄180.25
2172065-77-76-Amino-3,4-dihydroquinazolin-4-one dihydrochlorideC₈H₉Cl₂N₃O234.09
2172066-77-02-(4-{[(9H-Fluoren-9-yl)methoxy]carbonyl}piperazin-1-yl)-1,3-thiazole-4-carboxylic acidC₂₃H₂₁N₃O₄S435.50
2172068-53-87-Bromo-1-methoxyisoquinoline-3-carboxylic acidC₁₁H₈BrNO₃282.09
2172069-54-2Methyl 5-(4-(chloromethyl)phenyl)-1,3-oxazole-4-carboxylateC₁₂H₁₀ClNO₃251.67
2172070-36-7Lithium(1+) 3-methylpyridine-2-sulfinateC₆H₆LiNO₂S163.13
2172070-89-0tert-Butyl 7-(aminomethyl)-5-azaspiro[2.5]octane-5-carboxylateC₁₃H₂₄N₂O₂240.35
2172071-02-01-Methyl-1H-pyrrolo[2,3-c]pyridine-7-carboxylic acid hydrochlorideC₉H₉ClN₂O₂212.64
2172071-83-7tert-Butyl 3-[2-(chlorosulfonyl)ethyl]piperidine-1-carboxylateC₁₂H₂₂ClNO₄S311.83
2172073-86-6Methyl((1H-pyrrolo(2,3-b)pyridin-4-yl)methyl)amine dihydrochlorideC₉H₁₃Cl₂N₃234.13
2172074-67-62-((1-(Aminomethyl)cyclopentyl)oxy)ethan-1-ol hydrochlorideC₈H₁₈ClNO₂195.69
2172078-55-45-((Oxan-3-yl)methyl)-1,3-thiazol-2-amine hydrochlorideC₉H₁₅ClN₂OS234.75
2172079-20-61-Oxa-9-azaspiro(5.5)undecan-4-one hydrochlorideC₉H₁₆ClNO₂205.69
2172079-26-2(1-(2,2,2-Trifluoroethyl)azetidin-3-yl)methanamine dihydrochlorideC₆H₁₃Cl₂F₃N₂241.08
2172081-57-96,6-Dimethyl-1lambda6,2-thiazinane-1,1-dioneC₆H₁₃NO₂S163.24
2172081-96-63-[(Benzyloxy)methyl]cyclobutan-1-amine hydrochlorideC₁₂H₁₈ClNO227.74
2172081-99-93-(Methylamino)oxetane-3-carboxylic acid hydrochlorideC₅H₁₀ClNO₃167.59
2172082-20-92-Methyl-2-(1-methylcyclopropyl)cyclopropan-1-amine hydrochlorideC₈H₁₆ClN161.68
2172086-82-54Lambda6-thia-5-azaspiro[2.4]heptane-4,4-dioneC₅H₉NO₂S147.20
2172088-95-6tert-Butyl 3-(1-aminoethyl)-3-hydroxyazetidine-1-carboxylateC₁₀H₂₀N₂O₃216.28
2172090-17-2Sodium 1,5-dimethyl-1H-pyrazole-3-carboxylateC₆H₇N₂NaO₂162.12
2172091-09-51-(Bromomethyl)-3-fluorocyclopentaneC₆H₁₀BrF181.05
2172091-17-52-Chloro-4-phenyl-1,3-thiazole-5-sulfonamideC₉H₇ClN₂O₂S₂274.75
2172091-53-95-Oxohexane-1-sulfonyl chlorideC₆H₁₁ClO₃S198.67
2172091-90-46-Methoxy-4-(trifluoromethyl)-2,3,4,5-tetrahydropyridineC₇H₁₀F₃NO181.16
2172092-23-6tert-Butyl 2-carbamothioylazetidine-1-carboxylateC₉H₁₆N₂O₂S216.31
2172096-17-03-Cyclopropylthiophene-2-sulfonyl chlorideC₇H₇ClO₂S₂222.72
2172096-23-85-Amino-3-hydroxy-2-methylbenzoic acid hydrochlorideC₈H₁₀ClNO₃203.63
2172096-60-3tert-Butyl N-[2-(chlorosulfonyl)-1-cyclopentylethyl]carbamateC₁₂H₂₂ClNO₄S311.83
2172096-64-7tert-Butyl 3-[2-(fluorosulfonyl)ethyl]morpholine-4-carboxylateC₁₁H₂₀FNO₅S297.35
2172096-78-33-Bromo-4-chloropyrazolo[1,5-a]pyrazineC₆H₃BrClN₃232.47
2172097-29-73-Methyl-4-(pyridin-3-yl)aniline dihydrochlorideC₁₂H₁₄Cl₂N₂257.16
2172097-88-81-(3,5-Dimethoxyphenyl)propan-1-amine hydrochlorideC₁₁H₁₈ClNO₂231.72
2172098-36-94-(4-Chloro-1,1,1-trifluorobutan-2-yl)morpholineC₈H₁₃ClF₃NO231.65
2172098-54-17-tert-Butyl-1,4-oxazepane hydrochlorideC₉H₂₀ClNO193.72
2172098-92-7Cyclohexyl(3,5-dichlorophenyl)methanamine hydrochlorideC₁₃H₁₈Cl₃N294.65
21721-08-4MesuaginC₂₄H₂₂O₅390.44
21721-73-34,6-Dichloro-2-cyclopropyl-5-methylpyrimidineC₈H₈Cl₂N₂203.07
21721-78-82'-Carbamoyl-2-chloroacetanilideC₉H₉ClN₂O₂212.64
21721-92-62-Methyl-4-nitro-1-(4-nitrophenyl)-1H-imidazoleC₁₀H₈N₄O₄248.20
2172102-42-8Sodium 2-(1-((tert-butoxy)carbonyl)-3-hydroxyazetidin-3-yl)-2,2-difluoroacetateC₁₀H₁₄F₂NNaO₅289.21
2172107-89-89-Methyl-2,5-dioxa-8-azaspiro(3.5)nonaneC₇H₁₃NO₂143.19
2172108-00-61-Ethyl-3,3-difluorocyclopentane-1-carbaldehydeC₈H₁₂F₂O162.18
2172113-22-12-((tert-Butoxy)carbonyl)-7-methyl-2,7-diazaspiro(4.4)nonane-4-carboxylic acidC₁₄H₂₄N₂O₄284.36
2172113-32-3Benzyl N-[1-(chlorosulfonyl)-4-phenylbutan-2-yl]carbamateC₁₈H₂₀ClNO₄S381.88
2172114-23-5(2-Methylpyrimidin-5-yl)methanethiolC₆H₈N₂S140.21
2172118-87-33-Amino-1-methyl-1H-pyrazole-4-sulfonyl fluorideC₄H₆FN₃O₂S179.18
2172121-91-2Methyl 3-(chlorosulfonyl)-1H-indole-6-carboxylateC₁₀H₈ClNO₄S273.70
2172125-99-23-Methyl-1-phenylbutane-1-sulfonyl fluorideC₁₁H₁₅FO₂S230.30
2172129-44-9(1,2,3-Thiadiazol-4-yl)methanesulfonyl fluorideC₃H₃FN₂O₂S₂182.20

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