CAS number index

CAS numbers starting with 21, page 63

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

Showing 6,201 to 6,300 of 8,045 chemicals

CAS numberChemical nameFormulaMol. weight

2172129-56-3tert-Butyl N-[(3-sulfanylcyclohexyl)methyl]carbamateC₁₂H₂₃NO₂S245.39
2172135-66-7tert-Butyl 1-(iodomethyl)-2-oxa-8-azaspiro(4.5)decane-8-carboxylateC₁₄H₂₄INO₃381.25
2172152-41-7Lithium(1+) 2-chloro-1-methyl-1H-imidazole-5-sulfinateC₄H₄ClLiN₂O₂S186.55
2172152-64-4Benzyl 2-[(chlorosulfonyl)methyl]-7-azabicyclo[2.2.1]heptane-7-carboxylateC₁₅H₁₈ClNO₄S343.83
2172153-44-34-Methyl-1,2-oxazolidin-4-ol hydrochlorideC₄H₁₀ClNO₂139.58
2172154-05-9Lithium(1+) 2-methyl-1,3-thiazole-4-sulfinateC₄H₄LiNO₂S₂169.16
2172158-53-95-[(tert-Butoxy)carbonyl]-4H,5H,6H,7H,8H-furo[3,2-c]azepine-2-carboxylic acidC₁₄H₁₉NO₅281.31
2172159-29-22-((2-Oxo-1,2-dihydropyridin-4-yl)oxy)acetic acidC₇H₇NO₄169.14
2172159-38-32-[(6-Methylpyrazin-2-yl)oxy]acetic acidC₇H₈N₂O₃168.15
2172162-50-25-((tert-Butoxy)carbonyl)-5-azaspiro(2.5)octane-7-carboxylic acidC₁₃H₂₁NO₄255.31
2172168-91-9tert-Butyl 7-(iodomethyl)-6,9-dioxa-2-azaspiro[4.5]decane-2-carboxylateC₁₃H₂₂INO₄383.23
2172169-19-44-Bromo-N,3-dimethylaniline hydrochlorideC₈H₁₁BrClN236.54
2172170-35-13,6-Difluoro-2-methoxyaniline hydrochlorideC₇H₈ClF₂NO195.60
2172170-44-21-(2,2,2-Trifluoroethyl)-1H-imidazole-4-carboxylic acid hydrochlorideC₆H₆ClF₃N₂O₂230.57
2172170-54-44-[5-(Trifluoromethyl)-1,2,4-oxadiazol-3-yl]benzene-1-sulfonyl chlorideC₉H₄ClF₃N₂O₃S312.66
2172170-73-72-(Difluoromethyl)-4-methoxybenzene-1-sulfonyl chlorideC₈H₇ClF₂O₃S256.66
2172184-17-5tert-Butyl 4-imino-1H,4H,7H-pyrrolo(2,3-d)pyrimidine-6-carboxylateC₁₁H₁₄N₄O₂234.26
2172185-10-13-(2-Aminopropan-2-yl)oxetan-3-olC₆H₁₃NO₂131.18
2172186-33-1Potassium 6-methyl-3-(pyrimidin-2-yl)pyridine-2-carboxylateC₁₁H₈KN₃O₂253.30
2172186-37-52,7-Naphthyridine dihydrochlorideC₈H₈Cl₂N₂203.07
2172187-93-61-[(2,4-Difluorophenyl)methyl]cyclopropan-1-amine hydrochlorideC₁₀H₁₂ClF₂N219.66
2172188-51-94-(Prop-2-yn-1-yl)piperidine hydrochlorideC₈H₁₄ClN159.66
2172188-92-84-Methylidene-1,2-oxazolidine hydrochlorideC₄H₈ClNO121.57
2172190-46-2(Naphthalen-1-yl)methanesulfonylfluorideC₁₁H₉FO₂S224.26
21722-08-71-Phenyl-1H-imidazol-2-amineC₉H₉N₃159.19
21722-27-0LeptorumolC₁₁H₁₀O₄206.20
21722-83-8Cyclohexaneethyl acetateC₁₀H₁₈O₂170.25
2172212-79-0[2-Methyl-3-(trimethylsilyl)cycloprop-2-en-1-yl]methanamine hydrochlorideC₈H₁₈ClNSi191.78
2172214-89-83,3-Difluoro-5-(iodomethyl)pyrrolidin-2-oneC₅H₆F₂INO261.01
2172215-39-13-(1-Methylcyclopropyl)aniline hydrochlorideC₁₀H₁₄ClN183.68
2172218-63-05-Fluoro-2,2-dimethylcyclopentan-1-oneC₇H₁₁FO130.16
2172219-71-33-Methyl-1,2,3,4-tetrahydroquinoline-8-carboxylic acidC₁₁H₁₃NO₂191.23
2172220-64-12-Hydroxy-2-(piperidin-4-yl)acetic acid hydrochlorideC₇H₁₄ClNO₃195.65
2172221-04-22,4-Dimethyl-3,4-dihydro-2H-1-benzopyran-6-sulfonyl chlorideC₁₁H₁₃ClO₃S260.74
2172221-41-7(4-(1,1-Difluoroethyl)oxan-4-yl)methanesulfonyl chlorideC₈H₁₃ClF₂O₃S262.70
2172221-89-31H-Indazole-3-carbohydrazide hydrochlorideC₈H₉ClN₄O212.64
2172222-49-82-(Methoxymethyl)oxolane-2-carbaldehydeC₇H₁₂O₃144.17
2172228-09-82-Cyclobutylcyclobutan-1-olC₈H₁₄O126.20
2172229-46-62-[(tert-Butoxy)carbonyl]-6-{[(9H-fluoren-9-yl)methoxy]carbonyl}-2,6-diazaspiro[3.4]octane-8-carboxylic acidC₂₇H₃₀N₂O₆478.55
2172230-19-0(5-Fluoropyridin-2-yl)methanesulfonyl fluorideC₆H₅F₂NO₂S193.17
2172230-96-3Methyl 5-[(fluorosulfonyl)methyl]furan-2-carboxylateC₇H₇FO₅S222.19
2172240-86-51-(2,2-Difluorocyclopropyl)-1H-pyrazole-4-carboxylic acidC₇H₆F₂N₂O₂188.13
2172242-63-42-(Difluoromethyl)-4-methoxybenzene-1-sulfonamideC₈H₉F₂NO₃S237.23
2172251-13-56-(((9H-Fluoren-9-yl)methoxy)carbonyl)-1H,4H,5H,6H,7H-pyrazolo(3,4-c)pyridine-3-carboxylic acidC₂₂H₁₉N₃O₄389.41
2172251-28-2(2-(5-Bromo-1H-imidazol-4-yl)ethyl)amine dihydrochlorideC₅H₁₀BrCl₂N₃262.97
2172252-02-5tert-Butyl N-[(1s,3r)-3-(2-aminoethyl)cyclobutyl]carbamateC₁₁H₂₂N₂O₂214.31
2172252-39-82-Hydroxy-2-(3-hydroxyazetidin-3-yl)acetic acidC₅H₉NO₄147.13
2172254-05-4Lithium(1+) ion 1-methyl-1H-imidazole-4-sulfinateC₄H₅LiN₂O₂S152.10
2172254-07-6Potassium 2-methyl-4H,5H,6H,7H-pyrazolo(1,5-a)pyrimidine-3-carboxylateC₈H₁₀KN₃O₂219.28
2172254-86-13-{[2-(tert-Butoxy)ethyl]({[(9H-fluoren-9-yl)methoxy]carbonyl})amino}propanoic acidC₂₄H₂₉NO₅411.50
2172255-26-2Lithium(1+) ion 5-chloro-1-methyl-1H-pyrazole-4-sulfinateC₄H₄ClLiN₂O₂S186.55
2172256-21-03-[({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)methyl]thiophene-2-carboxylic acidC₂₁H₁₇NO₄S379.44
2172256-33-42,3,4,5-Tetrahydro-1,4-benzoxazepine-6-carboxylic acid hydrochlorideC₁₀H₁₂ClNO₃229.66
2172256-67-42-(Iodomethyl)-hexahydro-2H-furo(3,2-c)pyranC₈H₁₃IO₂268.09
2172257-51-95-Chloro-6-(morpholin-4-yl)pyridin-3-amine dihydrochlorideC₉H₁₄Cl₃N₃O286.59
2172257-52-06-(1-Phenylethyl)pyridine-3-carboxylic acidC₁₄H₁₃NO₂227.26
2172260-10-35-(((tert-Butoxy)carbonyl)amino)spiro(2.3)hexane-1-carboxylic acidC₁₂H₁₉NO₄241.29
2172263-79-3tert-Butyl N-(4-amino-1,2,3,4-tetrahydronaphthalen-1-yl)carbamate hydrochlorideC₁₅H₂₃ClN₂O₂298.81
2172265-06-2Methyl 1-(sulfamoylmethyl)cyclopropane-1-carboxylateC₆H₁₁NO₄S193.22
2172268-09-43-Cyclopropyl-1-methyl-1H-pyrazol-5-amine hydrochlorideC₇H₁₂ClN₃173.65
2172270-22-1rac-(3'aR,6'aS)-hexahydrospiro[cyclobutane-1,3'-furo[3,4-b]pyrrole] hydrochlorideC₉H₁₆ClNO189.69
2172274-44-9(1S)-1-(3-Bromophenyl)ethan-1-amine hydrochlorideC₈H₁₁BrClN236.54
2172288-01-42-(Chloromethyl)-4-(trifluoromethyl)-1H-imidazole hydrochlorideC₅H₅Cl₂F₃N₂221.01
2172317-03-0Benzyl N-(4-(chlorosulfonyl)-1,1,1-trifluorobutan-2-yl)carbamateC₁₂H₁₃ClF₃NO₄S359.75
2172323-72-5(3-Aminophenyl)methanesulfonyl fluorideC₇H₈FNO₂S189.21
2172390-50-84-(3-Fluoro-4-methoxyphenyl)-4H,5H,6H,7H-pyrazolo[1,5-a]pyridin-2-amineC₁₄H₁₆FN₃O261.30
21724-96-93-(4-Bromophenyl)-2,5-dihydro-1H-pyrrole-2,5-dioneC₁₀H₆BrNO₂252.07
2172429-60-42-Methyl-1-phenylpropane-1-sulfonyl fluorideC₁₀H₁₃FO₂S216.28
2172430-08-76-Bromo-3,4-dihydro-2H-1-benzopyran-4-sulfonyl fluorideC₉H₈BrFO₃S295.13
2172432-26-5Benzyl 3-[(chlorosulfonyl)methyl]-4,4-difluoropiperidine-1-carboxylateC₁₄H₁₆ClF₂NO₄S367.80
2172435-92-4N,N-Dimethyl-5,6,7,8-tetrahydro-2,7-naphthyridin-1-amineC₁₀H₁₅N₃177.25
2172440-13-81-(4-Hydroxyoxan-4-yl)propan-2-oneC₈H₁₄O₃158.20
2172445-68-85-(Methylsulfanyl)thiophene-2-carbothioamideC₆H₇NS₃189.33
2172445-88-2Methyl 1-(chlorosulfonyl)azetidine-3-carboxylateC₅H₈ClNO₄S213.64
2172447-10-62-Cyclopropyl-4-methyl-3,4-dihydro-2H-1-benzopyran-6-sulfonyl chlorideC₁₃H₁₅ClO₃S286.78
2172450-78-94,4-Difluorocyclohexane-1-carboximidamide hydrochlorideC₇H₁₃ClF₂N₂198.64
2172454-48-55-(Methoxycarbonyl)naphthalene-1-carboxylic acidC₁₃H₁₀O₄230.22
2172455-83-1N-(Cyclobutylmethyl)(tert-butoxy)carbohydrazideC₁₀H₂₀N₂O₂200.28
2172460-15-81-(Benzenesulfonyl)-3-iodo-7-methoxy-1H-indoleC₁₅H₁₂INO₃S413.24
2172461-11-7Hexahydro-2H-cyclopenta[d][1,2]oxazole-3-carboxylic acid, trifluoroacetic acidC₉H₁₂F₃NO₅271.19
2172461-21-9Methyl 2-chloro-1H-1,3-benzodiazole-6-carboxylate hydrochlorideC₉H₈Cl₂N₂O₂247.08
2172462-68-74-{1-[(tert-Butoxy)carbonyl]piperidin-4-yl}-1-{[(9H-fluoren-9-yl)methoxy]carbonyl}pyrrolidine-3-carboxylic acidC₃₀H₃₆N₂O₆520.63
2172463-13-57,7-Dimethyl-1,4-oxazepane hydrochlorideC₇H₁₆ClNO165.66
2172469-77-92-[3-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)azetidin-1-yl]acetic acidC₂₀H₂₀N₂O₄352.39
2172473-22-05-(((tert-Butoxy)carbonyl)amino)pyridine-2-sulfinic acidC₁₀H₁₄N₂O₄S258.30
2172473-41-31-(1,3-Oxazol-5-yl)propan-1-oneC₆H₇NO₂125.13
2172473-72-04-(1,1-Difluoroethyl)oxan-4-amine hydrochlorideC₇H₁₄ClF₂NO201.64
2172473-99-14-(1-Methylcyclopropyl)aniline hydrochlorideC₁₀H₁₄ClN183.68
2172474-25-6Methyl 6-(chlorosulfonyl)naphthalene-2-carboxylateC₁₂H₉ClO₄S284.72
2172474-28-93-(Piperidin-4-yl)-3,4-dihydroquinazolin-4-one, trifluoroacetic acidC₁₅H₁₆F₃N₃O₃343.31
2172474-45-0Bicyclo[4.1.0]heptane-7-sulfonyl chlorideC₇H₁₁ClO₂S194.68
2172475-28-22-Ethyl-6-oxo-1,6-dihydropyrimidine-5-carboxylic acid hydrochlorideC₇H₉ClN₂O₃204.61
2172476-02-51-((5-Methyl-1,3-oxazol-4-yl)methyl)piperazine dihydrochlorideC₉H₁₇Cl₂N₃O254.16
2172478-92-92-Bromo-5-((trifluoromethyl)thio)-1,3,4-thiadiazoleC₃BrF₃N₂S₂265.08
2172480-54-32-[(2-Azidoethyl)amino]acetic acid hydrochlorideC₄H₉ClN₄O₂180.59
2172482-73-22,3-Dihydro-1H-inden-4-amine hydrochlorideC₉H₁₂ClN169.66
2172482-77-6Lithium(1+) ion 1-tert-butyl-1H-pyrazole-4-sulfinateC₇H₁₁LiN₂O₂S194.19
2172487-20-43-Formyl-1,4-dihydroxynaphthalene-2-carboxylic acidC₁₂H₈O₅232.19
2172488-42-35-(Aminomethyl)-2,3-dihydro-1H-inden-1-one hydrochlorideC₁₀H₁₂ClNO197.66
2172488-54-72-Methyl-2-(propan-2-yloxy)propan-1-amine hydrochlorideC₇H₁₈ClNO167.68

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