CAS number index

CAS numbers starting with 21, page 28

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

Showing 2,701 to 2,800 of 8,045 chemicals

CAS numberChemical nameFormulaMol. weight

2137779-20-31,2-Dimethylpiperidine-4-carboxylic acid hydrochlorideC₈H₁₆ClNO₂193.67
2137779-23-6tert-Butyl 3-[(2,3-dihydro-1H-indol-3-yl)methyl]morpholine-4-carboxylateC₁₈H₂₆N₂O₃318.42
2137779-84-92-(Bromodifluoromethyl)-2-methyloxiraneC₄H₅BrF₂O186.98
2137780-61-91-Methyl-1,5-diazecane dihydrochlorideC₉H₂₂Cl₂N₂229.19
2137780-65-35-Methoxyspiro[2.3]hexan-1-amine hydrochlorideC₇H₁₄ClNO163.65
2137780-69-73-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-1-methyl-1H-pyrazole-5-carboxylic acidC₂₀H₁₇N₃O₄363.37
2137780-70-04-(2-Hydroxyethoxy)-1lambda6-thiane-1,1-dioneC₇H₁₄O₄S194.25
2137782-66-05-Chloro-7-methylimidazo[1,2-a]pyrimidine hydrochlorideC₇H₇Cl₂N₃204.06
2137783-22-1(2,3-Dihydro-1-benzofuran-7-yl)methanamine hydrochlorideC₉H₁₂ClNO185.65
2137783-24-31-(1,3-Thiazol-5-yl)ethan-1-amine dihydrochlorideC₅H₁₀Cl₂N₂S201.12
2137783-49-22-Methyl-2-(4-(2-methyl-3-(piperidin-1-yl)propyl)phenyl)propanoic acidC₁₉H₂₉NO₂303.45
2137783-54-98-Benzyl-1-oxa-8-azaspiro[4.5]dec-2-en-4-oneC₁₅H₁₇NO₂243.31
2137783-58-36-Chloroisoquinoline-8-carboxylic acidC₁₀H₆ClNO₂207.62
2137783-98-11-(5-Bromothiophen-2-yl)ethan-1-amine hydrochlorideC₆H₉BrClNS242.57
2137784-59-71H-Imidazole-4-carbonitrile hydrochlorideC₄H₄ClN₃129.55
2137785-31-83-Bromo-4-methoxypyrazolo(1,5-a)pyridineC₈H₇BrN₂O227.06
2137785-49-82-(1-{[(9H-Fluoren-9-yl)methoxy]carbonyl}pyrrolidin-2-yl)-1,3-thiazole-4-carboxylic acidC₂₃H₂₀N₂O₄S420.49
2137785-62-5(2-(Pyrrolidin-1-yl)cyclohexyl)methanamine dihydrochlorideC₁₁H₂₄Cl₂N₂255.23
2137785-66-9tert-Butyl N-({2-azabicyclo[4.2.0]octan-1-yl}methyl)carbamateC₁₃H₂₄N₂O₂240.35
2137785-72-7Potassium 5-(1,2-thiazol-5-yl)-1,3,4-oxadiazole-2-carboxylateC₆H₂KN₃O₃S235.26
2137786-35-5Azetidin-3-amine, bis(trifluoroacetic acid)C₇H₁₀F₆N₂O₄300.15
2137786-49-1rac-(1R,3S)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2,3-dihydro-1H-indene-1-carboxylic acidC₂₅H₂₁NO₄399.45
2137786-91-32-(((9H-Fluoren-9-yl)methoxy)carbonyl)-1,2,3,4-tetrahydroisoquinoline-8-carboxylic acidC₂₅H₂₁NO₄399.45
2137787-09-68-Methyl-1,4-dioxaspiro(4.5)decan-8-amine hydrochlorideC₉H₁₈ClNO₂207.70
2137787-17-6tert-Butyl N-((2-azabicyclo(3.2.0)heptan-1-yl)methyl)carbamateC₁₂H₂₂N₂O₂226.32
2137787-51-85-(((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)methyl)-2-methoxybenzoic acidC₂₄H₂₁NO₅403.43
2137787-63-22-[1-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)ethyl]-4-methyl-1,3-thiazole-5-carboxylic acidC₂₂H₂₀N₂O₄S408.48
2137787-66-56-Methoxy-5-(oxan-4-yl)-2,3,4,5-tetrahydropyridineC₁₁H₁₉NO₂197.28
2137787-86-92-{[(9H-Fluoren-9-yl)methoxy]carbonyl}-2-azabicyclo[3.1.0]hexane-4-carboxylic acidC₂₁H₁₉NO₄349.39
2137787-99-42-{4-Chloro-1H-pyrrolo[2,3-b]pyridin-3-yl}acetic acid hydrochlorideC₉H₈Cl₂N₂O₂247.08
2137788-84-06-{[(tert-Butoxy)carbonyl]amino}bicyclo[3.2.0]heptane-3-carboxylic acidC₁₃H₂₁NO₄255.31
2137790-24-82-Amino-2-methyl-3-(1H-pyrazol-1-yl)propanoic acid dihydrochlorideC₇H₁₃Cl₂N₃O₂242.11
2137792-08-45-(Aminomethyl)pyridine-2-carboxylic acid hydrochlorideC₇H₉ClN₂O₂188.61
2137792-51-75-Iodo-2-methoxy-1,3-thiazoleC₄H₄INOS241.05
2137792-99-32-Aminopyridine-4-sulfonamide hydrochlorideC₅H₈ClN₃O₂S209.66
2137793-02-1(6-Methoxypyrazin-2-yl)methanamine dihydrochlorideC₆H₁₁Cl₂N₃O212.08
2137794-00-21-Ethynylspiro[2.2]pentaneC₇H₈92.14
2137794-19-32-(3-(((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)methyl)phenoxy)acetic acidC₂₄H₂₁NO₅403.43
2137794-33-1rac-(2R,3S)-2-{1-[(tert-Butoxy)carbonyl]piperidin-4-yl}oxolane-3-carboxylic acidC₁₅H₂₅NO₅299.37
2137794-68-23-Ethynyl-5-methyl-1,2-oxazoleC₆H₅NO107.11
2137796-75-72,3-Dihydro-1H-indene-2-sulfonyl fluorideC₉H₉FO₂S200.23
2137796-84-8(2-Chloro-6-ethyl-5,6,7,8-tetrahydro-1,6-naphthyridin-4-yl)methanolC₁₁H₁₅ClN₂O226.71
21378-06-31-Bromo-3-ethylpent-2-eneC₇H₁₃Br177.09
21378-20-14-(2-Bromoethylidene)tetrahydro-2H-pyranC₇H₁₁BrO191.07
21378-21-22-Cyclohexen-1-ol, 3-methyl-C₇H₁₂O112.17
2137803-51-92-(((2-Bromophenyl)methyl)((((9H-fluoren-9-yl)methoxy)carbonyl))amino)acetic acidC₂₄H₂₀BrNO₄466.33
2137804-12-5Lithium(1+) ion 5-[(tert-butoxy)carbonyl]-4H,5H,6H,7H-[1,3]thiazolo[4,5-c]pyridine-2-carboxylateC₁₂H₁₅LiN₂O₄S290.27
2137804-79-45-{[(9H-Fluoren-9-yl)methoxy]carbonyl}-4H,5H,6H-thieno[2,3-c]pyrrole-2-carboxylic acidC₂₂H₁₇NO₄S391.45
2137805-11-71-Methyl-5-(trifluoromethyl)-1H-1,3-benzodiazole-6-carboxylic acidC₁₀H₇F₃N₂O₂244.17
2137805-83-36-((Methylamino)methyl)-1,2-dihydropyridin-2-one hydrobromideC₇H₁₁BrN₂O219.08
2137805-98-04-Bromo-1H-imidazole-5-sulfonyl fluorideC₃H₂BrFN₂O₂S229.03
2137807-53-34-{[(tert-Butoxy)carbonyl]amino}-1,2,3,4-tetrahydroquinoline-8-carboxylic acidC₁₅H₂₀N₂O₄292.33
2137808-08-14-Methylmorpholine-2-carboximidamide dihydrochlorideC₆H₁₅Cl₂N₃O216.11
2137808-43-48-Bromo-3,4-dihydro-2H-1,5-benzodioxepine-7-sulfonyl fluorideC₉H₈BrFO₄S311.13
2137812-22-52-(1,2,4-Triazin-3-yl)propan-2-amine hydrochlorideC₆H₁₁ClN₄174.63
2137812-91-8Pyrrolidine-3-carboximidamide hydrochlorideC₅H₁₂ClN₃149.63
2137814-09-4tert-Butyl N-(3-amino-2,2,4,4-tetramethylcyclobutyl)carbamate hydrochlorideC₁₃H₂₇ClN₂O₂278.82
2137814-13-0Dimethoxy-1,2-thiazole-4-carboxylic acidC₆H₇NO₄S189.19
2137815-53-14-(5-(Trifluoromethyl)-1H-imidazol-2-yl)piperidine dihydrochlorideC₉H₁₄Cl₂F₃N₃292.13
2137815-83-7(3-Chloro-2-methoxyphenyl)methanamine hydrochlorideC₈H₁₁Cl₂NO208.09
2137817-02-62-(Morpholin-4-yl)ethanimidamide dihydrochlorideC₆H₁₅Cl₂N₃O216.11
2137817-20-8[2-(1-Bromocyclopropyl)ethynyl]triethylsilaneC₁₁H₁₉BrSi259.26
2137817-32-24-(Oxolan-2-yl)oxane-4-carboxylic acidC₁₀H₁₆O₄200.23
2137817-93-52-Oxo-1,2-dihydroquinoxaline-6-sulfonyl fluorideC₈H₅FN₂O₃S228.20
2137818-26-72-Oxo-2,3-dihydro-1H-1,3-benzodiazole-5-sulfonyl fluorideC₇H₅FN₂O₃S216.19
2137818-27-83,3-Diethoxypropanimidamide, acetic acidC₉H₂₀N₂O₄220.27
2137818-98-32-Chloro-6-fluorobenzene-1-sulfonyl fluorideC₆H₃ClF₂O₂S212.60
2137821-23-73-[7-Fluoro-2-(4-fluorophenyl)-1H-indol-3-yl]propanoic acidC₁₇H₁₃F₂NO₂301.29
2137821-46-42-(1,5-Dimethyl-1H-pyrazol-3-yl)oxolane-2-carboxylic acidC₁₀H₁₄N₂O₃210.23
2137821-59-92-(1,4-Dimethyl-1H-pyrazol-5-yl)oxolane-2-carboxylic acidC₁₀H₁₄N₂O₃210.23
2137821-77-13-[({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)methyl]-1-methyl-1H-pyrazole-5-carboxylic acidC₂₁H₁₉N₃O₄377.40
2137822-79-65-Bromo-2-{[(furan-2-yl)methyl]amino}pyrimidine-4-carboxylic acidC₁₀H₈BrN₃O₃298.10
2137822-87-61-Chlorocyclopropane-1-sulfonyl chlorideC₃H₄Cl₂O₂S175.04
2137822-88-71-Cyclopropyl-4-ethyl-1H-pyrazol-5-amineC₈H₁₃N₃151.21
2137822-96-75-(Difluoromethyl)-1-methyl-1H-pyrazol-3-amine hydrochlorideC₅H₈ClF₂N₃183.59
2137823-23-32-(Prop-2-en-1-yl)-2H-indazol-6-amineC₁₀H₁₁N₃173.22
2137823-28-82-Chloropyrimidine-5-sulfonyl fluorideC₄H₂ClFN₂O₂S196.59
2137823-37-91-Ethynylcyclopropane-1-sulfonyl fluorideC₅H₅FO₂S148.16
2137823-83-56-(Hydroxymethyl)pyridine-2-carboxylic acid hydrochlorideC₇H₈ClNO₃189.60
2137824-18-93-(((tert-Butoxy)carbonyl)amino)-1-(((9H-fluoren-9-yl)methoxy)carbonyl)azetidine-3-carboxylic acidC₂₄H₂₆N₂O₆438.48
2137827-99-5Methyl 7-chloro-1H-pyrrolo[3,2-c]pyridine-2-carboxylateC₉H₇ClN₂O₂210.62
2137829-05-93-(2-Fluoroethyl)-8-azabicyclo[3.2.1]octaneC₉H₁₆FN157.23
2137830-26-16-[(tert-Butoxy)carbonyl]-8-fluoro-6-azaspiro[3.4]octane-8-carboxylic acidC₁₃H₂₀FNO₄273.30
2137831-45-78-Bromo-6-chloroisoquinolineC₉H₅BrClN242.50
2137832-02-97',8'-Dihydro-6'H-spiro(azetidine-3,5'-imidazo(1,2-a)pyrimidine)-7'-one dihydrochlorideC₈H₁₂Cl₂N₄O251.12
2137832-80-34-(4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)piperidin-1-yl)benzoic acidC₂₇H₂₆N₂O₄442.51
2137833-08-8Ethyl 3-amino-3-cyanopropanoate trifluoroacetateC₈H₁₁F₃N₂O₄256.18
2137833-60-2Methyl 3-(aminomethyl)oxolane-3-carboxylate hydrochlorideC₇H₁₄ClNO₃195.65
2137835-08-4tert-Butyl N-{3,4-dihydrospiro[1-benzopyran-2,4'-piperidine]-4-yl}carbamateC₁₈H₂₆N₂O₃318.42
2137835-12-0Sodium 6-methylpyridazine-3-sulfinateC₅H₅N₂NaO₂S180.16
2137836-38-32-Ethyl-1,3-benzoxazole-5-sulfonyl fluorideC₉H₈FNO₃S229.23
2137836-49-6rac-(3aR,7aS)-3a-amino-octahydro-1H-indol-2-oneC₈H₁₄N₂O154.21
2137836-61-2(2,3,6-Trifluorophenyl)hydrazine hydrochlorideC₆H₆ClF₃N₂198.57
2137836-62-36-Amino-2-thiaspiro[3.3]heptane 2,2-dioxide hydrochlorideC₆H₁₂ClNO₂S197.69
2137837-57-9rac-((1R,2R)-2-(Trifluoromethyl)cyclopropyl)methanamine hydrochlorideC₅H₉ClF₃N175.58
2137838-84-5rac-tert-Butyl (1R,6S)-3,8-diazabicyclo[4.2.0]octane-8-carboxylate trifluoroacetateC₁₃H₂₁F₃N₂O₄326.31
2137841-10-0tert-Butyl N-[4,4-dimethyl-1-(2-oxoethyl)cyclohexyl]carbamateC₁₅H₂₇NO₃269.38
2137841-11-1(4-Ethyloxan-4-yl)methanesulfonylchlorideC₈H₁₅ClO₃S226.72
2137841-25-7tert-Butyl 3-(2-hydroxyphenyl)prop-2-ynoateC₁₃H₁₄O₃218.25
2137843-00-4Sodium (1-((tert-butoxy)carbonyl)azepan-4-yl)methanesulfinateC₁₂H₂₂NNaO₄S299.37

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