CAS number index

CAS numbers starting with 21, page 45

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

Showing 4,401 to 4,500 of 8,045 chemicals

CAS numberChemical nameFormulaMol. weight

21541-32-21-(2-Thioxo-2,3-dihydro-1H-benzo[d]imidazol-1-yl)ethanoneC₉H₈N₂OS192.24
2154149-68-34-(Aminomethyl)-4-methylazetidin-2-oneC₅H₁₀N₂O114.15
2154180-61-5[1-(But-3-yn-1-yl)-3-methylpiperidin-3-yl]methanolC₁₁H₁₉NO181.28
21542-82-5Acid Yellow 10C₁₃H₁₀N₂O₆S322.30
21542-96-1Dimethyl behenamineC₂₄H₅₁N353.68
2154245-24-4tert-Butyl N-(1-oxo-1lambda6-thiomorpholin-1-ylidene)carbamateC₉H₁₈N₂O₃S234.32
21543-49-7(6-Chloropyridin-3-yl)methanolC₆H₆ClNO143.57
2154303-94-12-(2-Cyclopropoxyethoxy)ethan-1-amineC₇H₁₅NO₂145.20
215433-52-6(R)-3,3'-Bis((1,1'-biphenyl)-4-yl)-(1,1'-binaphthalene)-2,2'-diolC₄₄H₃₀O₂590.72
215433-53-7(R)-[2,3':1',1'':3'',2'''-Quaternaphthalene]-2',2''-diolC₄₀H₂₆O₂538.65
215434-25-65-(2-Methyl-1,3-thiazol-4-yl)thiophene-2-sulfonyl chlorideC₈H₆ClNO₂S₃279.80
2154341-73-63-(8-Amino-2-methyl-4-oxo-3,4-dihydroquinazolin-3-yl)piperidine-2,6-dioneC₁₄H₁₄N₄O₃286.29
2154342-25-12-(2,6-Dioxopiperidin-3-yl)-4-(prop-2-yn-1-ylamino)isoindoline-1,3-dioneC₁₆H₁₃N₃O₄311.30
2154342-26-22-(2,6-Dioxopiperidin-3-yl)-4-[methyl(prop-2-yn-1-yl)amino]-2,3-dihydro-1H-isoindole-1,3-dioneC₁₇H₁₅N₃O₄325.32
2154342-45-54-((3-Aminopropyl)amino)-2-(2,6-dioxopiperidin-3-yl)-2,3-dihydro-1H-isoindole-1,3-dione hydrochlorideC₁₆H₁₉ClN₄O₄366.81
2154342-56-84-((2-(2-Aminoethoxy)ethyl)amino)-2-(2,6-dioxopiperidin-3-yl)isoindoline-1,3-dione hydrochlorideC₁₇H₂₁ClN₄O₅396.83
2154357-02-34-[(Azetidin-3-yl)amino]-2-(2,6-dioxopiperidin-3-yl)-2,3-dihydro-1H-isoindole-1,3-dione, trifluoroacetic acidC₁₈H₁₇F₃N₄O₆442.35
2154381-23-2tert-Butyl 6-hydrazinylpyridine-2-carboxylateC₁₀H₁₅N₃O₂209.25
21544-02-5Cyclopentanemethanamine, 2-amino-C₆H₁₄N₂114.19
21544-03-64-Cyclohexene-1,2-dicarboxylic acid, 1,2-bis(2-oxiranylmethyl) esterC₁₄H₁₈O₆282.29
21544-81-04,6-Dimethoxy-2,3-dihydro-1H-indole-2,3-dioneC₁₀H₉NO₄207.19
2154406-04-7Nbi-921352C₂₂H₂₅FN₄O₂S₂460.60
2154467-80-62-((E)-2-Phenylethenyl)pyrrolidineC₁₂H₁₅N173.26
21545-54-0Thiourea, N-cyclohexyl-N'-(2-(4-morpholinyl)ethyl)-C₁₃H₂₅N₃OS271.43
2154505-00-53-(1-Methylcyclobutyl)prop-2-enenitrileC₈H₁₁N121.18
215453-26-21-Amino-6-bromoisoquinolineC₉H₇BrN₂223.07
215453-35-3Thieno[3,2-c]pyridin-4-amineC₇H₆N₂S150.21
215453-48-81-Trifluoromethanesulfonylpiperazine hydrochlorideC₅H₁₀ClF₃N₂O₂S254.66
215453-51-37-Bromo-1-chloroisoquinolineC₉H₅BrClN242.50
215453-53-57-Bromoisoquinolin-1-amineC₉H₇BrN₂223.07
215453-68-21-Aminoisoquinoline-6-carboxylic acid hydrochlorideC₁₀H₉ClN₂O₂224.65
215453-80-8N,N-Dimethylpiperazine-1-carboxamide hydrochlorideC₇H₁₆ClN₃O193.68
215453-85-34-(Oxan-4-yloxy)benzene-1-sulfonyl chlorideC₁₁H₁₃ClO₄S276.74
215453-88-61,3-Dimethoxypropan-2-yl methanesulfonateC₆H₁₄O₅S198.24
215454-72-1Thieno[2,3-c]pyridin-7-amineC₇H₆N₂S150.21
215456-06-7rac-(1R,2R)-2-(4-Bromo-1H-pyrazol-1-yl)cyclohexan-1-olC₉H₁₃BrN₂O245.12
215457-77-54-Heptyl-1,3-thiazol-2-amineC₁₀H₁₈N₂S198.34
2154666-54-12-(3-Methoxycyclobutyl)acetic acidC₇H₁₂O₃144.17
21547-70-62-(1H-Benzimidazol-2-ylsulfanyl)propanoic acidC₁₀H₁₀N₂O₂S222.27
21547-71-72-(1H-Benzimidazol-2-ylthio)butanoic acidC₁₁H₁₂N₂O₂S236.30
21547-79-52-(1H-Benzimidazol-2-ylsulfanyl)-1-phenylethanoneC₁₅H₁₂N₂OS268.34
21548-32-3FosthietanC₆H₁₂NO₃PS₂241.27
21548-51-61-Ethyl-2-isocyano-3-methylbenzeneC₁₀H₁₁N145.21
2155-60-4Dibutyl itaconateC₁₃H₂₂O₄242.31
2155-70-6Tributyltin methacrylateC₁₆H₃₂O₂Sn375.14
2155-71-71,2-Benzenedicarboperoxoic acid, 1,2-bis(1,1-dimethylethyl) esterC₁₆H₂₂O₆310.35
2155-73-9TributylstibineC₁₂H₂₇Sb293.11
2155-74-01-Butanol, antimony(3+) salt (3:1)C₁₂H₂₇O₃Sb341.11
2155-94-4N,N-DimethylallylamineC₅H₁₁N85.15
2155-96-6DiphenylvinylphosphineC₁₄H₁₃P212.23
21550-07-21-(2-Chlorophenyl)butan-1-oneC₁₀H₁₁ClO182.65
21550-08-33'-ChlorobutyrophenoneC₁₀H₁₁ClO182.65
21550-12-93'-MethylbutyrophenoneC₁₁H₁₄O162.23
21550-30-1Propanoic acid, 2-(4-chlorophenoxy)-2-methyl-, (6-(hydroxymethyl)-2-pyridinyl)methyl ester, hydrochloride (1:1)C₁₇H₁₉Cl₂NO₄372.25
21550-48-16-(Acetylamino)nicotinic acidC₈H₈N₂O₃180.16
21550-86-71,2,3,3a-Tetrahydropyrrolo[1,2-a]quinoxalin-4(5H)-oneC₁₁H₁₂N₂O188.23
215500-55-31-(4-Nitrophenyl)-5-(trifluoromethyl)-1H-pyrazoleC₁₀H₆F₃N₃O₂257.17
215500-77-91,3-Diethyl 2-{[(2-{[3-(trifluoromethyl)pyridin-2-yl]amino}ethyl)amino]methylidene}propanedioateC₁₆H₂₀F₃N₃O₄375.35
21551-65-52,5-Dihydroxy-3-pentadecyl-1,4-benzoquinoneC₂₁H₃₄O₄350.50
2155113-61-24-(But-3-yn-1-yl)-2-(propan-2-yl)thiomorpholineC₁₁H₁₉NS197.35
215518-92-61-[3-(Trifluoromethyl)pyridin-2-yl]imidazolidine-2-thioneC₉H₈F₃N₃S247.25
215519-32-7N-(3-Oxo-4,4,4-trifluorobut-1-enyl)morpholineC₈H₁₀F₃NO₂209.17
215519-35-03-((4-Fluorophenyl)methyl)-1,2,4-oxadiazol-5-amineC₉H₈FN₃O193.18
215523-34-51,8-Naphthyridine-2-carboxylic acidC₉H₆N₂O₂174.16
215524-17-72-(2-Aminoethyl)-2,3-dihydropyridazin-3-oneC₆H₉N₃O139.16
215527-70-1Phenyl-d5-boronic acidC₆H₇BO₂126.96
215529-47-82-(6-((3-(4-(Diphenylmethoxy)piperidino)propyl)amino)imidazo(1,2-b)pyridazin-2-yl)-2-methylpropionic acidC₃₁H₃₇N₅O₃527.67
21553-46-83,5-Dimethyl-p-anisic acidC₁₀H₁₂O₃180.20
21553-54-82-Nitro-4-(piperidin-1-ylmethyl)phenolC₁₂H₁₆N₂O₃236.27
215530-62-46-Chloro-[1,2,4]triazolo[1,5-b]pyridazine-2-carboxylic acidC₆H₃ClN₄O₂198.57
21554-43-82-(2-Methyl-propane-2-sulfonyl)-benzothiazoleC₁₁H₁₃NO₂S₂255.36
21554-71-2DihydrogenisteinC₁₅H₁₂O₅272.26
215543-92-3Su5402C₁₇H₁₆N₂O₃296.33
2155546-36-21-(1,3-Dimethyl-1H-pyrazol-5-yl)pyrrolidin-3-amineC₉H₁₆N₄180.25
21557-09-54'-(1-Pyrrolidinyl)acetophenoneC₁₂H₁₅NO189.26
21557-13-11-(4-Phenylpiperazin-1-yl)ethanoneC₁₂H₁₆N₂O204.27
2155738-95-53-Amino-2-ethoxy-6-fluorobenzonitrileC₉H₉FN₂O180.18
2155785-93-44-Chloro-6-fluoro-2-methylpyrimidineC₅H₄ClFN₂146.55
21558-19-010-(4-Nitrobenzylidene)-9-anthroneC₂₁H₁₃NO₃327.34
2155840-10-9rac-(1R,2R)-2-(Trifluoromethyl)cyclopentane-1-carboxylic acidC₇H₉F₃O₂182.14
2155840-12-1N,N-Dimethyl-3-[(3S)-pyrrolidin-3-yloxy]pyridin-2-amine dihydrochlorideC₁₁H₁₉Cl₂N₃O280.20
2155840-16-5rac-1-[(3R,4S)-4-{[(tert-Butoxy)carbonyl]amino}oxolan-3-yl]-1H-pyrazole-4-carboxylic acidC₁₃H₁₉N₃O₅297.31
2155840-17-6tert-Butyl N-(((2S,4R)-4-methoxypyrrolidin-2-yl)methyl)carbamateC₁₁H₂₂N₂O₃230.31
2155840-19-82-(Pyrrolidin-1-yl)-3-[(3S)-pyrrolidin-3-yloxy]pyridine dihydrochlorideC₁₃H₂₁Cl₂N₃O306.24
2155840-22-3(2R)-4,4,4-Trifluoro-1-(2,4,5-trifluorophenyl)butan-2-amine hydrochlorideC₁₀H₁₀ClF₆N293.64
2155840-35-8rac-(1R,2R,3R,4S)-3-Aminobicyclo(2.2.1)heptane-2-carboxylic acidC₈H₁₃NO₂155.20
2155840-54-1Methyl (1s,3s)-3-hydroxy-3-(4-hydroxyphenyl)cyclobutane-1-carboxylateC₁₂H₁₄O₄222.24
2155840-68-7tert-Butyl N-[(1R)-1-[4-(aminomethyl)phenyl]ethyl]carbamateC₁₄H₂₂N₂O₂250.34
2155840-79-0(1R)-1-((3R)-Morpholin-3-yl)ethane-1,2-diol hydrochlorideC₆H₁₄ClNO₃183.63
2155840-88-1rac-(1R,2R)-2-(2-Methylphenoxy)cyclohexan-1-amine hydrochlorideC₁₃H₂₀ClNO241.76
2155850-80-72-Methyl-4-(1-methyl-6-isoquinolyl)but-3-yn-2-olC₁₅H₁₅NO225.29
2155851-98-0Methyl 2-amino-3-(3-phenoxyphenyl)propanoate hydrochlorideC₁₆H₁₈ClNO₃307.78
2155851-99-12-Hydroxy-2-(4-hydroxyoxan-4-yl)acetic acidC₇H₁₂O₅176.17
2155852-05-2(1-Methylcyclohex-2-en-1-yl)methanamine hydrochlorideC₈H₁₆ClN161.68
2155852-09-6Methyl 2-amino-3-phenylbutanoate hydrochlorideC₁₁H₁₆ClNO₂229.71
2155852-14-31-tert-Butyl 4-methyl 5-formyl-1,2,3,4-tetrahydropyridine-1,4-dicarboxylateC₁₃H₁₉NO₅269.30
2155852-18-7Methyl 5-methylpiperidine-2-carboxylateC₈H₁₅NO₂157.21
2155852-23-45-((Oxolan-2-yl)methyl)-1,3-thiazol-2-amine hydrochlorideC₈H₁₃ClN₂OS220.72
2155852-25-62-Chloro-5-fluoro-N-methylaniline hydrochlorideC₇H₈Cl₂FN196.05
2155852-26-75-(Chloromethyl)-(1,2,4)triazolo(1,5-a)pyridine hydrochlorideC₇H₇Cl₂N₃204.06

All pages for 21 (81 pages)Show all

Every CAS number here is checked for a valid check digit. Confirm it with the supplier before you order. CAS Registry Number is a registered trademark of the American Chemical Society.