CAS number index

CAS numbers starting with 21, page 4

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

Showing 301 to 400 of 8,045 chemicals

CAS numberChemical nameFormulaMol. weight

2104989-86-62-(2-Methyl-4,5,6,7-tetrahydro-1,3-benzoxazol-4-yl)acetonitrileC₁₀H₁₂N₂O176.22
2105-23-9O-Carbamoyl-L-serineC₄H₈N₂O₄148.12
2105-40-0(2-Methylcyclohexyl)methanolC₈H₁₆O128.22
2105-43-3Fursultiamine hydrochlorideC₁₇H₂₇ClN₄O₃S₂435.01
2105-59-12,4-Dichloro-5-fluoronitrobenzeneC₆H₂Cl₂FNO₂209.99
2105-61-51,2,4-Trifluoro-5-nitrobenzeneC₆H₂F₃NO₂177.08
2105-71-73-FluorofuranC₄H₃FO86.06
2105-80-83-Fluorobutanoic acidC₄H₇FO₂106.10
2105-94-44-Bromo-2-fluorophenolC₆H₄BrFO191.00
2105-96-64-Fluoro-3-nitrophenolC₆H₄FNO₃157.10
21050-13-5Bis(triphenylphosphine)iminium chlorideC₃₆H₃₀ClNP₂574.04
21050-92-04-Methyl-5-sulfanyl-4H-1,2,4-triazole-3-carboxylic acidC₄H₅N₃O₂S159.17
21050-95-31-ChlorobenzotriazoleC₆H₄ClN₃153.57
21050-97-52-Amino-N-(pyridin-2-yl)acetamide dihydrochlorideC₇H₁₁Cl₂N₃O224.09
21050-98-62-(1,3-Dioxo-1,3-dihydro-2H-isoindol-2-yl)-N-(pyridin-3-yl)acetamideC₁₅H₁₁N₃O₃281.27
21051-07-03-Amino-N-(pyridin-3-yl)propanamide dihydrochlorideC₈H₁₃Cl₂N₃O238.12
21051-13-82-Amino-N-(pyridin-4-yl)acetamide dihydrochlorideC₇H₁₁Cl₂N₃O224.09
21051-31-02-(1,3-Dioxo-1,3-dihydro-isoindol-2-yl)-N-(4H-[1,2,4]triazol-3-yl)-propionamideC₁₃H₁₁N₅O₃285.26
2105139-81-7Methyl 1H,3H,4H-pyrrolo(2,1-c)(1,4)oxazine-8-carboxylateC₉H₁₁NO₃181.19
2105197-65-5Ethyl 2-(5-amino-1,2-oxazol-3-yl)acetateC₇H₁₀N₂O₃170.17
2105248-50-6tert-Butyl 3-(1,4-diazepan-1-yl)pyrrolidine-1-carboxylateC₁₄H₂₇N₃O₂269.39
2105279-36-31-(Bromomethyl)-5-oxaspiro[2.3]hexaneC₆H₉BrO177.04
210529-01-4Boc-D-Asn(Trt)-OHC₂₈H₃₀N₂O₅474.56
210529-62-7N~2~-(5-Fluoro-2,4-dinitrophenyl)-D-valinamideC₁₁H₁₃FN₄O₅300.25
21053-25-85-(4-Methylphenyl)-1,2-oxazol-3-olC₁₀H₉NO₂175.19
21053-55-4RefChem:357243C₁₅H₁₄O₂226.28
21053-71-43-Acetyl-4,5-diphenyl-2(5H)-furanoneC₁₈H₁₄O₃278.31
210530-70-4Methyl 2-(3,5-difluorophenyl)acetateC₉H₈F₂O₂186.16
210532-24-42,3-Difluorobenzene-1-sulfonyl chlorideC₆H₃ClF₂O₂S212.60
210532-25-53,5-Difluorobenzenesulfonyl chlorideC₆H₃ClF₂O₂S212.60
210537-04-51,11b-Dihydro-11b-hydroxymedicarpinC₁₆H₁₆O₅288.30
210537-32-92,6-Bis(1-(2-methylphenylimino)ethyl)pyridineC₂₃H₂₃N₃341.46
210538-44-6TaprizosinC₂₅H₂₆N₆O₄S506.59
210538-75-3N-(1,2,3,4-Tetrahydroisoquinolin-5-yl)methanesulfonamide hydrochlorideC₁₀H₁₅ClN₂O₂S262.76
210539-03-06-Benzyl-1,2,3,4,5,6,7,8-octahydro-1,6-naphthyridin-2-oneC₁₅H₁₈N₂O242.32
210539-04-16-Benzyl-2-chloro-5,6,7,8-tetrahydro-1,6-naphthyridineC₁₅H₁₅ClN₂258.75
21054-64-88-(1H-Benzimidazol-2-ylmethoxy)quinolineC₁₇H₁₃N₃O275.31
21054-65-9Ethyl (5-phenyl-2H-tetrazol-2-yl)acetateC₁₁H₁₂N₄O₂232.24
21054-67-13-(5-Phenyl-2H-tetraazol-2-yl)propanoic acidC₁₀H₁₀N₄O₂218.22
21054-69-35-Phenyl-2H-tetrazole-2-butanoic acidC₁₁H₁₂N₄O₂232.24
21054-72-81H-Imidazolium, 1-dodecyl-2-methyl-3-(phenylmethyl)-, chloride (1:1)C₂₃H₃₇ClN₂377.02
2105487-16-7Methyl 2-methyl-4,5,6,7-tetrahydro-2H-indazole-7-carboxylateC₁₀H₁₄N₂O₂194.23
21055-30-1Benzenecarboximidamide, 4,4'-iminobis-, dihydrochlorideC₁₄H₁₇Cl₂N₅326.23
21055-37-8Methyl 2-isothiocyanatoacetateC₄H₅NO₂S131.16
21055-39-0Methyl 2-isothiocyanatopropanoateC₅H₇NO₂S145.18
21055-41-4Methyl N-(sulfanylidenemethylidene)-L-valinateC₇H₁₁NO₂S173.24
21055-43-6(2s)-2-Isothiocyanato-4-methyl-pentanoic acid methyl esterC₈H₁₃NO₂S187.26
21055-46-9Methyl 2-isothiocyanato-3-phenylpropanoateC₁₁H₁₁NO₂S221.28
21055-47-0Methyl 2-isothiocyanato-4-(methylthio)butyrateC₇H₁₁NO₂S₂205.30
210551-80-76-(Methylamino)pyridin-2-olC₆H₈N₂O124.14
210552-07-1N-Methyl-3-thiophenemethanamineC₆H₉NS127.21
210552-24-26-Hydroxy-1,3,3-trimethyl-2,3-dihydro-1H-indol-2-oneC₁₁H₁₃NO₂191.23
2105567-91-51-(2,2-Difluoroethyl)-5-methyl-1H-pyrazol-4-amineC₆H₉F₂N₃161.16
210558-66-01-Phenyl-2-(pyrrolidin-1-yl)propan-1-ol hydrochloride, (1R,2S)-C₁₃H₂₀ClNO241.76
21056-52-0Benzoyl-I2-d-glucosideC₁₃H₁₆O₇284.26
21056-56-4Methionine sulfoxide, (2R)-C₅H₁₁NO₃S165.21
21056-78-01H-Pyrazole-4-propanamineC₆H₁₁N₃125.17
21056-98-4Calcium phosphiteCaO₃P+119.05
2105612-53-93-Ethynyl-1,4-dimethyl-1H-pyrazoleC₇H₈N₂120.16
2105613-41-81,1-Difluoro-2-methylpent-4-en-2-olC₆H₁₀F₂O136.14
210564-53-7tert-Butyl 2-(3-bromopropyl)piperidine-1-carboxylateC₁₃H₂₄BrNO₂306.24
210564-54-8tert-Butyl 3-(2-bromoethyl)piperidine-1-carboxylateC₁₂H₂₂BrNO₂292.22
21057-14-72,2-Diphenyl-1-(4-phenylpiperazin-1-yl)ethanoneC₂₄H₂₄N₂O356.47
21057-31-8(3,4-Dichlorophenyl)-[4-(2-methoxyphenyl)piperazin-1-yl]methanoneC₁₈H₁₈Cl₂N₂O₂365.26
210576-54-81-(Phenylamino)cyclopropane-1-carboxylic acidC₁₀H₁₁NO₂177.20
210576-58-25-(Bromomethyl)-2-chlorothiazoleC₄H₃BrClNS212.50
210578-56-6Thallium(1+) 2-ethylhexanoateC₈H₁₅O₂Tl347.59
2105781-45-91-(4-Ethoxycyclohexyl)ethan-1-oneC₁₀H₁₈O₂170.25
2105781-96-02-Oxa-5,7-diazaspiro(3.4)octane-6,8-dioneC₅H₆N₂O₃142.11
210580-75-9AL-34662C₁₀H₁₃N₃O191.23
2105823-45-6Methyl 6-fluoro-1-benzofuran-2-carboxylateC₁₀H₇FO₃194.16
2105825-26-9Ethyl 3-hydroxyoxetane-3-carboxylateC₆H₁₀O₄146.14
210584-54-6Amustaline dihydrochlorideC₂₂H₂₇Cl₄N₃O₂507.29
210587-74-91-(Bromomethyl)-2-(2-methylpropyl)benzeneC₁₁H₁₅Br227.15
21059-42-7Methyl 3alpha-[(ethoxycarbonyl)oxy]-7,12-dioxo-5beta-cholan-24-oateC₂₈H₄₂O₇490.64
21059-47-2BucharaineC₁₉H₂₅NO₄331.41
2105904-82-1QuemliclustatC₂₀H₂₄ClFN₄O₉P₂580.83
2105909-63-35-(Ethoxycarbonyl)-4-methoxy-2-methylbenzoic acidC₁₂H₁₄O₅238.24
2106-00-52,4,5-Trifluoro-6-nitrobenzene-1,3-diamineC₆H₄F₃N₃O₂207.11
2106-02-7Benzenamine, 2-chloro-4-fluoro-C₆H₅ClFN145.56
2106-04-93-Chloro-2-fluoroanilineC₆H₅ClFN145.56
2106-05-05-Chloro-2-fluoroanilineC₆H₅ClFN145.56
2106-10-7Glucosyl fluorideC₆H₁₁FO₅182.15
2106-18-51-Fluoro-2-(trifluoromethoxy)benzeneC₇H₄F₄O180.10
2106-40-31-Chloro-2,4,6-trifluorobenzeneC₆H₂ClF₃166.53
2106-41-41,3-Difluoro-2,4-dinitrobenzeneC₆H₂F₂N₂O₄204.09
2106-49-21-Chloro-2-fluoro-3-nitrobenzeneC₆H₃ClFNO₂175.55
2106-50-52-Chloro-4-fluoro-1-nitrobenzeneC₆H₃ClFNO₂175.55
2106-54-93,5,6-Trichloroperfluorohexanoic acidC₆HCl₃F₈O₂363.42
2106-73-24,4,4-Trifluorobutane-1,2-diolC₄H₇F₃O₂144.09
21061-10-9Methyl dihomo-gamma-linolenateC₂₁H₃₆O₂320.52
21062-20-4Oxydiacetyl dichlorideC₄H₄Cl₂O₃170.98
2106254-15-1Ethyl 2-{3-bromoimidazo[1,2-a]pyridin-2-yl}acetateC₁₁H₁₁BrN₂O₂283.13
210631-68-8TopramezoneC₁₆H₁₇N₃O₅S363.39
210637-17-5Corchorusoside CC₃₅H₅₄O₁₃682.80
210639-69-32-(1H-Benzimidazol-2-yl)-1-(5-ethyl-2,4-dihydroxyphenyl)ethanoneC₁₇H₁₆N₂O₃296.33
210639-80-83-(1H-Benzimidazol-2-yl)-6-ethyl-7-hydroxy-4H-chromen-4-oneC₁₈H₁₄N₂O₃306.32
210639-84-26-Ethyl-7-hydroxy-3-(1-methyl-1H-benzimidazol-2-yl)-2-(trifluoromethyl)-4H-chromen-4-oneC₂₀H₁₅F₃N₂O₃388.35
210639-90-03570-0208 [Pmid:19807662]C₂₂H₂₀N₂O₄376.41
210639-92-26-Ethyl-7-hydroxy-2-methyl-3-(1-methyl-1H-1,3-benzodiazol-2-yl)-4H-chromen-4-oneC₂₀H₁₈N₂O₃334.38

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