CAS number index

CAS numbers starting with 21, page 51

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

Showing 5,001 to 5,100 of 8,045 chemicals

CAS numberChemical nameFormulaMol. weight

2163-69-1CycluronC₁₁H₂₂N₂O198.31
2163-77-14-Hydroxy-3-aminophenylarsonic acidC₆H₈AsNO₄233.06
2163-80-6Monosodium methanearsonateCH₄AsNaO₃161.95
21630-48-82-Benzylamino-5-nitropyridineC₁₂H₁₁N₃O₂229.24
216300-82-28-Methyl-6-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazineC₇H₅F₃N₄202.14
2163056-91-3BI-1347C₂₂H₂₀N₄O356.43
216308-19-92-(5-{4-[Amino(Imino)methyl]phenyl}-2-furyl)-1H-benzimidazole-5-carboximidamideC₁₉H₁₆N₆O344.38
216308-21-31H-Benzimidazole-5-carboximidamide, 2-(5-(4-(amino((1-methylethyl)imino)methyl)phenyl)-2-furanyl)-N-(1-methylethyl)-C₂₅H₂₈N₆O428.54
216308-23-51H-Benzimidazole, 5-(4,5-dihydro-1H-imidazol-2-yl)-2-[5-[4-(4,5-dihydro-1H-imidazol-2-yl)phenyl]-2-furanyl]-C₂₃H₂₀N₆O396.45
21631-62-95-Acetyl-1,3-bis(4-fluorophenyl)-5-methylimidazolidine-2,4-dioneC₁₈H₁₄F₂N₂O₃344.32
21631-66-35-Acetyl-5-methyl-1,3-bis(4-methylphenyl)imidazolidine-2,4-dioneC₂₀H₂₀N₂O₃336.39
216312-73-13,6-Dibromo-9H-fluoren-9-one216312-73-1C₁₃H₆Br₂O338.00
21633-59-0N-(4-Oxo-2-sulfanylidene-1,3-thiazolidin-3-yl)acetamideC₅H₆N₂O₂S₂190.25
21634-52-6Hibiscetin heptamethyl etherC₂₂H₂₄O₉432.43
21634-97-9Difluoro(2,3,4-trifluorophenyl)methyl propanoateC₁₀H₇F₅O₂254.15
2163418-28-6rac-(2R,3S)-2-(1H-1,2,4-Triazol-5-yl)oxolan-3-amineC₆H₁₀N₄O154.17
21635-88-13-OxetanamineC₃H₇NO73.09
21635-90-5TetracyclododeceneC₁₂H₁₆160.26
21636-25-9Benzo[b][1,4]benzoxazepin-6-amineC₁₃H₁₀N₂O210.24
21636-40-811-(Piperazin-1-yl)dibenzo(b,f)(1,4)oxazepineC₁₇H₁₇N₃O279.34
2163641-52-7Methyl 2-[2-(dimethylamino)ethyl]pyrrolidine-1-carboxylateC₁₀H₂₀N₂O₂200.28
21637-25-2IsoquercitrinC₂₁H₂₀O₁₂464.38
2163705-79-91-(1-Methylcyclobutyl)ethan-1-amineC₇H₁₅N113.20
2163756-80-5tert-Butyl 6-(iodomethyl)-5-oxa-2-azaspiro(3.5)nonane-2-carboxylateC₁₃H₂₂INO₃367.23
21638-13-13-Methyl-1-azabicyclo[2.2.2]octan-3-amineC₈H₁₆N₂140.23
21638-14-23-Methyl-1-azabicyclo[2.2.2]octan-3-amine dihydrochlorideC₈H₁₈Cl₂N₂213.15
21638-36-8NifurimideC₉H₁₀N₄O₄238.20
21638-90-4Methyl 8-hydroxyquinoline-2-carboxylateC₁₁H₉NO₃203.20
2163825-03-2tert-Butyl 3-(bromomethylidene)pyrrolidine-1-carboxylateC₁₀H₁₆BrNO₂262.15
2163842-61-12-((1-Carboxyethyl)amino)-3-methylbutanoic acidC₈H₁₅NO₄189.21
216387-14-3Styelsamine BC₁₉H₁₇N₃O₂319.36
21639-05-42-[(Phenoxycarbonyl)amino]acetic acidC₉H₉NO₄195.17
21639-28-12-(Methylamino)benzene-1-sulfonamideC₇H₁₀N₂O₂S186.24
21639-39-42H-1,2,3-Benzothiadiazine-1,1-dioneC₇H₆N₂O₂S182.20
21639-41-8o-Formylbenzenesulfonyl chlorideC₇H₅ClO₃S204.63
216391-10-5N-(2,3-Dihydro-benzo[1,4]dioxin-2-ylmethyl)-acetamideC₁₁H₁₃NO₃207.23
216392-97-1(1R,2R,6S,7S)-4-Hydroxy-4-azatricyclo[5.2.1.02,6]dec-8-ene-3,5-dioneC₉H₉NO₃179.18
216393-55-4Methyl 3,5-difluorobenzoateC₈H₆F₂O₂172.13
216393-56-53-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]benzenethiolC₁₂H₂₀OSSi240.44
216393-63-45-Isopropyl-2-methoxyphenylboronic acidC₁₀H₁₅BO₃194.04
216393-64-54-Bromo-2-fluorobenzeneboronic acidC₆H₅BBrFO₂218.82
216393-66-71,2,5-Trichloro-3-iodobenzeneC₆H₂Cl₃I307.35
216393-67-84-Chloro-2-fluoro-6-iodoanilineC₆H₄ClFIN271.46
216394-04-6(E)-(4-(2-Nitrovinyl)phenyl)boronic acidC₈H₈BNO₄192.97
216394-05-75-Bromo-6-chloropyridine-3-sulfonyl chlorideC₅H₂BrCl₂NO₂S290.95
216394-06-8(1R,2R)-trans-2-Benzyloxy-cyclohexylamineC₁₃H₁₉NO205.30
216394-07-9(1S,2S)-trans-2-Benzyloxy-cyclohexylamineC₁₃H₁₉NO205.30
216394-11-52-Methoxy-4-methylbenzene-1-sulfonyl chlorideC₈H₉ClO₃S220.68
2164-07-0Endothal dipotassium saltC₈H₈K₂O₅262.34
2164-08-1LenacilC₁₃H₁₈N₂O₂234.30
2164-09-2ChloranocrylC₁₀H₉Cl₂NO230.09
2164-17-2FluometuronC₁₀H₁₁F₃N₂O232.21
2164-33-22-(Chloromethyl)-2,3-dihydro-1,4-benzodioxinC₉H₉ClO₂184.62
2164-34-32-Bromomethyl-1,4-benzodioxaneC₉H₉BrO₂229.07
2164-42-3Benzyl-(2,3-dihydro-benzo[1,4]dioxin-2-ylmethyl)-amineC₁₆H₁₇NO₂255.32
2164-61-6Pyridazine-3-carboxylic acidC₅H₄N₂O₂124.10
2164-65-02-Aminopyrimidine-4-carboxylic acidC₅H₅N₃O₂139.11
2164-66-14-Pyrimidinecarboxylic acid, 2-amino-, methyl esterC₆H₇N₃O₂153.14
2164-67-24-Pyrimidinemethanol, 2-amino-C₅H₇N₃O125.13
2164-83-24(3H)-Pyrimidinone, 6-hydroxy-5-nitro-C₄H₃N₃O₄157.09
2164-84-34,6-Diamino-5-nitropyrimidineC₄H₅N₅O₂155.12
2164-93-4Methyl 2-(3-benzylureido)benzoateC₁₆H₁₆N₂O₃284.31
2164-94-52-[[Anilino(oxo)methyl]amino]-N-(phenylmethyl)benzamideC₂₁H₁₉N₃O₂345.40
2164-95-62-(Phenylcarbamoylamino)benzoic acidC₁₄H₁₂N₂O₃256.26
21640-31-32-Benzyl-1,3(2H,4H)-isoquinolinedioneC₁₆H₁₃NO₂251.28
21640-33-52-Methylisoquinoline-1,3,4(2H)-trioneC₁₀H₇NO₃189.17
21640-47-13-(3-Chlorophenyl)propanenitrileC₉H₈ClN165.62
21640-48-23-(3-Chlorophenyl)propanoic acidC₉H₉ClO₂184.62
2164034-60-83-Aminopyrrolidine-1-carbonitrileC₅H₉N₃111.15
21641-92-9(2S)-2-Hydroxy-3,3-dimethylbutanoic acidC₆H₁₂O₃132.16
21642-98-83-Pyridinecarbonitrile, 1,2-dihydro-4-methoxy-2-oxo-C₇H₆N₂O₂150.14
21643-32-3Magnesium di(hexanolate)C₁₂H₂₆MgO₂226.64
21643-38-94-Hexylbenzoic acidC₁₃H₁₈O₂206.28
21643-42-5Tetradecyl acrylateC₁₇H₃₂O₂268.44
216431-85-55-Cyano-2-(trifluoromethyl)pyridineC₇H₃F₃N₂172.11
216434-82-1Potassium p-tolyltrifluoroborateC₇H₇BF₃K198.04
2164355-37-51,1-Difluoro-2-methyl-3-(oxiran-2-yl)propan-2-olC₆H₁₀F₂O₂152.14
2164359-01-53-(2,2-Difluoroethoxy)prop-1-yneC₅H₆F₂O120.10
2164373-26-42-Iodo-5H,6H,8H-imidazo(2,1-c)(1,4)oxazineC₆H₇IN₂O250.04
216439-38-2Benzenesulfonic acid, 4-[2-[1-[[(2-methoxyphenyl)amino]carbonyl]-2-oxopropyl]diazenyl]-3-nitro-, sodium salt (1:1)C₁₇H₁₅N₄NaO₈S458.38
216439-76-8(S)-2-(tert-Butoxycarbonylamino)-3-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]propanoic acidC₂₀H₃₀BNO₆391.27
216443-17-32-(3-Methylphenyl)benzaldehydeC₁₄H₁₂O196.25
216443-25-33'-Chlorobiphenyl-2-carbaldehydeC₁₃H₉ClO216.67
216443-78-63-(3-Methylphenyl)benzaldehydeC₁₄H₁₂O196.25
216443-95-7Methyl 4-ethynyl-2-methylbenzoateC₁₁H₁₀O₂174.20
2164473-56-5tert-Butyl N-((1-(bromomethyl)cyclobutyl)methyl)carbamateC₁₁H₂₀BrNO₂278.19
21645-26-1Thiourea, N,N-diethyl-N'-2-propen-1-yl-C₈H₁₆N₂S172.30
21645-51-2Aluminum hydroxideH₃AlO₃78.00
216450-65-6SophoflavescenolC₂₁H₂₀O₆368.38
21646-00-4N-Acetyl-alpha-D-neuraminic acidC₁₁H₁₉NO₉309.27
21646-20-84,4'-Methylenebis(aniline), compound with sodium chloride (3:1)C₃₉H₄₂ClN₆Na653.25
21646-92-44-Amino-N,N-dipropylbenzenesulfonamideC₁₂H₂₀N₂O₂S256.37
21646-99-1Tetraethyl pyrophosphiteC₈H₂₀O₅P₂258.19
2164785-38-81-(Methoxymethyl)-2,2-dimethylcyclopropane-1-carbaldehydeC₈H₁₄O₂142.20
216483-12-44-Methyl-N'-(4-nitrobenzoyl)benzohydrazideC₁₅H₁₃N₃O₄299.29
216485-86-83-Isopropoxybenzeneboronic acidC₉H₁₃BO₃180.01
2164867-54-12-(3-(((tert-Butoxy)carbonyl)amino)-1,1-dioxo-1lambda6-thiolan-3-yl)acetic acidC₁₁H₁₉NO₆S293.34
21649-57-0Carbenicillin phenyl sodiumC₂₃H₂₁N₂NaO₆S476.49
2164953-43-7tert-Butyl N-({5-oxa-2-azaspiro[3.4]octan-6-yl}methyl)carbamateC₁₂H₂₂N₂O₃242.32
216498-95-2BolinaquinoneC₂₂H₃₀O₄358.48

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