CAS number index

CAS numbers starting with 20

7,121 chemicals have a CAS number that starts with 20. They are listed in CAS order.

Showing 1 to 100 of 7,121 chemicals

CAS numberChemical nameFormulaMol. weight

200-23-7Benzo(kl)xantheneC₁₆H₁₀O218.25
2000-43-32,2,2-Trichloro-1-phenylethanolC₈H₇Cl₃O225.50
2000-54-61-(3-Nitrophenyl)-3-phenylureaC₁₃H₁₁N₃O₃257.25
2000-55-73-Phenyl-1-(pyridin-3-yl)ureaC₁₂H₁₁N₃O213.24
2000-66-0IsoprogesteroneC₂₁H₃₀O₂314.47
20000-05-91-(1-Methyl-1H-1,3-benzodiazol-2-yl)ethan-1-amine dihydrochlorideC₁₀H₁₅Cl₂N₃248.16
20000-08-23-[2-(1,3-Dioxoisoindol-2-yl)ethyl]-1,3-diazaspiro[4.5]decane-2,4-dioneC₁₈H₁₉N₃O₄341.37
20000-53-7Methyl 4-(benzoxazol-2-yl)benzoateC₁₅H₁₁NO₃253.26
20000-61-72-(3-Fluorophenyl)-1,3-benzoxazoleC₁₃H₈FNO213.21
20000-80-02-(3,5-Dimethyl-1H-pyrazol-1-yl)ethan-1-olC₇H₁₂N₂O140.19
20000-96-85-(2-Nitrophenyl)-2-furaldehydeC₁₁H₇NO₄217.18
2000002-78-61-Bromo-4-ethynyl-2,3-difluorobenzeneC₈H₃BrF₂217.01
200001-63-43-Chloro-6-(2-fluorobenzyl)pyridazineC₁₁H₈ClFN₂222.65
2000011-12-9tert-Butyl N-[2-(2,4-difluorophenyl)-2-oxoethyl]carbamateC₁₃H₁₅F₂NO₃271.26
200004-38-24,4',4''-Trifluorotrityl bromideC₁₉H₁₂BrF₃377.20
200006-08-2ALX 5407 hydrochlorideC₂₄H₂₅ClFNO₃429.92
200007-73-4MulticaulinC₂₀H₂₂O278.39
200007-74-5MultiorthoquinoneC₂₀H₂₀O₃308.38
20001-64-31-Chloro-2-(1-chloroethyl)benzeneC₈H₈Cl₂175.06
20001-65-41-Chloro-4-(1-chloroethyl)benzeneC₈H₈Cl₂175.06
2000175-42-62-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-cyclopropyl-4-methoxybutanoic acidC₂₃H₂₅NO₅395.45
2000289-18-7(1-Chloronaphthalen-2-yl)boronicacidC₁₀H₈BClO₂206.44
20004-62-0ResistomycinC₂₂H₁₆O₆376.36
200049-46-37-Bromo-2,3-dihydro-1H-isoindol-1-oneC₈H₆BrNO212.05
20005-05-42-Hydroxy-N-[[5-(3-nitrophenyl)furan-2-yl]methylideneamino]benzamideC₁₈H₁₃N₃O₅351.32
20005-32-72-(Oxolan-2-yl)acetaldehydeC₆H₁₀O₂114.14
20005-42-95-(4-Bromophenyl)-2-furaldehydeC₁₁H₇BrO₂251.08
200052-70-64-(Dicyanomethylene)-2-tert-butyl-6-(1,1,7,7-tetramethyljulolidin-4-yl-vinyl)-4H-pyranC₃₀H₃₅N₃O453.63
200055-26-1Spiro[2.5]octane-1-carbaldehydeC₉H₁₄O138.21
200055-30-7{Spiro[2.5]octan-1-yl}methanolC₉H₁₆O140.23
200058-56-61-Cyclohexyl-3-(2,6-diethylphenyl)ureaC₁₇H₂₆N₂O274.41
200058-74-81-Cyclohexyl-3-(2-ethyl-6-methylphenyl)-1-methylureaC₁₇H₂₆N₂O274.41
200058-87-31-Cyclohexyl-3-(furan-2-ylmethyl)ureaC₁₂H₁₈N₂O₂222.29
20006-47-74H-3,1-Benzoxazin-4-one, 6,6'-methylenebis[2-methyl-C₁₉H₁₄N₂O₄334.33
200060-89-53,3'-(4-Isopropylbenzylidene)bis(4-hydroxycoumarin)C₂₈H₂₂O₆454.48
200062-20-05-Methoxy-1-methyl-1H-indole-2-carbohydrazideC₁₁H₁₃N₃O₂219.24
200064-11-54-(5-Bromopyridin-2-yl)morpholineC₉H₁₁BrN₂O243.10
200064-13-74-(5-Bromopyridin-3-yl)morpholineC₉H₁₁BrN₂O243.10
200064-39-74-(3-Bromopyridin-4-yl)morpholineC₉H₁₁BrN₂O243.10
20007-72-1(±)-Wieland-Miescher ketoneC₁₁H₁₄O₂178.23
20007-85-6CyclopenolC₁₇H₁₄N₂O₄310.31
20007-87-8CyclopeninC₁₇H₁₄N₂O₃294.31
200071-78-92-(3-Amino-1H-isoindol-1-ylidene)-3-oxo-3-(piperidin-1-yl)propanenitrileC₁₆H₁₆N₄O280.33
2000740-67-8tert-Butyl 4-(chloromethyl)-4-methoxypiperidine-1-carboxylateC₁₂H₂₂ClNO₃263.76
20008-04-23,4-Didehydroretinyl acetateC₂₂H₃₀O₂326.48
2000827-52-9Dimethyl(2-(piperidin-2-yl)propyl)amineC₁₀H₂₂N₂170.30
2000852-61-7tert-Butyl 3-(bromomethyl)-3-methoxypyrrolidine-1-carboxylateC₁₁H₂₀BrNO₃294.19
20009-20-5Cyclohexanemethanol, 4-(acetyloxy)-alpha,alpha,4-trimethyl-, 1-acetateC₁₄H₂₄O₄256.34
20009-26-11-PropoxynaphthaleneC₁₃H₁₄O186.25
20009-28-32-(2-Propynyloxy)naphthaleneC₁₃H₁₀O182.22
2001-23-21-(1,1'-Biphenyl)-4-yl-2-phenylethan-1-oneC₂₀H₁₆O272.35
2001-28-71-(4-Methylphenyl)-2-phenylethan-1-oneC₁₅H₁₄O210.28
2001-29-81-(4-Bromophenyl)-2-phenylethanoneC₁₄H₁₁BrO275.14
2001-32-33-(2-Nitrophenyl)propionic acidC₉H₉NO₄195.17
2001-45-8Tetraphenylphosphonium chlorideC₂₄H₂₀ClP374.85
2001-81-2Diponium bromideC₂₀H₃₈BrNO₂404.43
2001-89-0L-Aspartic acid, potassium salt (1:2)C₄H₅K₂NO₄209.28
2001-93-62,4-DithiouracilC₄H₄N₂S₂144.22
2001-94-7Edetate dipotassium anhydrousC₁₀H₁₄K₂N₂O₈368.42
2001-95-8ValinomycinC₅₄H₉₀N₆O₁₈1111.34
2001-96-9p-Nitrophenyl beta-D-xylopyranosideC₁₁H₁₃NO₇271.23
20010-99-5(Pyrazin-2-yl)methanamineC₅H₇N₃109.13
2001029-56-54-(Trichloromethyl)oxan-4-olC₆H₉Cl₃O₂219.50
2001039-78-52,2-Difluoro-1-(6-methoxypyridin-3-yl)ethan-1-oneC₈H₇F₂NO₂187.15
2001079-59-81,6-Dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2-dihydropyridin-2-oneC₁₃H₂₀BNO₃249.12
20011-11-4Piperazine, 1-(3-chlorophenyl)-4-methyl-C₁₁H₁₅ClN₂210.71
20011-17-0[4-(3-Chlorophenyl)piperazin-1-yl]-phenylmethanoneC₁₇H₁₇ClN₂O300.79
20011-90-98-Azatricyclo[9.4.0.0,2,7]pentadeca-1(15),2,4,6,11,13-hexaen-9-oneC₁₄H₁₁NO209.25
200112-55-6(2S)-2-Cyclopentyl-2-hydroxyacetic acidC₇H₁₂O₃144.17
200113-17-31-(4-Methylphenyl)-3-(pyridin-3-ylmethyl)ureaC₁₄H₁₅N₃O241.29
200113-19-52,2,2-Trichloro-N-(pyridin-3-ylmethyl)acetamideC₈H₇Cl₃N₂O253.52
200113-22-0N-(3-Pyridinylmethyl)-N'-[3-(trifluoromethyl)phenyl]ureaC₁₄H₁₂F₃N₃O295.26
200115-71-5N,N-Diethyl-5-methylquinolin-6-amineC₁₄H₁₈N₂214.31
200116-26-35,5-Diethyl-1,3-diphenyl-2-iminobarbituric AcidC₂₀H₂₁N₃O₂335.41
200118-23-6(2R)-2-Fluorocyclohexan-1-oneC₆H₉FO116.14
20012-08-2Sch-12679C₁₉H₂₃NO₂297.40
20012-61-7N-(3-Benzyloxyphenyl)phthalimideC₂₁H₁₅NO₃329.36
20012-62-82-(4-Benzyloxy-phenyl)-isoindole-1,3-dioneC₂₁H₁₅NO₃329.36
20012-63-92-BenzyloxyanilineC₁₃H₁₃NO199.25
2001207-98-12-((4-Fluorophenyl)methyl)oxane-2-carboxylic acidC₁₃H₁₅FO₃238.26
200123-90-6N-(2,4-Dimethylphenyl)methanesulfonamideC₉H₁₃NO₂S199.28
2001245-38-9EthanesulfonoimidamideC₂H₈N₂OS108.17
200125-11-7N-trans-SinapoyltyramineC₁₉H₂₁NO₅343.38
200126-82-54-(4-Ethoxycarbonylanilino)-4-oxobut-2-enoic acidC₁₃H₁₃NO₅263.25
200127-80-63'-MethoxydaidzinC₂₂H₂₂O₁₀446.41
2001279-37-22-(Pyrazin-2-yl)ethane-1-sulfonamideC₆H₉N₃O₂S187.22
20013-23-4IsoscoparinC₂₂H₂₂O₁₁462.41
20013-73-42,6,6-Trimethyl-2-cyclohexen-1-oneC₉H₁₄O138.21
200130-29-62-(Dimethylamino)ethyl naphthalen-1-ylcarbamateC₁₅H₁₈N₂O₂258.32
200132-16-7RefChem:859815C₄₀H₃₉F₅N₄O₇S814.83
200132-54-3O-Allyl-N-(9-anthracenylmethyl)cinchonidinium bromideC₃₇H₃₇BrN₂O605.62
200132-83-8Kasugamycin hydrochloride hydrateC₁₄H₂₈ClN₃O₁₀433.84
200133-92-2Ethyl 4-(3-phenoxypropanamido)benzoateC₁₈H₁₉NO₄313.35
200134-22-11-(4-Ethylphenyl)-3-phenylureaC₁₅H₁₆N₂O240.31
2001343-64-03-Chloro-3,3-difluoropropan-1-olC₃H₅ClF₂O130.52
2001453-18-32,6-Difluoro-N-(2,2,2-trifluoroethyl)pyrimidin-4-amineC₆H₄F₅N₃213.11
20015-46-73,3,4,4,5,5,6,6,7,8,8,8-Dodecafluoro-7-(trifluoromethyl)octan-1-olC₉H₅F₁₅O414.11
20015-70-74-Chloro-5H,6H,7H-pyrimido(4,5-b)(1,4)thiazin-6-oneC₆H₄ClN₃OS201.64
2001571-40-8eCF-309C₁₈H₂₁N₇O₃383.41
20016-85-7(R)-2-Hydroxybutyric acidC₄H₈O₃104.11

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