CAS number index

CAS numbers starting with 21, page 54

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

Showing 5,301 to 5,400 of 8,045 chemicals

CAS numberChemical nameFormulaMol. weight

2166816-79-93a-Methyl-3aH,4H,5H,6H-1lambda6-pyrrolo(1,2-b)(1,2)thiazole-1,1-dioneC₇H₁₁NO₂S173.24
2166827-13-81-Bromo-3-chloro-2-fluoro-4-(trifluoromethoxy)benzeneC₇H₂BrClF₄O293.44
2166831-34-93-(Methoxycarbonyl)-3-methylcyclobutane-1-carboxylic acidC₈H₁₂O₄172.18
2166847-05-6(4-(Propan-2-yl)-1H-pyrazol-5-yl)methanamineC₇H₁₃N₃139.20
2166848-89-96-Oxo-5-azaspiro(3.4)octane-2-carboxylic acidC₈H₁₁NO₃169.18
2166849-51-87-Fluorobicyclo[4.1.0]heptane-7-carboxylic acidC₈H₁₁FO₂158.17
216685-07-35-(3-Hydroxypropylsulfanyl)-3-methyl-1-(2-methylpropyl)-6-(naphthalen-1-ylmethyl)thieno[2,3-d]pyrimidine-2,4-dioneC₂₅H₂₈N₂O₃S₂468.64
2166852-20-42-(Oxan-2-yl)oxolane-2-carboxylic acidC₁₀H₁₆O₄200.23
2166854-35-73-(4,4-Difluorocyclohexyl)-2-oxopropanoic acidC₉H₁₂F₂O₃206.19
2166859-16-94-Formylpyridine-2-sulfonamideC₆H₆N₂O₃S186.19
2166861-81-84-Amino-2-chloro-5-fluorobenzoic acidC₇H₅ClFNO₂189.57
2166865-52-56-(Aminomethyl)-3,3-difluoropiperidin-2-oneC₆H₁₀F₂N₂O164.16
2166870-78-43-(Oxiran-2-yl)oxolan-3-olC₆H₁₀O₃130.14
2166877-66-13-(2-Bromoethyl)-1,1,2,2-tetramethylcyclopropaneC₉H₁₇Br205.14
2166878-56-24-Bromo-2-(trifluoromethyl)furanC₅H₂BrF₃O214.97
2166886-51-54-Azido-2-bromopyridineC₅H₃BrN₄199.01
2166893-36-13-Chloro-5-(methoxymethyl)benzaldehydeC₉H₉ClO₂184.62
216690-19-64-(4-Fluorophenyl)-3-piperidinemethanolC₁₂H₁₆FNO209.26
2166902-76-52-(4-Chloro-3-methylphenyl)-2,2-difluoroacetic acidC₉H₇ClF₂O₂220.60
216691-95-1Bz-423C₂₇H₂₁ClN₂O₂440.93
2166915-02-0MexedroneC₁₂H₁₇NO₂207.27
2166921-82-83-(4-Oxocyclohexyl)prop-2-ynoic acidC₉H₁₀O₃166.18
2166926-31-2tert-Butyl 7-(aminomethyl)-1,4-oxazepane-4-carboxylateC₁₁H₂₂N₂O₃230.31
2166929-18-42-Cyano-2-(oxan-4-yl)ethane-1-sulfonyl chlorideC₈H₁₂ClNO₃S237.71
2166932-57-48-[3-(Methoxymethyl)-1,2,4-oxadiazol-5-yl]-2-oxa-6-azaspiro[3.4]octaneC₁₀H₁₅N₃O₃225.25
2166932-60-9Pyrazolo[1,5-c]pyrimidine-5-carboxylic acidC₇H₅N₃O₂163.14
2166932-74-5(3-Oxaspiro(bicyclo(3.1.0)hexane-2,1'-cyclobutane)-1-yl)methanolC₉H₁₄O₂154.21
2166947-04-0(3,3-Difluoro-1-methylcyclobutyl)methanesulfonyl chlorideC₆H₉ClF₂O₂S218.65
2166949-71-7tert-Butyl N-(1-((chlorosulfonyl)methyl)cyclopropyl)carbamateC₉H₁₆ClNO₄S269.75
2166957-30-66-Ethoxy-2-fluoro-3-nitrobenzonitrileC₉H₇FN₂O₃210.16
2166964-71-0(2,2-Difluorospiro(2.3)hexan-1-yl)methanamineC₇H₁₁F₂N147.17
2166965-54-26-Formyl-1H-indole-3-sulfonamideC₉H₈N₂O₃S224.24
216698-07-6Acetoxytetramethylbutylphenyl tetramethylbutylbenzofuranoneC₃₂H₄₄O₄492.70
216699-07-9ZiagenC₁₄H₂₀N₆O₅S384.42
216699-35-35-Carboxy-X-rhodamineC₃₃H₃₀N₂O₅534.61
216699-36-46-Carboxy-X-rhodamine N-succinimidyl esterC₃₇H₃₃N₃O₇631.68
216699-86-42-Chloro-6,7-dimethoxyquinoxalineC₁₀H₉ClN₂O₂224.65
216699-96-64-(6,7-Dimethoxy-quinoxalin-2-ylamino)-cyclohexanolC₁₆H₂₁N₃O₃303.36
2166992-67-05-(Prop-2-yn-1-yl)-4lambda6-thia-5-azaspiro(2.5)octane-4,4-dioneC₉H₁₃NO₂S199.28
2166993-49-1tert-Butyl N-(4-(chlorosulfonyl)butan-2-yl)carbamateC₉H₁₈ClNO₄S271.77
2166993-72-07-Bromo-1-chloroisoquinoline-3-carbonyl chlorideC₁₀H₄BrCl₂NO304.96
2166997-97-13-Oxabicyclo(4.1.0)heptane-6-carboxylic acidC₇H₁₀O₃142.15
2167-14-81-Ethyl-2-pyrrolecarboxaldehydeC₇H₉NO123.16
2167-23-92,2-Bis(tert-butylperoxy)butaneC₁₂H₂₆O₄234.34
2167-39-72-MethyloxetaneC₄H₈O72.11
2167-51-3Bisphenol PC₂₄H₂₆O₂346.47
2167-85-3PipazethateC₂₁H₂₅N₃O₃S399.52
216700-84-4N-(2-Aminophenyl)-4-fluorobenzene-1-sulfonamideC₁₂H₁₁FN₂O₂S266.30
216700-85-53,5-Diethyl-isoxazole-4-carboxylic acidC₈H₁₁NO₃169.18
2167003-55-4tert-Butyl 1-(bromomethyl)cyclopentane-1-carboxylateC₁₁H₁₉BrO₂263.18
2167008-07-1(3-Cyclopropylcyclobutyl)methanesulfonyl chlorideC₈H₁₃ClO₂S208.71
2167010-06-0tert-Butyl 5-oxa-2,8-diazaspiro(3.4)octane-2-carboxylateC₁₀H₁₈N₂O₃214.26
2167028-08-0{6-Azabicyclo[3.2.1]octan-5-yl}methanolC₈H₁₅NO141.21
2167033-26-1Methyl 3-formyl-4,5,6,7-tetrahydro-2H-isoindole-1-carboxylateC₁₁H₁₃NO₃207.23
2167041-68-91-(Iodomethyl)-4-methyl-2-oxabicyclo[2.1.1]hexaneC₇H₁₁IO238.07
2167059-41-6Methyl 2-(3-bromocyclopentyl)acetateC₈H₁₃BrO₂221.09
2167060-39-9N-tert-Butyl-1-(oxiran-2-yl)cyclopropane-1-sulfonamideC₉H₁₇NO₃S219.31
2167070-91-72-{4-[(tert-Butoxy)carbonyl]-6-methylmorpholin-2-yl}acetic acidC₁₂H₂₁NO₅259.30
2167072-13-95-(2-Methylpropanesulfonyl)pyridin-2-amineC₉H₁₄N₂O₂S214.29
2167076-37-9tert-Butyl N-ethyl-N-(2-(fluorosulfonyl)ethyl)carbamateC₉H₁₈FNO₄S255.31
2167082-46-21-{1-Azabicyclo[3.2.1]octan-6-yl}methanamineC₈H₁₆N₂140.23
2167084-66-21,1-Dioxo-1lambda6,2-thiazinane-6-carboxylic acidC₅H₉NO₄S179.20
21671-00-1Shoreic acidC₃₀H₅₀O₄474.73
21671-21-6N-PhenylvalineC₁₁H₁₅NO₂193.25
2167110-88-38-Bromo-7-fluoro-3-methylisoquinolineC₁₀H₇BrFN240.07
2167111-82-03-(Trifluoromethyl)bicyclo[1.1.1]pentane-1-sulfonyl chlorideC₆H₆ClF₃O₂S234.63
2167113-18-82,2-Dimethylcyclopropane-1-sulfonyl chlorideC₅H₉ClO₂S168.65
2167116-33-61-[(tert-Butyldimethylsilyl)oxy]-1-cyclopropylbut-3-en-2-oneC₁₃H₂₄O₂Si240.42
2167124-76-52-Bromo-3-hydrazinylpyrazineC₄H₅BrN₄189.02
2167138-29-44-(Methylthio)-3-(trifluoromethyl)benzoic acidC₉H₇F₃O₂S236.21
2167142-20-14-(Difluoromethyl)-1H-indole-2-carboxylic acidC₁₀H₇F₂NO₂211.17
2167159-22-8tert-Butyl 3-ethynyl-3-methoxypyrrolidine-1-carboxylateC₁₂H₁₉NO₃225.29
2167163-78-03-(Chloromethyl)-1,5-dimethyl-1H-pyrazole-4-sulfonamideC₆H₁₀ClN₃O₂S223.69
2167179-03-34-Phenylbicyclo(2.1.1)hexane-1-carboxylic acidC₁₃H₁₄O₂202.25
2167179-42-02-{2-Oxabicyclo[2.1.1]hexan-1-yl}ethan-1-amineC₇H₁₃NO127.19
2167187-51-91,1-Difluoro-7-methyl-4-oxaspiro(2.4)heptane-7-carboxylic acidC₈H₁₀F₂O₃192.16
2167190-21-6tert-Butyl 3-(3-oxocyclobutyl)azetidine-1-carboxylateC₁₂H₁₉NO₃225.29
2167194-89-84-Methoxy-1-methyl-1H-pyrazole-3-carbaldehydeC₆H₈N₂O₂140.14
2167198-38-9Spiro[2.3]hexane-1-sulfonyl chlorideC₆H₉ClO₂S180.66
2167205-34-51-[2-Amino-4-(trifluoromethyl)-1,3-thiazol-5-yl]-2,2,2-trifluoroethan-1-oneC₆H₂F₆N₂OS264.15
2167211-34-7tert-Butyl 7-hydroxy-1-azaspiro(3.5)nonane-1-carboxylateC₁₃H₂₃NO₃241.33
2167233-72-7tert-Butyl 8-amino-2-azadispiro[3.1.3^{6}.1^{4}]decane-2-carboxylateC₁₄H₂₄N₂O₂252.36
2167234-97-93-({[(tert-Butoxy)carbonyl]amino}methyl)-3-hydroxycyclobutane-1-carboxylic acid, mixture of diastereomersC₁₁H₁₉NO₅245.28
2167246-24-2RimtuzalcapC₁₈H₂₄F₂N₆O378.43
2167257-58-92-{[3-(Trifluoromethyl)oxetan-3-yl]oxy}acetic acidC₆H₇F₃O₄200.11
2167258-76-43-Bromo-2-chloro-6-(trifluoromethoxy)benZaldehydeC₈H₃BrClF₃O₂303.46
2167274-52-24,4-Difluoro-3-methoxycyclohexan-1-oneC₇H₁₀F₂O₂164.15
2167277-66-75-(Chloromethyl)-1,3-dimethylpyrazole-4-sulfonyl chlorideC₆H₈Cl₂N₂O₂S243.12
2167283-13-62-Methoxy-5-propyl-4H,7H-(1,2,4)triazolo(1,5-a)pyrimidin-7-oneC₉H₁₂N₄O₂208.22
2167290-46-0(3-Oxoheptyl)phosphonic acidC₇H₁₅O₄P194.17
2167300-93-63-(1,3-Dioxolan-2-yl)benzene-1-sulfonyl chlorideC₉H₉ClO₄S248.69
2167303-61-73-Amino-2-(4,4-difluorocyclohexyl)propan-1-olC₉H₁₇F₂NO193.24
2167305-00-0tert-Butyl N-{8-amino-5-oxaspiro[3.5]nonan-2-yl}carbamateC₁₃H₂₄N₂O₃256.35
2167308-58-7Methyl 1H,4H,5H,6H,7H-pyrazolo(4,3-b)pyridine-6-carboxylateC₈H₁₁N₃O₂181.19
2167321-48-22-Bromo-6-iodo-4-(trifluoromethoxy)phenolC₇H₃BrF₃IO₂382.90
2167326-05-61-tert-Butyl 3-methyl 3-formylazetidine-1,3-dicarboxylateC₁₁H₁₇NO₅243.26
2167336-19-6Bicyclo(1.1.1)pentane-1-sulfonyl chlorideC₅H₇ClO₂S166.63
2167346-67-84-Methoxy-2,8,14-triazatricyclo(8.4.0.0,2,6)tetradeca-1(14),10,12-trieneC₁₂H₁₇N₃O219.29
2167346-89-41-(Bicyclo(1.1.1)pentan-1-yl)piperazineC₉H₁₆N₂152.24
2167364-89-64-(4-Chlorophenyl)-2-oxabicyclo(2.1.1)hexane-5-carboxylic acidC₁₂H₁₁ClO₃238.67

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