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Molecular formula

C21H20FNO2

19 compounds have this formula on CompoundList.

Molar mass
337.39g/mol
Monoisotopic mass
337.1478Da
Atoms
45
Elements
5
Rings plus double bonds
12

The formula C21H20FNO2 describes a molecule made of 21 carbon atoms, 20 hydrogen atoms, 1 fluorine atom, 1 nitrogen atom and 2 oxygen atoms. It is written in Hill notation: carbon first, then hydrogen, then the other elements in alphabetical order. The formula tells you which atoms are present, not how they are connected, which is why several different chemicals can share it.

Elemental composition

  • C Carbon × 2174.76%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 205.98%
    1.008 × 20 = 20.160 g/mol
  • F Fluorine × 15.63%
    18.998 × 1 = 18.998 g/mol
  • N Nitrogen × 14.15%
    14.007 × 1 = 14.007 g/mol
  • O Oxygen × 29.48%
    15.999 × 2 = 31.998 g/mol
Look up another formula

Compounds with the formula C21H20FNO2

Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.

Showing 1 to 19 of 19 compounds

5-(4-Fluorophenyl)-3-hydroxy-2-(1,2,3,4-tetrahydroisoquinolin-1-yl)cyclohex-2-en-1-one chemical structure, C21H20FNO2, CAS 338793-13-8
5-(4-Fluorophenyl)-3-hydroxy-2-(1,2,3,4-tetrahydroisoquinolin-1-yl)cyclohex-2-en-1-one
CAS 338793-13-8C21H20FNO2
2-[(Z)-(2-Fluorophenyl)methylidene]-1-azabicyclo[2.2.2]oct-3-yl benzenecarboxylate chemical structure, C21H20FNO2, CAS 477871-46-8
2-[(Z)-(2-Fluorophenyl)methylidene]-1-azabicyclo[2.2.2]oct-3-yl benzenecarboxylate
CAS 477871-46-8C21H20FNO2
Benzofuran-2-yl(3-(4-fluorophenyl)azepan-1-yl)methanone chemical structure, C21H20FNO2, CAS 1797604-73-9
Benzofuran-2-yl(3-(4-fluorophenyl)azepan-1-yl)methanone
CAS 1797604-73-9C21H20FNO2
3-(2-Fluorophenyl)-N-(2-hydroxy-2-(naphthalen-1-yl)ethyl)propanamide chemical structure, C21H20FNO2, CAS 1795084-20-6
3-(2-Fluorophenyl)-N-(2-hydroxy-2-(naphthalen-1-yl)ethyl)propanamide
CAS 1795084-20-6C21H20FNO2
2-(4-tert-Butyl-phenyl)-6-fluoro-3-methyl-quinoline-4-carboxylic acid chemical structure, C21H20FNO2, CAS 130507-39-0
2-(4-tert-Butyl-phenyl)-6-fluoro-3-methyl-quinoline-4-carboxylic acid
CAS 130507-39-0C21H20FNO2
3-[5-(4-Fluorophenyl)-1-(2-phenylethyl)-1H-pyrrol-2-yl]propanoic acid chemical structure, C21H20FNO2, CAS 693795-76-5
3-[5-(4-Fluorophenyl)-1-(2-phenylethyl)-1H-pyrrol-2-yl]propanoic acid
CAS 693795-76-5C21H20FNO2
N-(4-Ethylbenzyl)-4-fluoro-N-(furan-2-ylmethyl)benzamide chemical structure, C21H20FNO2, CAS 873080-33-2
N-(4-Ethylbenzyl)-4-fluoro-N-(furan-2-ylmethyl)benzamide
CAS 873080-33-2C21H20FNO2
2-Fluoro-N-[4-(2-phenoxyethoxy)benzyl]aniline chemical structure, C21H20FNO2, CAS 1040685-97-9
2-Fluoro-N-[4-(2-phenoxyethoxy)benzyl]aniline
CAS 1040685-97-9C21H20FNO2
N-(2-(3-Fluorophenyl)-2-methoxyethyl)-2-(naphthalen-1-yl)acetamide chemical structure, C21H20FNO2, CAS 1797353-44-6
N-(2-(3-Fluorophenyl)-2-methoxyethyl)-2-(naphthalen-1-yl)acetamide
CAS 1797353-44-6C21H20FNO2
8-[3-(4-Fluorophenoxy)benzoyl]-3-methylidene-8-azabicyclo[3.2.1]octane chemical structure, C21H20FNO2, CAS 2320722-96-9
8-[3-(4-Fluorophenoxy)benzoyl]-3-methylidene-8-azabicyclo[3.2.1]octane
CAS 2320722-96-9C21H20FNO2
N-[(Cyclopropylcarbonyl)oxy]-N-{(4-fluorophenyl)[2-(4-methylphenyl)cyclopropyl]methylene}amine chemical structure, C21H20FNO2, CAS 338749-04-5
N-[(Cyclopropylcarbonyl)oxy]-N-{(4-fluorophenyl)[2-(4-methylphenyl)cyclopropyl]methylene}amine
CAS 338749-04-5C21H20FNO2
N-(1-(Benzofuran-2-yl)propan-2-yl)-1-(4-fluorophenyl)cyclopropanecarboxamide chemical structure, C21H20FNO2, CAS 2034610-83-6
N-(1-(Benzofuran-2-yl)propan-2-yl)-1-(4-fluorophenyl)cyclopropanecarboxamide
CAS 2034610-83-6C21H20FNO2
3-Fluoro-8-(9H-xanthene-9-carbonyl)-8-azabicyclo[3.2.1]octane chemical structure, C21H20FNO2, CAS 2309747-13-3
3-Fluoro-8-(9H-xanthene-9-carbonyl)-8-azabicyclo[3.2.1]octane
CAS 2309747-13-3C21H20FNO2
1-Butyl-6-fluoro-3-(4-methylbenzoyl)-1,4-dihydroquinolin-4-one chemical structure, C21H20FNO2, CAS 2640846-04-2
1-Butyl-6-fluoro-3-(4-methylbenzoyl)-1,4-dihydroquinolin-4-one
CAS 2640846-04-2C21H20FNO2
6-Fluoro-3-(4-methylbenzoyl)-1-(2-methylpropyl)-1,4-dihydroquinolin-4-one chemical structure, C21H20FNO2, CAS 2640892-03-9
6-Fluoro-3-(4-methylbenzoyl)-1-(2-methylpropyl)-1,4-dihydroquinolin-4-one
CAS 2640892-03-9C21H20FNO2
2-({4-[(2-Fluorophenyl)methoxy]phenyl}methylidene)-4,4-dimethyl-3-oxopentanenitrile chemical structure, C21H20FNO2, CAS 588685-94-3
2-({4-[(2-Fluorophenyl)methoxy]phenyl}methylidene)-4,4-dimethyl-3-oxopentanenitrile
CAS 588685-94-3C21H20FNO2
4-Fluoro-N-[4-(2-phenoxyethoxy)benzyl]aniline chemical structure, C21H20FNO2, CAS 1040687-47-5
4-Fluoro-N-[4-(2-phenoxyethoxy)benzyl]aniline
CAS 1040687-47-5C21H20FNO2
Ethyl 4-(4-fluorophenyl)-2-propylquinoline-3-carboxylate chemical structure, C21H20FNO2, CAS 121659-84-5
Ethyl 4-(4-fluorophenyl)-2-propylquinoline-3-carboxylate
CAS 121659-84-5C21H20FNO2
N-({3-[(3-Fluorophenyl)methoxy]phenyl}methyl)-4-methoxyaniline chemical structure, C21H20FNO2, CAS 2212535-07-2
N-({3-[(3-Fluorophenyl)methoxy]phenyl}methyl)-4-methoxyaniline
CAS 2212535-07-2C21H20FNO2

Frequently asked questions

What is the molar mass of C21H20FNO2?

The molar mass of C21H20FNO2 is 337.39 g/mol, calculated from standard atomic weights for 21 carbon atoms, 20 hydrogen atoms, 1 fluorine atom, 1 nitrogen atom and 2 oxygen atoms. The monoisotopic mass is 337.1478 Da.

How many compounds have the formula C21H20FNO2?

CompoundList lists 19 compounds with the molecular formula C21H20FNO2, including 5-(4-Fluorophenyl)-3-hydroxy-2-(1,2,3,4-tetrahydroisoquinolin-1-yl)cyclohex-2-en-1-one, 2-[(Z)-(2-Fluorophenyl)methylidene]-1-azabicyclo[2.2.2]oct-3-yl benzenecarboxylate, Benzofuran-2-yl(3-(4-fluorophenyl)azepan-1-yl)methanone. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.

What is the degree of unsaturation of C21H20FNO2?

C21H20FNO2 has a degree of unsaturation of 12. That is the total number of rings and pi bonds (a double bond counts as one, a triple bond as two) in any structure with this formula.