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Molecular formula

C18H21FN2O

30 compounds have this formula on CompoundList.

Molar mass
300.38g/mol
Monoisotopic mass
300.1638Da
Atoms
43
Elements
5
Rings plus double bonds
9

The formula C18H21FN2O describes a molecule made of 18 carbon atoms, 21 hydrogen atoms, 1 fluorine atom, 2 nitrogen atoms and 1 oxygen atom. 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 × 1871.98%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 217.05%
    1.008 × 21 = 21.168 g/mol
  • F Fluorine × 16.32%
    18.998 × 1 = 18.998 g/mol
  • N Nitrogen × 29.33%
    14.007 × 2 = 28.014 g/mol
  • O Oxygen × 15.33%
    15.999 × 1 = 15.999 g/mol
Look up another formula

Compounds with the formula C18H21FN2O

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

Showing 1 to 30 of 30 compounds

1-(1-(4-Fluorophenyl)-2,5-dimethylpyrrol-3-yl)-2-pyrrolidin-1-ylethanone chemical structure, C18H21FN2O, CAS 314245-33-5
1-(1-(4-Fluorophenyl)-2,5-dimethylpyrrol-3-yl)-2-pyrrolidin-1-ylethanone
CAS 314245-33-5C18H21FN2O
1-[(4-Fluorophenyl)methyl]-4-(2-methoxyphenyl)piperazine chemical structure, C18H21FN2O, CAS 288299-64-9
1-[(4-Fluorophenyl)methyl]-4-(2-methoxyphenyl)piperazine
CAS 288299-64-9C18H21FN2O
Cyclohexyl(8-fluoro-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indol-2-yl)methanone chemical structure, C18H21FN2O, CAS 254980-78-4
Cyclohexyl(8-fluoro-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indol-2-yl)methanone
CAS 254980-78-4C18H21FN2O
2-[Benzyl(methyl)amino]-N-[2-(4-fluorophenyl)ethyl]acetamide chemical structure, C18H21FN2O, CAS 851169-82-9
2-[Benzyl(methyl)amino]-N-[2-(4-fluorophenyl)ethyl]acetamide
CAS 851169-82-9C18H21FN2O
N-(2-Fluorophenyl)-2-[methyl-[(2-methylphenyl)methyl]amino]propanamide chemical structure, C18H21FN2O, CAS 1007929-87-4
N-(2-Fluorophenyl)-2-[methyl-[(2-methylphenyl)methyl]amino]propanamide
CAS 1007929-87-4C18H21FN2O
N-[4-(Diethylamino)-2-methylphenyl]-3-fluorobenzamide chemical structure, C18H21FN2O, CAS 706774-42-7
N-[4-(Diethylamino)-2-methylphenyl]-3-fluorobenzamide
CAS 706774-42-7C18H21FN2O
1-Cyclohexyl-2-(6-fluoro-5H-imidazo[5,1-a]isoindol-5-yl)ethanol chemical structure, C18H21FN2O, CAS 1402836-76-3
1-Cyclohexyl-2-(6-fluoro-5H-imidazo[5,1-a]isoindol-5-yl)ethanol
CAS 1402836-76-3C18H21FN2O
N-(3-(4-(Dimethylamino)phenyl)propyl)-4-fluorobenzamide chemical structure, C18H21FN2O, CAS 953151-26-3
N-(3-(4-(Dimethylamino)phenyl)propyl)-4-fluorobenzamide
CAS 953151-26-3C18H21FN2O
N-(4-(Dimethylamino)phenethyl)-2-(4-fluorophenyl)acetamide chemical structure, C18H21FN2O, CAS 953243-77-1
N-(4-(Dimethylamino)phenethyl)-2-(4-fluorophenyl)acetamide
CAS 953243-77-1C18H21FN2O
N-(3-(4-(Dimethylamino)phenyl)propyl)-2-fluorobenzamide chemical structure, C18H21FN2O, CAS 953383-43-2
N-(3-(4-(Dimethylamino)phenyl)propyl)-2-fluorobenzamide
CAS 953383-43-2C18H21FN2O
2-[4-(2-Fluorophenyl)piperazin-1-yl]-1-phenylethanol chemical structure, C18H21FN2O, CAS 400075-46-9
2-[4-(2-Fluorophenyl)piperazin-1-yl]-1-phenylethanol
CAS 400075-46-9C18H21FN2O
1-(4-Fluorophenyl)-2-(4-phenylpiperazino)-1-ethanol chemical structure, C18H21FN2O, CAS 400075-52-7
1-(4-Fluorophenyl)-2-(4-phenylpiperazino)-1-ethanol
CAS 400075-52-7C18H21FN2O
3-[Benzyl(ethyl)amino]-N-(2-fluorophenyl)propanamide chemical structure, C18H21FN2O, CAS 461400-80-6
3-[Benzyl(ethyl)amino]-N-(2-fluorophenyl)propanamide
CAS 461400-80-6C18H21FN2O
3-[Benzyl(ethyl)amino]-N-(3-fluorophenyl)propanamide chemical structure, C18H21FN2O, CAS 428825-40-5
3-[Benzyl(ethyl)amino]-N-(3-fluorophenyl)propanamide
CAS 428825-40-5C18H21FN2O
3-[Benzyl(ethyl)amino]-N-(4-fluorophenyl)propanamide chemical structure, C18H21FN2O, CAS 356079-27-1
3-[Benzyl(ethyl)amino]-N-(4-fluorophenyl)propanamide
CAS 356079-27-1C18H21FN2O
(1S,3s,E)-N'-(3-Fluorobenzylidene)adamantane-1-carbohydrazide chemical structure, C18H21FN2O, CAS 363600-51-5
(1S,3s,E)-N'-(3-Fluorobenzylidene)adamantane-1-carbohydrazide
CAS 363600-51-5C18H21FN2O
N'-(2-Fluorobenzylidene)adamantane-1-carbohydrazide chemical structure, C18H21FN2O, CAS 363604-80-2
N'-(2-Fluorobenzylidene)adamantane-1-carbohydrazide
CAS 363604-80-2C18H21FN2O
1-[(4-Fluorophenyl)(4-methoxyphenyl)methyl]piperazine chemical structure, C18H21FN2O, CAS 65214-80-4
1-[(4-Fluorophenyl)(4-methoxyphenyl)methyl]piperazine
CAS 65214-80-4C18H21FN2O
(2-(4-Fluoro-3-methylphenyl)-6,6-dimethyl(5,6,7-trihydroindol))-4-O-methyloxime chemical structure, C18H21FN2O, CAS 1274948-04-7
(2-(4-Fluoro-3-methylphenyl)-6,6-dimethyl(5,6,7-trihydroindol))-4-O-methyloxime
CAS 1274948-04-7C18H21FN2O
2-[4-(4-Fluorophenyl)piperazino]-1-phenyl-1-ethanol chemical structure, C18H21FN2O, CAS 400075-44-7
2-[4-(4-Fluorophenyl)piperazino]-1-phenyl-1-ethanol
CAS 400075-44-7C18H21FN2O
2-{[(4-Fluorophenyl)methyl](methyl)amino}-N-(1-phenylethyl)ethanimidic acid chemical structure, C18H21FN2O, CAS 5710-13-4
2-{[(4-Fluorophenyl)methyl](methyl)amino}-N-(1-phenylethyl)ethanimidic acid
CAS 5710-13-4C18H21FN2O
N-(5-Fluoro-2,3-dihydro-1H-inden-1-yl)-1-(prop-2-yn-1-yl)piperidine-4-carboxamide chemical structure, C18H21FN2O, CAS 1333794-13-0
N-(5-Fluoro-2,3-dihydro-1H-inden-1-yl)-1-(prop-2-yn-1-yl)piperidine-4-carboxamide
CAS 1333794-13-0C18H21FN2O
N-[4-(Diethylamino)-2-methylphenyl]-4-fluorobenzamide chemical structure, C18H21FN2O, CAS 701281-91-6
N-[4-(Diethylamino)-2-methylphenyl]-4-fluorobenzamide
CAS 701281-91-6C18H21FN2O
2-Fluoro-3-[4-(2-methyl-4-pyridinyl)-1-piperidinyl]benzenemethanol chemical structure, C18H21FN2O, CAS 1400759-00-3
2-Fluoro-3-[4-(2-methyl-4-pyridinyl)-1-piperidinyl]benzenemethanol
CAS 1400759-00-3C18H21FN2O

Frequently asked questions

What is the molar mass of C18H21FN2O?

The molar mass of C18H21FN2O is 300.38 g/mol, calculated from standard atomic weights for 18 carbon atoms, 21 hydrogen atoms, 1 fluorine atom, 2 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 300.1638 Da.

How many compounds have the formula C18H21FN2O?

CompoundList lists 30 compounds with the molecular formula C18H21FN2O, including 1-(1-(4-Fluorophenyl)-2,5-dimethylpyrrol-3-yl)-2-pyrrolidin-1-ylethanone, 1-[(4-Fluorophenyl)methyl]-4-(2-methoxyphenyl)piperazine, Cyclohexyl(8-fluoro-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indol-2-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 C18H21FN2O?

C18H21FN2O has a degree of unsaturation of 9. 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.