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Molecular formula

C21H16F3NO

5 compounds have this formula on CompoundList.

Molar mass
355.36g/mol
Monoisotopic mass
355.1184Da
Atoms
42
Elements
5
Rings plus double bonds
13

The formula C21H16F3NO describes a molecule made of 21 carbon atoms, 16 hydrogen atoms, 3 fluorine atoms, 1 nitrogen atom 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 × 2170.98%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 164.54%
    1.008 × 16 = 16.128 g/mol
  • F Fluorine × 316.04%
    18.998 × 3 = 56.994 g/mol
  • N Nitrogen × 13.94%
    14.007 × 1 = 14.007 g/mol
  • O Oxygen × 14.50%
    15.999 × 1 = 15.999 g/mol
Look up another formula

Compounds with the formula C21H16F3NO

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

Showing 1 to 5 of 5 compounds

N-(4-Benzyloxybenzylidene)-2-trifluoromethylaniline chemical structure, C21H16F3NO, CAS 70627-56-4
N-(4-Benzyloxybenzylidene)-2-trifluoromethylaniline
CAS 70627-56-4C21H16F3NO
2-Phenyl-1-[3-(trifluoromethyl)phenyl]-4,5,6,7-tetrahydro-1H-indol-4-one chemical structure, C21H16F3NO, CAS 325992-48-1
2-Phenyl-1-[3-(trifluoromethyl)phenyl]-4,5,6,7-tetrahydro-1H-indol-4-one
CAS 325992-48-1C21H16F3NO
2,2-Diphenyl-N-[4-(trifluoromethyl)phenyl]acetamide chemical structure, C21H16F3NO, CAS 640263-08-7
2,2-Diphenyl-N-[4-(trifluoromethyl)phenyl]acetamide
CAS 640263-08-7C21H16F3NO
3-Phenyl-1-(prop-2-en-1-yl)-5-[3-(trifluoromethyl)phenyl]pyridin-4(1H)-one chemical structure, C21H16F3NO, CAS 59756-69-3
3-Phenyl-1-(prop-2-en-1-yl)-5-[3-(trifluoromethyl)phenyl]pyridin-4(1H)-one
CAS 59756-69-3C21H16F3NO
9-Methyl-9-(4-(trifluoromethoxy)phenyl)-9,10-dihydroacridine chemical structure, C21H16F3NO, CAS 2624307-17-9
9-Methyl-9-(4-(trifluoromethoxy)phenyl)-9,10-dihydroacridine
CAS 2624307-17-9C21H16F3NO

Frequently asked questions

What is the molar mass of C21H16F3NO?

The molar mass of C21H16F3NO is 355.36 g/mol, calculated from standard atomic weights for 21 carbon atoms, 16 hydrogen atoms, 3 fluorine atoms, 1 nitrogen atom and 1 oxygen atom. The monoisotopic mass is 355.1184 Da.

How many compounds have the formula C21H16F3NO?

CompoundList lists 5 compounds with the molecular formula C21H16F3NO, including N-(4-Benzyloxybenzylidene)-2-trifluoromethylaniline, 2-Phenyl-1-[3-(trifluoromethyl)phenyl]-4,5,6,7-tetrahydro-1H-indol-4-one, 2,2-Diphenyl-N-[4-(trifluoromethyl)phenyl]acetamide. 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 C21H16F3NO?

C21H16F3NO has a degree of unsaturation of 13. 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.