Molecular formula

C₂₁H₁₈FNO

15 compounds have this formula on CompoundList.

Molar mass: 319.38g/mol
Monoisotopic mass: 319.1372Da
Atoms: 42
Elements: 5
Rings plus double bonds: 13

The formula C21H18FNO describes a molecule made of 21 carbon atoms, 18 hydrogen atoms, 1 fluorine atom, 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 × 2178.98%
12.011 × 21 = 252.231 g/mol
H Hydrogen × 185.68%
1.008 × 18 = 18.144 g/mol
F Fluorine × 15.95%
18.998 × 1 = 18.998 g/mol
N Nitrogen × 14.39%
14.007 × 1 = 14.007 g/mol
O Oxygen × 15.01%
15.999 × 1 = 15.999 g/mol

Look up another formula

Compounds with the formula C21H18FNO

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

Showing 1 to 15 of 15 compounds

1-(1,1'-Biphenyl)-4-YL-3-(4-fluoroanilino)-1-propanone

CAS 279672-36-5C₂₁H₁₈FNO

N-[(2-Fluorophenyl)methyl]-2,2-diphenylacetamide

CAS 329920-78-7C₂₁H₁₈FNO

N,N-Dibenzyl-2-fluorobenzamide

CAS 57409-28-6C₂₁H₁₈FNO

N,N-Dibenzyl-4-fluorobenzamide

CAS 88229-29-2C₂₁H₁₈FNO

N-(4-Fluorobenzyl)-2,2-diphenylacetamide

CAS 331434-82-3C₂₁H₁₈FNO

1-(4-Fluorophenyl)-2-phenyl-1,2,3,4-tetrahydroisoquinolin-6-ol

CAS 96719-63-0C₂₁H₁₈FNO

[1,1'-Biphenyl]-4-acetamide, N-[(3-fluorophenyl)methyl]-

CAS 897015-54-2C₂₁H₁₈FNO

N-(4-Fluorophenyl)-3,3-diphenylpropanamide

CAS 329931-49-9C₂₁H₁₈FNO

N,N-Dibenzyl-3-fluorobenzamide

CAS 66907-46-8C₂₁H₁₈FNO

N-(3-Fluoro-4-methylphenyl)-2,2-diphenylacetamide

CAS 356086-59-4C₂₁H₁₈FNO

N-[(3-Fluorophenyl)methyl]-2-(3-phenylphenyl)acetamide

CAS 897015-56-4C₂₁H₁₈FNO

N-(3-Fluoro-4-methylphenyl)-2-(4-phenylphenyl)acetamide

CAS 881593-35-7C₂₁H₁₈FNO

3-(Dibenzylamino)-4-fluorobenzaldehyde

CAS 918811-75-3C₂₁H₁₈FNO

(E)-3-(2-Cyclopropyl-4-(4-fluorophenyl)quinolin-3-yl)prop-2-en-1-ol

CAS 1623109-08-9C₂₁H₁₈FNO

3'-Fluoro-N-phenethyl-[1,1'-biphenyl]-4-carboxamide

CAS 2957447-14-0C₂₁H₁₈FNO

Frequently asked questions

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What is the molar mass of C21H18FNO?

The molar mass of C21H18FNO is 319.38 g/mol, calculated from standard atomic weights for 21 carbon atoms, 18 hydrogen atoms, 1 fluorine atom, 1 nitrogen atom and 1 oxygen atom. The monoisotopic mass is 319.1372 Da.

How many compounds have the formula C21H18FNO?

CompoundList lists 15 compounds with the molecular formula C21H18FNO, including 1-(1,1'-Biphenyl)-4-YL-3-(4-fluoroanilino)-1-propanone, N-[(2-Fluorophenyl)methyl]-2,2-diphenylacetamide, N,N-Dibenzyl-2-fluorobenzamide. 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 C21H18FNO?

C21H18FNO 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.