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Molecular formula

C16H16F5N5O

9 compounds have this formula on CompoundList.

Molar mass
389.33g/mol
Monoisotopic mass
389.1275Da
Atoms
43
Elements
5
Rings plus double bonds
9

The formula C16H16F5N5O describes a molecule made of 16 carbon atoms, 16 hydrogen atoms, 5 fluorine atoms, 5 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 × 1649.36%
    12.011 × 16 = 192.176 g/mol
  • H Hydrogen × 164.14%
    1.008 × 16 = 16.128 g/mol
  • F Fluorine × 524.40%
    18.998 × 5 = 94.990 g/mol
  • N Nitrogen × 517.99%
    14.007 × 5 = 70.035 g/mol
  • O Oxygen × 14.11%
    15.999 × 1 = 15.999 g/mol
Look up another formula

Compounds with the formula C16H16F5N5O

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

Showing 1 to 9 of 9 compounds

(3R)-3-Amino-4-(2,5-difluorophenyl)-1-[3-(trifluoromethyl)-5H,6H,7H,8H-[1,2,4]triazolo[3,4-a]pyrazin-7-yl]butan-1-one hydrochloride chemical structure, C16H16F5N5O, CAS 486460-31-5
(3R)-3-Amino-4-(2,5-difluorophenyl)-1-[3-(trifluoromethyl)-5H,6H,7H,8H-[1,2,4]triazolo[3,4-a]pyrazin-7-yl]butan-1-one hydrochloride
CAS 486460-31-5C16H16F5N5O
3-Amino-4-(3,4-difluorophenyl)-1-[3-(trifluoromethyl)-5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyrazin-7-yl]butan-1-one chemical structure, C16H16F5N5O, CAS 1334244-24-4
3-Amino-4-(3,4-difluorophenyl)-1-[3-(trifluoromethyl)-5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyrazin-7-yl]butan-1-one
CAS 1334244-24-4C16H16F5N5O
(1R)-1-(3,4-Difluorobenzyl)-3-oxo-3-[3-(trifluoromethyl)-5,6-dihydro[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl]propylamine hydrochloride chemical structure, C16H16F5N5O, CAS 486459-88-5
(1R)-1-(3,4-Difluorobenzyl)-3-oxo-3-[3-(trifluoromethyl)-5,6-dihydro[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl]propylamine hydrochloride
CAS 486459-88-5C16H16F5N5O
Sitagliptin EP impurity C chemical structure, C16H16F5N5O, CAS 945261-48-3
Sitagliptin EP impurity C
CAS 945261-48-3C16H16F5N5O
Sitagliptin defuoro impurity 5 chemical structure, C16H16F5N5O, CAS 1334244-32-4
Sitagliptin defuoro impurity 5
CAS 1334244-32-4C16H16F5N5O
2-(2,2-Difluoroethyl)-5-{4-[6-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}-2,3-dihydropyridazin-3-one chemical structure, C16H16F5N5O, CAS 3054549-71-9
2-(2,2-Difluoroethyl)-5-{4-[6-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}-2,3-dihydropyridazin-3-one
CAS 3054549-71-9C16H16F5N5O
2-(2,2-Difluoroethyl)-5-{4-[5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}-2,3-dihydropyridazin-3-one chemical structure, C16H16F5N5O, CAS 3054578-99-0
2-(2,2-Difluoroethyl)-5-{4-[5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}-2,3-dihydropyridazin-3-one
CAS 3054578-99-0C16H16F5N5O
2-(2,2-Difluoroethyl)-5-{4-[2-(trifluoromethyl)pyridin-4-yl]piperazin-1-yl}-2,3-dihydropyridazin-3-one chemical structure, C16H16F5N5O, CAS 3054443-97-6
2-(2,2-Difluoroethyl)-5-{4-[2-(trifluoromethyl)pyridin-4-yl]piperazin-1-yl}-2,3-dihydropyridazin-3-one
CAS 3054443-97-6C16H16F5N5O
2-(2,2-Difluoroethyl)-5-{4-[6-(trifluoromethyl)pyridin-3-yl]piperazin-1-yl}-2,3-dihydropyridazin-3-one chemical structure, C16H16F5N5O, CAS 3054558-71-0
2-(2,2-Difluoroethyl)-5-{4-[6-(trifluoromethyl)pyridin-3-yl]piperazin-1-yl}-2,3-dihydropyridazin-3-one
CAS 3054558-71-0C16H16F5N5O

Frequently asked questions

What is the molar mass of C16H16F5N5O?

The molar mass of C16H16F5N5O is 389.33 g/mol, calculated from standard atomic weights for 16 carbon atoms, 16 hydrogen atoms, 5 fluorine atoms, 5 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 389.1275 Da.

How many compounds have the formula C16H16F5N5O?

CompoundList lists 9 compounds with the molecular formula C16H16F5N5O, including (3R)-3-Amino-4-(2,5-difluorophenyl)-1-[3-(trifluoromethyl)-5H,6H,7H,8H-[1,2,4]triazolo[3,4-a]pyrazin-7-yl]butan-1-one hydrochloride, 3-Amino-4-(3,4-difluorophenyl)-1-[3-(trifluoromethyl)-5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyrazin-7-yl]butan-1-one, (1R)-1-(3,4-Difluorobenzyl)-3-oxo-3-[3-(trifluoromethyl)-5,6-dihydro[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl]propylamine hydrochloride. 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 C16H16F5N5O?

C16H16F5N5O 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.