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Molecular formula

C18H20N4O9

3 compounds have this formula on CompoundList.

Molar mass
436.38g/mol
Monoisotopic mass
436.1230Da
Atoms
51
Elements
4
Rings plus double bonds
11

The formula C18H20N4O9 describes a molecule made of 18 carbon atoms, 20 hydrogen atoms, 4 nitrogen atoms and 9 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 × 1849.54%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 204.62%
    1.008 × 20 = 20.160 g/mol
  • N Nitrogen × 412.84%
    14.007 × 4 = 56.028 g/mol
  • O Oxygen × 933.00%
    15.999 × 9 = 143.991 g/mol
Look up another formula

Compounds with the formula C18H20N4O9

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

Showing 1 to 3 of 3 compounds

3-(Dimethylamino)-1-(2-methoxyphenyl)-1-propanone picrate chemical structure, C18H20N4O9, CAS 853355-95-0
3-(Dimethylamino)-1-(2-methoxyphenyl)-1-propanone picrate
CAS 853355-95-0C18H20N4O9
N-{[2-(4-Nitrophenyl)ethoxy]carbonyl}cytidine chemical structure, C18H20N4O9, CAS 88121-72-6
N-{[2-(4-Nitrophenyl)ethoxy]carbonyl}cytidine
CAS 88121-72-6C18H20N4O9
1-(2-Methoxyethoxy)-2-{(Z)-[2-(2-methoxyethoxy)-5-nitrophenyl]-NNO-azoxy}-4-nitrobenzene chemical structure, C18H20N4O9, CAS 88964-91-4
1-(2-Methoxyethoxy)-2-{(Z)-[2-(2-methoxyethoxy)-5-nitrophenyl]-NNO-azoxy}-4-nitrobenzene
CAS 88964-91-4C18H20N4O9

Frequently asked questions

What is the molar mass of C18H20N4O9?

The molar mass of C18H20N4O9 is 436.38 g/mol, calculated from standard atomic weights for 18 carbon atoms, 20 hydrogen atoms, 4 nitrogen atoms and 9 oxygen atoms. The monoisotopic mass is 436.1230 Da.

How many compounds have the formula C18H20N4O9?

CompoundList lists 3 compounds with the molecular formula C18H20N4O9, including 3-(Dimethylamino)-1-(2-methoxyphenyl)-1-propanone picrate, N-{[2-(4-Nitrophenyl)ethoxy]carbonyl}cytidine, 1-(2-Methoxyethoxy)-2-{(Z)-[2-(2-methoxyethoxy)-5-nitrophenyl]-NNO-azoxy}-4-nitrobenzene. 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 C18H20N4O9?

C18H20N4O9 has a degree of unsaturation of 11. 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.