CompoundList
Molecular formula

C5H9N3O

302 compounds have this formula on CompoundList.

Molar mass
127.15g/mol
Monoisotopic mass
127.0746Da
Atoms
18
Elements
4
Rings plus double bonds
3

The formula C5H9N3O describes a molecule made of 5 carbon atoms, 9 hydrogen atoms, 3 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 × 547.23%
    12.011 × 5 = 60.055 g/mol
  • H Hydrogen × 97.14%
    1.008 × 9 = 9.072 g/mol
  • N Nitrogen × 333.05%
    14.007 × 3 = 42.021 g/mol
  • O Oxygen × 112.58%
    15.999 × 1 = 15.999 g/mol
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Compounds with the formula C5H9N3O

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

Showing 1 to 100 of 302 compounds

Frequently asked questions

What is the molar mass of C5H9N3O?

The molar mass of C5H9N3O is 127.15 g/mol, calculated from standard atomic weights for 5 carbon atoms, 9 hydrogen atoms, 3 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 127.0746 Da.

How many compounds have the formula C5H9N3O?

CompoundList lists 302 compounds with the molecular formula C5H9N3O, including 5-(Propan-2-yl)-1,3,4-oxadiazol-2-amine, (1-Ethyl-1H-1,2,4-triazol-5-yl)methanol, 2-(3-Amino-1H-pyrazol-1-yl)ethan-1-ol. 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 C5H9N3O?

C5H9N3O has a degree of unsaturation of 3. 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.