CompoundList
Molecular formula

C2HNO2

6 compounds have this formula on CompoundList.

Molar mass
71.03g/mol
Monoisotopic mass
71.0007Da
Atoms
6
Elements
4
Rings plus double bonds
3

The formula C2HNO2 describes a molecule made of 2 carbon atoms, 1 hydrogen atom, 1 nitrogen atom and 2 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 × 233.82%
    12.011 × 2 = 24.022 g/mol
  • H Hydrogen × 11.42%
    1.008 × 1 = 1.008 g/mol
  • N Nitrogen × 119.72%
    14.007 × 1 = 14.007 g/mol
  • O Oxygen × 245.05%
    15.999 × 2 = 31.998 g/mol
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Compounds with the formula C2HNO2

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

Showing 1 to 6 of 6 compounds

Frequently asked questions

What is the molar mass of C2HNO2?

The molar mass of C2HNO2 is 71.03 g/mol, calculated from standard atomic weights for 2 carbon atoms, 1 hydrogen atom, 1 nitrogen atom and 2 oxygen atoms. The monoisotopic mass is 71.0007 Da.

How many compounds have the formula C2HNO2?

CompoundList lists 6 compounds with the molecular formula C2HNO2, including Carbonocyanidic acid, Aziridinedione, (Hydroxyimino)ethen-1-one. 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 C2HNO2?

C2HNO2 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.