CompoundList
Molecular formula

C4H5KO3

3 compounds have this formula on CompoundList.

Molar mass
140.18g/mol
Monoisotopic mass
139.9876Da
Atoms
13
Elements
4

The formula C4H5KO3 describes a molecule made of 4 carbon atoms, 5 hydrogen atoms, 1 potassium atom and 3 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 × 434.27%
    12.011 × 4 = 48.044 g/mol
  • H Hydrogen × 53.60%
    1.008 × 5 = 5.040 g/mol
  • K Potassium × 127.89%
    39.098 × 1 = 39.098 g/mol
  • O Oxygen × 334.24%
    15.999 × 3 = 47.997 g/mol
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Compounds with the formula C4H5KO3

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

Showing 1 to 3 of 3 compounds

Frequently asked questions

What is the molar mass of C4H5KO3?

The molar mass of C4H5KO3 is 140.18 g/mol, calculated from standard atomic weights for 4 carbon atoms, 5 hydrogen atoms, 1 potassium atom and 3 oxygen atoms. The monoisotopic mass is 139.9876 Da.

How many compounds have the formula C4H5KO3?

CompoundList lists 3 compounds with the molecular formula C4H5KO3, including Potassium (1E)-3-methoxy-3-oxoprop-1-en-1-olate, Potassium (2R,3R)-3-methyloxirane-2-carboxylate, Potassium 4-hydroxybut-2-enoate. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.