C12O9
1 compound has this formula on CompoundList.
- Molar mass
- 288.12g/mol
- Monoisotopic mass
- 287.9542Da
- Atoms
- 21
- Elements
- 2
- Rings plus double bonds
- 13
The formula C12O9 describes a molecule made of 12 carbon 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 × 1250.02%12.011 × 12 = 144.132 g/mol
- O Oxygen × 949.98%15.999 × 9 = 143.991 g/mol
Compounds with the formula C12O9
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 1 of 1 compounds
Frequently asked questions
What is the molar mass of C12O9?
The molar mass of C12O9 is 288.12 g/mol, calculated from standard atomic weights for 12 carbon atoms and 9 oxygen atoms. The monoisotopic mass is 287.9542 Da.
How many compounds have the formula C12O9?
CompoundList lists 1 compound with the molecular formula C12O9, including Mellitic trianhydride. 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 C12O9?
C12O9 has a degree of unsaturation of 13. 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.