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Molecular formula

C9H20

39 compounds have this formula on CompoundList.

Molar mass
128.26g/mol
Monoisotopic mass
148.2820Da
Atoms
29
Elements
2
Rings plus double bonds
0

The formula C9H20 describes a molecule made of 9 carbon atoms and 20 hydrogen 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 × 984.28%
    12.011 × 9 = 108.099 g/mol
  • H Hydrogen × 2015.72%
    1.008 × 20 = 20.160 g/mol
Look up another formula

Compounds with the formula C9H20

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

Showing 1 to 39 of 39 compounds

Nonane chemical structure, C9H20, CAS 111-84-2
Nonane
CAS 111-84-2C9H20
2-Methyloctane chemical structure, C9H20, CAS 3221-61-2
2-Methyloctane
CAS 3221-61-2C9H20
2,4-Dimethylheptane chemical structure, C9H20, CAS 2213-23-2
2,4-Dimethylheptane
CAS 2213-23-2C9H20
4-Methyloctane chemical structure, C9H20, CAS 2216-34-4
4-Methyloctane
CAS 2216-34-4C9H20
2,2,4-Trimethylhexane chemical structure, C9H20, CAS 16747-26-5
2,2,4-Trimethylhexane
CAS 16747-26-5C9H20
2,2,5-Trimethylhexane chemical structure, C9H20, CAS 3522-94-9
2,2,5-Trimethylhexane
CAS 3522-94-9C9H20
3,3-Diethylpentane chemical structure, C9H20, CAS 1067-20-5
3,3-Diethylpentane
CAS 1067-20-5C9H20
3-Methyloctane chemical structure, C9H20, CAS 2216-33-3
3-Methyloctane
CAS 2216-33-3C9H20
3,4-Dimethylheptane chemical structure, C9H20, CAS 922-28-1
3,4-Dimethylheptane
CAS 922-28-1C9H20
2,3-Dimethylheptane chemical structure, C9H20, CAS 3074-71-3
2,3-Dimethylheptane
CAS 3074-71-3C9H20
3,5-Dimethylheptane chemical structure, C9H20, CAS 926-82-9
3,5-Dimethylheptane
CAS 926-82-9C9H20
2,2,4,4-Tetramethylpentane chemical structure, C9H20, CAS 1070-87-7
2,2,4,4-Tetramethylpentane
CAS 1070-87-7C9H20
Heptane, 4-ethyl- chemical structure, C9H20, CAS 2216-32-2
Heptane, 4-ethyl-
CAS 2216-32-2C9H20
(~2~H_20_)Nonane chemical structure, C9H20, CAS 121578-11-8
(~2~H_20_)Nonane
CAS 121578-11-8C9H20
2,5-Dimethylheptane chemical structure, C9H20, CAS 2216-30-0
2,5-Dimethylheptane
CAS 2216-30-0C9H20
2,3,5-Trimethylhexane chemical structure, C9H20, CAS 1069-53-0
2,3,5-Trimethylhexane
CAS 1069-53-0C9H20
3,3-Dimethylheptane chemical structure, C9H20, CAS 4032-86-4
3,3-Dimethylheptane
CAS 4032-86-4C9H20
2,6-Dimethylheptane chemical structure, C9H20, CAS 1072-05-5
2,6-Dimethylheptane
CAS 1072-05-5C9H20
2,2,3-Trimethylhexane chemical structure, C9H20, CAS 16747-25-4
2,2,3-Trimethylhexane
CAS 16747-25-4C9H20
3-Ethyl-2-methylhexane chemical structure, C9H20, CAS 16789-46-1
3-Ethyl-2-methylhexane
CAS 16789-46-1C9H20
4-Ethyl-2-methylhexane chemical structure, C9H20, CAS 3074-75-7
4-Ethyl-2-methylhexane
CAS 3074-75-7C9H20
3-Ethyl-4-methylhexane chemical structure, C9H20, CAS 3074-77-9
3-Ethyl-4-methylhexane
CAS 3074-77-9C9H20
2,2-Dimethylheptane chemical structure, C9H20, CAS 1071-26-7
2,2-Dimethylheptane
CAS 1071-26-7C9H20
3-Ethylheptane chemical structure, C9H20, CAS 73507-01-4
3-Ethylheptane
CAS 73507-01-4C9H20

Frequently asked questions

What is the molar mass of C9H20?

The molar mass of C9H20 is 128.26 g/mol, calculated from standard atomic weights for 9 carbon atoms and 20 hydrogen atoms. The monoisotopic mass is 148.2820 Da.

How many compounds have the formula C9H20?

CompoundList lists 39 compounds with the molecular formula C9H20, including Nonane, 2-Methyloctane, 2,4-Dimethylheptane. 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 C9H20?

C9H20 has a degree of unsaturation of 0. 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.