C20H20O
44 compounds have this formula on CompoundList.
- Molar mass
- 276.38g/mol
- Monoisotopic mass
- 276.1514Da
- Atoms
- 41
- Elements
- 3
- Rings plus double bonds
- 11
The formula C20H20O describes a molecule made of 20 carbon atoms, 20 hydrogen 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 × 2086.92%12.011 × 20 = 240.220 g/mol
- H Hydrogen × 207.29%1.008 × 20 = 20.160 g/mol
- O Oxygen × 15.79%15.999 × 1 = 15.999 g/mol
Compounds with the formula C20H20O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 44 of 44 compounds
![1,2,3,6,7,8,11,12-Octahydrobenzo[e]pyren-9(10H)-one chemical structure, C20H20O, CAS 68151-08-6](/s/UIJOUFUKJPLQEK-UHFFFAOYSA-N.svg)
![4,4-Diphenyl-3-oxatricyclo[4.2.1.02,5]nonane chemical structure, C20H20O, CAS 42245-07-8](/s/KSKJPJGJOXFELM-UHFFFAOYSA-N.svg)
![1-Phenyl-5-[4-(propan-2-yl)phenyl]penta-1,4-dien-3-one chemical structure, C20H20O](/s/KKPHUELUADUIDQ-UHFFFAOYSA-N.svg)
![Cyclopentanone, 2-[bis(4-methylphenyl)methylene]- chemical structure, C20H20O, CAS 56005-43-7](/s/ZAMIQEUSRQPWMS-UHFFFAOYSA-N.svg)
- (5S)-6,6-Dimethyl-3,5-diphenylcyclohex-2-EN-1-one192183-82-7C20H20O
- (5R)-2-([1,1a(2)-Biphenyl]-4-ylmethylene)-5-methylcyclohexanone853220-64-1C20H20O
- 4-Phenyl-3-(2-phenylethenylidene)hexan-2-one1312698-00-2C20H20O
- 2-Phenyl-3,4,5,6,7,8-hexahydroanthracen-1(2H)-one102158-59-8C20H20O
- 9-Bicyclo[4.1.0]hept-7-yl-9H-fluoren-9-ol965-96-8C20H20O
- 1-(4,4-Diphenylcyclohexen-1-yl)ethanone681460-28-6C20H20O
- 1-(Anthracen-1-yl)hexan-1-one62315-56-4C20H20O
- 1-(Anthracen-2-yl)hexan-1-one62315-57-5C20H20O
- 1-[(1Z,3Z,5E,7E,9Z,11E,13E,15E,17Z)-Cyclooctadeca-1,3,5,7,9,11,13,15,17-nonaen-1-yl]ethan-1-one16495-73-1C20H20O
- 6-(4-(tert-Butyl)phenyl)naphthalen-2-ol896427-70-6C20H20O
- 2-(Anthracen-9-yl)-3,3,4-trimethyloxetane88806-82-0C20H20O
- 1,3-Diphenylocta-5,7-dien-1-one89131-86-2C20H20O
- 6,8-Diphenyloct-1-yn-4-one106084-41-7C20H20O
- 2-Benzylidene-5-[(4-methylphenyl)methyl]cyclopentan-1-one78943-54-1C20H20O
- 1,1'-{3-[(3-Methylbut-3-en-1-yl)oxy]prop-1-yne-3,3-diyl}dibenzene827605-92-5C20H20O
- 1,1'-{3-[(3-Methylbut-2-en-1-yl)oxy]prop-1-yne-3,3-diyl}dibenzene827605-90-3C20H20O
- 2-Methyl-1,5-bis(4-methylphenyl)penta-1,4-dien-3-one919079-83-7C20H20O
- 1_(4_(Tert_Butyl)phenoxy)naphthalene2375913-49-6C20H20O
- 1_(3_(Tert_butyl)phenoxy)naphthalene2375913-43-0C20H20O
- (5E)-1,3-Diphenylocta-5,7-dien-1-oneC20H20O
Frequently asked questions
What is the molar mass of C20H20O?
The molar mass of C20H20O is 276.38 g/mol, calculated from standard atomic weights for 20 carbon atoms, 20 hydrogen atoms and 1 oxygen atom. The monoisotopic mass is 276.1514 Da.
How many compounds have the formula C20H20O?
CompoundList lists 44 compounds with the molecular formula C20H20O, including 1-(9-Phenanthryl)-1-cyclohexanol, 5,5-Dimethyl-3-(p-phenylphenyl)cyclohex-2-en-1-one, 2-(4-Isopropylbenzylidene)-1-tetralone. 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 C20H20O?
C20H20O has a degree of unsaturation of 11. 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.