C20H20
46 compounds have this formula on CompoundList.
- Molar mass
- 260.38g/mol
- Monoisotopic mass
- 262.1691Da
- Atoms
- 40
- Elements
- 2
- Rings plus double bonds
- 11
The formula C20H20 describes a molecule made of 20 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 × 2092.26%12.011 × 20 = 240.220 g/mol
- H Hydrogen × 207.74%1.008 × 20 = 20.160 g/mol
Compounds with the formula C20H20
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 46 of 46 compounds
![5,5,10,10-Tetramethyl-5,10-dihydroindeno[2,1-a]indene chemical structure, C20H20, CAS 89057-44-3](/s/QWHZIRWZLWBQBB-UHFFFAOYSA-N.svg)
![15H-Cyclopenta[a]phenanthrene, 16,17-dihydro-3-(1-methylethyl)- chemical structure, C20H20, CAS 57325-68-5](/s/HPWMNFTZLMKYMV-UHFFFAOYSA-N.svg)
![Tetracyclo[10.8.0.02,9.014,19]icosa-1(20),2(9),10,12,14,16,18-heptaene chemical structure, C20H20, CAS 4936-14-5](/s/MFBOUAHCJPSICV-UHFFFAOYSA-N.svg)
![4,5,7,8,9,10,11,12-Octahydrobenzo[A]pyrene chemical structure, C20H20, CAS 73712-70-6](/s/BVSDHJAYNSXNTN-UHFFFAOYSA-N.svg)
![2-[(2,4,6-Trimethylphenyl)methyl]naphthalene chemical structure, C20H20, CAS 1078758-40-3](/s/OJODNMJRHNFLHW-UHFFFAOYSA-N.svg)
- 2-(2-Phenylethenyl)-1,2,3,4-tetrahydro-1,1'-biphenyl106731-39-9C20H20
- 1-(Prop-2-en-1-yl)-4-[(4-propylphenyl)ethynyl]benzene142116-21-0C20H20
- 1,1'-(Hexa-1,3,5-triene-1,6-diyl)bis(4-methylbenzene)31382-31-7C20H20
- 1-[(2,4,6-Trimethylphenyl)methyl]naphthalene62784-87-6C20H20
- 1,1'-[1-(But-3-en-1-yl)-3-methylcycloprop-2-ene-1,2-diyl]dibenzene75032-39-2C20H20
- 3-(But-3-en-1-yl)-2-methyl-1-phenyl-1H-indene75032-40-5C20H20
- 1-(But-3-en-1-yl)-2-methyl-3-phenyl-1H-indene75032-41-6C20H20
- 1,1'-[3-(But-3-en-1-yl)-3-methylcycloprop-1-ene-1,2-diyl]dibenzene78646-22-7C20H20
- 2-Methyl-1,3-diphenylbicyclo[2.2.1]hept-2-ene78646-24-9C20H20
- Cyclopropa[a]cyclopropa[4,5]cyclopent[1,2,3-fg]acenaphthylene, 1,1a,3b,4,4a,6b-hexahydro-1,1,4,4-tetramethyl-, radical ion(1+), (1aR,3bS,4aR,6bS)-rel-326487-54-1C20H20
- 9-(2-Methylpent-4-EN-2-yl)anthracene104805-28-9C20H20
- 9-Cycloheptylidene-9H-fluorene61370-29-4C20H20
- Cycloicosa-1,3,5,7,9,11,13,15,17,19-decaene3227-78-9C20H20
- 1,2,3,3',4,4'-Hexahydro-1,1'-binaphthalene193816-75-0C20H20
- 1,4-Dimethyl-2-methylidene-1,4-diphenylspiro[2.2]pentane62360-14-9C20H20
- 2,4-Diphenylbicyclo[3.2.1]oct-2-ene61553-75-1C20H20
- 3-Methyl-1,2-diphenylbicyclo[4.1.0]hept-2-ene80949-71-9C20H20
- 2-[4-(1,1-Dimethylethyl)phenyl]naphthalene524698-50-8C20H20
- D2 C20 Triaromatic sterane205529-79-9C20H20
- C20 Triaromatic sterane81943-50-2C20H20
- 4-Cyclohexyl-4'-ethynyl-1,1'-biphenyl2411122-16-0C20H20
- 17-Ethyl-17-methyl-15,16-dihydrocyclopenta[a]phenanthreneC20H20
Frequently asked questions
What is the molar mass of C20H20?
The molar mass of C20H20 is 260.38 g/mol, calculated from standard atomic weights for 20 carbon atoms and 20 hydrogen atoms. The monoisotopic mass is 262.1691 Da.
How many compounds have the formula C20H20?
CompoundList lists 46 compounds with the molecular formula C20H20, including (5)Fullerane-C20-Ih, 1,2,3,4-Tetrahydro-7,12-dimethylbenz(a)anthracene, 7,12-Dimethyl-8,9,10,11-tetrahydrobenz(a)anthracene. 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 C20H20?
C20H20 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.