C19H20
39 compounds have this formula on CompoundList.
- Molar mass
- 248.37g/mol
- Monoisotopic mass
- 248.1565Da
- Atoms
- 39
- Elements
- 2
- Rings plus double bonds
- 10
The formula C19H20 describes a molecule made of 19 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 × 1991.88%12.011 × 19 = 228.209 g/mol
- H Hydrogen × 208.12%1.008 × 20 = 20.160 g/mol
Compounds with the formula C19H20
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 39 of 39 compounds
![1-Ethyl-4-[2-(4-propylphenyl)ethynyl]benzene chemical structure, C19H20, CAS 102225-55-8](/s/SAVOJCMTUWNCLL-UHFFFAOYSA-N.svg)
![1,5-Diphenylbicyclo[3.2.0]heptane chemical structure, C19H20, CAS 94383-67-2](/s/ITJCELKBMFHZCC-UHFFFAOYSA-N.svg)
![Spiro[cycloheptane-1,9'-fluorene] chemical structure, C19H20, CAS 33850-58-7](/s/ZJUIRBJQRSIWGG-UHFFFAOYSA-N.svg)
![1-Ethenyl-3-[3-(4-ethenylphenyl)propyl]benzene chemical structure, C19H20, CAS 107270-52-0](/s/VRGRIBNNLSDYRQ-UHFFFAOYSA-N.svg)
- 1,1'-(3,3-Dimethylpenta-1,4-diene-1,1-diyl)dibenzene67731-48-0C19H20
- 2-(Hept-1-yn-1-yl)-1,1'-biphenyl1101133-46-3C19H20
- 4-(Hept-1-yn-1-yl)-1,1'-biphenyl1101133-47-4C19H20
- 1,1'-(Hepta-3,4-diene-1,3-diyl)dibenzene93269-66-0C19H20
- 2-(Cyclohept-1-en-1-yl)-1,1'-biphenyl98509-52-5C19H20
- 1,1'-(Propane-1,3-diyl)di(cycloocta-1,3,5,7-tetraene)141556-24-3C19H20
- 9-(2-Propylcyclopropyl)-9H-fluorene189151-15-3C19H20
- 1-[1-(3-Methylcyclopenta-2,4-dien-1-yl)cyclobutyl]-1H-indene393517-23-2C19H20
- 1,1'-(3,3-Dimethylcyclopent-1-ene-1,2-diyl)dibenzene54007-91-9C19H20
- 3,3-Diphenylcyclohept-1-ene63865-84-9C19H20
- (2S)-4,5'-Dimethyl-1,1',3,3'-tetrahydro-2,2'-spirobi[indene]63113-12-2C19H20
- [3-(2-Phenylethyl)penta-3,4-dien-1-yl]benzene919285-09-9C19H20
- 7-(4-(tert-Butyl)phenyl)-1H-indene1646359-59-2C19H20
- 1,2,3,5-Tetrahydro-6-methyl-7-phenyl-s-indacen210286-47-8C19H20
- 7-Mesityl-2-methyl-1H-indene880653-07-6C19H20
Frequently asked questions
What is the molar mass of C19H20?
The molar mass of C19H20 is 248.37 g/mol, calculated from standard atomic weights for 19 carbon atoms and 20 hydrogen atoms. The monoisotopic mass is 248.1565 Da.
How many compounds have the formula C19H20?
CompoundList lists 39 compounds with the molecular formula C19H20, including 4-Ethynyl-4'-pentyl-1,1'-biphenyl, 9-Pentyl-phenanthrene, Cyclohexylidenediphenylmethane. 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 C19H20?
C19H20 has a degree of unsaturation of 10. 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.