C19H18O
68 compounds have this formula on CompoundList.
- Molar mass
- 262.35g/mol
- Monoisotopic mass
- 262.1358Da
- Atoms
- 38
- Elements
- 3
- Rings plus double bonds
- 11
The formula C19H18O describes a molecule made of 19 carbon atoms, 18 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 × 1986.99%12.011 × 19 = 228.209 g/mol
- H Hydrogen × 186.92%1.008 × 18 = 18.144 g/mol
- O Oxygen × 16.10%15.999 × 1 = 15.999 g/mol
Compounds with the formula C19H18O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 68 of 68 compounds
![6-(2-Methylbenzylidene)-6,7,8,9-tetrahydro-5H-benzo[a]cyclohepten-5-one chemical structure, C19H18O, CAS 258352-58-8](/s/ACZBCHAUHNAVHQ-GHRIWEEISA-N.svg)
![7,7-Diphenylbicyclo[3.2.0]heptan-6-one chemical structure, C19H18O, CAS 87274-16-6](/s/LZRARGDGJOHTHL-UHFFFAOYSA-N.svg)
![4-[2-(4-Butylphenyl)ethynyl]benzaldehyde chemical structure, C19H18O, CAS 843675-75-2](/s/FCWVWCSOCLGWLP-UHFFFAOYSA-N.svg)
- 2-Methyl-4-phenyl-2,3,6,7-tetrahydro-s-indacen-1(5H)-one656800-68-9C19H18O
- I+/--(2-Phenylethyl)-1-naphthalenemethanol5751-27-9C19H18O
- 1-(Anthracen-1-yl)-2,2-dimethylpropan-1-one109690-73-5C19H18O
- 1-Methyl-1,2,3,4-tetrahydrobenz(a)anthracen-1-ol94849-68-0C19H18O
- 4-Methyl-1,2,3,4-tetrahydrobenz(a)anthracen-4-ol94849-74-8C19H18O
- 8-Methyl-8,9,10,11-tetrahydrobenz(a)anthracen-8-ol94849-80-6C19H18O
- 11-Methyl-8,9,10,11-tetrahydrobenz(a)anthracen-11-ol94849-86-2C19H18O
- 1-(4-Methoxyphenyl)-6-phenylhexatriene3893-10-5C19H18O
- (5Z)-5-Benzylidene-2-methyl-2-phenylcyclopentan-1-one7499-23-2C19H18O
- 16,17-Dihydro-11-methoxy-17-methyl-15H-cyclopenta(a)phenanthrene5831-18-5C19H18O
- Gona-1,3,5,7,9,13-hexaen-17-one, 12,12-dimethyl-5837-18-3C19H18O
- Spiro[bicyclo[2.2.1]heptane-2,2'-naphtho[1,2-b]pyran]128546-60-1C19H18O
- 2-(2-(Naphthalen-1-yl)phenyl)propan-2-ol569673-92-3C19H18O
- 2-(3-Phenylprop-2-en-1-yl)-3,4-dihydronaphthalen-1(2H)-one207914-98-5C19H18O
- 2-Methoxy-1-(1-phenylethyl)naphthalene133350-15-9C19H18O
- 1H-Inden-1-one, 2,3-dihydro-2-[[4-(1-methylethyl)phenyl]methylene]-141247-26-9C19H18O
- Methanone, [2-(1-hexynyl)phenyl]phenyl-245122-59-2C19H18O
- 2-Cyclopenten-1-one, 2,3-dimethyl-5,5-diphenyl-103826-17-1C19H18O
- Cyclopent[a]inden-8(1H)-one, 2,3,3a,8a-tetrahydro-8a-(phenylmethyl)-61696-86-4C19H18O
- 4-Methyl-3,5-diphenyl-2-cyclohexen-1-one83909-23-3C19H18O
- 1-(Anthracen-9-yl)-2,2-dimethylpropan-1-one109688-18-8C19H18O
- 2,3-Bis(2,4-dimethylphenyl)cycloprop-2-en-1-one60598-10-9C19H18O
- 2,3-Bis(2,5-dimethylphenyl)cycloprop-2-en-1-one52033-79-1C19H18O
- 4-Methyl-5,5-diphenylcyclohex-2-en-1-one103367-61-9C19H18O
- 4-Methyl-4-(2-phenylphenyl)cyclohex-2-EN-1-one143248-82-2C19H18O
- 5-Methyl-2,6-diphenylcyclohex-2-EN-1-one143674-70-8C19H18O
- 3-Phenyl-1-(5,6,7,8-tetrahydro-2-naphthalenyl)-2-propen-1-one62956-51-8C19H18O
- I+/--Methyl-4-(1-naphthalenylmethyl)benzenemethanol52488-31-0C19H18O
- 5-Methyl-1,1-diphenylhexa-1,4-dien-3-one87853-05-2C19H18O
- 4-Methyl-3,6-diphenylhexa-3,5-dien-2-one142700-62-7C19H18O
- 1-[(2-Phenylpropan-2-yl)oxy]naphthalene251442-82-7C19H18O
- 7,7-Diphenylbicyclo[4.1.0]heptan-2-one425641-86-7C19H18O
- 2-Methyl-5,6-diphenylhex-5-en-3-yn-2-ol62839-51-4C19H18O
- 2-Methyl-3-methylidene-2-(2-phenylethyl)-2,3-dihydro-1H-inden-1-one88096-23-5C19H18O
- Bis(2-phenylcyclopropyl)methanone100827-37-0C19H18O
- 3-(Cyclopentyloxy)-3'-ethynyl-1,1'-biphenyl2989083-72-7C19H18O
- 3,3-Diphenylspiro[3.3]heptan-1-one2866334-26-9C19H18O
- 2,3-Dihydro-3-methyl-3-[3-(4-methylphenyl)-2-propyn-1-yl]benzofuran2149030-50-0C19H18O
- P-Tolyl(3-(P-tolyl)bicyclo[1.1.0]butan-1-yl)methanone3056529-12-2C19H18O
- 3-(But-3-enyloxy)-1,3-diphenylprop-1-yne550358-43-5C19H18O
- 1-((4-Methoxyphenyl)ethynyl)-2-(2-methylprop-1-en-1-yl)benzene1256498-47-1C19H18O
- Stereoisomer of 12-ethenyltricyclo[8.2.2.24,7]hexadeca-4,6,10,12,13,15-hexaene-5-carboxaldehyde942415-79-4C19H18O
- 3-Methyl-7-naphthalen-2-ylocta-2,4,6-trienal139141-74-5C19H18O
- (2E,4E,6Z)-3-Methyl-7-naphthalen-2-ylocta-2,4,6-trienal116303-21-0C19H18O
Frequently asked questions
What is the molar mass of C19H18O?
The molar mass of C19H18O is 262.35 g/mol, calculated from standard atomic weights for 19 carbon atoms, 18 hydrogen atoms and 1 oxygen atom. The monoisotopic mass is 262.1358 Da.
How many compounds have the formula C19H18O?
CompoundList lists 68 compounds with the molecular formula C19H18O, including Bis-(4-methylstyryl) ketone, (4E,6E)-1,7-Diphenylhepta-4,6-dien-3-one, 6-(2-Methylbenzylidene)-6,7,8,9-tetrahydro-5H-benzo[a]cyclohepten-5-one. 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 C19H18O?
C19H18O 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.