Molecular formula
C18H16O
108 compounds have this formula on CompoundList.
- Molar mass
- 248.32g/mol
- Monoisotopic mass
- 248.1201Da
- Atoms
- 35
- Elements
- 3
- Rings plus double bonds
- 11
The formula C18H16O describes a molecule made of 18 carbon atoms, 16 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 × 1887.06%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 166.49%1.008 × 16 = 16.128 g/mol
- O Oxygen × 16.44%15.999 × 1 = 15.999 g/mol
Look up another formula
Compounds with the formula C18H16O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 108 compounds
(2E)-3,4-Dihydro-2-((4-methylphenyl)methylene)-1(2H)-naphthalenone
CAS 59082-26-7C18H16O
1-(4-Methylphenyl)-5-phenyl-1,4-pentadien-3-one
CAS 115846-96-3C18H16O
2-Cyclohexen-1-one, 4,4-diphenyl-
CAS 4528-64-7C18H16O
1,4-Pentadien-3-one, 1-(4-methylphenyl)-5-phenyl-
CAS 57083-29-1C18H16O
16,17-Dihydro-11-methoxy-15H-cyclopenta(a)phenanthrene
CAS 117696-92-1C18H16O
![(2E)-2-[(3-Methylphenyl)methylidene]-1,2,3,4-tetrahydronaphthalen-1-one chemical structure, C18H16O, CAS 227030-23-1](/s/BGJTZTAWZAQBGJ-FOWTUZBSSA-N.svg)
(2E)-2-[(3-Methylphenyl)methylidene]-1,2,3,4-tetrahydronaphthalen-1-one
CAS 227030-23-1C18H16O
2-(1-Phenylethyl)naphthalen-1-ol
CAS 4398-16-7C18H16O
2-Benzyl-1-methoxy-naphthalene
CAS 68707-66-4C18H16O
![2-[(4-Methylphenyl)methyl]naphthalen-1-ol chemical structure, C18H16O, CAS 62085-40-9](/s/NNWJRURPRFDYDN-UHFFFAOYSA-N.svg)
2-[(4-Methylphenyl)methyl]naphthalen-1-ol
CAS 62085-40-9C18H16O
5,8,9,10-Tetrahydrotetraphen-11(6H)-one
CAS 1470-04-8C18H16O
2-Methyl-1-(9-phenanthrenyl)-1-propanone
CAS 249909-87-3C18H16O
11-Methyl-11,12,15,16-tetrahydro-17H-cyclopenta(a)phenanthren-17-one
CAS 27343-48-2C18H16O
2-Acetyl-9,10-dimethylanthracene
CAS 15254-37-2C18H16O
3,4,5,6-Tetrahydrochrysen-1(2H)-one
CAS 115482-67-2C18H16O
4b,10b,11,12-Tetrahydro-6(5H)-chrysenone
CAS 7496-05-1C18H16O
1-(9,10-Dihydro-9,10-ethanoanthracen-11-yl)ethanone
CAS 6004-64-4C18H16O
(2-Methylphenyl)(naphthalen-1-yl)methanol
CAS 62784-64-9C18H16O
1-(4-Methylphenyl)-5-phenyl-2,4-pentadien-1-one
CAS 30313-22-5C18H16O
Ketone, phenyl 2-phenyl-2-cyclopenten-1-yl
CAS 1601-09-8C18H16O
![Naphthalene, 1-[(4-methoxyphenyl)methyl]- chemical structure, C18H16O, CAS 32891-88-6](/s/HCDJKEYQNXMNRL-UHFFFAOYSA-N.svg)
Naphthalene, 1-[(4-methoxyphenyl)methyl]-
CAS 32891-88-6C18H16O
8,11-Epoxy-5,14-ethenobenzocyclododecene, 6,7,12,13-tetrahydro-
CAS 24178-85-6C18H16O
2-Acetyl-4,5,9,10-tetrahydropyrene
CAS 82799-67-5C18H16O
2,5-Bis(4-methylphenyl)furan
CAS 57196-75-5C18H16O
2,3-Diphenylcyclohex-2-en-1-one
CAS 144193-60-2C18H16O
- 1-Butanone, 1-(9-phenanthrenyl)-646450-30-8C18H16O
- 2-Benzylidene-3,3-dimethyl-2,3-dihydro-1H-inden-1-one55953-72-5C18H16O
- Benzene, 1,1'-[1-(2-propenyloxy)-2-propynylidene]bis-57900-00-2C18H16O
- 4H-Spiro[cyclohexane-1,9'-fluoren]-4-one98656-46-3C18H16O
- (3-(2-Methylnaphthalen-1-yl)phenyl)methanol691905-25-6C18H16O
- 1-(2-Phenylethoxy)naphthalene20900-20-3C18H16O
- Ethanone, 1-(5,6-dihydrodibenzo[a,e]cycloocten-5-yl)-71837-36-0C18H16O
- 1,2,3,4-Tetrahydrotetraphen-4-ol91484-80-9C18H16O
- 8,9,10,11-Tetrahydrobenzo[a]anthracen-8-ol91484-81-0C18H16O
- 3-(Biphenyl-3-yl)cyclohex-2-en-1-one6301-52-6C18H16O
- 3-(4-Phenylphenyl)cyclohex-2-en-1-one6301-53-7C18H16O
- 6,6-Diphenylbicyclo[3.1.0]hexan-2-one22524-16-9C18H16O
- 1-Naphthalen-1-yl-1-phenylethanol69726-39-2C18H16O
- Naphthalene, 1-[(2-methoxyphenyl)methyl]-56268-56-5C18H16O
- 3,4-Dimethyl-2,5-diphenylfuran51181-43-2C18H16O
- 9-((Allyloxy)methyl)anthracene127022-54-2C18H16O
- 2-Methoxy-6-(4-methylphenyl)naphthalene59115-50-3C18H16O
- (3-(4-Methylnaphthalen-1-yl)phenyl)methanol1349719-08-9C18H16O
- 2-Phenyl-5-(2-phenylethyl)furan1222-76-0C18H16O
- 15,16-Dihydro-11-methyl-17H-cyclopenta(a)phenanthren-17-ol40951-13-1C18H16O
- 6-Methylgona-1,3,5(10),6,8,13-hexaen-17-one27343-49-3C18H16O
- 1,2,3,4-Tetrahydrobenzo(a)anthracen-2-ol94903-84-1C18H16O
- 1(2H)-Naphthalenone, 3,4-dihydro-2-[(2-methylphenyl)methylene]-54752-32-8C18H16O
- 1(2H)-Naphthalenone, 3,4-dihydro-2-[(3-methylphenyl)methylene]-54752-31-7C18H16O
- Naphthalen-1-yl(p-tolyl)methanol69295-75-6C18H16O
- Naphthalene, 2-[(phenylmethoxy)methyl]-120375-98-6C18H16O
- 2,5-Dimethyl-3,4-diphenylfuran63806-52-0C18H16O
- 2-[(2-Methoxyphenyl)methyl]naphthalene68299-62-7C18H16O
- 1-Benzyl-2-methoxynaphthalene28306-73-2C18H16O
- 2-[(3-Methylphenoxy)methyl]naphthalene174840-49-4C18H16O
- 1-Methoxy-4-(4-phenylcyclopenta-1,3-dien-1-yl)benzene80109-11-1C18H16O
- 2-Methyl-1,5-diphenylpenta-1,4-dien-3-one14164-67-1C18H16O
- 6-(3,5-Dimethylphenyl)naphthalen-2-ol896427-73-9C18H16O
- (4-Methylnaphthalen-1-yl)(phenyl)methanol856200-24-3C18H16O
- 1-(2-Methylphenyl)-3,4-dihydronaphthalene-2-carbaldehyde350691-08-6C18H16O
- 1-(Anthracen-2-yl)-2-methylpropan-1-one76868-33-2C18H16O
- 2-Benzylidene-7-methyl-3,4-dihydronaphthalen-1(2H)-one41526-45-8C18H16O
- Benz(a)anthracen-1-ol, 1,2,3,4-tetrahydro-60968-00-5C18H16O
- Oxirane, (9,10-dimethyl-2-anthracenyl)-66842-44-2C18H16O
- 2-Methylgona-1,3,5(10),6,8,13-hexaen-17-one27343-51-7C18H16O
- 8,9,10,11-Tetrahydrotetraphen-11-ol91484-82-1C18H16O
- 2,4-Pentadien-1-one, 3-methyl-1,5-diphenyl-, (E,E)-92180-70-6C18H16O
- Methanone, phenyl(2-phenylbicyclo[1.1.1]pent-2-yl)-60584-89-6C18H16O
- 3,4-Bis(phenylmethyl)furan160560-09-8C18H16O
- 2,4-Bis(4-methylphenyl)furan1446-76-0C18H16O
- 2-Benzylidene-4-methyl-3,4-dihydronaphthalen-1(2H)-one879515-28-3C18H16O
- 6-Methoxy-1-(4-methylphenyl)naphthalene648933-77-1C18H16O
- 2-Ethynyl-4-methoxy-1-[2-(4-methylphenyl)ethenyl]benzene648933-58-8C18H16O
- 1-(Anthracen-9-yl)-2-methylpropan-1-one73633-41-7C18H16O
- 2-(2-Phenylethenyl)-3,4-dihydronaphthalen-1(2H)-one863753-55-3C18H16O
- 4-Phenyl-1,4-ethanotetralin-2-one918299-20-4C18H16O
- 2-Propyn-1-one, 1-phenyl-3-(4-propylphenyl)-1613380-88-3C18H16O
- 3-(Cyclopropylmethoxy)-3'-ethynyl-1,1'-biphenyl2742424-93-5C18H16O
- 2-Phenyl-2a,3,4,5-tetrahydroacenaphthylen-1(2H)-one51091-88-4C18H16O
- (2E)-1-(2,3-Dihydro-1H-inden-2-yl)-3-phenylprop-2-en-1-one63261-43-8C18H16O
- 1,2-Diphenylhex-5-en-3-yn-2-ol860252-32-0C18H16O
- (6-(p-Tolyl)naphthalen-2-yl)methanol2896200-80-7C18H16O
- (1,3-Dimethyl-1H-inden-1-yl)(phenyl)methanone62291-84-3C18H16O
- 1-Cinnamyloxyprop-2-ynylbenzene122761-99-3C18H16O
- 2-Methoxy-1-(4-methylphenyl)naphthalene922511-70-4C18H16O
- 2-Methyl-3,4-diphenylcyclopent-3-en-1-one113201-32-4C18H16O
- {1-[(3-Phenylprop-2-en-1-yl)oxy]prop-2-yn-1-yl}benzeneC18H16O
- 7,7-Diphenyl-6-oxabicyclo[3.2.0]hept-1-ene218788-49-9C18H16O
- (2-Benzylnaphthalen-1-yl)methanol648895-07-2C18H16O
- 5-(4-Methylphenyl)-1-phenylpenta-2,4-dien-1-one61712-98-9C18H16O
- 3-Methyl-1,5-diphenylpent-1-en-4-yn-3-ol60184-29-4C18H16O
- 1-[(1R)-1-Phenylethoxy]naphthalene847934-73-0C18H16O
- 2-Benzyl-2-methyl-3-methylidene-2,3-dihydro-1H-inden-1-one88096-24-6C18H16O
- 1-(Anthracen-1-yl)-2-methylpropan-1-one87969-70-8C18H16O
- 2-Methyl-1-(phenanthren-1-yl)propan-1-one87969-64-0C18H16O
- 3-(2-Ethenylphenyl)-3-phenylcyclobutan-1-one918299-13-5C18H16O
- 1-Phenyl-3-(2,4,6-trimethylphenyl)prop-2-yn-1-one5689-92-9C18H16O
- 2-Benzylidene-4,7-dimethyl-2,3-dihydro-1H-inden-1-one1269772-39-5C18H16O
- 1-(Benzyloxy)-2-(1-ethynylcyclopropyl)benzene2229638-32-6C18H16O
- 1-(Benzyloxy)-3-(1-ethynylcyclopropyl)benzene2228490-96-6C18H16O
- 1-(Benzyloxy)-4-(1-ethynylcyclopropyl)benzene2229461-32-7C18H16O
Frequently asked questions
What is the molar mass of C18H16O?
The molar mass of C18H16O is 248.32 g/mol, calculated from standard atomic weights for 18 carbon atoms, 16 hydrogen atoms and 1 oxygen atom. The monoisotopic mass is 248.1201 Da.
How many compounds have the formula C18H16O?
CompoundList lists 108 compounds with the molecular formula C18H16O, including (2E)-3,4-Dihydro-2-((4-methylphenyl)methylene)-1(2H)-naphthalenone, 1-(4-Methylphenyl)-5-phenyl-1,4-pentadien-3-one, 2-Cyclohexen-1-one, 4,4-diphenyl-. 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 C18H16O?
C18H16O 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.