Molecular formula
C15H18O
191 compounds have this formula on CompoundList.
- Molar mass
- 214.31g/mol
- Monoisotopic mass
- 214.1358Da
- Atoms
- 34
- Elements
- 3
- Rings plus double bonds
- 7
The formula C15H18O describes a molecule made of 15 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 × 1584.07%12.011 × 15 = 180.165 g/mol
- H Hydrogen × 188.47%1.008 × 18 = 18.144 g/mol
- O Oxygen × 17.47%15.999 × 1 = 15.999 g/mol
Look up another formula
Compounds with the formula C15H18O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 191 of 191 compounds
1-(Cyclohexylethynyl)-4-methoxybenzene
CAS 870007-59-3C15H18O
![(1R,2S)-2-[2-(4-Ethylphenyl)ethynyl]cyclopentan-1-ol chemical structure, C15H18O, CAS 2165446-75-1](/s/DBAMDBCBZXMBBX-LSDHHAIUSA-N.svg)
(1R,2S)-2-[2-(4-Ethylphenyl)ethynyl]cyclopentan-1-ol
CAS 2165446-75-1C15H18O
![1-[2-(4-Ethylphenyl)ethynyl]cyclopentanol chemical structure, C15H18O, CAS 1413918-73-6](/s/LGLXNOIATSSLGU-UHFFFAOYSA-N.svg)
1-[2-(4-Ethylphenyl)ethynyl]cyclopentanol
CAS 1413918-73-6C15H18O
3-(2,3-Dihydro-1H-inden-4-yl)cyclohexanone
CAS 2302149-16-0C15H18O
9-tert-Butoxy-1,4-dihydro-1,4-methanonaphthalene
CAS 15893-89-7C15H18O
6,7,8,9,10,11-Hexahydro-6-methyl-6,10-methano-5H-benzocyclononen-12-one
CAS 50388-44-8C15H18O
(2E)-3-Methyl-2-(2-phenylethylidene)cyclohexan-1-one
CAS 1383428-37-2C15H18O
(3R)-1-Phenyl-1-nonen-4-yn-3-ol
CAS 736184-48-8C15H18O
![7'-Methyl-3',4'-dihydro-2'H-spiro[cyclopentane-1,1'-naphthalen]-4'-one chemical structure, C15H18O, CAS 860418-93-5](/s/BMDZRYZSSXPYBZ-UHFFFAOYSA-N.svg)
7'-Methyl-3',4'-dihydro-2'H-spiro[cyclopentane-1,1'-naphthalen]-4'-one
CAS 860418-93-5C15H18O
![7'-Ethyl-3',4'-dihydro-2'H-spiro[cyclobutane-1,1'-naphthalen]-4'-one chemical structure, C15H18O, CAS 2168980-67-2](/s/KPJUBMQKQXSYQN-UHFFFAOYSA-N.svg)
7'-Ethyl-3',4'-dihydro-2'H-spiro[cyclobutane-1,1'-naphthalen]-4'-one
CAS 2168980-67-2C15H18O
![7'-(Propan-2-yl)-3',4'-dihydro-2'H-spiro[cyclopropane-1,1'-naphthalen]-4'-one chemical structure, C15H18O, CAS 2167102-91-0](/s/FCBPKEMXZYURLU-UHFFFAOYSA-N.svg)
7'-(Propan-2-yl)-3',4'-dihydro-2'H-spiro[cyclopropane-1,1'-naphthalen]-4'-one
CAS 2167102-91-0C15H18O
![5'-Methyl-3',4'-dihydro-2'H-spiro[cyclopentane-1,1'-naphthalen]-4'-one chemical structure, C15H18O, CAS 2167842-33-1](/s/ALPIFIUNRYCJOC-UHFFFAOYSA-N.svg)
5'-Methyl-3',4'-dihydro-2'H-spiro[cyclopentane-1,1'-naphthalen]-4'-one
CAS 2167842-33-1C15H18O
1-Phenylnon-2-yn-1-one
CAS 56517-81-8C15H18O
1-(4-Phenylcyclohexylidene)-2-propanone
CAS 175439-35-7C15H18O
![5-Phenylbicyclo[3.3.1]nonan-2-one chemical structure, C15H18O, CAS 61042-13-5](/s/GYZZTDZBAWMERN-UHFFFAOYSA-N.svg)
5-Phenylbicyclo[3.3.1]nonan-2-one
CAS 61042-13-5C15H18O
1-(2-Methylbutan-2-yl)naphthalen-2-ol
CAS 64807-65-4C15H18O
6-Methoxy-1,2,3,4-tetramethylnaphthalene
CAS 38454-57-8C15H18O
(4aR,10aS)-1,3,4,9,10,10a-Hexahydrophenanthrene-4a(2H)-carbaldehyde
CAS 79384-86-4C15H18O
![2-Propyl-5,6-dihydro[1,1'-biphenyl]-3(4H)-one chemical structure, C15H18O, CAS 89228-95-5](/s/MDQZFNOXDDTVKW-UHFFFAOYSA-N.svg)
2-Propyl-5,6-dihydro[1,1'-biphenyl]-3(4H)-one
CAS 89228-95-5C15H18O
3-Butyl-2-phenylcyclopent-2-en-1-one
CAS 96405-96-8C15H18O
2-(Cycloheptylidenemethyl)benzaldehyde
CAS 111653-88-4C15H18O
2,4,6-Trimethyl-4-(4-methylphenyl)-4H-pyran
CAS 112521-06-9C15H18O
3,8-Dimethyl-5-(propan-2-yl)azulen-1-ol
CAS 127808-11-1C15H18O
![1-[2-(4-Methylphenyl)ethynyl]cyclohexanol chemical structure, C15H18O, CAS 158697-42-8](/s/IRPIVBVLSYWGSF-UHFFFAOYSA-N.svg)
1-[2-(4-Methylphenyl)ethynyl]cyclohexanol
CAS 158697-42-8C15H18O
- 5-Ethenyl-2,2-dimethyl-3-phenylcyclopentan-1-one138352-33-7C15H18O
- (-)-5,5A,6,10-Tetrahydro-6,6-dimethyl-4H-benzo[5,6]cyclohepta[1,2-b]furan56881-49-3C15H18O
- 2-Methyl-6-(4-methylphenyl)hepta-2,5-dien-4-one88702-47-0C15H18O
- 2-Methyl-1-phenylocta-1,5,7-trien-3-ol89131-85-1C15H18O
- 1-Methoxy-4-{[2-(2-methylprop-1-en-1-yl)cyclopropylidene]methyl}benzene89657-18-1C15H18O
- 9-(Cyclohex-1-en-1-yl)nona-2,4,6,8-tetraenal114489-88-2C15H18O
- 1-(Hex-5-en-1-yl)-1,3-dihydro-2H-inden-2-one193737-74-5C15H18O
- (1S,6S)-4,5,6-Trimethyl-1,6-dihydro[1,1'-biphenyl]-3(2H)-one185256-83-1C15H18O
- 4,6,6-Trimethyl-5,6-dihydro[1,1'-biphenyl]-2(1H)-one16776-16-2C15H18O
- 1a,1b,3,3a,6,6a,6b,7,8,8a-Decahydro-1H-cyclopropa[5',6']benzo[1',2':7,8]azuleno[5,6-b]oxirene21883-89-6C15H18O
- 7-Methyl-1-phenylocta-2,6-dien-1-one395056-89-0C15H18O
- 2-Ethenylidene-1-phenylheptan-1-one66389-84-2C15H18O
- 4-(1-Phenylpropyl)cyclohex-2-en-1-one63574-57-2C15H18O
- (4aS,10aS)-4a-Methyl-3,4,4a,9,10,10a-hexahydrophenanthren-1(2H)-one62318-99-4C15H18O
- 3-Methyl-8-phenylocta-3,7-dienal61619-14-5C15H18O
- 3-Methyl-5-(2,4,6-trimethylphenyl)penta-2,4-dienal75001-23-9C15H18O
- 2-Butyl-2-methyl-3-methylidene-2,3-dihydro-1H-inden-1-one88096-21-3C15H18O
- {2-[(Cyclohex-1-en-1-yl)oxy]prop-2-en-1-yl}benzene827615-89-4C15H18O
- [(6R)-6-(Ethenyloxy)hept-4-yn-1-yl]benzene825628-13-5C15H18O
- [(1R)-1-(Ethenyloxy)hept-2-yn-1-yl]benzene825628-09-9C15H18O
- [3-(Ethenyloxy)-3-methylhex-4-yn-1-yl]benzene825627-95-0C15H18O
- [6-(Ethenyloxy)hept-4-yn-1-yl]benzene825627-93-8C15H18O
- 6-Phenyl-3-(prop-2-en-1-yl)hex-5-en-2-one821770-40-5C15H18O
- 5,6-Dimethyl-1-phenylhept-1-yn-3-one918638-78-5C15H18O
- 4,4,5-Trimethyl-1-phenylhex-1-yn-3-one918638-77-4C15H18O
- 4-Ethyl-1-phenylhept-1-yn-3-one918638-75-2C15H18O
- 1-(Cyclohex-1-en-1-yl)-2-phenylpropan-1-one917906-04-8C15H18O
- 2,2,4-Trimethyl-4,5-dihydro[1,1'-biphenyl]-3(2H)-one552425-61-3C15H18O
- 7-Methyl-1-phenylocta-1,6-dien-3-one538325-61-0C15H18O
- 3,6-Diethenyl-2-phenyloxane38189-12-7C15H18O
- 2-Cyclohexyl-2,3-dihydro-1H-inden-1-one760947-63-5C15H18O
- 4-(4-Pentylphenyl)-3-butyn-2-one731852-03-2C15H18O
- Cyclohexanol, 1-[(2-methylphenyl)ethynyl]-869808-75-3C15H18O
- 1-(Cyclohexylmethoxy)-4-ethynylbenzene2299202-50-7C15H18O
- 3-(Cycloheptylidenemethyl)benzaldehyde2137737-72-3C15H18O
- 4-(Cycloheptylidenemethyl)benzaldehyde2138164-64-2C15H18O
- 2-(5,5-Dimethylcyclohex-1-en-1-yl)benzaldehyde2138265-10-6C15H18O
- 4-(3,3-Dimethylcyclohex-1-en-1-yl)benzaldehyde2138093-87-3C15H18O
- 3-(3,3-Dimethylcyclohex-1-en-1-yl)benzaldehyde2138533-46-5C15H18O
- 4-[2-(1-Methylcyclopropyl)phenyl]-3,6-dihydro-2H-pyran2168868-92-4C15H18O
- 4-[3-(1-Methylcyclopropyl)phenyl]-3,6-dihydro-2H-pyran2168166-32-1C15H18O
- 4-[4-(1-Methylcyclopropyl)phenyl]-3,6-dihydro-2H-pyran2168528-43-4C15H18O
- 1-[1-(5,6,7,8-Tetrahydronaphthalen-1-yl)cyclopropyl]ethan-1-one2228301-94-6C15H18O
- (2S)-4-(4-Methylnaphthalen-1-yl)butan-2-ol2227689-06-5C15H18O
- 1-(1-Phenylcyclopentyl)cyclopropane-1-carbaldehyde2228328-67-2C15H18O
- (2R)-4-(4-Methylnaphthalen-1-yl)butan-2-ol2227832-75-7C15H18O
- 2-Methyl-1-(4-methylnaphthalen-1-yl)propan-2-ol2229325-48-6C15H18O
- 6-(But-3-yn-2-yl)-2,2-dimethyl-3,4-dihydro-2H-1-benzopyran2228634-80-6C15H18O
- 4-(4-Methylnaphthalen-1-yl)butan-2-ol2029318-28-1C15H18O
- 2-Methyl-2-(4-methylnaphthalen-1-yl)propan-1-ol2228179-65-3C15H18O
- 3-(5,5-Dimethylcyclohex-1-en-1-yl)benzaldehyde2137839-05-3C15H18O
- 1-[1-(1,2,3,4-Tetrahydronaphthalen-1-yl)cyclopropyl]ethan-1-one2228192-35-4C15H18O
- 4-(1-Phenylcyclopentyl)but-3-en-2-one2229653-58-9C15H18O
- 1-(4-tert-Butylphenyl)penta-1,4-dien-3-one2172633-60-0C15H18O
- 1,1-Dimethyl-6-phenylspiro[3.3]heptan-2-one2703782-08-3C15H18O
- 4-(5,5-Dimethylcyclohex-1-en-1-yl)benzaldehyde2138412-57-2C15H18O
- 6-(But-3-yn-1-yl)-2,2-dimethyl-3,4-dihydro-2H-1-benzopyran2228714-02-9C15H18O
- Senarguine B1174182-46-7C15H18O
- 5H-Dibenzo[a,d]cyclohepten-5-one, 1,2,3,4,4a,10,11,11a-octahydro-7351-59-9C15H18O
- (5Z)-2-Methyl-6-(4-methylphenyl)hepta-2,5-dien-4-oneC15H18O
- 1-[2-(3-Methylphenyl)ethynyl]cyclohexanol1334217-15-0C15H18O
- (2E,8E,10E)-Pentadeca-2,8,10-trien-4,6-diyn-1-ol32768-93-7C15H18O
- 2-(4-Vinylphenoxy)bicyclo[2.2.1]heptane1036723-55-3C15H18O
- (3R,8S)-Tricyclo[9.4.0.03,8]pentadeca-1(15),11,13-trien-2-one27912-07-8C15H18O
- (4aR,9aS)-4a-Methyl-1,2,3,4,9a,10-hexahydroanthracen-9-one115561-16-5C15H18O
- (1E,5E)-2-Methyl-1-phenylocta-1,5,7-trien-3-olC15H18O
- (2E,4E,6E)-9-(Cyclohexen-1-yl)nona-2,4,6,8-tetraenalC15H18O
Frequently asked questions
What is the molar mass of C15H18O?
The molar mass of C15H18O is 214.31 g/mol, calculated from standard atomic weights for 15 carbon atoms, 18 hydrogen atoms and 1 oxygen atom. The monoisotopic mass is 214.1358 Da.
How many compounds have the formula C15H18O?
CompoundList lists 191 compounds with the molecular formula C15H18O, including 1-(Cyclohexylethynyl)-4-methoxybenzene, (1R,2S)-2-[2-(4-Ethylphenyl)ethynyl]cyclopentan-1-ol, 1-[2-(4-Ethylphenyl)ethynyl]cyclopentanol. 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 C15H18O?
C15H18O has a degree of unsaturation of 7. 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.