C18H20O
165 compounds have this formula on CompoundList.
- Molar mass
- 252.36g/mol
- Monoisotopic mass
- 252.1514Da
- Atoms
- 39
- Elements
- 3
- Rings plus double bonds
- 9
The formula C18H20O describes a molecule made of 18 carbon atoms, 20 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 × 1885.67%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 207.99%1.008 × 20 = 20.160 g/mol
- O Oxygen × 16.34%15.999 × 1 = 15.999 g/mol
Compounds with the formula C18H20O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 165 of 165 compounds
![1-([1,1'-Biphenyl]-4-yl)-2-methylpentan-1-one chemical structure, C18H20O, CAS 59662-28-1](/s/UJTDOWFEBUTOIH-UHFFFAOYSA-N.svg)
![2-[1-(2-Ethenylphenyl)ethyl]-4,6-dimethylphenol chemical structure, C18H20O, CAS 58448-73-0](/s/CCGSRSKDZNVRRX-UHFFFAOYSA-N.svg)
![1-(4'-Isobutyl-[1,1'-biphenyl]-2-yl)ethanone chemical structure, C18H20O, CAS 1274742-91-4](/s/HTDPDMNITHPZJP-UHFFFAOYSA-N.svg)
![alpha-Cyclopentyl[1,1'-biphenyl]-4-methanol chemical structure, C18H20O, CAS 1281202-16-1](/s/CKWBGHFECRQVLM-UHFFFAOYSA-N.svg)
![2,3-Dimethyl-1-[(propan-2-yl)oxy]-9H-fluorene chemical structure, C18H20O, CAS 89907-32-4](/s/GBHZJNVHSDMYDG-UHFFFAOYSA-N.svg)
![2-[(4-Ethoxyphenyl)methyl]-2,3-dihydro-1H-indene chemical structure, C18H20O, CAS 846016-61-3](/s/WDWSGKXXAKJZGZ-UHFFFAOYSA-N.svg)
![4'-Isobutyl-5-methyl-[1,1'-biphenyl]-2-carbaldehyde chemical structure, C18H20O, CAS 1558198-78-9](/s/MOKXDIQOJZSOLY-UHFFFAOYSA-N.svg)
![1-[(1E)-3-Phenoxyprop-1-en-1-yl]-4-(propan-2-yl)benzene chemical structure, C18H20O, CAS 1189373-40-7](/s/RFQDVPWNWJYQIJ-VOTSOKGWSA-N.svg)
![1-[(4-Methylphenyl)methoxy]-3-(2-methylprop-2-en-1-yl)benzene chemical structure, C18H20O, CAS 1305324-04-2](/s/NDMMAPMSFKMEPK-UHFFFAOYSA-N.svg)
![1-(4'-Methyl-[1,1'-biphenyl]-4-yl)cyclopentanol chemical structure, C18H20O, CAS 3002527-19-4](/s/CDZWVCVXWANSAP-UHFFFAOYSA-N.svg)
![2-Ethoxy-9-(4-methylphenyl)bicyclo[4.2.1]nona-2,4,7-triene chemical structure, C18H20O, CAS 7229-98-3](/s/QCHHDTMYHVITCY-UHFFFAOYSA-N.svg)
![1-Methoxy-4-[1-(4-methylphenyl)but-3-en-1-yl]benzene chemical structure, C18H20O, CAS 134310-99-9](/s/LNVBLCYICHZDTD-UHFFFAOYSA-N.svg)
![2-[Cyclopentyl(phenyl)methyl]phenol chemical structure, C18H20O, CAS 66585-71-5](/s/DQIFEQDWGJFTGH-UHFFFAOYSA-N.svg)
![1-Phenyl-1-[4-(propan-2-yl)phenyl]propan-2-one chemical structure, C18H20O, CAS 122916-83-0](/s/FVQXDGHEYSUVGA-UHFFFAOYSA-N.svg)
![2-[2-(Naphthalen-1-yl)propyl]cyclopentan-1-one chemical structure, C18H20O, CAS 115338-37-9](/s/IGAQEZNXMIFXDX-UHFFFAOYSA-N.svg)
- 2,2-Dimethyl-1-(4-methylphenyl)-3-phenylpropan-1-one113598-55-3C18H20O
- 3-(5-Isopropyl-3,8-dimethylazulen-1-yl)acrylaldehyde101742-87-4C18H20O
- 4-Methyl-2,2-diphenylpent-4-en-1-ol155934-15-9C18H20O
- 4'-Cyclohexyl[1,1'-biphenyl]-4-ol77702-34-2C18H20O
- 1-[(Z)-3-Phenylprop-2-enoxy]propylbenzene93902-66-0C18H20O
- 1-(4'-Propyl[1,1'-biphenyl]-4-yl)-1-propanone95149-42-1C18H20O
- 1-(6,7-Dimethylnaphthalen-1-yl)hex-5-en-1-one95544-14-2C18H20O
- 1,1'-(3-Methoxypent-1-ene-1,5-diyl)dibenzene53963-36-3C18H20O
- (3S)-1-([1,1'-Biphenyl]-4-yl)-3-methylpentan-1-one66295-56-5C18H20O
- 4-(2',3-Dimethyl[1,1'-biphenyl]-2-yl)but-3-en-2-ol656232-17-6C18H20O
- (1R,3S)-2,2-Dimethyl-3-phenyl-1,2,3,4-tetrahydronaphthalen-1-ol62082-76-2C18H20O
- (1R,3R)-2,2-Dimethyl-3-phenyl-1,2,3,4-tetrahydronaphthalen-1-ol62082-77-3C18H20O
- 2-Phenyl-1-[2-(prop-1-en-2-yl)cyclopent-1-en-1-yl]but-2-en-1-one918403-78-8C18H20O
- 2-Phenyl-1-[2-(prop-1-en-2-yl)cyclopent-1-en-1-yl]but-3-en-1-one918403-72-2C18H20O
- 4,4-Dimethyl-1-phenyl-1,2,3,4-tetrahydronaphthalen-1-ol58978-26-0C18H20O
- [4-(Benzyloxy)-2-methylbut-2-en-1-yl]benzene56506-78-6C18H20O
- 2,2',3',5',6'-Pentamethyl[1,1'-biphenyl]-4-carboxaldehyde1533137-89-1C18H20O
- 2',3',5,5',6'-Pentamethyl[1,1'-biphenyl]-2-carboxaldehyde1551761-52-4C18H20O
- 2,2-Dimethyl-1-[2-(phenylmethyl)phenyl]-1-propanone676593-30-9C18H20O
- 4'-Isobutyl-6-methyl-[1,1'-biphenyl]-3-carbaldehyde1974877-54-7C18H20O
- 2-Naphthalenyl(2,2,3,3-tetramethylcyclopropyl)methanone1715691-64-7C18H20O
- alpha-Cyclopentyl-1,2-dihydro-5-acenaphthylenemethanol1771198-61-8C18H20O
- 3-Isobutoxy-3'-vinyl-1,1'-biphenyl2990523-36-7C18H20O
- 1-[1-(Diphenylmethyl)cyclopropyl]ethan-1-ol2228440-38-6C18H20O
- [2,2-Dimethyl-1-(2-phenylphenyl)cyclopropyl]methanol2228321-63-7C18H20O
- 4-(3-tert-Butylphenyl)-3-methylbenzaldehyde2137676-94-7C18H20O
- [1-(Diphenylmethyl)cyclobutyl]methanol2229470-47-5C18H20O
- 1-(1,2-Dihydroacenaphthylen-5-yl)cyclohexanol3002537-61-0C18H20O
- 1-tert-Butyl-3-phenyl-1,3-dihydro-2-benzofuran89593-97-5C18H20O
- Trans-1-(tert-butyl)-3-phenyl-1,3-dihydroisobenzofuran89593-98-6C18H20O
- (1R,2S)-2-([1,1'-Biphenyl]-4-yl)cyclohexanol179601-91-3C18H20O
- 1-Benzyl-5-methoxy-1,2,3,4-tetrahydronaphthalene690232-04-3C18H20O
- 2',3',5',6,6'-Pentamethyl[1,1'-biphenyl]-3-carboxaldehyde1981536-50-8C18H20O
- 1-(1,2-Dihydroacenaphthylen-5-yl)-3,3-dimethylbutan-1-one1777522-01-6C18H20O
- Cis-1-(tert-butyl)-3-phenyl-1,3-dihydroisobenzofuranC18H20O
- 1-(3-Methylbut-3-enyl)-4-phenylmethoxybenzene1256478-31-5C18H20O
- 2-(4-tert-Butyl-phenylethynyl)-cyclohex-2-enone1309071-13-3C18H20O
- Cyclopropyl(4'-ethyl-[1,1'-biphenyl]-4-yl)methanol3002490-03-8C18H20O
- (4S)-4-(4-Methylphenyl)-1-phenylpentan-3-one89037-32-1C18H20O
- (1S,3R)-1-tert-Butyl-3-phenyl-1,3-dihydro-2-benzofuranC18H20O
- (1S,3S)-1-tert-Butyl-3-phenyl-1,3-dihydro-2-benzofuranC18H20O
Frequently asked questions
What is the molar mass of C18H20O?
The molar mass of C18H20O is 252.36 g/mol, calculated from standard atomic weights for 18 carbon atoms, 20 hydrogen atoms and 1 oxygen atom. The monoisotopic mass is 252.1514 Da.
How many compounds have the formula C18H20O?
CompoundList lists 165 compounds with the molecular formula C18H20O, including 2-(Hept-1-yn-1-yl)-6-methoxynaphthalene, 1-([1,1'-Biphenyl]-4-yl)-2-methylpentan-1-one, 2-[1-(2-Ethenylphenyl)ethyl]-4,6-dimethylphenol. 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 C18H20O?
C18H20O has a degree of unsaturation of 9. 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.