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Molecular formula

C18H18O4

334 compounds have this formula on CompoundList.

Molar mass
298.34g/mol
Monoisotopic mass
304.1582Da
Atoms
40
Elements
3
Rings plus double bonds
10

The formula C18H18O4 describes a molecule made of 18 carbon atoms, 18 hydrogen atoms and 4 oxygen 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 × 1872.47%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 186.08%
    1.008 × 18 = 18.144 g/mol
  • O Oxygen × 421.45%
    15.999 × 4 = 63.996 g/mol
Look up another formula

Compounds with the formula C18H18O4

Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.

Showing 301 to 334 of 334 compounds

Methyl 2-(benzyloxy)-3-(2-oxopropyl)benzoate chemical structure, C18H18O4, CAS 88580-04-5
Methyl 2-(benzyloxy)-3-(2-oxopropyl)benzoate
CAS 88580-04-5C18H18O4
2,2,6,6-Tetramethyl-2,3,6,7-tetrahydroanthracene-1,4,5,8-tetrone chemical structure, C18H18O4, CAS 96493-78-6
2,2,6,6-Tetramethyl-2,3,6,7-tetrahydroanthracene-1,4,5,8-tetrone
CAS 96493-78-6C18H18O4
Methyl 2-methoxy-6-(4-methoxystyryl)benzoate chemical structure, C18H18O4, CAS 113345-84-9
Methyl 2-methoxy-6-(4-methoxystyryl)benzoate
CAS 113345-84-9C18H18O4
1,4-Bis(4-methoxyphenyl)butane-2,3-dione chemical structure, C18H18O4, CAS 58133-91-8
1,4-Bis(4-methoxyphenyl)butane-2,3-dione
CAS 58133-91-8C18H18O4
(3R,4R)-3,4-Bis(benzyloxy)dihydrofuran-2(3H)-one chemical structure, C18H18O4, CAS 130412-79-2
(3R,4R)-3,4-Bis(benzyloxy)dihydrofuran-2(3H)-one
CAS 130412-79-2C18H18O4
Benzeneacetic acid,4-(phenoxyacetyl)-,ethyl ester chemical structure, C18H18O4, CAS 63363-00-8
Benzeneacetic acid,4-(phenoxyacetyl)-,ethyl ester
CAS 63363-00-8C18H18O4
1-(4-Methoxy-3-phenylmethoxyphenyl)cyclopropane-1-carboxylic acid chemical structure, C18H18O4, CAS 1056933-71-1
1-(4-Methoxy-3-phenylmethoxyphenyl)cyclopropane-1-carboxylic acid
CAS 1056933-71-1C18H18O4
5-(4,6-Dimethoxynaphthalen-1-yl)-2-methylpenta-2,4-dienoic acid chemical structure, C18H18O4, CAS 89650-06-6
5-(4,6-Dimethoxynaphthalen-1-yl)-2-methylpenta-2,4-dienoic acid
CAS 89650-06-6C18H18O4
2,6,9,10-Tetramethoxyanthracene chemical structure, C18H18O4, CAS 91854-11-4
2,6,9,10-Tetramethoxyanthracene
CAS 91854-11-4C18H18O4
1-(4-Ethoxy-2-hydroxy-5-methoxyphenyl)-3-phenylprop-2-en-1-one chemical structure, C18H18O4, CAS 114389-27-4
1-(4-Ethoxy-2-hydroxy-5-methoxyphenyl)-3-phenylprop-2-en-1-one
CAS 114389-27-4C18H18O4
2-[4-(4-Formylphenoxy)butoxy]benzaldehyde chemical structure, C18H18O4, CAS 587873-74-3
2-[4-(4-Formylphenoxy)butoxy]benzaldehyde
CAS 587873-74-3C18H18O4
(2-Methoxy-2-methyl-4-phenyl-1,3-dioxolan-4-yl)(phenyl)methanone chemical structure, C18H18O4, CAS 67013-80-3
(2-Methoxy-2-methyl-4-phenyl-1,3-dioxolan-4-yl)(phenyl)methanone
CAS 67013-80-3C18H18O4
1,6-Dihydroxy-2,5-diphenylhexane-3,4-dione chemical structure, C18H18O4, CAS 664375-84-2
1,6-Dihydroxy-2,5-diphenylhexane-3,4-dione
CAS 664375-84-2C18H18O4
(3-Methyl-3-phenylbutanoyl) benzenecarboperoxoate chemical structure, C18H18O4, CAS 62698-29-7
(3-Methyl-3-phenylbutanoyl) benzenecarboperoxoate
CAS 62698-29-7C18H18O4
1-(2-Hydroxy-4,6-dimethoxy-3-methylphenyl)-2-phenylprop-2-en-1-one chemical structure, C18H18O4, CAS 61696-89-7
1-(2-Hydroxy-4,6-dimethoxy-3-methylphenyl)-2-phenylprop-2-en-1-one
CAS 61696-89-7C18H18O4
4-(Ethoxycarbonyl)phenyl 4-ethylbenzoate chemical structure, C18H18O4, CAS 90233-48-0
4-(Ethoxycarbonyl)phenyl 4-ethylbenzoate
CAS 90233-48-0C18H18O4
2-Methoxy-4-(7-methoxy-3,5-dimethyl-1-benzofuran-2-yl)phenol chemical structure, C18H18O4, CAS 90053-31-9
2-Methoxy-4-(7-methoxy-3,5-dimethyl-1-benzofuran-2-yl)phenol
CAS 90053-31-9C18H18O4
2-[4-Hydroxy-2-methyl-5-(propan-2-yl)benzoyl]benzoic acid chemical structure, C18H18O4, CAS 56922-86-2
2-[4-Hydroxy-2-methyl-5-(propan-2-yl)benzoyl]benzoic acid
CAS 56922-86-2C18H18O4
4-[4-(3-Methoxyphenyl)butanoyl]benzoic acid chemical structure, C18H18O4, CAS 591247-10-8
4-[4-(3-Methoxyphenyl)butanoyl]benzoic acid
CAS 591247-10-8C18H18O4
(2R)-2-Benzyl-4-oxo-4-phenylmethoxybutanoic acid chemical structure, C18H18O4, CAS 1035609-74-5
(2R)-2-Benzyl-4-oxo-4-phenylmethoxybutanoic acid
CAS 1035609-74-5C18H18O4
(S)-2-Benzyl-4-(benzyloxy)-4-oxobutanoic acid chemical structure, C18H18O4, CAS 1923200-64-9
(S)-2-Benzyl-4-(benzyloxy)-4-oxobutanoic acid
CAS 1923200-64-9C18H18O4
Ethyl 2-(4'-ethoxy-[1,1'-biphenyl]-4-yl)-2-oxoacetate chemical structure, C18H18O4, CAS 1284778-56-8
Ethyl 2-(4'-ethoxy-[1,1'-biphenyl]-4-yl)-2-oxoacetate
CAS 1284778-56-8C18H18O4
3-[3-[(2-Methylpropan-2-yl)oxycarbonyl]phenyl]benzoicacid chemical structure, C18H18O4, CAS 2995288-37-2
3-[3-[(2-Methylpropan-2-yl)oxycarbonyl]phenyl]benzoicacid
CAS 2995288-37-2C18H18O4
Propyl 2-(4-methoxybenzoyl)benzoate chemical structure, C18H18O4, CAS 51476-12-1
Propyl 2-(4-methoxybenzoyl)benzoate
CAS 51476-12-1C18H18O4

Frequently asked questions

What is the molar mass of C18H18O4?

The molar mass of C18H18O4 is 298.34 g/mol, calculated from standard atomic weights for 18 carbon atoms, 18 hydrogen atoms and 4 oxygen atoms. The monoisotopic mass is 304.1582 Da.

How many compounds have the formula C18H18O4?

CompoundList lists 334 compounds with the molecular formula C18H18O4, including Methyl 2-(benzyloxy)-3-(2-oxopropyl)benzoate, 2,2,6,6-Tetramethyl-2,3,6,7-tetrahydroanthracene-1,4,5,8-tetrone, Methyl 2-methoxy-6-(4-methoxystyryl)benzoate. 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 C18H18O4?

C18H18O4 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.