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Molecular formula

C20H18O3

134 compounds have this formula on CompoundList.

Molar mass
306.36g/mol
Monoisotopic mass
306.1256Da
Atoms
41
Elements
3
Rings plus double bonds
12

The formula C20H18O3 describes a molecule made of 20 carbon atoms, 18 hydrogen atoms and 3 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 × 2078.41%
    12.011 × 20 = 240.220 g/mol
  • H Hydrogen × 185.92%
    1.008 × 18 = 18.144 g/mol
  • O Oxygen × 315.67%
    15.999 × 3 = 47.997 g/mol
Look up another formula

Compounds with the formula C20H18O3

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

Showing 101 to 134 of 134 compounds

Benzaldehyde, 2-(1,4-dimethoxy-3-methyl-2-naphthalenyl)- chemical structure, C20H18O3, CAS 827347-02-4
Benzaldehyde, 2-(1,4-dimethoxy-3-methyl-2-naphthalenyl)-
CAS 827347-02-4C20H18O3
Furo[3,2-c]oxepin-4(2H)-one, 3,6,7,8-tetrahydro-2,2-diphenyl- chemical structure, C20H18O3, CAS 835613-69-9
Furo[3,2-c]oxepin-4(2H)-one, 3,6,7,8-tetrahydro-2,2-diphenyl-
CAS 835613-69-9C20H18O3
2-Methoxy-6-[1-(naphthalen-1-yl)ethyl]benzoic acid chemical structure, C20H18O3, CAS 62064-41-9
2-Methoxy-6-[1-(naphthalen-1-yl)ethyl]benzoic acid
CAS 62064-41-9C20H18O3
3-Methoxy-2-[1-(naphthalen-1-yl)ethyl]benzoic acid chemical structure, C20H18O3, CAS 62064-48-6
3-Methoxy-2-[1-(naphthalen-1-yl)ethyl]benzoic acid
CAS 62064-48-6C20H18O3
2,6-Bis(4-methoxyphenyl)phenol chemical structure, C20H18O3, CAS 81979-64-8
2,6-Bis(4-methoxyphenyl)phenol
CAS 81979-64-8C20H18O3
2-(Hydroxydiphenylmethyl)-4-methoxyphenol chemical structure, C20H18O3, CAS 936716-83-5
2-(Hydroxydiphenylmethyl)-4-methoxyphenol
CAS 936716-83-5C20H18O3
(Ethane-1,1,1-triyltris(oxy))tribenzene chemical structure, C20H18O3, CAS 49758-91-0
(Ethane-1,1,1-triyltris(oxy))tribenzene
CAS 49758-91-0C20H18O3
Phenol, 2,6-bis[(4-hydroxyphenyl)methyl]- chemical structure, C20H18O3, CAS 21734-68-9
Phenol, 2,6-bis[(4-hydroxyphenyl)methyl]-
CAS 21734-68-9C20H18O3
Methyl 4-{[(2-methylnaphthalen-1-yl)oxy]methyl}benzoate chemical structure, C20H18O3, CAS 833485-04-4
Methyl 4-{[(2-methylnaphthalen-1-yl)oxy]methyl}benzoate
CAS 833485-04-4C20H18O3
7-Hydroxy-8-(3-methylbut-2-en-1-yl)-3-phenyl-4H-1-benzopyran-4-one chemical structure, C20H18O3, CAS 37118-93-7
7-Hydroxy-8-(3-methylbut-2-en-1-yl)-3-phenyl-4H-1-benzopyran-4-one
CAS 37118-93-7C20H18O3
Methyl 4-{[(7-methylnaphthalen-1-yl)oxy]methyl}benzoate chemical structure, C20H18O3, CAS 833485-02-2
Methyl 4-{[(7-methylnaphthalen-1-yl)oxy]methyl}benzoate
CAS 833485-02-2C20H18O3
Methyl 5-(anthracen-9-yl)-5-oxopentanoate chemical structure, C20H18O3, CAS 1404457-64-2
Methyl 5-(anthracen-9-yl)-5-oxopentanoate
CAS 1404457-64-2C20H18O3
3-[(1E)-2-(4-Ethoxyphenyl)ethenyl]-6-methyl-4H-chromen-4-one chemical structure, C20H18O3, CAS 652968-82-6
3-[(1E)-2-(4-Ethoxyphenyl)ethenyl]-6-methyl-4H-chromen-4-one
CAS 652968-82-6C20H18O3
5-Methoxy-2-[1-(naphthalen-1-yl)ethyl]benzoic acid chemical structure, C20H18O3, CAS 62064-31-7
5-Methoxy-2-[1-(naphthalen-1-yl)ethyl]benzoic acid
CAS 62064-31-7C20H18O3
4-Methoxy-2-[1-(naphthalen-1-yl)ethyl]benzoic acid chemical structure, C20H18O3, CAS 62064-32-8
4-Methoxy-2-[1-(naphthalen-1-yl)ethyl]benzoic acid
CAS 62064-32-8C20H18O3
4-Acetyl-5-hydroxy-5-methyl-2,3-diphenylcyclopent-2-en-1-one chemical structure, C20H18O3, CAS 88964-78-7
4-Acetyl-5-hydroxy-5-methyl-2,3-diphenylcyclopent-2-en-1-one
CAS 88964-78-7C20H18O3
2-Benzoyl-5-methoxy-1,6-dihydro[1,1'-biphenyl]-3(2H)-one chemical structure, C20H18O3, CAS 96570-08-0
2-Benzoyl-5-methoxy-1,6-dihydro[1,1'-biphenyl]-3(2H)-one
CAS 96570-08-0C20H18O3
Ethyl 4-methyl-2,5-diphenylfuran-3-carboxylate chemical structure, C20H18O3, CAS 62664-63-5
Ethyl 4-methyl-2,5-diphenylfuran-3-carboxylate
CAS 62664-63-5C20H18O3
Ethyl (2Z)-2-benzyl-3-hydroxy-5-phenylpent-2-en-4-ynoate chemical structure, C20H18O3, CAS 776297-02-0
Ethyl (2Z)-2-benzyl-3-hydroxy-5-phenylpent-2-en-4-ynoate
CAS 776297-02-0C20H18O3
4-Hydroxy-3-(4-phenylpent-4-en-2-yl)-2H-1-benzopyran-2-one chemical structure, C20H18O3, CAS 92824-17-4
4-Hydroxy-3-(4-phenylpent-4-en-2-yl)-2H-1-benzopyran-2-one
CAS 92824-17-4C20H18O3
2-Methyl-3-phenylprop-2-enoic anhydride chemical structure, C20H18O3, CAS 94549-44-7
2-Methyl-3-phenylprop-2-enoic anhydride
CAS 94549-44-7C20H18O3
4,4'-[(2-Methoxyphenyl)methylene]diphenol chemical structure, C20H18O3, CAS 102077-86-1
4,4'-[(2-Methoxyphenyl)methylene]diphenol
CAS 102077-86-1C20H18O3
(2S)-3-[(Pyren-1-yl)methoxy]propane-1,2-diol chemical structure, C20H18O3, CAS 682344-99-6
(2S)-3-[(Pyren-1-yl)methoxy]propane-1,2-diol
CAS 682344-99-6C20H18O3
(E)-3-(4-Ethoxystyryl)-6-methyl-4H-chromen-4-one chemical structure, C20H18O3
(E)-3-(4-Ethoxystyryl)-6-methyl-4H-chromen-4-one
C20H18O3

Frequently asked questions

What is the molar mass of C20H18O3?

The molar mass of C20H18O3 is 306.36 g/mol, calculated from standard atomic weights for 20 carbon atoms, 18 hydrogen atoms and 3 oxygen atoms. The monoisotopic mass is 306.1256 Da.

How many compounds have the formula C20H18O3?

CompoundList lists 134 compounds with the molecular formula C20H18O3, including Benzaldehyde, 2-(1,4-dimethoxy-3-methyl-2-naphthalenyl)-, Furo[3,2-c]oxepin-4(2H)-one, 3,6,7,8-tetrahydro-2,2-diphenyl-, 2-Methoxy-6-[1-(naphthalen-1-yl)ethyl]benzoic acid. 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 C20H18O3?

C20H18O3 has a degree of unsaturation of 12. 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.