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Molecular formula

C21H14O3

29 compounds have this formula on CompoundList.

Molar mass
314.34g/mol
Monoisotopic mass
314.0943Da
Atoms
38
Elements
3
Rings plus double bonds
15

The formula C21H14O3 describes a molecule made of 21 carbon atoms, 14 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 × 2180.24%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 144.49%
    1.008 × 14 = 14.112 g/mol
  • O Oxygen × 315.27%
    15.999 × 3 = 47.997 g/mol
Look up another formula

Compounds with the formula C21H14O3

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

Showing 1 to 29 of 29 compounds

9-Oxo-3-fluorenecarboxylic acid (phenylmethyl) ester chemical structure, C21H14O3, CAS 433691-80-6
9-Oxo-3-fluorenecarboxylic acid (phenylmethyl) ester
CAS 433691-80-6C21H14O3
Bis(1-naphthyl)carbonate chemical structure, C21H14O3, CAS 3159-41-9
Bis(1-naphthyl)carbonate
CAS 3159-41-9C21H14O3
2-(9H-Fluoren-2-ylcarbonyl)benzoic acid chemical structure, C21H14O3, CAS 77308-57-7
2-(9H-Fluoren-2-ylcarbonyl)benzoic acid
CAS 77308-57-7C21H14O3
4-Hydroxy-3,8-diphenyl-2H-chromen-2-one chemical structure, C21H14O3, CAS 64556-15-6
4-Hydroxy-3,8-diphenyl-2H-chromen-2-one
CAS 64556-15-6C21H14O3
3,4-Diphenyl-7-hydroxycoumarin chemical structure, C21H14O3, CAS 3450-72-4
3,4-Diphenyl-7-hydroxycoumarin
CAS 3450-72-4C21H14O3
(4-Hydroxyphenyl)(2-phenyl-1-benzofuran-3-yl)methanone chemical structure, C21H14O3, CAS 55877-36-6
(4-Hydroxyphenyl)(2-phenyl-1-benzofuran-3-yl)methanone
CAS 55877-36-6C21H14O3
(R)-2,2'-Dihydroxy-[1,1'-binaphthalene]-3-carboxaldehyde chemical structure, C21H14O3, CAS 349149-08-2
(R)-2,2'-Dihydroxy-[1,1'-binaphthalene]-3-carboxaldehyde
CAS 349149-08-2C21H14O3
[2-(4-Hydroxyphenyl)-1-benzofuran-3-yl](phenyl)methanone chemical structure, C21H14O3, CAS 57664-48-9
[2-(4-Hydroxyphenyl)-1-benzofuran-3-yl](phenyl)methanone
CAS 57664-48-9C21H14O3
2-Benzyl-1-hydroxyanthracene-9,10-dione chemical structure, C21H14O3, CAS 54454-84-1
2-Benzyl-1-hydroxyanthracene-9,10-dione
CAS 54454-84-1C21H14O3
9,10-Phenanthrenediol, monobenzoate chemical structure, C21H14O3, CAS 39559-48-3
9,10-Phenanthrenediol, monobenzoate
CAS 39559-48-3C21H14O3
2-({[1,1'-Biphenyl]-4-yl}methylidene)-6-hydroxy-2,3-dihydro-1-benzofuran-3-one chemical structure, C21H14O3, CAS 620546-01-2
2-({[1,1'-Biphenyl]-4-yl}methylidene)-6-hydroxy-2,3-dihydro-1-benzofuran-3-one
CAS 620546-01-2C21H14O3
[1,1':3',1''-Terphenyl]-4,4'',5'-tricarbaldehyde chemical structure, C21H14O3, CAS 1977585-07-1
[1,1':3',1''-Terphenyl]-4,4'',5'-tricarbaldehyde
CAS 1977585-07-1C21H14O3
1-(2-Methoxyphenyl)anthracene-9,10-dione chemical structure, C21H14O3, CAS 20760-60-5
1-(2-Methoxyphenyl)anthracene-9,10-dione
CAS 20760-60-5C21H14O3
Anthraquinone, 1-(m-methoxyphenyl)- chemical structure, C21H14O3, CAS 20600-77-5
Anthraquinone, 1-(m-methoxyphenyl)-
CAS 20600-77-5C21H14O3
5-Hydroxy-2,3-diphenyl-1-benzofuran-4-carbaldehyde chemical structure, C21H14O3, CAS 917867-68-6
5-Hydroxy-2,3-diphenyl-1-benzofuran-4-carbaldehyde
CAS 917867-68-6C21H14O3
7-Oxo-7,8,9,10-tetrahydrobenzo[pqr]tetraphene-10-carboxylic acid chemical structure, C21H14O3, CAS 86803-21-6
7-Oxo-7,8,9,10-tetrahydrobenzo[pqr]tetraphene-10-carboxylic acid
CAS 86803-21-6C21H14O3
2H-Pyran-2-one, 6-phenyl-3-(5-phenyl-2-furanyl)- chemical structure, C21H14O3, CAS 583056-80-8
2H-Pyran-2-one, 6-phenyl-3-(5-phenyl-2-furanyl)-
CAS 583056-80-8C21H14O3
1H-2-Benzopyran-1-one, 6-hydroxy-3,4-diphenyl- chemical structure, C21H14O3, CAS 56412-83-0
1H-2-Benzopyran-1-one, 6-hydroxy-3,4-diphenyl-
CAS 56412-83-0C21H14O3
20,22-Dioxahexacyclo[10.6.5.02,11.03,8.013,18.019,23]tricosa-2(11),3,5,7,9,13,15,17-octaen-21-one chemical structure, C21H14O3, CAS 27525-64-0
20,22-Dioxahexacyclo[10.6.5.02,11.03,8.013,18.019,23]tricosa-2(11),3,5,7,9,13,15,17-octaen-21-one
CAS 27525-64-0C21H14O3
6-Methoxybenzo(a)pyrene-1,3-diol chemical structure, C21H14O3, CAS 74192-59-9
6-Methoxybenzo(a)pyrene-1,3-diol
CAS 74192-59-9C21H14O3
6-Hydroxy-2-[(4-phenylphenyl)methylidene]-2,3-dihydro-1-benzofuran-3-one chemical structure, C21H14O3
6-Hydroxy-2-[(4-phenylphenyl)methylidene]-2,3-dihydro-1-benzofuran-3-one
C21H14O3
2-(4-Phenoxyphenyl)-1H-indene-1,3(2H)-dione chemical structure, C21H14O3, CAS 27533-75-1
2-(4-Phenoxyphenyl)-1H-indene-1,3(2H)-dione
CAS 27533-75-1C21H14O3
3-Hydroxy-7-(naphthalen-1-yl)naphthalene-2-carboxylic acid chemical structure, C21H14O3, CAS 503827-88-1
3-Hydroxy-7-(naphthalen-1-yl)naphthalene-2-carboxylic acid
CAS 503827-88-1C21H14O3
4-((9-Hydroxy-9H-fluoren-9-yl)ethynyl)-6-methyl-2H-pyran-2-one chemical structure, C21H14O3, CAS 650624-74-1
4-((9-Hydroxy-9H-fluoren-9-yl)ethynyl)-6-methyl-2H-pyran-2-one
CAS 650624-74-1C21H14O3

Frequently asked questions

What is the molar mass of C21H14O3?

The molar mass of C21H14O3 is 314.34 g/mol, calculated from standard atomic weights for 21 carbon atoms, 14 hydrogen atoms and 3 oxygen atoms. The monoisotopic mass is 314.0943 Da.

How many compounds have the formula C21H14O3?

CompoundList lists 29 compounds with the molecular formula C21H14O3, including 9-Oxo-3-fluorenecarboxylic acid (phenylmethyl) ester, Bis(1-naphthyl)carbonate, 2-(9H-Fluoren-2-ylcarbonyl)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 C21H14O3?

C21H14O3 has a degree of unsaturation of 15. 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.