Molecular formula

C₂₃H₁₈O

24 compounds have this formula on CompoundList.

Molar mass: 310.40g/mol
Monoisotopic mass: 310.1358Da
Atoms: 42
Elements: 3
Rings plus double bonds: 15

The formula C23H18O describes a molecule made of 23 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 × 2389.00%
12.011 × 23 = 276.253 g/mol
H Hydrogen × 185.85%
1.008 × 18 = 18.144 g/mol
O Oxygen × 15.15%
15.999 × 1 = 15.999 g/mol

Look up another formula

Compounds with the formula C23H18O

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

Showing 1 to 24 of 24 compounds

Alpha,alpha-diphenyl-1-naphthalenemethanol

CAS 630-95-5C₂₃H₁₈O

2,3,4-Triphenylcyclopent-3-en-1-one

CAS 5448-07-7C₂₃H₁₈O

4',5-Diphenyl-2,4-pentadienophenone

CAS 30313-21-4C₂₃H₁₈O

Naphthalen-2-yl(diphenyl)methanol

CAS 85328-29-6C₂₃H₁₈O

(2Z)-2-[(4-Methylphenyl)methylidene]-3-phenyl-2,3-dihydro-1H-inden-1-one

CAS 337921-39-8C₂₃H₁₈O

4-(Diphenylmethyl)naphthalen-1-ol

CAS 6274-86-8C₂₃H₁₈O

1,3,5-Triphenylpent-4-yn-1-one

CAS 34877-80-0C₂₃H₁₈O

2,4,6-Triphenyl-4H-pyran

CAS 801-06-9C₂₃H₁₈O

1(2H)-Naphthalenone, 3,4-dihydro-2-((1,1'-biphenyl)-4-ylmethylene)-, (E)-

CAS 132794-04-8C₂₃H₁₈O

2-Cyclopenten-1-one, 2,3,4-triphenyl-

CAS 4970-80-3C₂₃H₁₈O

1-(2,3-Diphenyl-1H-inden-1-yl)ethanone

CAS 64749-02-6C₂₃H₁₈O

5-(4-Methylphenyl)-2,3-diphenylfuran

CAS 68630-10-4C₂₃H₁₈O

3-Perylenepropanol

CAS 830346-82-2C₂₃H₁₈O

Indeno[2,1-b]pyran, 2-ethyl-9-(1H-inden-2-yl)-

CAS 62224-86-6C₂₃H₁₈O

Indeno[2,1-b]pyran, 9-(1H-inden-2-yl)-2,4-dimethyl-

CAS 62096-49-5C₂₃H₁₈O

1,3-Di(naphthalen-2-yl)propan-2-one

CAS 21918-38-7C₂₃H₁₈O

1-(2-(Phenanthren-9-yl)phenyl)propan-2-one

CAS 1013933-56-6C₂₃H₁₈O

1-{3-[(3-Benzylphenyl)methyl]phenyl}prop-2-yn-1-one

CAS 143328-35-2C₂₃H₁₈O

1,2,5-Triphenylcyclopenta-2,4-dien-1-ol

CAS 67152-55-0C₂₃H₁₈O

1,3-Bis(2-methylphenyl)-2H-inden-2-one

CAS 88195-06-6C₂₃H₁₈O

2-(2-Benzylcyclohexa-2,4-dien-1-ylidene)naphthalen-1(2H)-one

CAS 51431-87-9C₂₃H₁₈O

2-(2-Benzylcyclohexa-2,4-dien-1-ylidene)naphthalen-1-one

C₂₃H₁₈O

(E)-2-(4-Methylbenzylidene)-3-phenyl-2,3-dihydro-1H-inden-1-one

CAS 118485-44-2C₂₃H₁₈O

1_(6_Methyl_10_phenylphenanthren_2_yl)ethan_1_one

CAS 1646883-00-2C₂₃H₁₈O

Frequently asked questions

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What is the molar mass of C23H18O?

The molar mass of C23H18O is 310.40 g/mol, calculated from standard atomic weights for 23 carbon atoms, 18 hydrogen atoms and 1 oxygen atom. The monoisotopic mass is 310.1358 Da.

How many compounds have the formula C23H18O?

CompoundList lists 24 compounds with the molecular formula C23H18O, including Alpha,alpha-diphenyl-1-naphthalenemethanol, 2,3,4-Triphenylcyclopent-3-en-1-one, 4',5-Diphenyl-2,4-pentadienophenone. 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 C23H18O?

C23H18O 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.