Molecular formula

C₂₅H₁₈O

27 compounds have this formula on CompoundList.

Molar mass: 334.42g/mol
Monoisotopic mass: 334.1358Da
Atoms: 44
Elements: 3
Rings plus double bonds: 17

The formula C25H18O describes a molecule made of 25 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 × 2589.79%
12.011 × 25 = 300.275 g/mol
H Hydrogen × 185.43%
1.008 × 18 = 18.144 g/mol
O Oxygen × 14.78%
15.999 × 1 = 15.999 g/mol

Look up another formula

Compounds with the formula C25H18O

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

Showing 1 to 27 of 27 compounds

4,4'-Diphenylbenzophenone

CAS 3478-90-8C₂₅H₁₈O

3H-Naphtho[2,1-b]pyran, 3,3-diphenyl-

CAS 4222-20-2C₂₅H₁₈O

4-(4-Biphenylyl)benzophenone

CAS 5623-42-7C₂₅H₁₈O

9-Biphenyl-4-YL-9H-fluoren-9-ol

CAS 22653-07-2C₂₅H₁₈O

5'-Phenyl-[1,1':3',1''-terphenyl]-2'-carbaldehyde

CAS 85390-98-3C₂₅H₁₈O

Methanone, bis((1,1'-biphenyl)yl)-

CAS 72776-75-1C₂₅H₁₈O

9-(2-Phenylphenyl)fluoren-9-ol

CAS 67665-44-5C₂₅H₁₈O

1,5-Bis(2-naphthyl)-1,4-pentadien-3-one

CAS 41662-78-6C₂₅H₁₈O

1-[1,1'-Biphenyl]-4-yl-3-(1-naphthyl)prop-2-en-1-one

CAS 65962-35-8C₂₅H₁₈O

9,9-Diphenylxanthene

CAS 102892-77-3C₂₅H₁₈O

2,2-Diphenyl-2H-benzo[g]chromene

CAS 5257-16-9C₂₅H₁₈O

Anthracen-9-yl(naphthalen-1-yl)methanol

CAS 79760-52-4C₂₅H₁₈O

2,2-Diphenyl-2H-naphtho[1,2-b]pyran

CAS 856-94-0C₂₅H₁₈O

Methanone, phenyl[1,1':2',1''-terphenyl]-2-yl-

CAS 377092-23-4C₂₅H₁₈O

9,9-Diphenyl-9H-fluoren-2-ol

CAS 2129175-85-3C₂₅H₁₈O

Indeno[2,1-b]pyran, 9-methyl-2,4-diphenyl-

CAS 62224-62-8C₂₅H₁₈O

1-(3,3-Diphenyl-2-propen-1-ylidene)-2(1H)-naphthalenone

CAS 174093-00-6C₂₅H₁₈O

(E)-1,5-Diphenyl-3-(2-phenylethynyl)pent-1-en-4-yn-3-ol

CAS 5394-80-9C₂₅H₁₈O

4-Methyl-2,9-diphenylindeno[2,1-B]pyran

CAS 62095-93-6C₂₅H₁₈O

1-[(Naphthalen-1-yl)methoxy]anthracene

CAS 917985-34-3C₂₅H₁₈O

3-[4-(Naphthalen-1-yl)phenyl]-1-phenylprop-2-en-1-one

CAS 923037-25-6C₂₅H₁₈O

2,4-Diphenyl-4H-naphtho[2,3-b]pyran

CAS 5257-15-8C₂₅H₁₈O

2,4-Diphenyl-2H-naphtho[1,2-b]pyran

CAS 857-46-5C₂₅H₁₈O

[1,1':3',1''-Terphenyl]-5'-yl(phenyl)methanone

CAS 2769091-16-7C₂₅H₁₈O

Frequently asked questions

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What is the molar mass of C25H18O?

The molar mass of C25H18O is 334.42 g/mol, calculated from standard atomic weights for 25 carbon atoms, 18 hydrogen atoms and 1 oxygen atom. The monoisotopic mass is 334.1358 Da.

How many compounds have the formula C25H18O?

CompoundList lists 27 compounds with the molecular formula C25H18O, including 4,4'-Diphenylbenzophenone, 3H-Naphtho[2,1-b]pyran, 3,3-diphenyl-, 4-(4-Biphenylyl)benzophenone. 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 C25H18O?

C25H18O has a degree of unsaturation of 17. 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.