Molecular formula

C₂₇H₂₀

17 compounds have this formula on CompoundList.

Molar mass: 344.46g/mol
Monoisotopic mass: 347.1666Da
Atoms: 47
Elements: 2
Rings plus double bonds: 18

The formula C27H20 describes a molecule made of 27 carbon atoms and 20 hydrogen 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 × 2794.15%
12.011 × 27 = 324.297 g/mol
H Hydrogen × 205.85%
1.008 × 20 = 20.160 g/mol

Look up another formula

Compounds with the formula C27H20

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

Showing 1 to 17 of 17 compounds

1,1,3-Triphenylindene

CAS 4614-01-1C₂₇H₂₀

Benzene, 1,1',1'',1'''-(1,2-propadiene-1,3-diylidene)tetrakis-

CAS 1674-18-6C₂₇H₂₀

9-(9H-Fluoren-9-ylmethyl)-9H-fluorene

CAS 3912-46-7C₂₇H₂₀

1,2,3-Triphenyl-1H-indene

CAS 38274-35-0C₂₇H₂₀

Propyne, tetraphenyl-

CAS 20143-13-9C₂₇H₂₀

(R)-3,5-Dihydrospiro[cyclohepta[2,1-a:3,4-a']dinaphthalene-4,1'-cyclopentane]-2',4'-diene

CAS 136425-33-7C₂₇H₂₀

2-[(E)-2-(4-Methylphenyl)ethenyl]benzo[c]phenanthrene

CAS 36393-46-1C₂₇H₂₀

9-[2-(4-Methylnaphthalen-1-yl)ethenyl]phenanthrene

CAS 62131-68-4C₂₇H₂₀

2',3'-Diphenylspiro[bicyclo[4.1.0]hepta-2,4-diene-7,1'-indene]

CAS 36677-46-0C₂₇H₂₀

3H-Cyclopenta[6,7]cycloocta[2,1-a:3,4-a']dinaphthalene, 5,7-dihydro-, (R)-

CAS 136425-32-6C₂₇H₂₀

1,3,3-Triphenyl(1,2,3-13C3)propa-1,2-dienylbenzene

CAS 96165-48-9C₂₇H₂₀

5,6-Diphenyl-9H-cyclohepta[a]naphthalene

CAS 61779-47-3C₂₇H₂₀

5,6-Diphenyl-11H-cyclohepta[a]naphthalene

CAS 61779-49-5C₂₇H₂₀

5,11-Diphenyl-8H-cyclohepta[b]naphthalene

CAS 95895-30-0C₂₇H₂₀

2,7-Dimethyl-9,9_-spirobifluorene

CAS 1393098-97-9C₂₇H₂₀

4-(9H-Fluoren-9-ylidene)-1,2,3,4-tetrahydrophenanthrene

CAS 143465-72-9C₂₇H₂₀

(4Z,10bZ,16aZ)-14,16-Dihydro-1H-cyclopenta[6,7]cycloocta[2,1-a:3,4-a']dinaphthalene

CAS 125443-43-8C₂₇H₂₀

Frequently asked questions

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What is the molar mass of C27H20?

The molar mass of C27H20 is 344.46 g/mol, calculated from standard atomic weights for 27 carbon atoms and 20 hydrogen atoms. The monoisotopic mass is 347.1666 Da.

How many compounds have the formula C27H20?

CompoundList lists 17 compounds with the molecular formula C27H20, including 1,1,3-Triphenylindene, Benzene, 1,1',1'',1'''-(1,2-propadiene-1,3-diylidene)tetrakis-, 9-(9H-Fluoren-9-ylmethyl)-9H-fluorene. 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 C27H20?

C27H20 has a degree of unsaturation of 18. 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.