C21H13ClO
5 compounds have this formula on CompoundList.
- Molar mass
- 316.78g/mol
- Monoisotopic mass
- 316.0655Da
- Atoms
- 36
- Elements
- 4
- Rings plus double bonds
- 15
The formula C21H13ClO describes a molecule made of 21 carbon atoms, 13 hydrogen atoms, 1 chlorine atom 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 × 2179.62%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 134.14%1.008 × 13 = 13.104 g/mol
- Cl Chlorine × 111.19%35.45 × 1 = 35.450 g/mol
- O Oxygen × 15.05%15.999 × 1 = 15.999 g/mol
Compounds with the formula C21H13ClO
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 5 of 5 compounds
![9(10H)-Anthracenone, 10-[(4-chlorophenyl)methylene]- chemical structure, C21H13ClO, CAS 14343-93-2](/s/HZSARCSLDWWCIL-UHFFFAOYSA-N.svg)
![Dibenzo[a,j]xanthylium, chloride chemical structure, C21H13ClO, CAS 34968-38-2](/s/LZMNPPWFBNAABN-UHFFFAOYSA-M.svg)
![[1,1'-Binaphthalene]-2-carbonyl chloride chemical structure, C21H13ClO, CAS 93531-03-4](/s/CLKKSVDBJVYSQY-UHFFFAOYSA-N.svg)
Frequently asked questions
What is the molar mass of C21H13ClO?
The molar mass of C21H13ClO is 316.78 g/mol, calculated from standard atomic weights for 21 carbon atoms, 13 hydrogen atoms, 1 chlorine atom and 1 oxygen atom. The monoisotopic mass is 316.0655 Da.
How many compounds have the formula C21H13ClO?
CompoundList lists 5 compounds with the molecular formula C21H13ClO, including 10-(2-Chlorobenzylidene)-9-anthrone, 9(10H)-Anthracenone, 10-[(4-chlorophenyl)methylene]-, Dibenzo[a,j]xanthylium, chloride. 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 C21H13ClO?
C21H13ClO 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.