CompoundList
Sign in
Molecular formula

C21H22O2

33 compounds have this formula on CompoundList.

Molar mass
306.40g/mol
Monoisotopic mass
306.1620Da
Atoms
45
Elements
3
Rings plus double bonds
11

The formula C21H22O2 describes a molecule made of 21 carbon atoms, 22 hydrogen atoms and 2 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 × 2182.32%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 227.24%
    1.008 × 22 = 22.176 g/mol
  • O Oxygen × 210.44%
    15.999 × 2 = 31.998 g/mol
Look up another formula

Compounds with the formula C21H22O2

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

Showing 1 to 33 of 33 compounds

2-(3-Oxo-1,3-diphenylpropyl)cyclohexan-1-one chemical structure, C21H22O2, CAS 2682-98-6
2-(3-Oxo-1,3-diphenylpropyl)cyclohexan-1-one
CAS 2682-98-6C21H22O2
Benz(3,4)-6-oxaestra-1,3,5(10),8-tetraen-17-ol chemical structure, C21H22O2, CAS 131077-42-4
Benz(3,4)-6-oxaestra-1,3,5(10),8-tetraen-17-ol
CAS 131077-42-4C21H22O2
Endiandric acid A chemical structure, C21H22O2, CAS 74591-03-0
Endiandric acid A
CAS 74591-03-0C21H22O2
2,5-Diethyl-3,4-diphenyl-4-hydroxy-2-cyclopenten-1-one chemical structure, C21H22O2, CAS 5323-83-1
2,5-Diethyl-3,4-diphenyl-4-hydroxy-2-cyclopenten-1-one
CAS 5323-83-1C21H22O2
9-(4-Methyl-pentyl)-phenanthrene-3-carboxylic acid chemical structure, C21H22O2, CAS 1333213-35-6
9-(4-Methyl-pentyl)-phenanthrene-3-carboxylic acid
CAS 1333213-35-6C21H22O2
Benzofuro[4,3,2-def][1]benzoxepin, 9,10-dihydro-3-methyl-10-methylene-6-pentyl- chemical structure, C21H22O2, CAS 1309591-67-0
Benzofuro[4,3,2-def][1]benzoxepin, 9,10-dihydro-3-methyl-10-methylene-6-pentyl-
CAS 1309591-67-0C21H22O2
Ctk0A7354 chemical structure, C21H22O2, CAS 175441-79-9
Ctk0A7354
CAS 175441-79-9C21H22O2
9H-Fluorene-2,7-dicarboxaldehyde, 9,9-dipropyl- chemical structure, C21H22O2, CAS 157771-55-6
9H-Fluorene-2,7-dicarboxaldehyde, 9,9-dipropyl-
CAS 157771-55-6C21H22O2
7-(Anthracen-2-yl)heptanoic acid chemical structure, C21H22O2, CAS 73693-26-2
7-(Anthracen-2-yl)heptanoic acid
CAS 73693-26-2C21H22O2
4-Hydroxy-5,5-dimethyl-3,4-bis(4-methylphenyl)-2-cyclopenten-1-one chemical structure, C21H22O2, CAS 1211543-40-6
4-Hydroxy-5,5-dimethyl-3,4-bis(4-methylphenyl)-2-cyclopenten-1-one
CAS 1211543-40-6C21H22O2
2,3-Dimethoxy-1,7-dimethyl-6-(phenylmethyl)naphthalene chemical structure, C21H22O2, CAS 213971-40-5
2,3-Dimethoxy-1,7-dimethyl-6-(phenylmethyl)naphthalene
CAS 213971-40-5C21H22O2
2,3-Bis(2,4,6-trimethylphenyl)prop-1-ene-1,3-dione chemical structure, C21H22O2, CAS 95694-43-2
2,3-Bis(2,4,6-trimethylphenyl)prop-1-ene-1,3-dione
CAS 95694-43-2C21H22O2
Naphthalene, 1-butoxy-4-(phenylmethoxy)- chemical structure, C21H22O2, CAS 106687-02-9
Naphthalene, 1-butoxy-4-(phenylmethoxy)-
CAS 106687-02-9C21H22O2
1-(2-Methoxyphenyl)-2-(4-methylnaphthalen-1-yl)propan-2-ol chemical structure, C21H22O2, CAS 84249-65-0
1-(2-Methoxyphenyl)-2-(4-methylnaphthalen-1-yl)propan-2-ol
CAS 84249-65-0C21H22O2
Hydrocinnamic acid, o-[(3,4-dihydro-2-naphthyl)methyl]-, methyl ester chemical structure, C21H22O2, CAS 23796-81-8
Hydrocinnamic acid, o-[(3,4-dihydro-2-naphthyl)methyl]-, methyl ester
CAS 23796-81-8C21H22O2
1H-Indene-1,3(2H)-dione, 2-[3,5-bis(1-methylethy chemical structure, C21H22O2, CAS 55994-24-6
1H-Indene-1,3(2H)-dione, 2-[3,5-bis(1-methylethy
CAS 55994-24-6C21H22O2
Ethyl 3,4-diphenylcyclohex-3-ene-1-carboxylate chemical structure, C21H22O2, CAS 62544-21-2
Ethyl 3,4-diphenylcyclohex-3-ene-1-carboxylate
CAS 62544-21-2C21H22O2
2-({4-[(4-Methylphenyl)methoxy]phenyl}methylidene)cyclohexan-1-one chemical structure, C21H22O2, CAS 87908-68-7
2-({4-[(4-Methylphenyl)methoxy]phenyl}methylidene)cyclohexan-1-one
CAS 87908-68-7C21H22O2
2-{2-[2-(Propan-2-yl)phenoxy]ethoxy}naphthalene chemical structure, C21H22O2, CAS 97762-37-3
2-{2-[2-(Propan-2-yl)phenoxy]ethoxy}naphthalene
CAS 97762-37-3C21H22O2
(2R,3R)-7-Methyl-2,3-diphenyl-1,4-dioxaspiro[4.5]dec-6-ene chemical structure, C21H22O2, CAS 1416324-25-8
(2R,3R)-7-Methyl-2,3-diphenyl-1,4-dioxaspiro[4.5]dec-6-ene
CAS 1416324-25-8C21H22O2
Henicosa-6,9,12,15,18-pentaynoic acid chemical structure, C21H22O2, CAS 1797024-23-7
Henicosa-6,9,12,15,18-pentaynoic acid
CAS 1797024-23-7C21H22O2
(E)-Phenyl(2-phenylcyclohexylidene)methyl acetate chemical structure, C21H22O2, CAS 32587-68-1
(E)-Phenyl(2-phenylcyclohexylidene)methyl acetate
CAS 32587-68-1C21H22O2
2-(4-Ethenylphenyl)-5-[(4-ethenylphenyl)methyl]-1,3-dioxane chemical structure, C21H22O2, CAS 88672-71-3
2-(4-Ethenylphenyl)-5-[(4-ethenylphenyl)methyl]-1,3-dioxane
CAS 88672-71-3C21H22O2
Methyl 4-((4-pentylphenyl)ethynyl)benzoate chemical structure, C21H22O2, CAS 109083-04-7
Methyl 4-((4-pentylphenyl)ethynyl)benzoate
CAS 109083-04-7C21H22O2

Frequently asked questions

What is the molar mass of C21H22O2?

The molar mass of C21H22O2 is 306.40 g/mol, calculated from standard atomic weights for 21 carbon atoms, 22 hydrogen atoms and 2 oxygen atoms. The monoisotopic mass is 306.1620 Da.

How many compounds have the formula C21H22O2?

CompoundList lists 33 compounds with the molecular formula C21H22O2, including 2-(3-Oxo-1,3-diphenylpropyl)cyclohexan-1-one, Benz(3,4)-6-oxaestra-1,3,5(10),8-tetraen-17-ol, Endiandric acid A. 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 C21H22O2?

C21H22O2 has a degree of unsaturation of 11. 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.