C21H20O2
63 compounds have this formula on CompoundList.
- Molar mass
- 304.39g/mol
- Monoisotopic mass
- 304.1463Da
- Atoms
- 43
- Elements
- 3
- Rings plus double bonds
- 12
The formula C21H20O2 describes a molecule made of 21 carbon atoms, 20 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 × 2182.86%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 206.62%1.008 × 20 = 20.160 g/mol
- O Oxygen × 210.51%15.999 × 2 = 31.998 g/mol
Compounds with the formula C21H20O2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 63 of 63 compounds
![Benzene, 1,1'-[(phenylmethylene)bis(oxymethylene)]bis- chemical structure, C21H20O2, CAS 5784-65-6](/s/WMWUFFDJWAAUQH-UHFFFAOYSA-N.svg)
![1-Ethyl-4-[(4-phenoxyphenoxy)methyl]benzene chemical structure, C21H20O2, CAS 54758-56-4](/s/GZGYQWNCOCGPEB-UHFFFAOYSA-N.svg)
![2-[2-(Hydroxymethyl)phenyl]-1,1-diphenylethan-1-ol chemical structure, C21H20O2, CAS 172225-49-9](/s/XFHDGYJDVRDMQS-UHFFFAOYSA-N.svg)
![2-[(2-Hydroxy-4-methylphenyl)-phenylmethyl]-5-methylphenol chemical structure, C21H20O2, CAS 32094-28-3](/s/QBOSHHQTVWAMOU-UHFFFAOYSA-N.svg)
![[1,1':4',1''-Terphenyl]-4,4''-diol, 3-(1-methylethyl)- chemical structure, C21H20O2, CAS 711010-04-7](/s/UOLABWPPWJVRDF-UHFFFAOYSA-N.svg)
![2-(4-Hydroxyphenyl)-4-phenylbicyclo[3.3.1]non-2-en-9-one chemical structure, C21H20O2, CAS 61078-52-2](/s/RFHSIGLLDKEIDE-UHFFFAOYSA-N.svg)
- (((5-Methyl-1,3-phenylene)bis(oxy))bis(methylene))dibenzene36776-43-9C21H20O2
- 1-(2-Methylphenoxy)-4-[(4-methylphenyl)methoxy]benzene54758-77-9C21H20O2
- 6,8-Diphenyl-7-oxaspiro(4.5)dec-8-en-10-one1048640-54-5C21H20O2
- 2-(3'-(Benzyloxy)-[1,1'-biphenyl]-2-yl)ethanol2804046-80-6C21H20O2
- 4-Methoxy-3-methyl-alpha,alpha-diphenylbenzenemethanol861096-18-6C21H20O2
- 5-Methoxy-7,12-dimethyl-5,6-dihydrotetraphen-6-ol73533-07-0C21H20O2
- Phenol, 2-[(4-hydroxy-3-methylphenyl)phenylmethyl]-4-methyl-193478-36-3C21H20O2
- 2,6-Diphenethyl-4H-pyran-4-one56150-35-7C21H20O2
- 2-([1~1~,2~1~:2~2~,3~1~-Terphenyl]-2~4~-yl)propane-2-peroxol77218-85-0C21H20O2
- 5-[2-(4-Hydroxyphenyl)propan-2-yl][1,1'-biphenyl]-2-ol23950-75-6C21H20O2
- 2,2-Dimethyl-4-(naphthalen-2-yl)-3,4-dihydro-2H-1-benzopyran-7-ol62071-75-4C21H20O2
- 4-[Ethoxy(diphenyl)methyl]phenol62345-21-5C21H20O2
- 3,3-Dimethyl-4-phenyl-6-(2-phenylethenyl)-3,4-dihydro-2H-pyran-2-one820209-17-4C21H20O2
- 2-Benzylidene-6-[(4-methoxyphenyl)methylidene]cyclohexan-1-one57083-26-8C21H20O2
- 2-Methyl-4-(2-methylphenoxy)-1-(3-methylphenoxy)benzene1443037-64-6C21H20O2
- 1-Ethyl-2,3-dihydro-3-phenyl-1H-naphtho[2,1-b]pyran-1-ol2859-91-8C21H20O2
- (2-(BenZyloxy)-3-methylphenyl)(phenyl)methanol3002455-76-4C21H20O2
- 2,2'-Methylenedi(3,4-dihydronaphthalen-1(2H)-one)5118-57-0C21H20O2
- 7,11,12-Trimethyl-7,12-dihydrotetraphene-7,12-diol86785-15-1C21H20O2
- 5-tert-Butyl-3-(diphenylmethylidene)furan-2(3H)-one103619-93-8C21H20O2
- 4,4''-Dimethoxy-5'-methyl-1,1':3',1''-terphenyl117898-24-5C21H20O2
- 4,4'-(1-(p-Tolyl)ethane-1,1-diyl)diphenol109263-71-0C21H20O2
- 2-Methyl-3-(2-methyl-2-phenylpropyl)naphthalene-1,4-dione85304-84-3C21H20O2
- 2-(2-Methoxyphenyl)-1,1-diphenylethanol1251018-59-3C21H20O2
- 2-[3-(3,4-Dimethoxyphenyl)prop-1-en-1-yl]naphthalene113929-40-1C21H20O2
- 1,1'-[(2-Methyl-1,3-phenylene)bis(methyleneoxy)]dibenzene138329-34-7C21H20O2
- 2-(Naphthalen-1-yl)-2-phenyl-1,3-dioxepane143478-56-2C21H20O2
- (9H-Fluoren-9-yl)methyl 3-methylhexa-2,5-dienoate476452-70-7C21H20O2
- 1-(Anthracen-2-yl)propyl 2-methylprop-2-enoate63619-53-4C21H20O2
- 1,1'-[(2-Phenoxyethoxy)methylene]dibenzene64277-09-4C21H20O2
- 2-[3-(4-Propylphenyl)prop-1-en-1-yl]-1H-indene-1,3(2H)-dione61124-72-9C21H20O2
- 2-(4-Hydroxyphenyl)-3-phenylbicyclo[3.3.1]non-2-en-9-one61078-57-7C21H20O2
- 5-[(Benzyloxy)methyl]-7-phenylhept-4-en-6-ynal917774-19-7C21H20O2
- 1-(4-Methylphenyl)-3-(1-(4-methoxynaphthalenyl))-1-propanone1391054-19-5C21H20O2
- (3'-(Benzyloxy)-2-methyl-[1,1'-biphenyl]-3-yl)methanol3078573-14-2C21H20O2
- (4'-(Benzyloxy)-2-methyl-[1,1'-biphenyl]-3-yl)methanol3078558-22-9C21H20O2
- (4-(Benzyloxy)-2-methylphenyl)(phenyl)methanol2685763-21-5C21H20O2
- 2-(2-Methoxy-[1,1'-biphenyl]-3-yl)-1-phenylethanol1385020-84-7C21H20O2
- 2-Methoxy-4-methyl-alpha,alpha-diphenylbenZenemethanol1426256-67-8C21H20O2
Frequently asked questions
What is the molar mass of C21H20O2?
The molar mass of C21H20O2 is 304.39 g/mol, calculated from standard atomic weights for 21 carbon atoms, 20 hydrogen atoms and 2 oxygen atoms. The monoisotopic mass is 304.1463 Da.
How many compounds have the formula C21H20O2?
CompoundList lists 63 compounds with the molecular formula C21H20O2, including 1,1'-(Phenylmethylene)bis(4-methoxybenzene), 1-(4'-Carboxyethyl)-6-diphenyl-1,3,5-hexatriene, 2-Methyl-1,3-bis(phenylmethoxy)benzene. 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 C21H20O2?
C21H20O2 has a degree of unsaturation of 12. 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.