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Molecular formula

C20H17FO4

11 compounds have this formula on CompoundList.

Molar mass
340.35g/mol
Monoisotopic mass
340.1111Da
Atoms
42
Elements
4
Rings plus double bonds
12

The formula C20H17FO4 describes a molecule made of 20 carbon atoms, 17 hydrogen atoms, 1 fluorine atom and 4 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 × 2070.58%
    12.011 × 20 = 240.220 g/mol
  • H Hydrogen × 175.03%
    1.008 × 17 = 17.136 g/mol
  • F Fluorine × 15.58%
    18.998 × 1 = 18.998 g/mol
  • O Oxygen × 418.80%
    15.999 × 4 = 63.996 g/mol
Look up another formula

Compounds with the formula C20H17FO4

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

Showing 1 to 11 of 11 compounds

7-[2-(4-Fluorophenyl)-2-oxoethoxy]-4-propylchromen-2-one chemical structure, C20H17FO4, CAS 307546-73-2
7-[2-(4-Fluorophenyl)-2-oxoethoxy]-4-propylchromen-2-one
CAS 307546-73-2C20H17FO4
4-Ethyl-5-[2-(4-fluorophenyl)-2-oxoethoxy]-7-methyl-2H-chromen-2-one chemical structure, C20H17FO4, CAS 307546-53-8
4-Ethyl-5-[2-(4-fluorophenyl)-2-oxoethoxy]-7-methyl-2H-chromen-2-one
CAS 307546-53-8C20H17FO4
3-Ethyl-7-[2-(4-fluorophenyl)-2-oxoethoxy]-4-methyl-2H-chromen-2-one chemical structure, C20H17FO4, CAS 670243-78-4
3-Ethyl-7-[2-(4-fluorophenyl)-2-oxoethoxy]-4-methyl-2H-chromen-2-one
CAS 670243-78-4C20H17FO4
4-Ethyl-7-[2-(4-fluorophenyl)-2-oxoethoxy]-8-methyl-2H-chromen-2-one chemical structure, C20H17FO4, CAS 374707-59-2
4-Ethyl-7-[2-(4-fluorophenyl)-2-oxoethoxy]-8-methyl-2H-chromen-2-one
CAS 374707-59-2C20H17FO4
(2Z)-2-(3-Fluorobenzylidene)-3-oxo-2,3-dihydro-1-benzofuran-6-yl 2,2-dimethylpropanoate chemical structure, C20H17FO4, CAS 622360-09-2
(2Z)-2-(3-Fluorobenzylidene)-3-oxo-2,3-dihydro-1-benzofuran-6-yl 2,2-dimethylpropanoate
CAS 622360-09-2C20H17FO4
7-[2-(4-Fluorophenyl)-2-oxoethoxy]-3,4,8-trimethyl-2H-chromen-2-one chemical structure, C20H17FO4, CAS 314742-10-4
7-[2-(4-Fluorophenyl)-2-oxoethoxy]-3,4,8-trimethyl-2H-chromen-2-one
CAS 314742-10-4C20H17FO4
(2Z)-2-(4-Fluorobenzylidene)-3-oxo-2,3-dihydro-1-benzofuran-6-yl 2,2-dimethylpropanoate chemical structure, C20H17FO4, CAS 622823-83-0
(2Z)-2-(4-Fluorobenzylidene)-3-oxo-2,3-dihydro-1-benzofuran-6-yl 2,2-dimethylpropanoate
CAS 622823-83-0C20H17FO4
(2Z)-2-(2-Fluorobenzylidene)-3-oxo-2,3-dihydro-1-benzofuran-6-yl 2,2-dimethylpropanoate chemical structure, C20H17FO4, CAS 622823-99-8
(2Z)-2-(2-Fluorobenzylidene)-3-oxo-2,3-dihydro-1-benzofuran-6-yl 2,2-dimethylpropanoate
CAS 622823-99-8C20H17FO4
5-[2-(4-Fluorophenyl)-2-oxoethoxy]-3,4,7-trimethyl-2H-chromen-2-one chemical structure, C20H17FO4, CAS 690682-80-5
5-[2-(4-Fluorophenyl)-2-oxoethoxy]-3,4,7-trimethyl-2H-chromen-2-one
CAS 690682-80-5C20H17FO4
2-Methyl-2-propenoic acid 3-fluoro[1,1'-biphenyl]-4,4'-diyl ester chemical structure, C20H17FO4, CAS 165255-16-3
2-Methyl-2-propenoic acid 3-fluoro[1,1'-biphenyl]-4,4'-diyl ester
CAS 165255-16-3C20H17FO4
6-Ethyl-7-[2-(4-fluorophenyl)-2-oxoethoxy]-4-methyl-2H-chromen-2-one chemical structure, C20H17FO4, CAS 670242-15-6
6-Ethyl-7-[2-(4-fluorophenyl)-2-oxoethoxy]-4-methyl-2H-chromen-2-one
CAS 670242-15-6C20H17FO4

Frequently asked questions

What is the molar mass of C20H17FO4?

The molar mass of C20H17FO4 is 340.35 g/mol, calculated from standard atomic weights for 20 carbon atoms, 17 hydrogen atoms, 1 fluorine atom and 4 oxygen atoms. The monoisotopic mass is 340.1111 Da.

How many compounds have the formula C20H17FO4?

CompoundList lists 11 compounds with the molecular formula C20H17FO4, including 7-[2-(4-Fluorophenyl)-2-oxoethoxy]-4-propylchromen-2-one, 4-Ethyl-5-[2-(4-fluorophenyl)-2-oxoethoxy]-7-methyl-2H-chromen-2-one, 3-Ethyl-7-[2-(4-fluorophenyl)-2-oxoethoxy]-4-methyl-2H-chromen-2-one. 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 C20H17FO4?

C20H17FO4 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.