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Molecular formula

C21H20O4S

9 compounds have this formula on CompoundList.

Molar mass
368.45g/mol
Monoisotopic mass
368.1082Da
Atoms
46
Elements
4
Rings plus double bonds
12

The formula C21H20O4S describes a molecule made of 21 carbon atoms, 20 hydrogen atoms, 4 oxygen atoms and 1 sulfur 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 × 2168.46%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 205.47%
    1.008 × 20 = 20.160 g/mol
  • O Oxygen × 417.37%
    15.999 × 4 = 63.996 g/mol
  • S Sulfur × 18.70%
    32.06 × 1 = 32.060 g/mol
Look up another formula

Compounds with the formula C21H20O4S

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

Showing 1 to 9 of 9 compounds

2-Phenyl-ethanesulfonic acid 4-benzyloxy-phenyl ester chemical structure, C21H20O4S, CAS 102834-56-0
2-Phenyl-ethanesulfonic acid 4-benzyloxy-phenyl ester
CAS 102834-56-0C21H20O4S
4-(Benzyloxy)phenyl 4-ethylbenzenesulfonate chemical structure, C21H20O4S, CAS 324776-34-3
4-(Benzyloxy)phenyl 4-ethylbenzenesulfonate
CAS 324776-34-3C21H20O4S
(Z)-2-((3-Methylthiophen-2-yl)methylene)-3-oxo-2,3-dihydrobenzofuran-6-yl cyclohexanecarboxylate chemical structure, C21H20O4S, CAS 622791-88-2
(Z)-2-((3-Methylthiophen-2-yl)methylene)-3-oxo-2,3-dihydrobenzofuran-6-yl cyclohexanecarboxylate
CAS 622791-88-2C21H20O4S
4-(Benzyloxy)phenyl 3,4-dimethylbenzenesulfonate chemical structure, C21H20O4S, CAS 392235-99-3
4-(Benzyloxy)phenyl 3,4-dimethylbenzenesulfonate
CAS 392235-99-3C21H20O4S
2,4-Bis(Benzyloxy)-1-methanesulfonylbenzene chemical structure, C21H20O4S, CAS 1820603-90-4
2,4-Bis(Benzyloxy)-1-methanesulfonylbenzene
CAS 1820603-90-4C21H20O4S
2-Ethyl-3-(4-methoxyphenyl)-4-thioxo-4H-chromen-7-yl propanoate chemical structure, C21H20O4S, CAS 16851-10-8
2-Ethyl-3-(4-methoxyphenyl)-4-thioxo-4H-chromen-7-yl propanoate
CAS 16851-10-8C21H20O4S
2-Methylsulfonyl-1,4-bis(phenylmethoxy)benzene chemical structure, C21H20O4S, CAS 187460-22-6
2-Methylsulfonyl-1,4-bis(phenylmethoxy)benzene
CAS 187460-22-6C21H20O4S
3-(3,4,5-Trimethoxyphenylsulfinyl)biphenyl chemical structure, C21H20O4S, CAS 1311195-73-9
3-(3,4,5-Trimethoxyphenylsulfinyl)biphenyl
CAS 1311195-73-9C21H20O4S
3,3-Bis(phenoxymethyl)-3,4-dihydro-2H-thieno[3,4-b][1,4]dioxepine chemical structure, C21H20O4S, CAS 918419-58-6
3,3-Bis(phenoxymethyl)-3,4-dihydro-2H-thieno[3,4-b][1,4]dioxepine
CAS 918419-58-6C21H20O4S

Frequently asked questions

What is the molar mass of C21H20O4S?

The molar mass of C21H20O4S is 368.45 g/mol, calculated from standard atomic weights for 21 carbon atoms, 20 hydrogen atoms, 4 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 368.1082 Da.

How many compounds have the formula C21H20O4S?

CompoundList lists 9 compounds with the molecular formula C21H20O4S, including 2-Phenyl-ethanesulfonic acid 4-benzyloxy-phenyl ester, 4-(Benzyloxy)phenyl 4-ethylbenzenesulfonate, (Z)-2-((3-Methylthiophen-2-yl)methylene)-3-oxo-2,3-dihydrobenzofuran-6-yl cyclohexanecarboxylate. 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 C21H20O4S?

C21H20O4S 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.