Molecular formula

C₂₀H₁₈O₃S

20 compounds have this formula on CompoundList.

Molar mass: 338.42g/mol
Monoisotopic mass: 338.0977Da
Atoms: 42
Elements: 4
Rings plus double bonds: 12

The formula C20H18O3S describes a molecule made of 20 carbon atoms, 18 hydrogen atoms, 3 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 × 2070.98%
12.011 × 20 = 240.220 g/mol
H Hydrogen × 185.36%
1.008 × 18 = 18.144 g/mol
O Oxygen × 314.18%
15.999 × 3 = 47.997 g/mol
S Sulfur × 19.47%
32.06 × 1 = 32.060 g/mol

Look up another formula

Compounds with the formula C20H18O3S

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

Showing 1 to 20 of 20 compounds

3-((4-Methylphenyl)sulfonyl)-1-(2-naphthyl)-1-propanone

CAS 75910-27-9C₂₀H₁₈O₃S

(2Z,4Z)-2,4-Bis[(4-methoxyphenyl)methylidene]thiolan-3-one

CAS 1630942-09-4C₂₀H₁₈O₃S

Benzhydryl 4-methylbenzenesulfonate

CAS 5435-24-5C₂₀H₁₈O₃S

4-Hydroxy-3-(3-oxo-1-phenylpentyl)-2H-thiochromen-2-one

CAS 65591-76-6C₂₀H₁₈O₃S

1,1-Diphenyl-2-(phenylsulfonyl)-1-ethanol

CAS 59826-93-6C₂₀H₁₈O₃S

1-[3-(Benzyloxy)phenyl]-4-methanesulfonylbenzene

CAS 1345472-18-5C₂₀H₁₈O₃S

3,4'-Dimethyl[1,1'-biphenyl]-4-yl benzenesulfonate

CAS 301657-70-5C₂₀H₁₈O₃S

4-[2-(4,4-Dimethyl-2,3-dihydrothiochromen-6-yl)ethynyl]-2-hydroxybenzoic acid

CAS 2131803-75-1C₂₀H₁₈O₃S

Ethyl 4-oxo-4-(5-phenylbenzo[b]thiophen-3-yl)butanoate

CAS 1310427-90-7C₂₀H₁₈O₃S

2-[4-(1-Methylethyl)phenyl]-6-phenyl-4H-thiopyran-4-one 1,1-dioxide

CAS 174493-23-3C₂₀H₁₈O₃S

9H-Thioxanthene-2-carboxylic acid, 9-oxo-, cyclohexyl ester

CAS 917762-61-9C₂₀H₁₈O₃S

Phenol, 4-methyl-2-[phenyl(phenylsulfonyl)methyl]-

CAS 61563-88-0C₂₀H₁₈O₃S

1-Methyl-4-[4-(4-methylbenzene-1-sulfonyl)phenoxy]benzene

CAS 64325-27-5C₂₀H₁₈O₃S

2-[(E)-4-Phenoxybut-2-enyl]sulfonylnaphthalene

CAS 61541-87-5C₂₀H₁₈O₃S

4-Methoxy-6-methyl-5-[phenyl(phenylsulfanyl)methyl]-2H-pyran-2-one

CAS 109746-00-1C₂₀H₁₈O₃S

2-[(Benzyloxy)methyl]-5-methyl-3-(phenylsulfanyl)-4H-pyran-4-one

CAS 108343-40-4C₂₀H₁₈O₃S

Acetic acid--(1R,2R)-2-(phenylsulfanyl)-1,2-dihydroacenaphthylen-1-ol (1/1)

CAS 64545-60-4C₂₀H₁₈O₃S

4-Benzylphenyl 4-methylbenzene-1-sulfonate

CAS 1160484-32-1C₂₀H₁₈O₃S

4'-Methyl-[1,1'-biphenyl]-4-yl 4-methylbenzene-1-sulfonate

CAS 1519010-76-4C₂₀H₁₈O₃S

2-Benzylphenyl 4-methylbenzene-1-sulfonate

CAS 2757927-20-9C₂₀H₁₈O₃S

Frequently asked questions

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What is the molar mass of C20H18O3S?

The molar mass of C20H18O3S is 338.42 g/mol, calculated from standard atomic weights for 20 carbon atoms, 18 hydrogen atoms, 3 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 338.0977 Da.

How many compounds have the formula C20H18O3S?

CompoundList lists 20 compounds with the molecular formula C20H18O3S, including 3-((4-Methylphenyl)sulfonyl)-1-(2-naphthyl)-1-propanone, (2Z,4Z)-2,4-Bis[(4-methoxyphenyl)methylidene]thiolan-3-one, Benzhydryl 4-methylbenzenesulfonate. 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 C20H18O3S?

C20H18O3S 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.