Molecular formula

C₁₈H₂₀O₃S

30 compounds have this formula on CompoundList.

Molar mass: 316.41g/mol
Monoisotopic mass: 316.1133Da
Atoms: 42
Elements: 4
Rings plus double bonds: 9

The formula C18H20O3S describes a molecule made of 18 carbon atoms, 20 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 × 1868.33%
12.011 × 18 = 216.198 g/mol
H Hydrogen × 206.37%
1.008 × 20 = 20.160 g/mol
O Oxygen × 315.17%
15.999 × 3 = 47.997 g/mol
S Sulfur × 110.13%
32.06 × 1 = 32.060 g/mol

Look up another formula

Compounds with the formula C18H20O3S

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

Showing 1 to 30 of 30 compounds

1,2,3,4-Tetrahydro-1-naphthalenylmethyl 4-methylbenzenesulfonate

CAS 19063-23-1C₁₈H₂₀O₃S

1-Propanone, 1-(3,4-dimethoxyphenyl)-2-[(4-methylphenyl)thio]-

CAS 169210-71-3C₁₈H₂₀O₃S

3-((2-Hydroxyethyl)thio)-3-(4-methoxyphenyl)-1-phenylpropan-1-one

CAS 302935-52-0C₁₈H₂₀O₃S

1-(3,4-Dimethoxyphenyl)-3-[(4-methylphenyl)sulfanyl]-1-propanone

CAS 883793-89-3C₁₈H₂₀O₃S

2-(4-n-Butylbenzoyl)-5-(1,3-dioxolan-2-yl)thiophene

CAS 898778-52-4C₁₈H₂₀O₃S

2-(4-T-Butylbenzoyl)-5-(1,3-dioxolan-2-yl)thiophene

CAS 898778-43-3C₁₈H₂₀O₃S

Rac-(1r,2s)-2-phenylcyclopentyl 4-methylbenzene-1-sulfonate

CAS 2371-92-8C₁₈H₂₀O₃S

2-[2-(2-Prop-1-en-2-ylphenyl)sulfonylphenyl]propan-2-ol

CAS 62750-60-1C₁₈H₂₀O₃S

3-Methylthio4-n-propoxy-5-benzyloxybenzaldehyde

CAS 133239-56-2C₁₈H₂₀O₃S

4-(3-Benzylsulfanylpropoxy)-3-methoxybenzaldehyde

CAS 1445708-59-7C₁₈H₂₀O₃S

4-Penten-1-ol, 5-phenyl-, 1-(4-methylbenzenesulfonate), (4E)-

CAS 13159-18-7C₁₈H₂₀O₃S

3-tert-Butyl-2-hydroxy-6-methyl-5-(phenylthio)benzoic acid

CAS 59266-67-0C₁₈H₂₀O₃S

2-Phenylcyclopentyl 4-methylbenzene-1-sulfonate

CAS 95529-91-2C₁₈H₂₀O₃S

S-(4-Methoxyphenyl) 4-butoxybenzene-1-carbothioate

CAS 62525-74-0C₁₈H₂₀O₃S

(E)-5-Phenylpent-4-enyl 4-methylbenzenesulfonate

C₁₈H₂₀O₃S

Methyl [1-(4'-methyl[1,1'-biphenyl]-4-yl)ethanesulfinyl]acetate

CAS 60993-27-3C₁₈H₂₀O₃S

Cyclopropanecarboxylic acid, 3-[(dihydro*

CAS 125603-72-7C₁₈H₂₀O₃S

2-(Benzenesulfinyl)-2-[(4-methoxyphenyl)methyl]-3,3-dimethyloxirane

CAS 106262-63-9C₁₈H₂₀O₃S

(4-Methoxyphenyl)methyl 2-(phenylsulfanyl)butanoate

CAS 923571-39-5C₁₈H₂₀O₃S

4-(Methylsulfanyl)phenyl 4-butoxybenzoate

CAS 89407-49-8C₁₈H₂₀O₃S

4-(4-Methylbenzene-1-sulfonyl)-5-phenylpentan-2-one

CAS 61476-97-9C₁₈H₂₀O₃S

(2S,3S)-2-(4-Methylbenzene-1-sulfonyl)-3-(2,4,6-trimethylphenyl)oxirane

CAS 88017-67-8C₁₈H₂₀O₃S

(6-Methyl-2,3-dihydro-1H-inden-4-yl)methyl 4-methylbenzene-1-sulfonate

CAS 2757917-24-9C₁₈H₂₀O₃S

3-Benzylcyclobutyl 4-methylbenzene-1-sulfonate

CAS 2757955-17-0C₁₈H₂₀O₃S

Frequently asked questions

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What is the molar mass of C18H20O3S?

The molar mass of C18H20O3S is 316.41 g/mol, calculated from standard atomic weights for 18 carbon atoms, 20 hydrogen atoms, 3 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 316.1133 Da.

How many compounds have the formula C18H20O3S?

CompoundList lists 30 compounds with the molecular formula C18H20O3S, including 1,2,3,4-Tetrahydro-1-naphthalenylmethyl 4-methylbenzenesulfonate, 1-Propanone, 1-(3,4-dimethoxyphenyl)-2-[(4-methylphenyl)thio]-, 3-((2-Hydroxyethyl)thio)-3-(4-methoxyphenyl)-1-phenylpropan-1-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 C18H20O3S?

C18H20O3S has a degree of unsaturation of 9. 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.