Molecular formula

C₁₈H₁₈O₄S

21 compounds have this formula on CompoundList.

Molar mass: 330.40g/mol
Monoisotopic mass: 330.0926Da
Atoms: 41
Elements: 4
Rings plus double bonds: 10

The formula C18H18O4S describes a molecule made of 18 carbon atoms, 18 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 × 1865.44%
12.011 × 18 = 216.198 g/mol
H Hydrogen × 185.49%
1.008 × 18 = 18.144 g/mol
O Oxygen × 419.37%
15.999 × 4 = 63.996 g/mol
S Sulfur × 19.70%
32.06 × 1 = 32.060 g/mol

Look up another formula

Compounds with the formula C18H18O4S

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

Showing 1 to 21 of 21 compounds

2,2'-Diallyl-4,4'-sulfonyldiphenol

CAS 41481-66-7C₁₈H₁₈O₄S

Bis(4-allyloxyphenyl)sulfone

CAS 41481-63-4C₁₈H₁₈O₄S

BI-L 357

CAS 149539-02-6C₁₈H₁₈O₄S

2-[[4-[4-(Oxiran-2-ylmethoxy)phenyl]sulfanylphenoxy]methyl]oxirane

CAS 16558-06-8C₁₈H₁₈O₄S

3,4-Dihydro-6-methoxy-2-[4-(methylsulfonyl)phenyl]-1(2H)-naphthalenone

CAS 648906-33-6C₁₈H₁₈O₄S

3,3'-Sulfonylbis(1-phenylpropan-1-one)

CAS 63261-17-6C₁₈H₁₈O₄S

1-[2,6-Dimethyl-4-[2-(2-thienyl)ethenyl]phenyl] butanedioate

CAS 125722-33-0C₁₈H₁₈O₄S

3-Ethoxy-2-(4-methylbenzene-1-sulfonyl)-1-phenylprop-2-en-1-one

CAS 64326-20-1C₁₈H₁₈O₄S

Dibenzyl 2,2'-sulfanediyldiacetate

CAS 7497-95-2C₁₈H₁₈O₄S

1,4-Benzenedicarboxylic acid, 2-[[4-(1,1-dimethylethyl)phenyl]thio]-

CAS 51762-80-2C₁₈H₁₈O₄S

2-[[2,3-Dihydro-7-[[(4-hydroxyphenyl)methyl]thio]-1H-inden-4-yl]oxy]acetic acid

CAS 613240-61-2C₁₈H₁₈O₄S

2-Propen-1-one, 1-(2-hydroxy-4,6-dimethoxyphenyl)-3-(4-(methylthio)phenyl)-

CAS 76554-27-3C₁₈H₁₈O₄S

1-(4-Methoxyphenyl)-2-[2-(4-methoxyphenyl)-2-oxo-ethylsulfanyl]ethanone

CAS 20177-84-8C₁₈H₁₈O₄S

Diethyl 2,2'-sulfanediyldibenzoate

CAS 62220-51-3C₁₈H₁₈O₄S

Methyl 2-(benzenesulfonyl)-5-phenylpent-4-enoate

CAS 87802-82-2C₁₈H₁₈O₄S

4,4'-Sulfonylbis[2-(prop-1-en-1-yl)phenol]

CAS 854055-60-0C₁₈H₁₈O₄S

1-(Benzenesulfonyl)-3-(2-hydroxyethyl)-3,4-dihydronaphthalen-2(1H)-one

CAS 88116-17-0C₁₈H₁₈O₄S

4-Oxo-2-[(2-oxocyclohexyl)methyl]-4H-1-benzothiopyran-3-yl acetate

CAS 88470-11-5C₁₈H₁₈O₄S

Ethyl 2-(benzenesulfonyl)-3-(4-methylphenyl)prop-2-enoate

CAS 113696-95-0C₁₈H₁₈O₄S

1,5-Diphenyl-6,7-dioxa-3lambda~6~-thiabicyclo[3.2.2]nonane-3,3-dione

CAS 174969-02-9C₁₈H₁₈O₄S

4-Methylbenzene-1-sulfonic acid--1-(phenylethynyl)cyclopropan-1-ol (1/1)

CAS 57951-60-7C₁₈H₁₈O₄S

Frequently asked questions

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What is the molar mass of C18H18O4S?

The molar mass of C18H18O4S is 330.40 g/mol, calculated from standard atomic weights for 18 carbon atoms, 18 hydrogen atoms, 4 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 330.0926 Da.

How many compounds have the formula C18H18O4S?

CompoundList lists 21 compounds with the molecular formula C18H18O4S, including 2,2'-Diallyl-4,4'-sulfonyldiphenol, Bis(4-allyloxyphenyl)sulfone, BI-L 357. 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 C18H18O4S?

C18H18O4S has a degree of unsaturation of 10. 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.