Molecular formula

C₁₈H₁₆O₅S

23 compounds have this formula on CompoundList.

Molar mass: 344.38g/mol
Monoisotopic mass: 344.0718Da
Atoms: 40
Elements: 4
Rings plus double bonds: 11

The formula C18H16O5S describes a molecule made of 18 carbon atoms, 16 hydrogen atoms, 5 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 × 1862.78%
12.011 × 18 = 216.198 g/mol
H Hydrogen × 164.68%
1.008 × 16 = 16.128 g/mol
O Oxygen × 523.23%
15.999 × 5 = 79.995 g/mol
S Sulfur × 19.31%
32.06 × 1 = 32.060 g/mol

Look up another formula

Compounds with the formula C18H16O5S

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

Showing 1 to 23 of 23 compounds

Propan-2-yl 2-methyl-5-(thiophene-2-carbonyloxy)-1-benzofuran-3-carboxylate

CAS 302952-36-9C₁₈H₁₆O₅S

(Z)-2-(4-Ethylbenzylidene)-3-oxo-2,3-dihydrobenzofuran-6-yl methanesulfonate

CAS 1164462-39-8C₁₈H₁₆O₅S

3-Benzyl-4-methyl-2-oxo-2H-chromen-7-yl methanesulfonate

CAS 284487-29-2C₁₈H₁₆O₅S

3-(3,5-Dimethylbenzenesulfonyl)-8-methoxy-2H-chromen-2-one

CAS 950259-00-4C₁₈H₁₆O₅S

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CAS 53342-18-0C₁₈H₁₆O₅S

3-(3,4-Dimethylphenyl)sulfonyl-6-methoxychromen-2-one

CAS 866013-18-5C₁₈H₁₆O₅S

(Z)-Ethyl 2-((2-((3-methylthiophen-2-yl)methylene)-3-oxo-2,3-dihydrobenzofuran-6-yl)oxy)acetate

CAS 620547-91-3C₁₈H₁₆O₅S

(Z)-Methyl 2-((2-((3-methylthiophen-2-yl)methylene)-3-oxo-2,3-dihydrobenzofuran-6-yl)oxy)propanoate

CAS 620546-50-1C₁₈H₁₆O₅S

(Z)-Ethyl 2-((3-oxo-2-(thiophen-2-ylmethylene)-2,3-dihydrobenzofuran-6-yl)oxy)propanoate

CAS 623122-95-2C₁₈H₁₆O₅S

8-Ethoxy-3-[(4-methylphenyl)sulfonyl]-2H-chromen-2-one

CAS 904449-49-6C₁₈H₁₆O₅S

3-(3,4-Dimethylphenyl)sulfonyl-8-methoxychromen-2-one

CAS 866013-13-0C₁₈H₁₆O₅S

(Z)-Isopropyl 2-((3-oxo-2-(thiophen-2-ylmethylene)-2,3-dihydrobenzofuran-6-yl)oxy)acetate

CAS 623121-60-8C₁₈H₁₆O₅S

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CAS 74733-78-1C₁₈H₁₆O₅S

4-Methoxyphenyl 6-methoxynaphthalene-2-sulfonate

CAS 428448-68-4C₁₈H₁₆O₅S

4-Ethyl-2-oxo-2H-chromen-7-yl 4-methylbenzene-1-sulfonate

CAS 433308-02-2C₁₈H₁₆O₅S

2-Methoxy-5-{[(2E)-1-oxo-1,2,3,4-tetrahydronaphthalen-2-ylidene]methyl}benzene-1-sulfonic acid

CAS 91788-14-6C₁₈H₁₆O₅S

2-Butanone, 4-(4-hydroxy-2,2-dioxido-1,2-benzoxathiin-3-yl)-4-phenyl-

CAS 81494-81-7C₁₈H₁₆O₅S

Naphthalen-1-yl 2,5-dimethoxybenzene-1-sulfonate

CAS 876916-71-1C₁₈H₁₆O₅S

4-(2H-1,3-Benzodioxol-5-yl)-3-(4-methylbenzene-1-sulfonyl)but-3-en-2-one

CAS 116471-43-3C₁₈H₁₆O₅S

6,7-Dimethyl-2-oxo-2H-1-benzopyran-4-yl 4-methylbenzene-1-sulfonate

CAS 879416-91-8C₁₈H₁₆O₅S

Phenprocoumon sulfate

CAS 131147-41-6C₁₈H₁₆O₅S

4,8-Dimethyl-2-oxo-2H-chromen-7-yl 4-methylbenzene-1-sulfonate

CAS 19046-43-6C₁₈H₁₆O₅S

4-[(4'-Methacryloyloxy)phenylazo]benzenesulfonicacid

CAS 1005792-99-3C₁₈H₁₆O₅S

Frequently asked questions

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What is the molar mass of C18H16O5S?

The molar mass of C18H16O5S is 344.38 g/mol, calculated from standard atomic weights for 18 carbon atoms, 16 hydrogen atoms, 5 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 344.0718 Da.

How many compounds have the formula C18H16O5S?

CompoundList lists 23 compounds with the molecular formula C18H16O5S, including Propan-2-yl 2-methyl-5-(thiophene-2-carbonyloxy)-1-benzofuran-3-carboxylate, (Z)-2-(4-Ethylbenzylidene)-3-oxo-2,3-dihydrobenzofuran-6-yl methanesulfonate, 3-Benzyl-4-methyl-2-oxo-2H-chromen-7-yl methanesulfonate. 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 C18H16O5S?

C18H16O5S has a degree of unsaturation of 11. 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.