Molecular formula

C₁₉H₁₈O₃S

18 compounds have this formula on CompoundList.

Molar mass: 326.41g/mol
Monoisotopic mass: 328.1102Da
Atoms: 41
Elements: 4
Rings plus double bonds: 11

The formula C19H18O3S describes a molecule made of 19 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 × 1969.91%
12.011 × 19 = 228.209 g/mol
H Hydrogen × 185.56%
1.008 × 18 = 18.144 g/mol
O Oxygen × 314.70%
15.999 × 3 = 47.997 g/mol
S Sulfur × 19.82%
32.06 × 1 = 32.060 g/mol

Look up another formula

Compounds with the formula C19H18O3S

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

Showing 1 to 18 of 18 compounds

Ethyl 3-oxo-5-(thiophen-2-yl)-1,2,3,6-tetrahydro-[1,1'-biphenyl]-2-carboxylate

CAS 57320-22-6C₁₉H₁₈O₃S

2-(Naphthalen-1-yl)ethyl 4-methylbenzenesulfonate

CAS 4735-54-0C₁₉H₁₈O₃S

2,7-Nonadiyn-1-ol, 9-(2-naphthalenylsulfonyl)-

CAS 252880-58-3C₁₉H₁₈O₃S

(Z)-6-((3-Methylbut-2-en-1-yl)oxy)-2-((3-methylthiophen-2-yl)methylene)benzofuran-3(2H)-one

CAS 622808-59-7C₁₉H₁₈O₃S

2-(Naphthalen-2-yl)ethyl 4-methylbenzene-1-sulfonate

CAS 7175-35-1C₁₉H₁₈O₃S

Benzenecarbothioic acid, 4-methyl-, S-((tetrahydro-2-oxo-4-phenyl-3-furanyl)methyl) ester

CAS 98163-72-5C₁₉H₁₈O₃S

Naphthalen-1-yl 2,4,6-trimethylbenzenesulfonate

CAS 201014-93-9C₁₉H₁₈O₃S

Ethyl 2-oxo-6-phenyl-4-(thiophen-3-yl)cyclohex-3-ene-1-carboxylate

CAS 1205545-66-9C₁₉H₁₈O₃S

3-(5-(2-Methoxyethoxy)-2-methylphenyl)benzo[b]thiophene-5-carbaldehyde

CAS 1905454-65-0C₁₉H₁₈O₃S

Naphthalen-1-yl 2,4,5-trimethylbenzene-1-sulfonate

CAS 2305565-44-8C₁₉H₁₈O₃S

Naphthalen-2-yl 2,4,5-trimethylbenzene-1-sulfonate

CAS 2361684-19-5C₁₉H₁₈O₃S

4-Toluenesulfonic acid 4-azulylethyl ester

CAS 26154-63-2C₁₉H₁₈O₃S

2-Naphthaleneethan-I+/-,I+/--d2-ol, p-toluenesulfonate

CAS 29340-41-8C₁₉H₁₈O₃S

4-(Benzenesulfonyl)-4-benzylcyclohex-2-en-1-one

CAS 81842-33-3C₁₉H₁₈O₃S

4-Hydroxy-3-{1-[4-(methylsulfanyl)phenyl]propyl}-2H-1-benzopyran-2-one

CAS 89457-24-9C₁₉H₁₈O₃S

6-[2-(Benzenesulfinyl)-2-phenylethyl]-5,6-dihydro-2H-pyran-2-one

CAS 143724-96-3C₁₉H₁₈O₃S

(1,3-Dimethyl-1H-inden-1-yl)[4-(methanesulfonyl)phenyl]methanone

CAS 62291-88-7C₁₉H₁₈O₃S

1-(Naphthalen-2-yl)ethyl 4-methylbenzene-1-sulfonate

CAS 2757900-44-8C₁₉H₁₈O₃S

Frequently asked questions

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What is the molar mass of C19H18O3S?

The molar mass of C19H18O3S is 326.41 g/mol, calculated from standard atomic weights for 19 carbon atoms, 18 hydrogen atoms, 3 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 328.1102 Da.

How many compounds have the formula C19H18O3S?

CompoundList lists 18 compounds with the molecular formula C19H18O3S, including Ethyl 3-oxo-5-(thiophen-2-yl)-1,2,3,6-tetrahydro-[1,1'-biphenyl]-2-carboxylate, 2-(Naphthalen-1-yl)ethyl 4-methylbenzenesulfonate, 2,7-Nonadiyn-1-ol, 9-(2-naphthalenylsulfonyl)-. 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 C19H18O3S?

C19H18O3S 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.