Molecular formula

C₁₁H₁₈O₃

730 compounds have this formula on CompoundList.

Molar mass: 198.26g/mol
Monoisotopic mass: 201.1444Da
Atoms: 32
Elements: 3
Rings plus double bonds: 3

The formula C11H18O3 describes a molecule made of 11 carbon atoms, 18 hydrogen atoms and 3 oxygen atoms. 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 × 1166.64%
12.011 × 11 = 132.121 g/mol
H Hydrogen × 189.15%
1.008 × 18 = 18.144 g/mol
O Oxygen × 324.21%
15.999 × 3 = 47.997 g/mol

Look up another formula

Compounds with the formula C11H18O3

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

Showing 701 to 730 of 730 compounds

Ethyl trans-1,2-dimethyl-6-oxo-cyclohexanecarboxylate

CAS 144192-35-8C₁₁H₁₈O₃

8-Ethyl-1,4-dioxaspiro[4.5]decane-8-carbaldehyde

CAS 1207111-67-8C₁₁H₁₈O₃

Methyl 3-(hydroxymethyl)bicyclo[2.2.2]octane-2-carboxylate

CAS 1823617-18-0C₁₁H₁₈O₃

Methyl 3-(hydroxymethyl)-5-methylcyclohept-3-ene-1-carboxylate

CAS 1822822-82-1C₁₁H₁₈O₃

1-Oxaspiro[5.5]undecane-2-carboxylic acid

CAS 1864707-30-1C₁₁H₁₈O₃

Methyl (2R,3S)-3-(hydroxymethyl)bicyclo[2.2.2]octane-2-carboxylate

CAS 1932783-18-0C₁₁H₁₈O₃

2-[(Oxolan-3-yl)methyl]cyclopentane-1-carboxylic acid

CAS 1935250-85-3C₁₁H₁₈O₃

Methyl rel-(2R,3R)-3-(hydroxymethyl)bicyclo[2.2.2]octane-2-carboxylate

CAS 187456-74-2C₁₁H₁₈O₃

Cyclohexyl tetrahydrofuran-2-carboxylate

CAS 2719680-40-5C₁₁H₁₈O₃

Ethyl 4-ethyl-3-oxohept-6-enoate

CAS 793712-21-7C₁₁H₁₈O₃

tert-Butyl (R,E)-3-(tetrahydrofuran-2-yl)acrylate

CAS 2864361-58-8C₁₁H₁₈O₃

tert-Butyl (S,E)-3-(tetrahydrofuran-2-yl)acrylate

CAS 2864361-57-7C₁₁H₁₈O₃

tert-Butyl rel-(1R,3S,4S)-3-methoxybicyclo[2.1.0]pentane-1-carboxylate

CAS 2410594-50-0C₁₁H₁₈O₃

Ethyl 6-hydroxyspiro[2.5]octane-6-carboxylate

CAS 2006939-04-2C₁₁H₁₈O₃

(1S,4S)-4-Isopropyl-1-methyl-2-oxo-cyclohexanecarboxylic acid

CAS 99956-80-6C₁₁H₁₈O₃

Methyl 2-hydroxy-2-[1-(pent-1-en-1-yl)cyclopropyl]acetate

CAS 2229680-70-8C₁₁H₁₈O₃

(1RS,3RS)-2,2-Dimethyl-3-[(5R)-5-methyloxolan-2-yl]cyclopropane-1-carboxylic acid

CAS 2228045-97-2C₁₁H₁₈O₃

rac-(1R,3R)-3-(3-Ethyloxetan-3-yl)-2,2-dimethylcyclopropane-1-carboxylic acid

CAS 2227703-29-7C₁₁H₁₈O₃

2-Methoxy-2-[1-(pent-1-en-1-yl)cyclopropyl]acetic acid

CAS 2229655-32-5C₁₁H₁₈O₃

Methyl 4-ethylidene-1-(hydroxymethyl)cyclohexane-1-carboxylate

CAS 2932440-77-0C₁₁H₁₈O₃

Methyl 2-[(1R,3R)-2,2-dimethyl-3-(2-oxopropyl)cyclopropyl]acetate

C₁₁H₁₈O₃

Methyl (E)-6-ethyl-4-oxooct-2-enoate

C₁₁H₁₈O₃

(3R)-3-Ethyl-1,4-dioxaspiro[4.5]decane-3-carbaldehyde

CAS 141521-22-4C₁₁H₁₈O₃

Ethyl 2-ethyl-4-hydroxy-3-methylcyclopentene-1-carboxylate

CAS 725229-39-0C₁₁H₁₈O₃

Frequently asked questions

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What is the molar mass of C11H18O3?

The molar mass of C11H18O3 is 198.26 g/mol, calculated from standard atomic weights for 11 carbon atoms, 18 hydrogen atoms and 3 oxygen atoms. The monoisotopic mass is 201.1444 Da.

How many compounds have the formula C11H18O3?

CompoundList lists 730 compounds with the molecular formula C11H18O3, including Ethyl trans-1,2-dimethyl-6-oxo-cyclohexanecarboxylate, 8-Ethyl-1,4-dioxaspiro[4.5]decane-8-carbaldehyde, Methyl 3-(hydroxymethyl)bicyclo[2.2.2]octane-2-carboxylate. 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 C11H18O3?

C11H18O3 has a degree of unsaturation of 3. 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.