Molecular formula

C₁₈H₂₆O₃

119 compounds have this formula on CompoundList.

Molar mass: 290.40g/mol
Monoisotopic mass: 294.2104Da
Atoms: 47
Elements: 3
Rings plus double bonds: 6

The formula C18H26O3 describes a molecule made of 18 carbon atoms, 26 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 × 1874.45%
12.011 × 18 = 216.198 g/mol
H Hydrogen × 269.02%
1.008 × 26 = 26.208 g/mol
O Oxygen × 316.53%
15.999 × 3 = 47.997 g/mol

Look up another formula

Compounds with the formula C18H26O3

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

Showing 101 to 119 of 119 compounds

2-[1-(3-Hydroxypropoxy)cyclohexyl]-1-phenylpropan-1-one

CAS 652146-17-3C₁₈H₂₆O₃

Ethyl (1-hydroxy-5-phenylcyclooctyl)acetate

CAS 62702-35-6C₁₈H₂₆O₃

3-{[(Benzyloxy)methoxy]methyl}-7-methylocta-2,6-dien-1-ol

CAS 87829-24-1C₁₈H₂₆O₃

5-Oxooctadeca-6,8,11,14-tetraenoic acid

CAS 874743-83-6C₁₈H₂₆O₃

(3R)-8-[(2S,3S)-3-Heptyloxiran-2-yl]-8-methoxyoct-1-ene-4,6-diyn-3-ol

CAS 833487-21-1C₁₈H₂₆O₃

3-[(2R)-2-Ethoxy-2-phenylethyl]-3-methylheptane-2,6-dione

CAS 917985-11-6C₁₈H₂₆O₃

(8R,9S,10R,13S,14S,16S,17R)-16,17-Dihydroxy-13-methyl-2,6,7,8,9,10,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-one

CAS 24815-96-1C₁₈H₂₆O₃

Trisporic acid A

CAS 161023-29-6C₁₈H₂₆O₃

(1S,4aR,5S,8aR)-1,4a-Dimethyl-6-methylidene-5-[(E)-3-oxobut-1-enyl]-3,4,5,7,8,8a-hexahydro-2H-naphthalene-1-carboxylic acid

C₁₈H₂₆O₃

(8R,9S,10R,13S,14S,16S,17R)-16,17-Dihydroxy-13-methyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3(2H)-one

C₁₈H₂₆O₃

3-(Prop-2-yn-1-yloxy)propyl 2-(adamantan-1-yl)acetate

CAS 2442538-47-6C₁₈H₂₆O₃

4-(2-Isobutoxy-5-methylphenyl)cyclohexanecarboxylic acid

CAS 3078430-01-7C₁₈H₂₆O₃

8-(4-Isobutylphenyl)-1,4-dioxaspiro[4.5]decan-8-ol

CAS 2918965-65-6C₁₈H₂₆O₃

Benzeneethanol, 4-((5-(3,3-dimethyloxiranyl)-3-methyl-2-pentenyl)oxy)-, (E)-

CAS 52662-57-4C₁₈H₂₆O₃

2-Ethylhexyl 3-(2-methoxyphenyl)prop-2-enoate

CAS 122870-38-6C₁₈H₂₆O₃

tert-Butyl 4-(4-(tert-butyl)phenyl)-4-oxobutanoate

CAS 1522362-09-9C₁₈H₂₆O₃

(3aR,5aR,6S,9aS,9bS)-3a-Methyl-6-(3-oxobutyl)decahydro-3H-cyclopenta[a]naphthalene-3,7(3aH)-dione

CAS 59285-71-1C₁₈H₂₆O₃

3-Methylidene-6-[2-[2-(4-methylidenehex-5-ynoxy)ethoxy]ethoxy]hex-1-yne

CAS 201665-23-8C₁₈H₂₆O₃

16,17-Dihydroxy-13-methyl-2,6,7,8,9,10,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-one

C₁₈H₂₆O₃

Frequently asked questions

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What is the molar mass of C18H26O3?

The molar mass of C18H26O3 is 290.40 g/mol, calculated from standard atomic weights for 18 carbon atoms, 26 hydrogen atoms and 3 oxygen atoms. The monoisotopic mass is 294.2104 Da.

How many compounds have the formula C18H26O3?

CompoundList lists 119 compounds with the molecular formula C18H26O3, including 2-[1-(3-Hydroxypropoxy)cyclohexyl]-1-phenylpropan-1-one, Ethyl (1-hydroxy-5-phenylcyclooctyl)acetate, 3-{[(Benzyloxy)methoxy]methyl}-7-methylocta-2,6-dien-1-ol. 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 C18H26O3?

C18H26O3 has a degree of unsaturation of 6. 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.