Molecular formula
C18H18O3
310 compounds have this formula on CompoundList.
- Molar mass
- 282.34g/mol
- Monoisotopic mass
- 287.1570Da
- Atoms
- 39
- Elements
- 3
- Rings plus double bonds
- 10
The formula C18H18O3 describes a molecule made of 18 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 × 1876.57%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 186.43%1.008 × 18 = 18.144 g/mol
- O Oxygen × 317.00%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C18H18O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 310 compounds
Obovatol
CAS 83864-78-2C18H18O3
Ethyl 2-(3-benzoylphenyl)propanoate
CAS 60658-04-0C18H18O3
Erteberel
CAS 533884-09-2C18H18O3
4-Hydroxyequilenin
CAS 81608-60-8C18H18O3
Eugenyl phenylacetate
CAS 10402-33-2C18H18O3
2,3-Dihydro-6-(3-(2-hydroxymethyl)phenyl-2-propenyl)-benzofuranol
CAS 99134-29-9C18H18O3
Ethyl beta-oxo-alpha-phenylbenzenebutanoate
CAS 2901-29-3C18H18O3
Flurenol-butyl
CAS 2314-09-2C18H18O3
2,4-Dimethoxy-4'-methylchalcone
CAS 22920-53-2C18H18O3
2'-(Oxiranylmethoxy)-3-phenylpropiophenone
CAS 22525-95-7C18H18O3
2-Methoxy-4-prop-1-enylphenyl phenylacetate
CAS 120-24-1C18H18O3
![7,9,10-Trimethyl-1,2,3,4-tetrahydro-5H-benzo[c]furo[3,2-g]chromen-5-one chemical structure, C18H18O3, CAS 374709-68-9](/s/NDGOZESCJJKBME-UHFFFAOYSA-N.svg)
7,9,10-Trimethyl-1,2,3,4-tetrahydro-5H-benzo[c]furo[3,2-g]chromen-5-one
CAS 374709-68-9C18H18O3
![(2RS)-2-[3-(2,4-Dimethylbenzoyl)phenyl]propanoic Acid chemical structure, C18H18O3, CAS 1785759-59-2](/s/ZBFITRSZJZIQBJ-UHFFFAOYSA-N.svg)
(2RS)-2-[3-(2,4-Dimethylbenzoyl)phenyl]propanoic Acid
CAS 1785759-59-2C18H18O3
3-Butoxy-3-phenyl-2-benzofuran-1(3H)-one
CAS 296877-49-1C18H18O3
![3,4,11-Trimethyl-6,7,8,9-tetrahydro-2H-[1]benzofuro[3,2-g]chromen-2-one chemical structure, C18H18O3, CAS 117376-57-5](/s/YVOWKUKCANOWJK-UHFFFAOYSA-N.svg)
3,4,11-Trimethyl-6,7,8,9-tetrahydro-2H-[1]benzofuro[3,2-g]chromen-2-one
CAS 117376-57-5C18H18O3
2-(2,3,5,6-Tetramethylbenzoyl)benzoic acid
CAS 353777-07-8C18H18O3
![4-[5-Methyl-3-(5-methylfuran-2-yl)-1-benzofuran-2-yl]butan-2-one chemical structure, C18H18O3, CAS 220542-66-5](/s/LGWUYFGPDZNWRD-UHFFFAOYSA-N.svg)
4-[5-Methyl-3-(5-methylfuran-2-yl)-1-benzofuran-2-yl]butan-2-one
CAS 220542-66-5C18H18O3
Serba-2
CAS 533884-08-1C18H18O3
Isomagnolone
CAS 155709-41-4C18H18O3
3,4-Dimethoxy-4'-methylchalcone
CAS 72666-54-7C18H18O3
(1,1'-Biphenyl)-4-yl 3,3-dimethyl-2-oxobutanoate
CAS 853319-46-7C18H18O3
1,2-Bis(4-methoxyphenyl)-3-butyn-2-ol
CAS 101789-81-5C18H18O3
Randainol
CAS 93753-25-4C18H18O3
![2-Methoxy-4-[(E)-2-phenylethenyl]phenyl propanoate chemical structure, C18H18O3, CAS 302802-89-7](/s/LWOKFLOBPJQEBS-MDZDMXLPSA-N.svg)
2-Methoxy-4-[(E)-2-phenylethenyl]phenyl propanoate
CAS 302802-89-7C18H18O3
- trans-4,4'-Dimethoxy-beta-methylchalcone61000-04-2C18H18O3
- Stemofuran K439697-21-9C18H18O3
- (2E)-1-(2,4-Dimethoxyphenyl)-3-(4-methylphenyl)prop-2-en-1-one30929-45-4C18H18O3
- Xochitloldione140670-90-2C18H18O3
- 3-Butoxy-4-methyl-6H-benzo[c]chromen-6-one314744-80-4C18H18O3
- (2E)-1-(4-Ethoxyphenyl)-3-(4-methoxyphenyl)prop-2-en-1-one158575-01-0C18H18O3
- 4,4-Bis(4-hydroxyphenyl)cyclohexan-1-one77545-02-9C18H18O3
- Furan, 2,2'-[(4-methoxyphenyl)methylene]bis[5-methyl-86694-55-5C18H18O3
- 16-Hydroxy-equilenin131944-03-1C18H18O3
- (2E)-3-(2,3-Dimethoxyphenyl)-1-(2-methylphenyl)prop-2-en-1-one869475-97-8C18H18O3
- Phenol, 2-[3-hydroxy-4-(2-propenyl)phenoxy]-5-(2-propenyl)-135547-25-0C18H18O3
- Juncuenin D1161681-24-8C18H18O3
- 3-[[(2,3-Dihydro-1H-inden-5-yl)oxy]methyl]-4-methoxybenzaldehyde438531-13-6C18H18O3
- 3-Allyl-beta-lapachone69655-91-0C18H18O3
- 3,4-Bis(4-hydroxyphenyl)-2,4-hexadienol62080-78-8C18H18O3
- Benzoic acid, 3,5-dimethyl-, 1,1'-anhydride25569-79-3C18H18O3
- 1 suppliersPentanoic acid, 5-[(1,1'-biphenyl)-4-yl]-3-methy7320-97-0C18H18O3
- 2-Propen-1-one, 1,3-bis(4-methylphenyl)-2-methyl-, (E)-72129-77-2C18H18O3
- 9,10-Didehydroeffususol A1869082-57-4C18H18O3
- 2-(4-(1,1-Dimethylethyl)benzoyl)benzoic acid146-81-6C18H18O3
- (2Z)-1,3-Bis(4-methoxyphenyl)-2-buten-1-oneC18H18O3
- Ohobanin128502-81-8C18H18O3
- 3-Phenylpropanoic anhydride15781-96-1C18H18O3
- 2-[1,1'-Biphenyl]-4-yl-2-oxoethyl butyrate4376-30-1C18H18O3
- Methyl 3-[(2,3-dihydro-1H-inden-5-yloxy)methyl]benzoate832739-22-7C18H18O3
- Ethyl 2-benzyl-3-oxo-3-phenylpropanoate56409-75-7C18H18O3
- 3-(2-Allyl-phenoxymethyl)-4-methoxy-benzaldehyde861439-58-9C18H18O3
- 4-(4-Hydroxyphenyl)-1,2,3,3a,4,9b-hexahydrocyclopenta[c]chromen-8-ol533884-10-5C18H18O3
- Ethyl 3-[4-(benzyloxy)phenyl]acrylate104315-07-3C18H18O3
- (2E)-1-(3,4-Dimethoxyphenyl)-3-(4-methylphenyl)prop-2-en-1-one214264-38-7C18H18O3
- 5,6-Dimethoxy-3-phenyl-3,4-dihydronaphthalen-1(2H)-one70432-91-6C18H18O3
- 1,6,6-Trimethyl-6,7,8,9-tetrahydro-11H-benzo[h]furo[3,2-c]chromen-11-one1200798-75-9C18H18O3
- Ethyl 4-oxo-4-(4-phenylphenyl)butanoate1230-54-2C18H18O3
- Benzoic acid, 4-benzoyl-, butyl ester67055-68-9C18H18O3
- 2-(2,5-Dimethylphenyl)-2-oxoethyl 2-methylbenzoate379253-15-3C18H18O3
- 2-(2,3,4,5-Tetramethylbenzoyl)benzoic acid135965-32-1C18H18O3
- (2E)-3-(2,3-Dimethoxyphenyl)-1-(4-methylphenyl)prop-2-en-1-one198134-94-0C18H18O3
- (2E)-3-(4-Ethoxyphenyl)-1-(3-methoxyphenyl)prop-2-en-1-one358656-50-5C18H18O3
- 6-([1,1'-Biphenyl]-4-yl)-6-oxohexanoic acid5366-53-0C18H18O3
- Ethyl 4-oxo-3',4'-dihydro-2'H-spiro[cyclohexane-1,1'-naphthalene]-2,5-diene-4'-carboxylate1298083-24-5C18H18O3
- Methyl 5-oxo-3,5-diphenylpentanoate77565-69-6C18H18O3
- 2-Propen-1-one, 3-(4-ethoxyphenyl)-1-(4-methoxyphenyl)-74280-20-9C18H18O3
- 2-(2,5-Dimethylphenyl)-2-oxoethyl 4-methylbenzoate355152-02-2C18H18O3
- [3,5-Bis(cyclopropylcarbonyl)phenyl](cyclopropyl)methanone858493-59-1C18H18O3
- (2E)-3-(4-Ethoxyphenyl)-1-(4-methoxyphenyl)prop-2-en-1-one131887-83-7C18H18O3
- 2,6-Dimethylbenzoic anhydride73368-14-6C18H18O3
- 2-Acetoxy-4'-isopropylbenzophenone890098-36-9C18H18O3
- 2-Acetoxy-4'-propylbenzophenone890098-42-7C18H18O3
- 3-Acetoxy-4'-isopropylbenzophenone890099-82-8C18H18O3
- 4-Acetoxy-4'-isopropylbenzophenone890099-66-8C18H18O3
- 2,3-Dimethyl-3'-(1,3-dioxolan-2-yl)benzophenone898779-30-1C18H18O3
- 2,4-Dimethyl-3'-(1,3-dioxolan-2-yl)benzophenone898779-33-4C18H18O3
- 2,5-Dimethyl-3'-(1,3-dioxolan-2-yl)benzophenone898779-36-7C18H18O3
- 2,6-Dimethyl-3'-(1,3-dioxolan-2-yl)benzophenone898779-39-0C18H18O3
- 3,4-Dimethyl-3'-(1,3-dioxolan-2-yl)benzophenone898779-42-5C18H18O3
- 3,5-Dimethyl-3'-(1,3-dioxolan-2-yl)benzophenone898779-45-8C18H18O3
- 2,3-Dimethyl-4'-(1,3-dioxolan-2-yl)benzophenone898760-16-2C18H18O3
- 2,4-Dimethyl-4'-(1,3-dioxolan-2-yl)benzophenone898760-19-5C18H18O3
- 2,5-Dimethyl-4'-(1,3-dioxolan-2-yl)benzophenone898760-22-0C18H18O3
- 2,6-Dimethyl-4'-(1,3-dioxolan-2-yl)benzophenone898760-25-3C18H18O3
- 3,4-Dimethyl-4'-(1,3-dioxolan-2-yl)benzophenone898760-28-6C18H18O3
- 3,5-Dimethyl-4'-(1,3-dioxolan-2-yl)benzophenone898760-31-1C18H18O3
- 2-(2-Benzylphenoxy)ethyl acrylate1193170-24-9C18H18O3
- Sonnerphenolic B1627516-10-2C18H18O3
- 1-(3,7-Dihydroxy-2,8-dimethyl-9,10-dihydro-4-phenanthrenyl)ethanone77305-81-8C18H18O3
- 4-[1-(4-Hydroxyphenyl)penta-1,4-dien-3-yl]-2-methoxyphenol90332-37-9C18H18O3
- Butyl o-benzoylbenzoate571-98-2C18H18O3
- tert-Butyl 2-benzoylbenzoate54354-02-8C18H18O3
- Propanoic acid, 2-methyl-, 2-[1,1'-biphenyl]-4-yl-2-oxoethyl ester69787-81-1C18H18O3
- 5-[(4-Methoxyphenyl)methyl]-6-prop-2-enyl-1,3-benzodioxole71712-28-2C18H18O3
- 2,6-Dimethylphenyl (2E)-3-(2-methoxyphenyl)prop-2-enoate691365-52-3C18H18O3
- 4-(Benzyloxy)-3-methoxy-5-(prop-2-en-1-yl)benzaldehyde70205-03-7C18H18O3
- (2E)-3-(2,5-Dimethoxyphenyl)-1-(4-methylphenyl)prop-2-en-1-one198134-95-1C18H18O3
- Ethyl 3-oxo-4,4-diphenylbutanoate25022-02-0C18H18O3
- 7-Benzyloxy-2,3-dihydro-2,2-dimethyl-4-oxobenzopyran59257-86-2C18H18O3
- (3-Phenoxyphenyl)methyl 3-methylbut-2-enoate65980-55-4C18H18O3
Frequently asked questions
What is the molar mass of C18H18O3?
The molar mass of C18H18O3 is 282.34 g/mol, calculated from standard atomic weights for 18 carbon atoms, 18 hydrogen atoms and 3 oxygen atoms. The monoisotopic mass is 287.1570 Da.
How many compounds have the formula C18H18O3?
CompoundList lists 310 compounds with the molecular formula C18H18O3, including Obovatol, Ethyl 2-(3-benzoylphenyl)propanoate, Erteberel. 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 C18H18O3?
C18H18O3 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.