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 101 to 200 of 310 compounds
4-Acetoxy-4'-propylbenzophenone
CAS 890099-72-6C18H18O3
Ethyl 4-(3-phenylpropanoyl)benzoate
CAS 898764-15-3C18H18O3
![3-[2-(2,3,6-Trimethylphenoxy)phenyl]prop-2-enoic acid chemical structure, C18H18O3, CAS 1097780-66-9](/s/WXPOLSQBRBTEDI-ZHACJKMWSA-N.svg)
3-[2-(2,3,6-Trimethylphenoxy)phenyl]prop-2-enoic acid
CAS 1097780-66-9C18H18O3
2,4-Dimethylbenzoic anhydride
CAS 66553-30-8C18H18O3
4-(Benzyloxy)-3-(cyclopropylmethoxy)benzaldehyde
CAS 1381886-14-1C18H18O3
Ethyl (3-methyl-4-phenylbenzoyl)acetate
CAS 1260817-78-4C18H18O3
![3-Benzyl-4-[hydroxy(phenyl)methyl]oxolan-2-one chemical structure, C18H18O3, CAS 7469-52-5](/s/CNACBLYXOGJIDY-UHFFFAOYSA-N.svg)
3-Benzyl-4-[hydroxy(phenyl)methyl]oxolan-2-one
CAS 7469-52-5C18H18O3
2-Ethoxy-3-methoxy-2-phenyl-2H-chromene
CAS 6631-19-2C18H18O3
(E)-4-Ethylphenyl 3-(4-methoxyphenyl)acrylate
CAS 141180-97-4C18H18O3
![4-Propyl-6,7,8,9-tetrahydro-2H-[1]benzofuro[3,2-g]chromen-2-one chemical structure, C18H18O3, CAS 95184-96-6](/s/BBIAXUCFGOSBEZ-UHFFFAOYSA-N.svg)
4-Propyl-6,7,8,9-tetrahydro-2H-[1]benzofuro[3,2-g]chromen-2-one
CAS 95184-96-6C18H18O3
Methyl 4-(2,4,6-trimethylbenzoyl)benzoate
CAS 51885-82-6C18H18O3
2-Hydroxy-7-(3-methylbutoxy)fluoren-9-one
CAS 5849-02-5C18H18O3
(2E)-1-(2,4-Dimethoxyphenyl)-3-(2-methylphenyl)prop-2-en-1-one
CAS 415686-07-6C18H18O3
(2E)-1-(4-Ethoxyphenyl)-3-(3-methoxyphenyl)prop-2-en-1-one
CAS 6002-50-2C18H18O3
![Methyl (1R*,2R*)-2-[2-(2-naphtyl)cyclopropyl]-3-methoxypropenoate chemical structure, C18H18O3, CAS 454431-15-3](/s/UELLOFPYXSLCBP-KDUYSQSBSA-N.svg)
Methyl (1R*,2R*)-2-[2-(2-naphtyl)cyclopropyl]-3-methoxypropenoate
CAS 454431-15-3C18H18O3
(2E)-1-(3,4-Dimethoxyphenyl)-3-(2-methylphenyl)prop-2-en-1-one
CAS 214264-37-6C18H18O3
(E)-1-(3,4-Dimethoxyphenyl)-3-(3-methylphenyl)prop-2-en-1-one
CAS 198125-17-6C18H18O3
1-Propanone, 1,1'-(oxydi-4,1-phenylene)bis-
CAS 20176-55-0C18H18O3
5-Benzyloxy-1,2,3,4-tetrahydronaphthalene-1-carboxylic acid
CAS 405102-95-6C18H18O3
3-Acetoxy-4'-propylbenzophenone
CAS 890099-90-8C18H18O3
2'-(2,3-Epoxypropoxy)-3-phenylpropiophenone-d5
CAS 1189450-87-0C18H18O3
6-(4-Methoxy-benzyloxy)-3,4-dihydro-2H-naphthalen-1-one
CAS 139149-06-7C18H18O3
Benzeneacetic acid, 2-methyl-, anhydride with 2-methylbenzeneacetic acid
CAS 596826-60-7C18H18O3
Methyl 3-(2,4-dimethylphenyl)-3-phenyloxirane-2-carboxylate
CAS 1507762-64-2C18H18O3
- Methyl 2-benzyl-4-oxo-4-phenylbutanoate6938-59-6C18H18O3
- 5-Ethoxy-6-(1-phenylprop-2-enyl)-1,3-benzodioxole71712-50-0C18H18O3
- 2-Methyl-6-(2,4,6-trimethylbenzoyl)benzoic acid2346-68-1C18H18O3
- 3-Methyl-2-(2,4,6-trimethylbenzoyl)benzoic acid2509-46-8C18H18O3
- 4-Formylphenyl 4-tert-butylbenzoate132145-48-3C18H18O3
- 2,3,4-Trimethyl-8,9,10,11-tetrahydro-7H-benzo[c]furo[2,3-f]chromen-7-one374758-92-6C18H18O3
- 2-(2-Acetylphenoxy)-1-(3,4-dimethylphenyl)ethanone540520-59-0C18H18O3
- 3,4-Bis(p-methoxyphenyl)-3-buten-2-one56622-38-9C18H18O3
- (2E)-1-(2,4-Dimethoxyphenyl)-3-(3-methylphenyl)prop-2-en-1-one903309-41-1C18H18O3
- Benzofuran, 4,6-dimethoxy-2-methyl-3-(phenylmethyl)-831171-04-1C18H18O3
- 2H-1-Benzopyran-2-carboxylic acid, 3,4-dihydro-6-phenyl-, ethyl ester56926-28-4C18H18O3
- 6-Benzyloxy-1,2,3,4-tetrahydro-naphthalene-2-carboxylic Acid93877-89-5C18H18O3
- 4-Cyclopropylmethoxy-3-(4'-methoxyphenyl)benzenecarboxaldehyde628711-49-9C18H18O3
- Ethyl 2-(3-phenylpropanoyl)benzoate898764-10-8C18H18O3
- Ethyl 3-(3-phenylpropanoyl)benzoate898764-12-0C18H18O3
- 3-(4-Hydroxy-3,5-dimethylphenyl)-1-(2-methoxyphenyl)prop-2-en-1-one824932-86-7C18H18O3
- 1,3-Diphenylprop-2-en-1-yl ethyl carbonate121440-71-9C18H18O3
- 1-{3-[2-(3,5-Dimethoxyphenyl)ethenyl]phenyl}ethan-1-one1394810-25-3C18H18O3
- Dexketoprofen ethyl ester136656-97-8C18H18O3
- 1,3-Propanedione,1-(4-methoxyphenyl)-2,2-dimethyl-3-phenyl-71591-81-6C18H18O3
- 1-Methoxy-4,4-dimethyl-1-phenylisochromen-3-one14596-91-9C18H18O3
- 2-(3,4-Dimethylphenyl)-2-oxoethyl 4-methylbenzoate352672-01-6C18H18O3
- 2-(4-Ethylphenyl)-2-oxoethyl 2-methylbenzoate524042-90-8C18H18O3
- 2-(4-Ethylphenyl)-2-oxoethyl 3-methylbenzoate524042-91-9C18H18O3
- 2-(4-Ethylphenyl)-2-oxoethyl 4-methylbenzoate524042-92-0C18H18O3
- 10,11-Dimethyl-2,3,4,5-tetrahydrocyclohepta[c]furo[3,2-g]chromen-6(1H)-one858748-11-5C18H18O3
- (Z)-1,3-Bis(4-methoxyphenyl)but-2-en-1-oneC18H18O3
- (2-Methyl-4-oxo-3-prop-2-enylcyclopent-2-en-1-yl) (E)-3-phenylprop-2-enoate7461-97-4C18H18O3
- (2E)-1-(2,5-Dimethoxyphenyl)-3-(4-methylphenyl)prop-2-en-1-one38169-52-7C18H18O3
- Anthracene, 1,4,10-trimethoxy-6-methyl-834867-37-7C18H18O3
- Anthracene, 1,4,10-trimethoxy-5-methyl-834867-39-9C18H18O3
- 1(2H)-Naphthalenone, 3-(3,4-dimethoxyphenyl)-3,4-dihydro-61696-80-8C18H18O3
- 6,8,8-Trimethyl-2,3-dihydro-8H-cyclopenta[c]pyrano[3,2-g]chromen-4(1H)-one931308-30-4C18H18O3
- 2-(4-Butylbenzoyl)benzoic acid59581-78-1C18H18O3
- (2E)-3-(2,3-Dimethoxyphenyl)-1-(3-methylphenyl)prop-2-en-1-one1354942-16-7C18H18O3
- (2E)-3-(2,4-Dimethoxyphenyl)-1-(3-methylphenyl)prop-2-en-1-one1354941-41-5C18H18O3
- (2E)-3-(3,4-Dimethoxyphenyl)-1-(3-methylphenyl)prop-2-en-1-one865834-28-2C18H18O3
- 1-(4,5-Dimethoxy-2-methylphenyl)-2-phenylprop-2-en-1-one85524-76-1C18H18O3
- 4-[[(5,6,7,8-Tetrahydro-2-naphthalenyl)oxy]methyl]benzoic acid149288-66-4C18H18O3
- 4'-(Tetrahydropyran-2-yloxy)biphenyl-4-carbaldehyde221209-50-3C18H18O3
- 3-(2-Cyclohexylideneethyl)-4-hydroxynaphthalene-1,2-dione36417-21-7C18H18O3
- (E)-Methyl 4-((2-(prop-1-en-1-yl)phenoxy)methyl)benzoate431072-02-5C18H18O3
- Methyl 4-[(2,3-dihydro-1H-inden-5-yloxy)methyl]benzoate149288-54-0C18H18O3
- 9-tert-Butyl-2,3-dihydrocyclopenta[c]furo[3,2-g]chromen-4(1H)-one858754-24-2C18H18O3
- 5-Ethoxy-6-[(E)-3-phenylprop-2-enyl]-1,3-benzodioxole61006-19-7C18H18O3
- (2E)-1-(2,5-Dimethoxyphenyl)-3-(2-methylphenyl)prop-2-en-1-one850373-06-7C18H18O3
- (2E)-1-(2,5-Dimethoxyphenyl)-3-(3-methylphenyl)prop-2-en-1-one38169-51-6C18H18O3
- (2E)-3-(3,4-Dimethoxyphenyl)-1-(2-methylphenyl)prop-2-en-1-one1354942-41-8C18H18O3
- (2E)-3-(2,4-Dimethoxyphenyl)-1-(2-methylphenyl)prop-2-en-1-one1354941-79-9C18H18O3
- 1,3-Propanedione, 1-(2,4-dimethylphenyl)-3-(4-methoxyphenyl)-93885-98-4C18H18O3
- 2-Methyl-1-phenyl-4-(phenylmethoxy)-1,3-butanedione426833-01-4C18H18O3
- (3E)-4-[4-(Benzyloxy)-3-methoxyphenyl]but-3-en-2-one75335-47-6C18H18O3
- 2-(2-tert-Butylbenzoyl)benzoic acid142354-72-1C18H18O3
- (2E)-3-(2,5-Dimethoxyphenyl)-1-(3-methylphenyl)prop-2-en-1-one1354941-44-8C18H18O3
- 2-([1,1'-Biphenyl]-2-yloxy)ethyl 2-methyl-2-propenoate204444-28-0C18H18O3
- 1-{3-[(2,3-Dihydro-1H-inden-2-yl)oxy]-4-methoxyphenyl}ethan-1-one115898-73-2C18H18O3
- Ethyl 3-benzyl-2,3-dihydro-1-benzofuran-5-carboxylate861398-61-0C18H18O3
- 2,4,6-Trimethyl-7-oxo-1,3,5-cycloheptatrien-1-yl 3-methylbenzoate864437-20-7C18H18O3
- (2E)-3-(2-Ethoxyphenyl)-1-(4-methoxyphenyl)prop-2-en-1-one358656-32-3C18H18O3
- (2E)-1-(4-Ethoxyphenyl)-3-(2-methoxyphenyl)prop-2-en-1-one1801686-30-5C18H18O3
- 2-Phenylpropionic anhydride57780-74-2C18H18O3
- (2E)-3-(2-Ethoxyphenyl)-1-(3-methoxyphenyl)prop-2-en-1-one358656-49-2C18H18O3
- 3-Benzyl-7,7-dimethyl-7,8-dihydro-2H-chromene-2,5(6H)-dione1000697-58-4C18H18O3
- 3-Benzyloxy-2-cyclopropylmethoxy-benzaldehyde1036383-35-3C18H18O3
- Methyl 4-(benzyloxy)-2-(prop-1-en-2-yl)benzoate1529775-66-3C18H18O3
- (2E)-3-(2,5-Dimethoxyphenyl)-1-(2-methylphenyl)prop-2-en-1-one1354941-48-2C18H18O3
- Cyclopropyl [4-(1,3-dioxan-2-yl)-2-naphthyl]methanone925441-70-9C18H18O3
- Allyl 4-((2-methylbenzyl)oxy)benzoate1706463-01-5C18H18O3
- Ethyl 1-(4'-hydroxy-[1,1'-biphenyl]-4-yl)cyclopropanecarboxylate1520090-87-2C18H18O3
- Juncatrin A2265925-12-8C18H18O3
- 2-(Benzyloxy)-3-(cyclopropylmethoxy)benzaldehyde2817266-72-9C18H18O3
- tert-Butyl3'-formyl-[1,1'-biphenyl]-3-carboxylate2639428-13-8C18H18O3
- 2,3-Dihydro-5,6-dimethoxy-2-methyl-3-phenyl-1H-inden-1-one4082-26-2C18H18O3
- 9H-Xanthen-9-one, 1-butoxy-3-methyl-127731-64-0C18H18O3
- 7-Benzyl-5-hydroxy-2,2-dimethyl-2,3-dihydro-4H-chromen-4-one496875-34-4C18H18O3
- (2,5-Dimethylphenyl) 3-(4-methoxyphenyl)prop-2-enoate6986-83-0C18H18O3
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 4-Acetoxy-4'-propylbenzophenone, Ethyl 4-(3-phenylpropanoyl)benzoate, 3-[2-(2,3,6-Trimethylphenoxy)phenyl]prop-2-enoic acid. 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.