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 201 to 300 of 310 compounds
![3-Buten-2-one, 4-[4-methoxy-3-(phenylmethoxy)phenyl]- chemical structure, C18H18O3, CAS 75925-64-3](/s/KTQHQHQLAIWFBN-UHFFFAOYSA-N.svg)
3-Buten-2-one, 4-[4-methoxy-3-(phenylmethoxy)phenyl]-
CAS 75925-64-3C18H18O3
![3-[4-(Phenylmethoxy)phenyl]-2,4-pentanedione chemical structure, C18H18O3, CAS 163930-32-3](/s/HHWUWQANOROBER-UHFFFAOYSA-N.svg)
3-[4-(Phenylmethoxy)phenyl]-2,4-pentanedione
CAS 163930-32-3C18H18O3
![2-Methyl-2-[4-(1-phenylethenyl)phenoxy]propanoic acid chemical structure, C18H18O3, CAS 62402-51-1](/s/RGFOIWHHUIOAMO-UHFFFAOYSA-N.svg)
2-Methyl-2-[4-(1-phenylethenyl)phenoxy]propanoic acid
CAS 62402-51-1C18H18O3
2-(2,5-Dimethylphenyl)-2-oxoethyl phenylacetate
CAS 378215-25-9C18H18O3
![4,4'-Oxybis[2-(prop-2-en-1-yl)phenol] chemical structure, C18H18O3, CAS 105329-34-8](/s/QEILNQWHQJSWST-UHFFFAOYSA-N.svg)
4,4'-Oxybis[2-(prop-2-en-1-yl)phenol]
CAS 105329-34-8C18H18O3
6-(3-Methoxybenzyloxy)-3,4-dihydronaphthalen-1(2H)-one
CAS 66361-73-7C18H18O3
3-Benzoyl-2-butylbenzoic acid
CAS 89393-43-1C18H18O3
![Benzoic acid, 2-[4-(2-methylpropyl)benzoyl]- chemical structure, C18H18O3, CAS 101789-77-9](/s/SRZNZJUVQXLEOW-UHFFFAOYSA-N.svg)
Benzoic acid, 2-[4-(2-methylpropyl)benzoyl]-
CAS 101789-77-9C18H18O3
Methyl I+/--benzoylbenzenebutanoate
CAS 204767-34-0C18H18O3
Diphenylmethyl 4-oxopentanoate
CAS 162038-78-0C18H18O3
(2E)-3-(4-Ethoxyphenyl)-1-(2-methoxyphenyl)prop-2-en-1-one
CAS 1181788-49-7C18H18O3
Ethyl 2-(2,4-dimethylbenzoyl)benzoate
CAS 134098-86-5C18H18O3
Ethyl 2-benzoyl-4,5-dimethylbenzoate
CAS 134098-87-6C18H18O3
p-Biphenyloxy ethyl methacrylate
CAS 121711-42-0C18H18O3
![{2,4-Dimethyl-6-[(oxiran-2-yl)methoxy]phenyl}(phenyl)methanone chemical structure, C18H18O3, CAS 62261-88-5](/s/JQZMKAZESTXDAI-UHFFFAOYSA-N.svg)
{2,4-Dimethyl-6-[(oxiran-2-yl)methoxy]phenyl}(phenyl)methanone
CAS 62261-88-5C18H18O3
![{3,6-Dimethyl-2-[(oxiran-2-yl)methoxy]phenyl}(phenyl)methanone chemical structure, C18H18O3, CAS 62261-98-7](/s/XIAUINQKNKIDML-UHFFFAOYSA-N.svg)
{3,6-Dimethyl-2-[(oxiran-2-yl)methoxy]phenyl}(phenyl)methanone
CAS 62261-98-7C18H18O3
10,10-Diethoxyanthracen-9(10H)-one
CAS 64420-65-1C18H18O3
2-(4-Phenoxyphenoxy)cyclohexan-1-one
CAS 61645-94-1C18H18O3
5,6-Dimethoxy-2-methyl-2-phenyl-2,3-dihydro-1H-inden-1-one
CAS 85524-70-5C18H18O3
4,5-Dimethoxy-7-methyl-2-phenyl-2,3-dihydro-1H-inden-1-one
CAS 85524-77-2C18H18O3
![4-[2-(4-Hydroxyphenyl)propan-2-yl]phenyl prop-2-enoate chemical structure, C18H18O3, CAS 148861-70-5](/s/CAESUTHCWWVNCB-UHFFFAOYSA-N.svg)
4-[2-(4-Hydroxyphenyl)propan-2-yl]phenyl prop-2-enoate
CAS 148861-70-5C18H18O3
Ethyl 3-(2-benzylphenyl)-3-oxopropanoate
CAS 165043-13-0C18H18O3
![1,1'-[Oxybis(methylene-4,1-phenylene)]di(ethan-1-one) chemical structure, C18H18O3, CAS 142495-24-7](/s/PFMVPBWNSIMQMI-UHFFFAOYSA-N.svg)
1,1'-[Oxybis(methylene-4,1-phenylene)]di(ethan-1-one)
CAS 142495-24-7C18H18O3
(2E)-3-(2-Ethoxyphenyl)-1-(2-methoxyphenyl)prop-2-en-1-one
CAS 1175867-24-9C18H18O3
- Methyl 2-allyl-6-(benzyloxy)benzoate1243260-44-7C18H18O3
- 2-Methylpropyl 4-benzoylbenzoate67055-74-7C18H18O3
- 3-(2,5-Dimethoxyphenyl)-3-phenylcyclobutanone1381865-00-4C18H18O3
- 2-Propenoic acid,3-[2-methyl-4-(phenylmethoxy)phenyl]-,methyl ester847348-48-5C18H18O3
- (4-Phenoxyphenyl)(tetrahydro-2H-pyran-4-yl)methanone1487602-14-1C18H18O3
- 4,6-Dimethoxy-2-methyl-3-(4-methylphenyl)-1-benzofuran922140-81-6C18H18O3
- Methyl 5-([1,1'-biphenyl]-4-yl)-5-oxopentanoate51994-34-4C18H18O3
- 6-((4-Methoxybenzyl)oxy)-2,3-dihydro-1H-indene-5-carbaldehyde1132712-75-4C18H18O3
- 4-(4-Isobutyrylbenzyloxy)benzaldehyde1187212-27-6C18H18O3
- 3-(Benzyloxy)-4-(cyclopropylmethoxy)benzaldehyde1234500-52-7C18H18O3
- Allyl 4-[(4-methylbenzyl)oxy]benzoate1706431-37-9C18H18O3
- 1-(4'-Ethoxy-[1,1'-biphenyl]-4-yl)cyclopropanecarboxylic acid3078368-00-7C18H18O3
- Ethyl 2'-acetyl-5'-methyl[1,1'-biphenyl]-4-carboxylate1233011-54-5C18H18O3
- 3-(2-Phenylchroman-6-yl)propanoic acid1623142-34-6C18H18O3
- Methyl 1-[4-(phenylmethoxy)phenyl]cyclopropanecarboxylate2089158-03-0C18H18O3
- 1-(2-Hydroxyphenyl)-3-phenylhexane-1,5-dione2514748-07-1C18H18O3
- tert-Butyl 4'-formyl-[1,1'-biphenyl]-4-carboxylate1414997-85-5C18H18O3
- 4-(Benzyloxy)-2-(cyclopropylmethoxy)benzaldehyde2749766-80-9C18H18O3
- 2-(Benzyloxy)-1-ethynyl-3-(2-methoxyethoxy)benzene2819704-09-9C18H18O3
- 7-Benzyloxy-3,3-dimethyl-chroman-4-one2720589-41-1C18H18O3
- 3-Methoxygona-1(10),2,4,9(11)-tetraene-15,17-dione3744-77-2C18H18O3
- 4-Hydroxy-4-methyl-3-phenoxy-1-phenyl-2-penten-1-one55337-62-7C18H18O3
- 2-(2,6-Dimethylbenzoyl)-3-methylbenzeneacetic acid854624-11-6C18H18O3
- Ethyl 1,2-dihydro-I(3)-oxo-5-acenaphthylenebutanoate16294-61-4C18H18O3
- 1,2,3,4-Tetrahydro-7-(phenylmethoxy)-2-naphthalenecarboxylic acid31846-37-4C18H18O3
- 2,3-Dihydro-7-hydroxy-2-phenyl-6-propyl-4H-1-benzopyran-4-one25922-13-8C18H18O3
- Ethyl 2-phenyl-3,4-dihydro-2H-1-benzopyran-3-carboxylate21763-08-6C18H18O3
- 1-(2'-Ethoxy-[1,1'-biphenyl]-4-yl)cyclopropanecarboxylic acid3078379-28-6C18H18O3
- 1-(3'-Ethoxy-[1,1'-biphenyl]-4-yl)cyclopropanecarboxylic acid3078381-51-5C18H18O3
- 6-(2,4-Dimethoxyphenyl)-3,4-dihydronaphthalen-1(2H)-one3078354-89-6C18H18O3
- 1-[4-[(2-Methylpropan-2-yl)oxy]phenyl]-2-phenylethane-1,2-dione2765661-16-1C18H18O3
- 3,4-Bis(4-methoxyphenyl)but-3-en-2-oneC18H18O3
- 3-Formylphenyl 4-tert-butylbenzoate831192-44-0C18H18O3
- Phenol, 4,4'-(1-ethylidene-2-(2-hydroxyethylidene)-1,2-ethanediyl)bis-, (Z,Z)-70101-28-9C18H18O3
- (3S,5R,6S,7R)-18-Methyl-4-oxapentacyclo[9.7.0.02,8.03,5.012,16]octadeca-1(11),2(8),9,12(16),17-pentaene-6,7-diol145679-85-2C18H18O3
- 5-Oxo-5-phenylpentan-2-yl benzoate62973-34-6C18H18O3
- 9-(4-Hydroxybutyl)-9H-fluorene-9-carboxylic acid1919883-49-0C18H18O3
- tert-Butyl 9-hydroxy-9H-fluorene-9-carboxylate87700-57-0C18H18O3
- 2-Acetyl-4,6-dimethylphenyl 2-methylbenzoate88952-22-1C18H18O3
- 2-Acetyl-4,6-dimethylphenyl 4-methylbenzoate88952-23-2C18H18O3
- 2-Acetyl-4,5-dimethylphenyl 2-methylbenzoate88952-27-6C18H18O3
- 2-Acetyl-4,5-dimethylphenyl 4-methylbenzoate88952-28-7C18H18O3
- 2-Oxo-1,4-diphenylbutyl acetate89249-27-4C18H18O3
- 4-(3-Oxo-5-phenylpentyl)benzoic acid111991-27-6C18H18O3
- 5-Benzyl-2,2-dimethyl-5-phenyl-1,3-dioxolan-4-one136962-24-8C18H18O3
- {2-[4-(Propan-2-yl)benzoyl]phenyl}acetic acid61561-57-7C18H18O3
- 3-(4-(Benzyloxy)-3,5-dimethylphenyl)acrylic acid773129-38-7C18H18O3
- 2-(m-Tolyl)acetic anhydride40608-03-5C18H18O3
- 2-(p-Tolyl)acetic anhydride63075-59-2C18H18O3
- 3-(Spiro[cyclopenta[a]naphthalene-7,2'-[1,3]dioxolan]-6-yl)propan-1-ol6049-68-9C18H18O3
- 4-Formylbenzenebutanoic acid phenylmethyl ester1370290-50-8C18H18O3
- Ethyl 2-(9H-fluoren-2-yl)-2-hydroxypropanoate42914-21-6C18H18O3
- Methyl 2-(benzyloxy)-3-(prop-1-en-1-yl)benzoate88466-26-6C18H18O3
- 3,4-Bis(4-hydroxyphenyl)hex-3-en-2-one89595-87-9C18H18O3
- Formic acid--4-(4-methylphenyl)-4-phenylbuta-1,3-dien-1-ol (1/1)91473-07-3C18H18O3
- Ethyl 4-hydroxy-3,4-diphenylbut-2-enoate93098-02-3C18H18O3
- 4-Oxo-2,4-diphenylbutyl acetate183670-28-2C18H18O3
- (1S)-1,3-Diphenylprop-2-en-1-yl ethyl carbonate204578-88-1C18H18O3
- 3,3-Dimethyl-2,4-bis[(2H-pyran-2-ylidene)methyl]cyclobutan-1-one398490-97-6C18H18O3
- Benzoic acid--2-methyl-4-phenylbut-3-yn-2-ol (1/1)41930-23-8C18H18O3
- Methyl 4-(3-oxo-2-phenylbutyl)benzoate54636-00-9C18H18O3
- 3-(4-Hydroxyphenyl)propyl 3-phenylprop-2-enoate63238-65-3C18H18O3
- 8,9-Diphenyl-2,3,5,6-tetrahydro-1,4,7-trioxonine62698-60-6C18H18O3
- Methyl 4-(2,4,5-trimethylbenzoyl)benzoate649756-99-0C18H18O3
- [2-(4-Phenylbutanoyl)phenyl]acetic acid64262-36-8C18H18O3
- 4-(4-tert-Butylbenzoyl)benzoic acid62248-54-8C18H18O3
- 2-Methyl-6-(2-methylpropoxy)-9H-xanthen-9-one88086-73-1C18H18O3
- {2-[(But-3-en-1-yl)oxy]phenyl}(2-methoxyphenyl)methanone922192-89-0C18H18O3
- 3-[(3-Phenoxyphenyl)methyl]pentane-2,4-dione90137-64-7C18H18O3
- 3-[(4-Phenoxyphenyl)methyl]pentane-2,4-dione90137-60-3C18H18O3
- 8-(Benzyloxy)-1,2,3,4-tetrahydronaphthalene-2-carboxylic acid1823981-82-3C18H18O3
- 4-([1,1'-Biphenyl]-4-yl)tetrahydro-2H-pyran-4-carboxylic acid1226331-76-5C18H18O3
- 2-(4'-(tert-Butyl)-[1,1'-biphenyl]-4-yl)-2-oxoacetic acid1282344-63-1C18H18O3
- 4,4-Bis(4-methoxyphenyl)but-3-en-2-one285560-29-4C18H18O3
- MappiodoininA2158272-33-2C18H18O3
- Methyl 2-(4-(benzyloxy)-3-vinylphenyl)acetate3078375-81-9C18H18O3
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 3-Buten-2-one, 4-[4-methoxy-3-(phenylmethoxy)phenyl]-, 3-[4-(Phenylmethoxy)phenyl]-2,4-pentanedione, 2-Methyl-2-[4-(1-phenylethenyl)phenoxy]propanoic 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.