Molecular formula
C18H18O5
187 compounds have this formula on CompoundList.
- Molar mass
- 314.34g/mol
- Monoisotopic mass
- 314.1154Da
- Atoms
- 41
- Elements
- 3
- Rings plus double bonds
- 10
The formula C18H18O5 describes a molecule made of 18 carbon atoms, 18 hydrogen atoms and 5 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 × 1868.78%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 185.77%1.008 × 18 = 18.144 g/mol
- O Oxygen × 525.45%15.999 × 5 = 79.995 g/mol
Look up another formula
Compounds with the formula C18H18O5
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 187 of 187 compounds
5,6,7-Trimethoxy-4-phenyl-3,4-dihydro-2H-1-benzopyran-2-one
CAS 89329-23-7C18H18O5
Diethyl 4,4'-oxydibenzoate
CAS 3096-86-4C18H18O5
2-Ethoxybenzoic anhydride
CAS 19207-90-0C18H18O5
![2-[4-Hydroxyphenyl]-3-(3,5-dimethoxyphenyl)acrylic acid methyl ester chemical structure, C18H18O5, CAS 380881-27-6](/s/ORLWDFQMHQUCRE-UHFFFAOYSA-N.svg)
2-[4-Hydroxyphenyl]-3-(3,5-dimethoxyphenyl)acrylic acid methyl ester
CAS 380881-27-6C18H18O5
1-(3,4-Dimethoxyphenyl)-2-(2-methoxyphenoxy)prop-2-en-1-one
CAS 62080-95-9C18H18O5
2,3-Dihydro-3-(4-methoxybenzyl)-5,7-dihydroxy-6-methyl-4H-1-benzopyran-4-one
CAS 88700-33-8C18H18O5
3-Methoxyphenylacetic anhydride
CAS 63075-61-6C18H18O5
![5-(3-(Hydroxymethyl)phenyl)-7-methoxy-2,2-dimethyl-4H-benzo[d][1,3]dioxin-4-one chemical structure, C18H18O5, CAS 1606132-26-6](/s/FAIDLZVWPMWERE-UHFFFAOYSA-N.svg)
5-(3-(Hydroxymethyl)phenyl)-7-methoxy-2,2-dimethyl-4H-benzo[d][1,3]dioxin-4-one
CAS 1606132-26-6C18H18O5
![10-Methoxy-2,2-dimethyl-8,9-dihydrocyclopenta[c]pyrano[2,3-h]chromen-4,6-dione chemical structure, C18H18O5, CAS 855779-23-6](/s/NJHNAYMJAKUUTD-UHFFFAOYSA-N.svg)
10-Methoxy-2,2-dimethyl-8,9-dihydrocyclopenta[c]pyrano[2,3-h]chromen-4,6-dione
CAS 855779-23-6C18H18O5
![4-[(4-Acetyl-2-methoxyphenyl)methoxy]-3-methoxybenzaldehyde chemical structure, C18H18O5, CAS 721413-50-9](/s/ABCLZLSKUHVAQF-UHFFFAOYSA-N.svg)
4-[(4-Acetyl-2-methoxyphenyl)methoxy]-3-methoxybenzaldehyde
CAS 721413-50-9C18H18O5
Ethanone, 2-(acetyloxy)-1,2-bis(4-methoxyphenyl)-
CAS 1678-44-0C18H18O5
1-(1,3-Benzodioxol-5-yl)-6,7-dimethoxy-3,4-dihydro-1H-isochromene
CAS 899369-89-2C18H18O5
2-Propen-1-one, 1-(4-ethoxy-2-hydroxy-6-methoxyphenyl)-3-(4-hydroxyphenyl)-
CAS 86277-69-2C18H18O5
![Methyl [4-(4-methoxybenzoyl)-2-methylphenoxy]acetate chemical structure, C18H18O5, CAS 115057-32-4](/s/HJYXURCPMAHFAD-UHFFFAOYSA-N.svg)
Methyl [4-(4-methoxybenzoyl)-2-methylphenoxy]acetate
CAS 115057-32-4C18H18O5
![2-[[4-[4-(Oxiran-2-ylmethoxy)phenoxy]phenoxy]methyl]oxirane chemical structure, C18H18O5, CAS 19389-73-2](/s/OUMVQDFNHGJHOM-UHFFFAOYSA-N.svg)
2-[[4-[4-(Oxiran-2-ylmethoxy)phenoxy]phenoxy]methyl]oxirane
CAS 19389-73-2C18H18O5
Ethyl (2'-Hydroxy-4'-benzyloxybenzoyl)acetate
CAS 1076198-06-5C18H18O5
2'-Hydroxy-3,3',4'-trimethoxychalcone
CAS 1228592-83-3C18H18O5
Methyl 4-(2-(2,4-dimethoxyphenyl)-2-oxoethyl)benzoate
CAS 1324010-44-7C18H18O5
Di(4-carboxymethyl)benzyl ether
CAS 1951439-96-5C18H18O5
2,5-Cyclohexadiene-1,4-dione, 2-(4-((1S)-1-(acetyloxy)-4-methyl-3-pentenyl)-2-furanyl)-
CAS 80348-64-7C18H18O5
![3-[(4-Acetyl-2-methoxyphenoxy)methyl]-4-methoxybenzaldehyde chemical structure, C18H18O5, CAS 893732-54-2](/s/AQECLKWCZSRNED-UHFFFAOYSA-N.svg)
3-[(4-Acetyl-2-methoxyphenoxy)methyl]-4-methoxybenzaldehyde
CAS 893732-54-2C18H18O5
Acetic acid, (4-methylphenoxy)-, 2-(4-methoxyphenyl)-2-oxoethyl ester
CAS 586370-68-5C18H18O5
(E)-1-(6-Hydroxy-2,3-dimethoxyphenyl)-3-(4-methoxyphenyl)prop-2-en-1-one
CAS 1236-62-0C18H18O5
Benzenemethanol, alpha-(2-(1,3-benzodioxol-5-yl)ethenyl)-2,5-dimethoxy-
CAS 58344-94-8C18H18O5
- 2-(3,4-Dimethoxyphenyl)-7-methoxy-2,3-dihydro-4H-chromen-4-one10493-09-1C18H18O5
- Methyl 3-(4-formylphenoxy)-4-methoxybenzenepropanoate129150-62-5C18H18O5
- 8-Methoxy-2-(5-oxoheptanoyl)naphthalene-1,4-dione89101-84-8C18H18O5
- 2,3,6,7-Tetramethoxy-9(10H)-anthracenone128080-46-6C18H18O5
- (5R,6R)-5,6-Bis(4-methoxyphenyl)-1,4-dioxan-2-one886986-68-1C18H18O5
- Ethyl 2-(4-(benzyloxy)-2-formylphenoxy)acetate277319-25-2C18H18O5
- 4-Methoxyphenyl 4-(butanoyloxy)benzoate38454-19-2C18H18O5
- 4-(Methoxycarbonyl)phenyl 4-propoxybenzoate90233-53-7C18H18O5
- Benzoic acid 2 [(benzoyloxy)methyl]-6-methoxy ethyl ester1171923-06-0C18H18O5
- Methanone, (2,4-dimethoxyphenyl)(3-(4-methoxyphenyl)oxiranyl)-40321-75-3C18H18O5
- 6-(3-Ethoxycarbonyl-2-oxo-propyl)-naphthalene-1-carboxylic acid methyl ester950643-05-7C18H18O5
- Ethyl 2-(4-methoxybenzoyl)-3-(5-methylfuran-2-yl)acrylate1290181-66-6C18H18O5
- 1,3,6,8-Tetramethoxyanthracen-9(10H)-one172227-01-9C18H18O5
- 5-(Benzyloxy)-7-methoxy-2,2-dimethyl-4H-benzo[d][1,3]dioxin-4-one1476847-49-0C18H18O5
- 4-[5-(3-Hydroxypropyl)-7-methoxy-2-benzofuranyl]-1,2-benzenediol1802642-17-6C18H18O5
- Ethyl 3-methoxy-4-[(3-methylbenzoyl)oxy]benzoate723291-14-3C18H18O5
- Ethyl 3-methoxy-4-[(2-methylbenzoyl)oxy]benzoate723291-20-1C18H18O5
- 2-Anthracenecarboxylicacid, 5,6,7,8-tetrahydro-3,9-dihydroxy-1,7,10-trimethyl-8-oxo-(9CI)162857-54-7C18H18O5
- Benzoic acid, 2,4-dimethoxy-6-(2-oxo-2-phenylethyl)-, methyl ester675837-02-2C18H18O5
- Methanone, [3-(3,4-dimethoxyphenyl)oxiranyl](4-methoxyphenyl)-861881-87-0C18H18O5
- Propanoic acid, 3-(4-methylphenoxy)-, 4-formyl-2-methoxyphenyl ester844634-14-6C18H18O5
- 2-[3-(4-Methoxybenzoyl)phenoxy]-2-methylpropanoic acid62809-80-7C18H18O5
- Methyl 3-(((4-(methoxycarbonyl)benzyl)oxy)methyl)benzoate1250936-67-4C18H18O5
- Ethyl 2-acetoxy-3-(benzyloxy)benzoate1800465-78-4C18H18O5
- 1 suppliers5-[(3,4-Dimethoxyphenyl)ethynyl]-2,3-dimethoxyphenol185698-61-7C18H18O5
- Ethyl 2-(4-(benzyloxy)-3-methoxyphenyl)-2-oxoacetate1451148-39-2C18H18O5
- Methyl 3-acetyl-6-(benzyloxy)-2-methoxybenzoate1822826-97-0C18H18O5
- Methyl 2-acetyl-5-(benzyloxy)-4-methoxybenzoate1823312-01-1C18H18O5
- Diethyl 4-phenoxyphthalate38791-58-1C18H18O5
- (2S)-5-Hydroxy-7-methoxy-2-(4-methoxyphenyl)-6-methyl-2,3-dihydro-4H-1-benzopyran-4-one124858-40-8C18H18O5
- 5-(5-Hydroxy-2-methylphenyl)-7-methoxy-2,2-dimethyl-4H-1,3-benzodioxin-4-one1196985-66-6C18H18O5
- Methyl 2,4-dimethoxy-I(2)-oxo-I+/--phenylbenzenepropanoate1186509-68-1C18H18O5
- 1,4-Diethyl 2-phenoxy-1,4-benzenedicarboxylate38791-64-9C18H18O5
- I+/--[(3-Ethoxy-4-hydroxyphenyl)methylene]-2-methoxybenzeneacetic acid87751-74-4C18H18O5
- I+/--[(3,4-Dimethoxyphenyl)methylene]-3-methoxybenzeneacetic acid681811-81-4C18H18O5
- Methyl 3-(2-oxiranylmethoxy)-5-(phenylmethoxy)benzoate54915-32-1C18H18O5
- Methyl 3-[4-(Benzyloxy)-3-methoxyphenyl]-2-oxopropanoate1374004-90-6C18H18O5
- 2,4-Dimethoxy-5-(3-phenylpropanoyl)benzoic acid62435-15-8C18H18O5
- 2-Methoxy-1,3-bis(4-methoxyphenyl)propane-1,3-dione61821-26-9C18H18O5
- 2-(4-(2-(Carboxymethyl)-4-methylphenoxy)phenyl)propanoic acid78490-40-1C18H18O5
- 3-(2-Hydroxy-4-methoxyphenyl)-3-oxo-2-phenylpropyl acetate92714-95-9C18H18O5
- (3,4-Dimethoxyphenyl)[3-(4-methoxyphenyl)oxiran-2-yl]methanone91597-30-7C18H18O5
- Methyl (E)-3-(3,5-dimethoxyphenyl)-2-(4-hydroxyphenyl)acrylate606932-78-9C18H18O5
- 4-(5-(1,3-Dioxan-2-yl)-2-methoxyphenoxy)benzaldehyde1186304-19-7C18H18O5
- 3,4,5-Trimethoxyphenyl 3-phenylprop-2-enoate89329-20-4C18H18O5
- 2-Hydroxy-3-[2-(3-phenylpropanoyl)phenoxy]propanoic acid91401-74-0C18H18O5
- 4-Methoxyphenyl 4-[2-(oxiran-2-yl)ethoxy]benzoate144447-09-6C18H18O5
- 4-{[(2R)-1-Ethoxy-1-oxopropan-2-yl]oxy}phenyl benzoate168281-06-9C18H18O5
- 5,9-Dimethoxy-3,3,8-trimethyl-3H-naphtho[2,1-b]pyran-7,10-dione66267-78-5C18H18O5
- Benzyl methyl (benzyloxy)propanedioate62527-79-1C18H18O5
- 3-Hydroxy-2-methoxy-1,3-bis(4-methoxyphenyl)prop-2-en-1-one61821-27-0C18H18O5
- 8-Methoxy-3-(3-methylbut-2-en-1-yl)-1,4-dioxo-1,4-dihydronaphthalen-2-yl acetate61266-40-8C18H18O5
- 2,4-Dimethoxy-2-[(4-methoxyphenyl)methyl]-1-benzofuran-3(2H)-one88092-63-1C18H18O5
- (R)-2-((S)-2,2-DiMethyl-5-oxo-1,3-dioxolan-4-yl)-3-(naphthalen-2-yl)propanoic acid198568-07-9C18H18O5
- 5-Acetyl-2-(3-methoxy-benzyloxy)-benzoic acid methyl ester1416339-23-5C18H18O5
- 3-Ethoxy-4-methoxyphenyl (6-methyl-1,3-benzodioxol-5-yl) ketone52806-41-4C18H18O5
- Ethyl (2'-Hydroxy-3'-benzyloxybenzoyl)acetate1796932-84-7C18H18O5
- 3,10,11-Trimethoxy-6H-dibenzo[b,d]oxocin-7(8H)-one1627113-60-3C18H18O5
- 2-Oxo-2-phenylethyl 3-[4-(hydroxymethyl)phenoxy]propanoate864877-00-9C18H18O5
- 2-[[4-(2-Ethoxy-2-oxoethyl)phenoxy]methyl]benzoic acid55690-15-8C18H18O5
- 2'-Ethoxy-6-(ethoxycarbonyl)-[1,1'-biphenyl]-2-carboxylic acid3078383-92-0C18H18O5
- 3'-Ethoxy-6-(ethoxycarbonyl)-[1,1'-biphenyl]-2-carboxylic acid3078344-91-6C18H18O5
- 3-(4-(3-(1,3-Dioxolan-2-yl)phenoxy)phenyl)propanoic acid203510-51-4C18H18O5
Frequently asked questions
What is the molar mass of C18H18O5?
The molar mass of C18H18O5 is 314.34 g/mol, calculated from standard atomic weights for 18 carbon atoms, 18 hydrogen atoms and 5 oxygen atoms. The monoisotopic mass is 314.1154 Da.
How many compounds have the formula C18H18O5?
CompoundList lists 187 compounds with the molecular formula C18H18O5, including 5,6,7-Trimethoxy-4-phenyl-3,4-dihydro-2H-1-benzopyran-2-one, Diethyl 4,4'-oxydibenzoate, 2-Ethoxybenzoic anhydride. 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 C18H18O5?
C18H18O5 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.