Molecular formula
C20H18O5
198 compounds have this formula on CompoundList.
- Molar mass
- 338.36g/mol
- Monoisotopic mass
- 338.1154Da
- Atoms
- 43
- Elements
- 3
- Rings plus double bonds
- 12
The formula C20H18O5 describes a molecule made of 20 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 × 2071.00%12.011 × 20 = 240.220 g/mol
- H Hydrogen × 185.36%1.008 × 18 = 18.144 g/mol
- O Oxygen × 523.64%15.999 × 5 = 79.995 g/mol
Look up another formula
Compounds with the formula C20H18O5
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 198 of 198 compounds
Isopropyl 5-(benzoyloxy)-2-methylbenzofuran-3-carboxylate
CAS 303057-00-3C20H18O5
Isopropyl 2-((2-oxo-3-phenyl-2H-chromen-7-yl)oxy)acetate
CAS 869079-80-1C20H18O5
(7-Methyl-2-oxo-4-phenyl-2H-chromen-5-yloxy)-acetic acid ethyl ester
CAS 307548-14-7C20H18O5
(5-Methoxy-1-benzofuran-2-yl)(5-methoxy-2-methyl-1-benzofuran-3-yl)methanol
CAS 132993-83-0C20H18O5
Ethyl 2-methyl-5-(2-oxo-2-phenylethoxy)-1-benzofuran-3-carboxylate
CAS 5010-45-7C20H18O5
(E)-Methyl 3-oxo-2-(2-propoxybenzylidene)-2,3-dihydrobenzofuran-5-carboxylate
CAS 71620-37-6C20H18O5
3-(3,4-Dihydro-2H-1,5-benzodioxepin-7-yl)-7-methoxy-2-methyl-4H-chromen-4-one
CAS 170511-47-4C20H18O5
(Z)-2-(4-Methoxybenzylidene)-7-methyl-6-(2-oxopropoxy)benzofuran-3(2H)-one
CAS 859666-17-4C20H18O5
(Z)-Methyl 2-((2-(2-methylbenzylidene)-3-oxo-2,3-dihydrobenzofuran-6-yl)oxy)propanoate
CAS 620546-36-3C20H18O5
4-Methyl-2-oxo-2H-chromen-7-yl 2-(3,4-dimethylphenoxy)acetate
CAS 304673-20-9C20H18O5
Naphthalen-1-yl 3,4,5-trimethoxybenzoate
CAS 457923-29-4C20H18O5
(Z)-2-(4-Methoxybenzylidene)-3-oxo-2,3-dihydrobenzofuran-6-yl isobutyrate
CAS 858757-69-4C20H18O5
(Z)-Isopropyl 2-((2-benzylidene-3-oxo-2,3-dihydrobenzofuran-6-yl)oxy)acetate
CAS 858766-20-8C20H18O5
7-Hydroxy-2,8-dimethyl-3-(7-methyl-2,3-dihydro-1,4-benzodioxin-6-yl)chromen-4-one
CAS 315232-76-9C20H18O5
(Z)-Ethyl 2-((2-benzylidene-3-oxo-2,3-dihydrobenzofuran-6-yl)oxy)propanoate
CAS 623123-04-6C20H18O5
(Z)-Methyl 2-((2-(3-methylbenzylidene)-3-oxo-2,3-dihydrobenzofuran-6-yl)oxy)propanoate
CAS 620546-35-2C20H18O5
(Z)-Methyl 2-((2-(4-methylbenzylidene)-3-oxo-2,3-dihydrobenzofuran-6-yl)oxy)propanoate
CAS 623122-82-7C20H18O5
(Z)-2-(2-Methoxybenzylidene)-3-oxo-2,3-dihydrobenzofuran-6-yl isobutyrate
CAS 858769-71-8C20H18O5
(Z)-2-(3-Methoxybenzylidene)-3-oxo-2,3-dihydrobenzofuran-6-yl isobutyrate
CAS 858766-72-0C20H18O5
(2Z)-2-(2-Ethoxybenzylidene)-6-(2-oxopropoxy)-1-benzofuran-3(2H)-one
CAS 879807-32-6C20H18O5
(Z)-2-(Furan-2-ylmethylene)-3-oxo-2,3-dihydrobenzofuran-6-yl cyclohexanecarboxylate
CAS 622791-23-5C20H18O5
(Z)-Ethyl 2-((2-(2-methylbenzylidene)-3-oxo-2,3-dihydrobenzofuran-6-yl)oxy)acetate
CAS 620547-77-5C20H18O5
(Z)-2-(4-Ethoxybenzylidene)-6-(2-oxopropoxy)benzofuran-3(2H)-one
CAS 879807-27-9C20H18O5
(Z)-Ethyl 2-((2-(3-methylbenzylidene)-3-oxo-2,3-dihydrobenzofuran-6-yl)oxy)acetate
CAS 620547-76-4C20H18O5
- (Z)-Ethyl 2-((2-(4-methylbenzylidene)-3-oxo-2,3-dihydrobenzofuran-6-yl)oxy)acetate623117-52-2C20H18O5
- alpha-Isowighteone65388-03-6C20H18O5
- Phenyl 5-[(4-ethoxyphenoxy)methyl]furan-2-carboxylate438466-94-5C20H18O5
- [2-(1-Benzofuran-2-yl)-2-oxoethyl] 3-(3-methylphenoxy)propanoate6602-57-9C20H18O5
- [(4-Ethyl-8-methyl-2-oxo-2H-chromen-7-yl)oxy](phenyl)acetic acid500204-09-1C20H18O5
- 8-Methoxy-3-(2-oxocyclohexyl)oxybenzo[c]chromen-6-one670242-80-5C20H18O5
- 5-{[4-(Benzyloxy)phenyl]methylene}-2,2-dimethyl-1,3-dioxane-4,6-dione477863-06-2C20H18O5
- 1 suppliersGuaiacum blue10039-58-4C20H18O5
- 4-Methyl-2-oxo-2H-chromen-7-yl 2-(4-ethylphenoxy)acetate304673-18-5C20H18O5
- 4-(4-Methoxyphenyl)-8-methyl-7-(2-oxopropoxy)-2H-chromen-2-one376383-68-5C20H18O5
- Ethyl 4-{[(4-methyl-2-oxo-2H-chromen-7-yl)oxy]methyl}benzoate667432-54-4C20H18O5
- 4-Oxo-3-(4-propylphenoxy)-4H-chromen-7-yl acetate201284-85-7C20H18O5
- 2-(3-Methoxy-4-oxo-2-phenyl-4H-1-benzopyran-6-yl)butanoic acid173469-87-9C20H18O5
- Phenyl[(3,4,8-trimethyl-2-oxo-2H-chromen-7-yl)oxy]acetic acid500204-36-4C20H18O5
- 3-(6,7-Dimethoxy-3,4-dihydro-1H-isochromen-1-yl)-4H-chromen-4-one893774-81-7C20H18O5
- (Z)-2-(4-Ethoxybenzylidene)-3-oxo-2,3-dihydrobenzofuran-6-yl propionate622823-30-7C20H18O5
- 6alpha-Hydroxyphaseolin63504-07-4C20H18O5
- Dugesin C1403505-97-4C20H18O5
- 5-Hydroxy-8-(4-hydroxyphenyl)-2,2-dimethyl-3,4-dihydro-2H,6H-pyrano[3,2-g]chromen-6-one76288-44-3C20H18O5
- 8-Hydroxy-6,11-dimethoxy-7,8,9,10-tetrahydrotetracene-5,12-dione58977-07-4C20H18O5
- Ethyl 7-[(4-methylphenyl)methoxy]-2-oxochromene-3-carboxylate685861-48-7C20H18O5
- Methyl 4-{[(3,4-dimethyl-2-oxo-2H-chromen-7-yl)oxy]methyl}benzoate374759-65-6C20H18O5
- 4-Ethyl-8-methyl-2-oxo-2H-chromen-7-yl 3-methoxybenzoate670244-93-6C20H18O5
- Methyl [7-(benzyloxy)-4-methyl-2-oxo-2H-chromen-3-yl]acetate670245-31-5C20H18O5
- 3-[7-(Benzyloxy)-4-methyl-2-oxo-2H-chromen-3-yl]propanoic acid887691-68-1C20H18O5
- {4-Methyl-7-[(4-methylbenzyl)oxy]-2-oxo-2H-chromen-3-yl}acetic acid858751-26-5C20H18O5
- {4-Methyl-7-[(2-methylbenzyl)oxy]-2-oxo-2H-chromen-3-yl}acetic acid858752-00-8C20H18O5
- {4-Methyl-7-[(3-methylbenzyl)oxy]-2-oxo-2H-chromen-3-yl}acetic acid858753-09-0C20H18O5
- Methyl 2-{2-[(4-ethylphenyl)methylene]-3-oxobenzo[3,4-b]furan-6-yloxy}acetate620547-55-9C20H18O5
- (2S,3S)-2,3-Bis(benzoyloxymethyl)cyclobutanone132294-16-7C20H18O5
- Methyl 2-[(3-benzyl-4-methyl-2-oxo-2H-chromen-7-yl)oxy]acetate428833-37-8C20H18O5
- 4-Ethyl-7-[2-(4-methoxyphenyl)-2-oxoethoxy]-2H-chromen-2-one405916-58-7C20H18O5
- 4-{[(3,4,8-Trimethyl-2-oxo-2H-chromen-7-yl)oxy]methyl}benzoic acid370584-43-3C20H18O5
- 4-Ethyl-7-[2-(3-methoxyphenyl)-2-oxoethoxy]-2H-chromen-2-one670245-81-5C20H18O5
- 5-[2-(3-Methoxyphenyl)-2-oxoethoxy]-4,7-dimethyl-2H-chromen-2-one836663-14-0C20H18O5
- 7-[2-(3-Methoxyphenyl)-2-oxoethoxy]-4,8-dimethyl-2H-chromen-2-one838385-29-8C20H18O5
- Methyl 4-{[(4,7-dimethyl-2-oxo-2H-chromen-5-yl)oxy]methyl}benzoate694467-96-4C20H18O5
- (2-Oxochromen-4-yl) 4-butoxybenzoate858742-27-5C20H18O5
- D-ribo-Hex-1-enitol, 1,5-anhydro-2-deoxy-4,6-O-[(R)-phenylmethylene]-, 3-benzoate77481-85-7C20H18O5
- 2-Naphthalenecarboxylic acid, 4,7-dimethoxy-6-(phenylmethoxy)-94550-04-6C20H18O5
- 2',3'-Dihydro-5,7-dihydroxy-2',2'-dimethyl-3,6'-bi(4H-1-benzopyran)-4-one68436-48-6C20H18O5
- 1,4,5-Trimethoxy-2-(prop-2-en-1-yl)anthracene-9,10-dione50457-11-9C20H18O5
- 4-Ethyl-8-methyl-2-oxo-2H-chromen-7-yl 4-methoxybenzoate670242-92-9C20H18O5
- 7-[2-(4-Methoxyphenyl)-2-oxoethoxy]-4,8-dimethyl-2H-chromen-2-one479351-69-4C20H18O5
- (2-Oxochromen-4-yl) 3-butoxybenzoate692275-90-4C20H18O5
- 1-[5-Methoxy-3-(4-methoxybenzoyl)-1-benzofuran-2-yl]propan-2-one6444-83-3C20H18O5
- Mallotus A116107-14-3C20H18O5
- 4-(2-Propen-1-yloxy)phenyl 4-[(2-methyl-1-oxo-2-propen-1-yl)oxy]benzoate128422-77-5C20H18O5
- 8-Ethyl-6,8,11-trihydroxy-7,8,9,10-tetrahydrotetracene-5,12-dione75963-80-3C20H18O5
- 1-((3-(3,4-Dihydro-2H-benzo[b][1,4]dioxepin-7-yl)benzofuran-5-yl)oxy)propan-2-one1574483-13-8C20H18O5
- 1a-Hydroxyphaseolone53549-01-2C20H18O5
- Dimethyl 2-(4-hydroxyhexa-2,5-diyn-1-yl)-2-(3-phenylprop-2-yn-1-yl)malonate2044202-42-6C20H18O5
- 3,4,8-Trimethyl-2-oxo-2H-chromen-7-yl 4-methoxybenzoate670242-57-6C20H18O5
- 2-Oxo-4-propyl-2H-chromen-7-yl 4-methoxybenzoate670242-94-1C20H18O5
- 3,4,8-Trimethyl-2-oxo-2H-chromen-7-yl 3-methoxybenzoate670244-72-1C20H18O5
- 2-Oxo-4-propyl-2H-chromen-7-yl 3-methoxybenzoate670244-67-4C20H18O5
- 2-Propenoic acid, 3-(2-methoxy-5-(3-(4-methoxyphenyl)-1-oxo-2-propenyl)phenyl)-, (E,E)-82885-77-6C20H18O5
- 3-(3-Ethoxy-4-hydroxybenzylidene)-5-(4-methoxyphenyl)furan-2(3H)-one6621-91-6C20H18O5
- 3-Phenyl-1-(4,6,7-trimethoxy-1-benzofuran-5-yl)prop-2-en-1-one102078-28-4C20H18O5
- 3-Ethyl 6-methyl-4-phenyl-2H-1-benzopyran-2,3-dicarboxylate28564-15-0C20H18O5
- 1-Hydroxy-8-methoxy-3-methyl-2-(3-oxobutyl)anthracene-9,10-dione84340-89-6C20H18O5
- 2-Oxo-2H-1-benzopyran-7-yl 4-butoxybenzoate88773-47-1C20H18O5
- 5-Methoxy-1,3-bis[(prop-2-en-1-yl)oxy]-9H-xanthen-9-one106092-48-2C20H18O5
- 3,9,11-Trimethoxy-5,6-dihydro-12H-benzo[a]xanthen-12-one195259-87-1C20H18O5
- 3,4-Bis(benzyloxy)-5-(2-hydroxyethylidene)furan-2(5H)-one185675-57-4C20H18O5
- 2-Phenyl-6-(2,4,5-trimethoxyphenyl)-4H-pyran-4-one62407-01-6C20H18O5
- 5,5'-[Oxydi(4,1-phenylene)]di(oxolan-2-one)62050-97-9C20H18O5
- (1S,2S)-3-Oxocyclohexane-1,2-diyl dibenzoate61140-49-6C20H18O5
- (1R,2S)-3-Oxocyclohexane-1,2-diyl dibenzoate61140-48-5C20H18O5
- 7,12-Dimethoxy-2,2-dimethyl-2H,6H-pyrano[3,2-b]xanthen-6-one88147-98-2C20H18O5
- Acetic acid--2,4-dimethoxyfluoranthen-8-ol (1/1)88070-14-8C20H18O5
- [(1R,2R)-2-(Benzoyloxymethyl)-3-oxocyclobutyl]methyl benzoate126261-72-1C20H18O5
- ((1R)-3-Oxocyclobutane-1,2-diyl)bis(methylene) dibenzoate1276016-22-8C20H18O5
- 1,6,6-Trimethyl-10,11-dioxo-8,9-dihydro-7H-naphtho[1,2-g][1]benzofuran-2-carboxylic acid937261-96-6C20H18O5
Frequently asked questions
What is the molar mass of C20H18O5?
The molar mass of C20H18O5 is 338.36 g/mol, calculated from standard atomic weights for 20 carbon atoms, 18 hydrogen atoms and 5 oxygen atoms. The monoisotopic mass is 338.1154 Da.
How many compounds have the formula C20H18O5?
CompoundList lists 198 compounds with the molecular formula C20H18O5, including Isopropyl 5-(benzoyloxy)-2-methylbenzofuran-3-carboxylate, Isopropyl 2-((2-oxo-3-phenyl-2H-chromen-7-yl)oxy)acetate, (7-Methyl-2-oxo-4-phenyl-2H-chromen-5-yloxy)-acetic acid ethyl ester. 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 C20H18O5?
C20H18O5 has a degree of unsaturation of 12. 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.