Molecular formula
C18H16O5
225 compounds have this formula on CompoundList.
- Molar mass
- 312.32g/mol
- Monoisotopic mass
- 312.0998Da
- Atoms
- 39
- Elements
- 3
- Rings plus double bonds
- 11
The formula C18H16O5 describes a molecule made of 18 carbon atoms, 16 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 × 1869.22%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 165.16%1.008 × 16 = 16.128 g/mol
- O Oxygen × 525.61%15.999 × 5 = 79.995 g/mol
Look up another formula
Compounds with the formula C18H16O5
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 200 of 225 compounds
3-Hydroxy-2-(4-hydroxy-3-methoxyphenyl)-6,7-dimethylchromen-4-one
CAS 1353223-95-6C18H16O5
SARS-CoV-2-IN-44
CAS 1311271-71-2C18H16O5
Pancixanthone B
CAS 174232-29-2C18H16O5
![5,7-Dihydroxy-2,3,3-trimethyl-2H,3H,11H-furo[2,3-a]xanthen-11-one chemical structure, C18H16O5, CAS 175617-27-3](/s/WJPITGSTUAHZBK-UHFFFAOYSA-N.svg)
5,7-Dihydroxy-2,3,3-trimethyl-2H,3H,11H-furo[2,3-a]xanthen-11-one
CAS 175617-27-3C18H16O5
Ophiopogonone B
CAS 75239-60-0C18H16O5
Bryacarpene 5
CAS 55306-18-8C18H16O5
1-(4-(Benzyloxy)-6-hydroxy-7-methoxybenzofuran-5-yl)ethanone
CAS 119104-31-3C18H16O5
3',5,6-Trimethoxyflavone
CAS 17182-55-7C18H16O5
Przewaquinone F
CAS 96839-31-5C18H16O5
Bombamalone B
CAS 953793-04-9C18H16O5
Ethyl 5-hydroxy-2-(2-methoxyphenyl)benzofuran-3-carboxylate
CAS 60946-79-4C18H16O5
1,4,6-Trihydroxy-8-butyl-9,10-anthraquinone
CAS 1644075-01-3C18H16O5
![(E)-3-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-1-(2-hydroxy-4-methoxyphenyl)prop-2-en-1-one chemical structure, C18H16O5, CAS 96755-05-4](/s/VNJIXIJBFWSXDA-QHHAFSJGSA-N.svg)
(E)-3-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-1-(2-hydroxy-4-methoxyphenyl)prop-2-en-1-one
CAS 96755-05-4C18H16O5
(2Z)-2-Benzylidene-4,5,6-trimethoxy-1-benzofuran-3-one
CAS 5453-00-9C18H16O5
7,2',3'-Trimethoxyflavone
CAS 80710-39-0C18H16O5
![Ethyl 3-oxo-8,9,10,11-tetrahydro-[1]benzofuro[3,2-f]chromene-2-carboxylate chemical structure, C18H16O5, CAS 342378-84-1](/s/VNRXEKXQIXAYKT-UHFFFAOYSA-N.svg)
Ethyl 3-oxo-8,9,10,11-tetrahydro-[1]benzofuro[3,2-f]chromene-2-carboxylate
CAS 342378-84-1C18H16O5
![2-[(2,4-Dimethoxyphenyl)methylene]-6-hydroxy-7-methylbenzo[b]furan-3-one chemical structure, C18H16O5, CAS 859133-97-4](/s/IAYCHLWZCYSNRX-PXNMLYILSA-N.svg)
2-[(2,4-Dimethoxyphenyl)methylene]-6-hydroxy-7-methylbenzo[b]furan-3-one
CAS 859133-97-4C18H16O5
3,7,3'-Trimethoxyflavone
CAS 720675-70-7C18H16O5
![Ethyl [(1-methyl-6-oxo-6H-benzo[c]chromen-3-yl)oxy]acetate chemical structure, C18H16O5, CAS 301690-80-2](/s/MUDVZUHASCEVLB-UHFFFAOYSA-N.svg)
Ethyl [(1-methyl-6-oxo-6H-benzo[c]chromen-3-yl)oxy]acetate
CAS 301690-80-2C18H16O5
(Z)-2-(3,4-Dimethoxybenzylidene)-6-hydroxy-7-methylbenzofuran-3(2H)-one
CAS 859662-66-1C18H16O5
(Z)-2-(2,4-Dimethoxybenzylidene)-6-methoxybenzofuran-3(2H)-one
CAS 36685-47-9C18H16O5
(Z)-2-(Furan-2-ylmethylene)-3-oxo-2,3-dihydrobenzofuran-6-yl pivalate
CAS 622359-97-1C18H16O5
4-Oxo-4-(2-oxo-1,2-diphenylethoxy)butanoic acid
CAS 306935-85-3C18H16O5
2,3,6-Trimethoxyphenanthrene-9-carboxylic acid
CAS 30062-39-6C18H16O5
- (Z)-2-(2,5-Dimethoxybenzylidene)-6-methoxybenzofuran-3(2H)-one858760-65-3C18H16O5
- 2-[(4-Ethoxy-3-methoxyphenyl)methylene]-6-hydroxybenzo[b]furan-3-one210361-07-2C18H16O5
- (Z)-6-Ethoxy-2-(4-hydroxy-3-methoxybenzylidene)benzofuran-3(2H)-one859660-79-0C18H16O5
- (2Z)-2-[(3,4-Dimethoxyphenyl)methylidene]-6-hydroxy-4-methyl-1-benzofuran-3-one904516-33-2C18H16O5
- 2-[(2,5-Dimethoxyphenyl)methylene]-6-hydroxy-4-methylbenzo[b]furan-3-one904510-71-0C18H16O5
- (Z)-2-(2,3-Dimethoxybenzylidene)-6-methoxybenzofuran-3(2H)-one620546-90-9C18H16O5
- 2-[(E)-3-(2,5-Dimethoxyphenyl)-3-oxoprop-1-enyl]benzoic acid852538-51-3C18H16O5
- 2-[(2,3-Dimethoxyphenyl)methylene]-6-hydroxy-4-methylbenzo[b]furan-3-one903189-47-9C18H16O5
- 5,7,3'-Trimethoxyflavone103430-01-9C18H16O5
- 3-(2,4-Dimethoxyphenyl)-7-methoxy-4H-1-benzopyran-4-one7678-84-4C18H16O5
- (2E)-1-(3-Hydroxyphenyl)-3-(8-methoxy-2,3-dihydro-1,4-benzodioxin-6-yl)prop-2-en-1-one929451-57-0C18H16O5
- 2-[(3,4-Dimethoxyphenyl)methylene]-4-hydroxy-6-methylbenzo[b]furan-3-one929450-97-5C18H16O5
- 2-[(2,5-Dimethoxyphenyl)methylene]-4-hydroxy-6-methylbenzo[b]furan-3-one929512-86-7C18H16O5
- 2-(2-Benzo[1,3]dioxol-5-yl-vinyl)-6-hydroxy-benzoic acid ethyl ester365543-23-3C18H16O5
- 3-(3,4-Dimethoxyphenyl)-8-methoxy-1H-2-benzopyran-1-one147666-84-0C18H16O5
- 8-Methoxy-4-methyl-3-(2-oxopropoxy)benzo[c]chromen-6-one500203-92-9C18H16O5
- (Z)-2-((5-Methylfuran-2-yl)methylene)-3-oxo-2,3-dihydrobenzofuran-6-yl isobutyrate622359-85-7C18H16O5
- Methyl 2-[(4-methyl-6-oxo-6H-benzo[c]chromen-3-yl)oxy]propanoate307551-46-8C18H16O5
- (2E)-1-(4-Hydroxyphenyl)-3-(8-methoxy-2,3-dihydro-1,4-benzodioxin-6-yl)prop-2-en-1-one929513-44-0C18H16O5
- 2-[(2,3-Dimethoxyphenyl)methylene]-4-hydroxy-6-methylbenzo[b]furan-3-one929427-82-7C18H16O5
- 2-(3,4-Dimethoxyphenyl)-3-hydroxy-8-methyl-4H-chromen-4-one1313738-73-6C18H16O5
- 3,6,3'-Trimethoxyflavone720675-93-4C18H16O5
- (4-Formyl-9-methoxy-5-methylbenzo[f][1]benzofuran-3-yl)methyl acetate62706-47-2C18H16O5
- 3,6,2'-Trimethoxyflavone1006893-22-6C18H16O5
- 1,4,8-Trimethoxy-2-methylanthracene-9,10-dione51837-73-1C18H16O5
- 3,5-Diacetoxy-4'-hydroxy stilbene1246833-37-3C18H16O5
- 10-Hydroxy-5,7-dimethoxy-2,3-dimethyl-1,4-anthracenedione84542-59-6C18H16O5
- 1H-Naphtho[2,1-b]pyran-1-one, 3-acetyl-7,8-dimethoxy-2-methyl-55044-17-2C18H16O5
- Ethyl 5-(acetyloxy)-2-methylnaphtho[1,2-b]furan-3-carboxylate109562-72-3C18H16O5
- Ethanone, 1-[2,4-bis(acetyloxy)phenyl]-2-phenyl-22665-91-4C18H16O5
- 2-(4-Methylphenyl)-2-oxoethyl 2,3-dihydro-1,4-benzodioxine-6-carboxylate503541-33-1C18H16O5
- 9H-Xanthen-9-one, 1,5-dimethoxy-3-(2-propenyloxy)-106092-49-3C18H16O5
- 2-(3,4-Dihydroxyphenyl)-3-hydroxy-6-propyl-4H-chromen-4-one1313738-79-2C18H16O5
- 5-Benzyloxy-6,7-dimethoxycoumarin68691-84-9C18H16O5
- 2-Benzyl-2-phenacylpropanedioic acid6938-58-5C18H16O5
- Ethyl 2-(8-methoxy-1-oxo-2,3-dihydrocyclopenta[a]naphthalen-2-yl)-2-oxoacetate72907-96-1C18H16O5
- (3-Oxo-1,3-diphenylpropyl)propanedioic acid4475-13-2C18H16O5
- 3-Acetyl-5,6-dimethoxy-2-methyl-4H-naphtho[1,2-b]pyran-4-one55044-16-1C18H16O5
- 8-Methyl-2-oxo-4-propyl-2H-chromen-7-yl furan-2-carboxylate446279-65-8C18H16O5
- (5-Acetyl-2-methoxyphenyl)methyl 2-formylbenzoate730968-75-9C18H16O5
- 1 suppliers(±)-Tanshindiol A143167-14-0C18H16O5
- 2-Propen-1-one, 1-(5-acetyl-2,4-dihydroxyphenyl)-3-(4-methoxyphenyl)-108051-26-9C18H16O5
- [2-([1,1'-Biphenyl]-4-yl)-2-oxoethyl](methyl)propanedioic acid88598-78-1C18H16O5
- Medicarpin acetate1891-12-9C18H16O5
- (3R,4R)-3,4-Bis(benzyloxy)dihydrofuran-2,5-dione97506-01-9C18H16O5
- 5,3',4'-Trimethoxyflavone136198-18-0C18H16O5
- 5-Ethoxy-2-(4-methoxyphenyl)-1-benzofuran-3-carboxylic acid929512-97-0C18H16O5
- Tababiphenyl B1668551-19-6C18H16O5
- 3-[(E)-3-(3,4-Dimethoxyphenyl)prop-2-enoyl]-2-hydroxycyclohepta-2,4,6-trien-1-one77633-03-5C18H16O5
- 3-[(E)-3-(2,4-Dimethoxyphenyl)prop-2-enoyl]-2-hydroxycyclohepta-2,4,6-trien-1-one77633-02-4C18H16O5
- Ethyl 2,4-Dioxo-4-(4-phenoxyphenyl)butanoate100281-35-4C18H16O5
- Leridal chalcone177602-75-4C18H16O5
- 5-(Benzhydryloxy)-4,5-dioxopentanoic acid108050-22-2C18H16O5
- Helilandin A70185-50-1C18H16O5
- 5,7-Dihydroxy-3-methoxy-6,8-dimethylflavone79174-96-2C18H16O5
- 3,5-Dihydroxy-7-methoxy-6,8-dimethylflavone97208-73-6C18H16O5
- 2,4-Dimethoxy-5-(3-phenylacryloyl)benzoic acid62435-20-5C18H16O5
- 3-[(2Z)-3-(2,3-Dimethoxyphenyl)prop-2-enoyl]-2-hydroxycyclohepta-2,4,6-trien-1-one77633-01-3C18H16O5
- 1-[2-(4-Hydroxyphenyl)-4,6-dimethoxy-1-benzofuran-3-yl]ethan-1-one919116-99-7C18H16O5
- Methyl 3-(allyloxy)-5-(4-formylphenoxy)benzoate1264836-12-5C18H16O5
- Propanoic acid, 2-((9-oxo-9H-xanthen-1-yl)oxy)-, ethyl ester127731-70-8C18H16O5
- Benzeneacetic acid, 2-((2-oxo-2-phenylethoxy)carbonyl)-, methyl ester104907-35-9C18H16O5
- 4,11-Epoxy-1H-benzo(a)cyclopenta(f)cyclodecen-1-one, 2,3,9,10-tetrahydro-8,9,10-trihydroxy-12-methyl-, (9S-trans)-56348-71-1C18H16O5
- 6H-Benzofuro[3,2-c][1]benzopyran-3-ol, 6a,11a-dihydro-9-methoxy-, 3-acetate, (6aR,11aR)-C18H16O5
- 6-(2,4-Dimethoxyphenyl)-7-methyl-[1,3]dioxolo[4,5-f]benzofuran116310-57-7C18H16O5
- 3-Formyl-4,6-dihydroxy-2-methoxy-5-methylchalcone130278-10-3C18H16O5
- 2-(2,4,6-Trimethoxyphenyl)-1H-indene-1,3(2H)-dione15572-85-7C18H16O5
- 4-[2-(Benzyloxy)-6-methoxyphenyl]-4-hydroxybut-2-ynoic acid61227-31-4C18H16O5
- 7-Butoxy-9-oxo-9H-xanthene-3-carboxylic acid89216-77-3C18H16O5
- (2E)-2-Benzylidene-4,5,6-trimethoxy-1-benzofuran-3-oneC18H16O5
- Phenyl 4-[2-(acryloyloxy)ethoxy]benzoate91986-54-8C18H16O5
- 4,6-Dimethoxy-2-[(4-methoxyphenyl)methylidene]-1-benzofuran-3(2H)-one10493-04-6C18H16O5
- Methyl 3-(7-methoxy-4-oxochroman-2-yl)benzoate2702125-54-8C18H16O5
- {[2-(3-Benzoylphenyl)propanoyl]oxy}acetic acid81577-37-9C18H16O5
- 4-Methoxy-6-oxo-1-(3-oxo-3-phenylprop-1-en-1-yl)cyclohexa-2,4-dien-1-yl acetate75158-61-1C18H16O5
- 1,8-Dimethoxy-3-(methoxymethyl)-9,10-anthracenedione6010-96-4C18H16O5
Frequently asked questions
What is the molar mass of C18H16O5?
The molar mass of C18H16O5 is 312.32 g/mol, calculated from standard atomic weights for 18 carbon atoms, 16 hydrogen atoms and 5 oxygen atoms. The monoisotopic mass is 312.0998 Da.
How many compounds have the formula C18H16O5?
CompoundList lists 225 compounds with the molecular formula C18H16O5, including 3-Hydroxy-2-(4-hydroxy-3-methoxyphenyl)-6,7-dimethylchromen-4-one, SARS-CoV-2-IN-44, Pancixanthone B. 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 C18H16O5?
C18H16O5 has a degree of unsaturation of 11. 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.