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 201 to 225 of 225 compounds

7-Methoxy-3-(6-methoxy-1,3-benzodioxol-5-yl)-2H-1-benzopyran

CAS 3187-60-8C₁₈H₁₆O₅

Combretastatin D1

CAS 117709-78-1C₁₈H₁₆O₅

2-Propen-1-one, 1-(1,3-benzodioxol-5-yl)-3-(3,5-dimethoxyphenyl)-, (E)-

CAS 88775-46-6C₁₈H₁₆O₅

Ethyl 2-(benzyloxy)-5-(oxoacetyl)benzoate

CAS 61698-74-6C₁₈H₁₆O₅

Methyl (1-methoxy-3-methyl-9-oxo-9H-xanthen-4-yl)acetate

CAS 88521-89-5C₁₈H₁₆O₅

[(2-Benzoylphenyl)methyl](methyl)propanedioic acid

CAS 88670-36-4C₁₈H₁₆O₅

Ethyl 7-ethoxy-9-oxo-9H-xanthene-3-carboxylate

CAS 89216-73-9C₁₈H₁₆O₅

Methyl 9-oxo-7-propoxy-9H-xanthene-3-carboxylate

CAS 89216-78-4C₁₈H₁₆O₅

1-Hydroxy-6,8-dimethoxy-2,3-dimethylanthracene-9,10-dione

CAS 194731-25-4C₁₈H₁₆O₅

2-Benzylidene-4,6,7-trimethoxy-1-benzofuran-3(2H)-one

CAS 23045-77-4C₁₈H₁₆O₅

2,3-Dihydroxy-5-oxo-2,3-diphenylcyclopentane-1-carboxylic acid

CAS 67389-54-2C₁₈H₁₆O₅

1-(2H-1,3-Benzodioxol-5-yl)-3-(4-ethoxyphenyl)propane-1,3-dione

CAS 622852-79-3C₁₈H₁₆O₅

Dimethyl [(dibenzo[b,d]furan-2-yl)methyl]propanedioate

CAS 61484-82-0C₁₈H₁₆O₅

3,5,6-Trihydroxy-2-(3-methylbut-2-EN-1-yl)-9H-xanthen-9-one

CAS 881693-20-5C₁₈H₁₆O₅

6-(2-Methylpropoxy)-9-oxo-9H-xanthene-2-carboxylic acid

CAS 88086-76-4C₁₈H₁₆O₅

(1-Methoxy-3-methyl-9-oxo-9H-xanthen-4-yl)methyl acetate

CAS 85637-25-8C₁₈H₁₆O₅

2-(4,5-Dihydroxy-10-oxo-9,10-dihydroanthracen-2-yl)ethyl acetate

CAS 52924-61-5C₁₈H₁₆O₅

6,7-Dimethoxy-4-(4-methoxyphenyl)-2H-chromen-2-one

CAS 23982-35-6C₁₈H₁₆O₅

5,6,7-Trimethoxy-3-phenyl-4H-1-benzopyran-4-one

CAS 1671-78-9C₁₈H₁₆O₅

(1S,4S,5R)a1,4aDihydroxya3a[(naphthalena2ayl)methoxy]a6aoxabicyclo[3.2.1]octa2aena7aone

CAS 1233376-76-5C₁₈H₁₆O₅

2-(3,4,5-Trimethoxybenzylidene)benzofuran-3(2H)-one

CAS 24388-02-1C₁₈H₁₆O₅

2H-1-Benzopyran-8-carboxylic acid,3,4-dihydro-6-methoxy-3-methyl-4-oxo-2-phenyl-

CAS 102569-06-2C₁₈H₁₆O₅

(2R,3R)-2-(Benzo[d][1,3]dioxol-5-yl)-7-methoxy-3-methyl-2,3-dihydrobenzofuran-5-carbaldehyde

CAS 1613724-21-2C₁₈H₁₆O₅

Methyl 4-(4-(p-tolyloxy)phenyl)-2,4-dioxobutanoate

CAS 1159979-94-8C₁₈H₁₆O₅

7-(Benzyloxy)-5,6-dimethoxycoumarin
68468-15-5C₁₈H₁₆O₅

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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 7-Methoxy-3-(6-methoxy-1,3-benzodioxol-5-yl)-2H-1-benzopyran, Combretastatin D1, 2-Propen-1-one, 1-(1,3-benzodioxol-5-yl)-3-(3,5-dimethoxyphenyl)-, (E)-. 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.