Molecular formula

C₁₈H₁₆N₂O₃

519 compounds have this formula on CompoundList.

Molar mass: 308.34g/mol
Monoisotopic mass: 308.1161Da
Atoms: 39
Elements: 4
Rings plus double bonds: 12

The formula C18H16N2O3 describes a molecule made of 18 carbon atoms, 16 hydrogen atoms, 2 nitrogen 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 × 1870.12%
12.011 × 18 = 216.198 g/mol
H Hydrogen × 165.23%
1.008 × 16 = 16.128 g/mol
N Nitrogen × 29.09%
14.007 × 2 = 28.014 g/mol
O Oxygen × 315.57%
15.999 × 3 = 47.997 g/mol

Look up another formula

Compounds with the formula C18H16N2O3

Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.

Showing 501 to 519 of 519 compounds

4-(2-(Benzyloxy)phenyl)-1-methyl-1H-pyrazole-3-carboxylic acid

CAS 3078385-57-3C₁₈H₁₆N₂O₃

2-(Benzyloxy)-5-(1-methyl-1H-pyrazol-5-yl)benzoic acid

CAS 3078461-63-6C₁₈H₁₆N₂O₃

4-(Benzyloxy)-3-(1-methyl-1H-pyrazol-5-yl)benzoic acid

CAS 3078557-99-7C₁₈H₁₆N₂O₃

N-Methoxy-N-methyl-1-oxo-2-phenyl-1,2-dihydroisoquinoline-3-carboxamide

CAS 3054558-95-8C₁₈H₁₆N₂O₃

N-Benzyl-2-methoxy-1-oxo-1,2-dihydroisoquinoline-3-carboxamide

CAS 3054544-40-7C₁₈H₁₆N₂O₃

N-Benzyl-2-cyano-3-(4-hydroxy-3-methoxyphenyl)acrylamide

CAS 329721-71-3C₁₈H₁₆N₂O₃

1-(2-Methoxyphenyl)-3-(4-methoxyphenyl)-1H-pyrazole-4-carbaldehyde

CAS 1020241-07-9C₁₈H₁₆N₂O₃

1,3-Bis(4-methoxyphenyl)-1H-pyrazole-4-carbaldehyde

CAS 1020240-81-6C₁₈H₁₆N₂O₃

3-(4-Methoxyphenyl)-1-p-tolyl-1H-pyrazole-5-carboxylic acid

CAS 1020240-50-9C₁₈H₁₆N₂O₃

1-(3-Methoxyphenyl)-3-(p-tolyl)-1H-pyrazole-5-carboxylic acid

CAS 1495488-93-1C₁₈H₁₆N₂O₃

3-(2-Methoxyphenyl)-1-(m-tolyl)-1H-pyrazole-5-carboxylic acid

CAS 1480336-91-1C₁₈H₁₆N₂O₃

3-(3-Methoxyphenyl)-1-(o-tolyl)-1H-pyrazole-5-carboxylic acid

CAS 1465586-81-5C₁₈H₁₆N₂O₃

3-(2-Methoxyphenyl)-1-(o-tolyl)-1H-pyrazole-5-carboxylic acid

CAS 1492458-97-5C₁₈H₁₆N₂O₃

3-(2-Methoxyphenyl)-1-(p-tolyl)-1H-pyrazole-5-carboxylic acid

CAS 1494231-31-0C₁₈H₁₆N₂O₃

Methyl 4-[(4-aminonaphthalen-1-yl)oxymethyl]pyridine-2-carboxylate

CAS 1864823-17-5C₁₈H₁₆N₂O₃

3-(2-(Benzylamino)-2-oxoethyl)-1H-indole-2-carboxylic acid

CAS 101731-73-1C₁₈H₁₆N₂O₃

N-[(E)-1-Amino-2-benzoyl-3-oxobut-1-enyl]benzamide

CAS 415938-38-4C₁₈H₁₆N₂O₃

Ethyl (Z)-2-cyano-3-[4-(pyridin-2-ylmethoxy)phenyl]prop-2-enoate

C₁₈H₁₆N₂O₃

3-Hydroxy-2-methoxy-7,12-dihydro-6aH-isoquinolino[3,2-c][1,4]benzodiazepin-14-one

C₁₈H₁₆N₂O₃

Frequently asked questions

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What is the molar mass of C18H16N2O3?

The molar mass of C18H16N2O3 is 308.34 g/mol, calculated from standard atomic weights for 18 carbon atoms, 16 hydrogen atoms, 2 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 308.1161 Da.

How many compounds have the formula C18H16N2O3?

CompoundList lists 519 compounds with the molecular formula C18H16N2O3, including 4-(2-(Benzyloxy)phenyl)-1-methyl-1H-pyrazole-3-carboxylic acid, 2-(Benzyloxy)-5-(1-methyl-1H-pyrazol-5-yl)benzoic acid, 4-(Benzyloxy)-3-(1-methyl-1H-pyrazol-5-yl)benzoic 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 C18H16N2O3?

C18H16N2O3 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.