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Molecular formula

C18H18N4O3

319 compounds have this formula on CompoundList.

Molar mass
338.37g/mol
Monoisotopic mass
338.1379Da
Atoms
43
Elements
4
Rings plus double bonds
12

The formula C18H18N4O3 describes a molecule made of 18 carbon atoms, 18 hydrogen atoms, 4 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 × 1863.89%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 185.36%
    1.008 × 18 = 18.144 g/mol
  • N Nitrogen × 416.56%
    14.007 × 4 = 56.028 g/mol
  • O Oxygen × 314.18%
    15.999 × 3 = 47.997 g/mol
Look up another formula

Compounds with the formula C18H18N4O3

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

Showing 301 to 319 of 319 compounds

4-(4-(2-Oxo-2,3-dihydro-1H-benzo[d]imidazol-1-yl)piperidine-1-carbonyl)pyridine 1-oxide chemical structure, C18H18N4O3, CAS 1325971-77-4
4-(4-(2-Oxo-2,3-dihydro-1H-benzo[d]imidazol-1-yl)piperidine-1-carbonyl)pyridine 1-oxide
CAS 1325971-77-4C18H18N4O3
4-(Pyridin-4-yl)-6-(3,4,5-trimethoxyphenyl)pyrimidin-2-amine chemical structure, C18H18N4O3, CAS 914675-00-6
4-(Pyridin-4-yl)-6-(3,4,5-trimethoxyphenyl)pyrimidin-2-amine
CAS 914675-00-6C18H18N4O3
4-(Pyridin-4-yl)-6-(2,4,5-trimethoxyphenyl)pyrimidin-2-amine chemical structure, C18H18N4O3, CAS 914674-99-0
4-(Pyridin-4-yl)-6-(2,4,5-trimethoxyphenyl)pyrimidin-2-amine
CAS 914674-99-0C18H18N4O3
1-(1-(4-Nitrophenyl)piperidin-4-yl)-1H-benzo[d]imidazol-2(3H)-one chemical structure, C18H18N4O3, CAS 1301604-52-3
1-(1-(4-Nitrophenyl)piperidin-4-yl)-1H-benzo[d]imidazol-2(3H)-one
CAS 1301604-52-3C18H18N4O3
1-(1-(2-Nitrophenyl)piperidin-4-yl)-1H-benzo[d]imidazol-2(3H)-one chemical structure, C18H18N4O3, CAS 2194003-45-5
1-(1-(2-Nitrophenyl)piperidin-4-yl)-1H-benzo[d]imidazol-2(3H)-one
CAS 2194003-45-5C18H18N4O3
2-(((1,3-Dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)methyl)azo)-4-nitrophenol chemical structure, C18H18N4O3, CAS 85409-64-9
2-(((1,3-Dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)methyl)azo)-4-nitrophenol
CAS 85409-64-9C18H18N4O3
2-Cyclopropyl-N-(2,5-dimethoxyphenyl)imidazo[1,2-b]pyridazine-6-carboxamide chemical structure, C18H18N4O3, CAS 2742067-69-0
2-Cyclopropyl-N-(2,5-dimethoxyphenyl)imidazo[1,2-b]pyridazine-6-carboxamide
CAS 2742067-69-0C18H18N4O3
5-Cyclopropyl-N-{2-hydroxy-2-[4-(1H-pyrazol-1-yl)phenyl]ethyl}-1,2-oxazole-3-carboxamide chemical structure, C18H18N4O3, CAS 2415540-51-9
5-Cyclopropyl-N-{2-hydroxy-2-[4-(1H-pyrazol-1-yl)phenyl]ethyl}-1,2-oxazole-3-carboxamide
CAS 2415540-51-9C18H18N4O3
4-(5-{[1-(Furan-2-carbonyl)piperidin-4-yl]methyl}-1,2,4-oxadiazol-3-yl)pyridine chemical structure, C18H18N4O3, CAS 2415452-30-9
4-(5-{[1-(Furan-2-carbonyl)piperidin-4-yl]methyl}-1,2,4-oxadiazol-3-yl)pyridine
CAS 2415452-30-9C18H18N4O3
Benzyl N-[1-benzyl-4-(hydroxymethyl)-1H-1,2,3-triazol-5-yl]carbamate chemical structure, C18H18N4O3, CAS 2680877-53-4
Benzyl N-[1-benzyl-4-(hydroxymethyl)-1H-1,2,3-triazol-5-yl]carbamate
CAS 2680877-53-4C18H18N4O3
Benzyl N-[1-(2-hydroxyethyl)-3-(pyridin-3-yl)-1H-pyrazol-5-yl]carbamate chemical structure, C18H18N4O3, CAS 2680699-99-2
Benzyl N-[1-(2-hydroxyethyl)-3-(pyridin-3-yl)-1H-pyrazol-5-yl]carbamate
CAS 2680699-99-2C18H18N4O3
Benzyl N-[5-cyano-2-(oxan-4-yl)pyrimidin-4-yl]carbamate chemical structure, C18H18N4O3, CAS 2680747-56-0
Benzyl N-[5-cyano-2-(oxan-4-yl)pyrimidin-4-yl]carbamate
CAS 2680747-56-0C18H18N4O3
(3,5-Dimethoxyphenyl)[6-[(5-methyl-1H-pyrazol-3-yl)amino]-2-pyridinyl]methanone chemical structure, C18H18N4O3, CAS 2061897-63-8
(3,5-Dimethoxyphenyl)[6-[(5-methyl-1H-pyrazol-3-yl)amino]-2-pyridinyl]methanone
CAS 2061897-63-8C18H18N4O3
6-(2H-1,3-Benzodioxole-5-carbonyl)-3-(6-methylpyrimidin-4-yl)-3,6-diazabicyclo[3.1.1]heptane chemical structure, C18H18N4O3, CAS 3054593-24-4
6-(2H-1,3-Benzodioxole-5-carbonyl)-3-(6-methylpyrimidin-4-yl)-3,6-diazabicyclo[3.1.1]heptane
CAS 3054593-24-4C18H18N4O3
Pyridin-3-yl 4-(2,3-dihydro-2-oxo-1H-benzo[d]imidazol-1-yl)-1-piperidinecarboxylate chemical structure, C18H18N4O3, CAS 906735-92-0
Pyridin-3-yl 4-(2,3-dihydro-2-oxo-1H-benzo[d]imidazol-1-yl)-1-piperidinecarboxylate
CAS 906735-92-0C18H18N4O3
1-(1-(6-Oxo-1,6-dihydropyridine-3-carbonyl)piperidin-4-yl)-1H-benzo[d]imidazol-2(3H)-one chemical structure, C18H18N4O3, CAS 2326814-82-6
1-(1-(6-Oxo-1,6-dihydropyridine-3-carbonyl)piperidin-4-yl)-1H-benzo[d]imidazol-2(3H)-one
CAS 2326814-82-6C18H18N4O3
3-(4-(2-Oxo-2,3-dihydro-1H-benzo[d]imidazol-1-yl)piperidine-1-carbonyl)pyridine 1-oxide chemical structure, C18H18N4O3, CAS 2322073-57-2
3-(4-(2-Oxo-2,3-dihydro-1H-benzo[d]imidazol-1-yl)piperidine-1-carbonyl)pyridine 1-oxide
CAS 2322073-57-2C18H18N4O3
2-(4-(2-Oxo-2,3-dihydro-1H-benzo[d]imidazol-1-yl)piperidine-1-carbonyl)pyridine 1-oxide chemical structure, C18H18N4O3, CAS 2325936-17-0
2-(4-(2-Oxo-2,3-dihydro-1H-benzo[d]imidazol-1-yl)piperidine-1-carbonyl)pyridine 1-oxide
CAS 2325936-17-0C18H18N4O3
(E)-2-Cyano-N-[4-[[2-(dimethylamino)acetyl]amino]phenyl]-3-(furan-2-yl)prop-2-enamide chemical structure, C18H18N4O3
(E)-2-Cyano-N-[4-[[2-(dimethylamino)acetyl]amino]phenyl]-3-(furan-2-yl)prop-2-enamide
C18H18N4O3

Frequently asked questions

What is the molar mass of C18H18N4O3?

The molar mass of C18H18N4O3 is 338.37 g/mol, calculated from standard atomic weights for 18 carbon atoms, 18 hydrogen atoms, 4 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 338.1379 Da.

How many compounds have the formula C18H18N4O3?

CompoundList lists 319 compounds with the molecular formula C18H18N4O3, including 4-(4-(2-Oxo-2,3-dihydro-1H-benzo[d]imidazol-1-yl)piperidine-1-carbonyl)pyridine 1-oxide, 4-(Pyridin-4-yl)-6-(3,4,5-trimethoxyphenyl)pyrimidin-2-amine, 4-(Pyridin-4-yl)-6-(2,4,5-trimethoxyphenyl)pyrimidin-2-amine. 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 C18H18N4O3?

C18H18N4O3 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.