CompoundList
Sign in
Molecular formula

C18H11N3O5

38 compounds have this formula on CompoundList.

Molar mass
349.30g/mol
Monoisotopic mass
349.0699Da
Atoms
37
Elements
4
Rings plus double bonds
15

The formula C18H11N3O5 describes a molecule made of 18 carbon atoms, 11 hydrogen atoms, 3 nitrogen 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 × 1861.89%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 113.17%
    1.008 × 11 = 11.088 g/mol
  • N Nitrogen × 312.03%
    14.007 × 3 = 42.021 g/mol
  • O Oxygen × 522.90%
    15.999 × 5 = 79.995 g/mol
Look up another formula

Compounds with the formula C18H11N3O5

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

Showing 1 to 38 of 38 compounds

N,2-bis(1,3-dioxoisoindol-2-yl)acetamide chemical structure, C18H11N3O5, CAS 5480-33-1
N,2-bis(1,3-dioxoisoindol-2-yl)acetamide
CAS 5480-33-1C18H11N3O5
Aqabamycin G chemical structure, C18H11N3O5, CAS 1252019-82-1
Aqabamycin G
CAS 1252019-82-1C18H11N3O5
5-Nitro-N-(2-phenylbenzo[d]oxazol-5-yl)furan-2-carboxamide chemical structure, C18H11N3O5, CAS 330473-27-3
5-Nitro-N-(2-phenylbenzo[d]oxazol-5-yl)furan-2-carboxamide
CAS 330473-27-3C18H11N3O5
N-(5-(Benzo[d][1,3]dioxol-5-yl)-1,3,4-oxadiazol-2-yl)benzofuran-2-carboxamide chemical structure, C18H11N3O5, CAS 922090-69-5
N-(5-(Benzo[d][1,3]dioxol-5-yl)-1,3,4-oxadiazol-2-yl)benzofuran-2-carboxamide
CAS 922090-69-5C18H11N3O5
2-(1,3-Dioxo-1,3-dihydro-2H-isoindol-2-yl)-N-(1,3-dioxo-2,3-dihydro-1H-isoindol-5-yl)acetamide chemical structure, C18H11N3O5, CAS 518008-64-5
2-(1,3-Dioxo-1,3-dihydro-2H-isoindol-2-yl)-N-(1,3-dioxo-2,3-dihydro-1H-isoindol-5-yl)acetamide
CAS 518008-64-5C18H11N3O5
Benzo(g)quinoxalin-2(1H)-one, 3-(3,4-dihydroxy-5-nitrophenyl)- chemical structure, C18H11N3O5, CAS 126653-41-6
Benzo(g)quinoxalin-2(1H)-one, 3-(3,4-dihydroxy-5-nitrophenyl)-
CAS 126653-41-6C18H11N3O5
(4-Oxo-1,2,3-benzotriazin-3-yl)methyl 2-oxochromene-3-carboxylate chemical structure, C18H11N3O5, CAS 851863-01-9
(4-Oxo-1,2,3-benzotriazin-3-yl)methyl 2-oxochromene-3-carboxylate
CAS 851863-01-9C18H11N3O5
4-[5-(6-Nitro-1H-benzimidazol-2-yl)furan-2-yl]benzoic acid chemical structure, C18H11N3O5, CAS 537037-27-7
4-[5-(6-Nitro-1H-benzimidazol-2-yl)furan-2-yl]benzoic acid
CAS 537037-27-7C18H11N3O5
Acetamide, N-(9-nitro-5-oxo-5H-benzo[a]phenoxazin-6-yl)- chemical structure, C18H11N3O5, CAS 58907-77-0
Acetamide, N-(9-nitro-5-oxo-5H-benzo[a]phenoxazin-6-yl)-
CAS 58907-77-0C18H11N3O5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 3-cyclopropyl-[1,2]oxazolo[5,4-b]pyridine-5-carboxylate chemical structure, C18H11N3O5, CAS 2248286-46-4
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 3-cyclopropyl-[1,2]oxazolo[5,4-b]pyridine-5-carboxylate
CAS 2248286-46-4C18H11N3O5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(1-oxo-1,2-dihydrophthalazin-2-yl)acetate chemical structure, C18H11N3O5, CAS 2248276-50-6
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(1-oxo-1,2-dihydrophthalazin-2-yl)acetate
CAS 2248276-50-6C18H11N3O5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(3-methyl-1,2,4-oxadiazol-5-yl)benzoate chemical structure, C18H11N3O5, CAS 2248356-02-5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(3-methyl-1,2,4-oxadiazol-5-yl)benzoate
CAS 2248356-02-5C18H11N3O5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 5-methyl-3-(pyridin-3-yl)-1,2-oxazole-4-carboxylate chemical structure, C18H11N3O5, CAS 2248387-95-1
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 5-methyl-3-(pyridin-3-yl)-1,2-oxazole-4-carboxylate
CAS 2248387-95-1C18H11N3O5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(2-methylpyridin-4-yl)-1,3-oxazole-4-carboxylate chemical structure, C18H11N3O5, CAS 2248409-77-8
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(2-methylpyridin-4-yl)-1,3-oxazole-4-carboxylate
CAS 2248409-77-8C18H11N3O5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 4-(2-oxo-2,3-dihydro-1H-imidazol-1-yl)benzoate chemical structure, C18H11N3O5, CAS 2248283-54-5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 4-(2-oxo-2,3-dihydro-1H-imidazol-1-yl)benzoate
CAS 2248283-54-5C18H11N3O5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 3-methyl-4-oxo-3,4-dihydrophthalazine-1-carboxylate chemical structure, C18H11N3O5, CAS 2248321-83-5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 3-methyl-4-oxo-3,4-dihydrophthalazine-1-carboxylate
CAS 2248321-83-5C18H11N3O5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 4-(2-cyanoacetamido)benzoate chemical structure, C18H11N3O5, CAS 2248413-32-1
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 4-(2-cyanoacetamido)benzoate
CAS 2248413-32-1C18H11N3O5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 4-(5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzoate chemical structure, C18H11N3O5, CAS 2649035-56-1
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 4-(5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzoate
CAS 2649035-56-1C18H11N3O5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 8-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylate chemical structure, C18H11N3O5, CAS 2248325-93-9
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 8-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylate
CAS 2248325-93-9C18H11N3O5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 7-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylate chemical structure, C18H11N3O5, CAS 2248356-58-1
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 7-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylate
CAS 2248356-58-1C18H11N3O5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(5-phenyl-1,3,4-oxadiazol-2-yl)acetate chemical structure, C18H11N3O5, CAS 2248397-25-1
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(5-phenyl-1,3,4-oxadiazol-2-yl)acetate
CAS 2248397-25-1C18H11N3O5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 5-oxo-1-phenyl-2,5-dihydro-1H-pyrazole-3-carboxylate chemical structure, C18H11N3O5, CAS 2248328-37-0
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 5-oxo-1-phenyl-2,5-dihydro-1H-pyrazole-3-carboxylate
CAS 2248328-37-0C18H11N3O5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 7-methoxycinnoline-3-carboxylate chemical structure, C18H11N3O5, CAS 2248289-65-6
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 7-methoxycinnoline-3-carboxylate
CAS 2248289-65-6C18H11N3O5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-methyl-4-oxo-3,4-dihydroquinazoline-7-carboxylate chemical structure, C18H11N3O5, CAS 2248362-28-7
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-methyl-4-oxo-3,4-dihydroquinazoline-7-carboxylate
CAS 2248362-28-7C18H11N3O5

Frequently asked questions

What is the molar mass of C18H11N3O5?

The molar mass of C18H11N3O5 is 349.30 g/mol, calculated from standard atomic weights for 18 carbon atoms, 11 hydrogen atoms, 3 nitrogen atoms and 5 oxygen atoms. The monoisotopic mass is 349.0699 Da.

How many compounds have the formula C18H11N3O5?

CompoundList lists 38 compounds with the molecular formula C18H11N3O5, including N,2-bis(1,3-dioxoisoindol-2-yl)acetamide, Aqabamycin G, 5-Nitro-N-(2-phenylbenzo[d]oxazol-5-yl)furan-2-carboxamide. 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 C18H11N3O5?

C18H11N3O5 has a degree of unsaturation of 15. 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.