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Molecular formula

C18H13N5O4

21 compounds have this formula on CompoundList.

Molar mass
363.33g/mol
Monoisotopic mass
363.0968Da
Atoms
40
Elements
4
Rings plus double bonds
15

The formula C18H13N5O4 describes a molecule made of 18 carbon atoms, 13 hydrogen atoms, 5 nitrogen atoms and 4 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 × 1859.50%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 133.61%
    1.008 × 13 = 13.104 g/mol
  • N Nitrogen × 519.28%
    14.007 × 5 = 70.035 g/mol
  • O Oxygen × 417.61%
    15.999 × 4 = 63.996 g/mol
Look up another formula

Compounds with the formula C18H13N5O4

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

Showing 1 to 21 of 21 compounds

N-{2-Nitro-5-[(3-pyridinylcarbonyl)amino]phenyl}nicotinamide chemical structure, C18H13N5O4, CAS 547727-76-4
N-{2-Nitro-5-[(3-pyridinylcarbonyl)amino]phenyl}nicotinamide
CAS 547727-76-4C18H13N5O4
3-(2,5-Dioxopyrrolidin-1-yl)-N-(5-(pyridin-4-yl)-1,3,4-oxadiazol-2-yl)benzamide chemical structure, C18H13N5O4, CAS 887867-08-5
3-(2,5-Dioxopyrrolidin-1-yl)-N-(5-(pyridin-4-yl)-1,3,4-oxadiazol-2-yl)benzamide
CAS 887867-08-5C18H13N5O4
5-Nitro-1-N,3-N-dipyridin-3-ylbenzene-1,3-dicarboxamide chemical structure, C18H13N5O4, CAS 332116-37-7
5-Nitro-1-N,3-N-dipyridin-3-ylbenzene-1,3-dicarboxamide
CAS 332116-37-7C18H13N5O4
6-Amino-3-methyl-4-(5-(3-nitrophenyl)furan-2-yl)-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile chemical structure, C18H13N5O4, CAS 609335-65-1
6-Amino-3-methyl-4-(5-(3-nitrophenyl)furan-2-yl)-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile
CAS 609335-65-1C18H13N5O4
7-(3-Methoxyphenyl)-3-(4-nitrophenyl)-7H,8H-[1,2,4]triazolo[4,3-a]pyrazin-8-one chemical structure, C18H13N5O4, CAS 1021253-47-3
7-(3-Methoxyphenyl)-3-(4-nitrophenyl)-7H,8H-[1,2,4]triazolo[4,3-a]pyrazin-8-one
CAS 1021253-47-3C18H13N5O4
2,4-Dinitro-N-(p-(phenylazo)phenyl)aniline chemical structure, C18H13N5O4, CAS 315698-69-2
2,4-Dinitro-N-(p-(phenylazo)phenyl)aniline
CAS 315698-69-2C18H13N5O4
3-(2,5-Dioxopyrrolidin-1-yl)-N-[5-(pyridin-3-yl)-1,3,4-oxadiazol-2-yl]benzamide chemical structure, C18H13N5O4, CAS 887893-32-5
3-(2,5-Dioxopyrrolidin-1-yl)-N-[5-(pyridin-3-yl)-1,3,4-oxadiazol-2-yl]benzamide
CAS 887893-32-5C18H13N5O4
Phenyl(4-pyridinyl)methanone {2,4-bisnitrophenyl}hydrazone chemical structure, C18H13N5O4, CAS 2910-36-3
Phenyl(4-pyridinyl)methanone {2,4-bisnitrophenyl}hydrazone
CAS 2910-36-3C18H13N5O4
N-(4-(4-Methyl-5-oxo-4,5-dihydro-1H-tetrazol-1-yl)phenyl)-4-oxo-4H-chromene-2-carboxamide chemical structure, C18H13N5O4, CAS 1396795-57-5
N-(4-(4-Methyl-5-oxo-4,5-dihydro-1H-tetrazol-1-yl)phenyl)-4-oxo-4H-chromene-2-carboxamide
CAS 1396795-57-5C18H13N5O4
N-(2-((3-(Furan-2-yl)-1,2,4-oxadiazol-5-yl)methyl)phenyl)-6-oxo-1,6-dihydropyridazine-3-carboxamide chemical structure, C18H13N5O4, CAS 1797267-71-0
N-(2-((3-(Furan-2-yl)-1,2,4-oxadiazol-5-yl)methyl)phenyl)-6-oxo-1,6-dihydropyridazine-3-carboxamide
CAS 1797267-71-0C18H13N5O4
2-(3-Nitrobenzyl)-7-phenyl-[1,2,4]triazolo[4,3-a]pyrazine-3,8(2H,7H)-dione chemical structure, C18H13N5O4, CAS 2034354-87-3
2-(3-Nitrobenzyl)-7-phenyl-[1,2,4]triazolo[4,3-a]pyrazine-3,8(2H,7H)-dione
CAS 2034354-87-3C18H13N5O4
2-(4-Nitrobenzyl)-7-phenyl-[1,2,4]triazolo[4,3-a]pyrazine-3,8(2H,7H)-dione chemical structure, C18H13N5O4, CAS 2034348-03-1
2-(4-Nitrobenzyl)-7-phenyl-[1,2,4]triazolo[4,3-a]pyrazine-3,8(2H,7H)-dione
CAS 2034348-03-1C18H13N5O4
3-Hydroxy-4-(2-{4-[(E)-(4-nitrophenyl)diazenyl]phenyl}hydrazinylidene)cyclohexa-2,5-dien-1-one chemical structure, C18H13N5O4, CAS 649729-57-7
3-Hydroxy-4-(2-{4-[(E)-(4-nitrophenyl)diazenyl]phenyl}hydrazinylidene)cyclohexa-2,5-dien-1-one
CAS 649729-57-7C18H13N5O4
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 3-phenyl-2-(1H-1,2,3,4-tetrazol-1-yl)propanoate chemical structure, C18H13N5O4, CAS 2248295-47-6
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 3-phenyl-2-(1H-1,2,3,4-tetrazol-1-yl)propanoate
CAS 2248295-47-6C18H13N5O4
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-[5-(4-methylphenyl)-2H-1,2,3,4-tetrazol-2-yl]acetate chemical structure, C18H13N5O4, CAS 2248303-75-3
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-[5-(4-methylphenyl)-2H-1,2,3,4-tetrazol-2-yl]acetate
CAS 2248303-75-3C18H13N5O4
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(5-phenyl-2H-1,2,3,4-tetrazol-2-yl)propanoate chemical structure, C18H13N5O4, CAS 2248412-61-3
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(5-phenyl-2H-1,2,3,4-tetrazol-2-yl)propanoate
CAS 2248412-61-3C18H13N5O4
Benzyl N-[4-cyano-1-(2-nitrophenyl)-1H-pyrazol-5-yl]carbamate chemical structure, C18H13N5O4, CAS 2680797-68-4
Benzyl N-[4-cyano-1-(2-nitrophenyl)-1H-pyrazol-5-yl]carbamate
CAS 2680797-68-4C18H13N5O4
Benzyl N-[4-cyano-1-(4-nitrophenyl)-1H-pyrazol-3-yl]carbamate chemical structure, C18H13N5O4, CAS 2680690-08-6
Benzyl N-[4-cyano-1-(4-nitrophenyl)-1H-pyrazol-3-yl]carbamate
CAS 2680690-08-6C18H13N5O4
Benzyl N-[4-cyano-1-(4-nitrophenyl)-1H-pyrazol-5-yl]carbamate chemical structure, C18H13N5O4, CAS 2680662-32-0
Benzyl N-[4-cyano-1-(4-nitrophenyl)-1H-pyrazol-5-yl]carbamate
CAS 2680662-32-0C18H13N5O4
Benzyl N-[4-cyano-1-(2-nitrophenyl)-1H-pyrazol-3-yl]carbamate chemical structure, C18H13N5O4, CAS 2680807-55-8
Benzyl N-[4-cyano-1-(2-nitrophenyl)-1H-pyrazol-3-yl]carbamate
CAS 2680807-55-8C18H13N5O4
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 5-methyl-1-[(pyridin-4-yl)methyl]-1H-1,2,3-triazole-4-carboxylate chemical structure, C18H13N5O4, CAS 2248275-35-4
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 5-methyl-1-[(pyridin-4-yl)methyl]-1H-1,2,3-triazole-4-carboxylate
CAS 2248275-35-4C18H13N5O4

Frequently asked questions

What is the molar mass of C18H13N5O4?

The molar mass of C18H13N5O4 is 363.33 g/mol, calculated from standard atomic weights for 18 carbon atoms, 13 hydrogen atoms, 5 nitrogen atoms and 4 oxygen atoms. The monoisotopic mass is 363.0968 Da.

How many compounds have the formula C18H13N5O4?

CompoundList lists 21 compounds with the molecular formula C18H13N5O4, including N-{2-Nitro-5-[(3-pyridinylcarbonyl)amino]phenyl}nicotinamide, 3-(2,5-Dioxopyrrolidin-1-yl)-N-(5-(pyridin-4-yl)-1,3,4-oxadiazol-2-yl)benzamide, 5-Nitro-1-N,3-N-dipyridin-3-ylbenzene-1,3-dicarboxamide. 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 C18H13N5O4?

C18H13N5O4 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.