Molecular formula

C₁₈H₁₃N₅

29 compounds have this formula on CompoundList.

Molar mass: 299.34g/mol
Monoisotopic mass: 299.1171Da
Atoms: 36
Elements: 3
Rings plus double bonds: 15

The formula C18H13N5 describes a molecule made of 18 carbon atoms, 13 hydrogen atoms and 5 nitrogen 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 × 1872.23%
12.011 × 18 = 216.198 g/mol
H Hydrogen × 134.38%
1.008 × 13 = 13.104 g/mol
N Nitrogen × 523.40%
14.007 × 5 = 70.035 g/mol

Look up another formula

Compounds with the formula C18H13N5

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

Showing 1 to 29 of 29 compounds

2-(1-Cyano-2-phenylvinyl)-5,7-dimethylpyrazolo[1,5-a]pyrimidine-3-carbonitrile

CAS 1164556-51-7C₁₈H₁₃N₅

N-Pyridin-2-yl-3-pyridin-2-yliminoisoindol-1-amine

CAS 92411-50-2C₁₈H₁₃N₅

11-(1H-Imidazol-1-yl)-2,3-dihydro-1H-cyclopenta[4,5]pyrido[1,2-a]benzimidazole-4-carbonitrile

CAS 307327-32-8C₁₈H₁₃N₅

2-Amino-1-(3-methylphenyl)pyrrolo[3,2-b]quinoxaline-3-carbonitrile

CAS 297147-93-4C₁₈H₁₃N₅

2-Amino-1-(2-methylphenyl)pyrrolo[3,2-b]quinoxaline-3-carbonitrile

CAS 300805-35-0C₁₈H₁₃N₅

4,4',4''-(1H-Imidazole-2,4,5-triyl)tripyridine

CAS 23974-93-8C₁₈H₁₃N₅

2-Amino-1-benzyl-1H-pyrrolo[2,3-b]quinoxaline-3-carbonitrile

CAS 30119-37-0C₁₈H₁₃N₅

1,3-Bis(2-pyridylimino)isoindole

CAS 14526-01-3C₁₈H₁₃N₅

2-[6-(4-Methylphenyl)-[1,2,4]triazolo[3,4-a]phthalazin-3-yl]acetonitrile

CAS 727675-74-3C₁₈H₁₃N₅

8-Ethynyl-1-methyl-6-(pyridin-2-yl)-4H-benzo[f][1,2,4]triazolo[4,3-a][1,4]diazepine

CAS 1349115-59-8C₁₈H₁₃N₅

2-(2-Biphenyl-3-yl-2H-tetrazol-5-yl)-pyridine

CAS 605647-32-3C₁₈H₁₃N₅

3-Phenyl-5-(3-[1,2,4]triazol-4-yl-phenyl)-pyridazine

CAS 660423-65-4C₁₈H₁₃N₅

2-Amino-1-(4-methylphenyl)-1H-pyrrolo[2,3-b]quinoxaline-3-carbonitrile

CAS 301358-44-1C₁₈H₁₃N₅

2-(Benzylamino)pyrimido[1,2-a]benzimidazole-3-carbonitrile

CAS 303059-26-9C₁₈H₁₃N₅

Pyridine, 2-[5-phenyl-4-(4-pyridinyl)-4H-1,2,4-triazol-3-yl]-

CAS 758695-48-6C₁₈H₁₃N₅

16-Methyl-5-phenyl-3,4,6,7,16-pentazatetracyclo[7.7.0.02,6.010,15]hexadeca-1(9),2,4,7,10,12,14-heptaene

CAS 74409-88-4C₁₈H₁₃N₅

2~4~-(1H-Imidazol-2-yl)-1~2~,2~2~:2~6~,3~2~-terpyridine

CAS 873927-64-1C₁₈H₁₃N₅

3-(1H-Imidazol-2-yl)-5,6-diphenyl-1,2,4-triazine

CAS 602279-16-3C₁₈H₁₃N₅

3,6-Di(1H-imidazol-1-yl)-9H-carbazole

CAS 1817856-31-7C₁₈H₁₃N₅

2,7-Di(1H-imidazol-1-yl)-9H-carbazole

CAS 2711006-22-1C₁₈H₁₃N₅

2-[2-(4-Biphenylyl)-2H-tetrazol-5-yl]pyridine

CAS 605647-33-4C₁₈H₁₃N₅

1'-Methyl-1'H-[1,2'-biphthalazine]-4'-carbonitrile

CAS 54739-33-2C₁₈H₁₃N₅

5-[(Quinolin-8-yl)diazenyl]quinolin-8-amine

CAS 190910-19-1C₁₈H₁₃N₅

2,4,5-Tris(2-pyridyl)imidazole

CAS 23974-92-7C₁₈H₁₃N₅

Frequently asked questions

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What is the molar mass of C18H13N5?

The molar mass of C18H13N5 is 299.34 g/mol, calculated from standard atomic weights for 18 carbon atoms, 13 hydrogen atoms and 5 nitrogen atoms. The monoisotopic mass is 299.1171 Da.

How many compounds have the formula C18H13N5?

CompoundList lists 29 compounds with the molecular formula C18H13N5, including 2-(1-Cyano-2-phenylvinyl)-5,7-dimethylpyrazolo[1,5-a]pyrimidine-3-carbonitrile, N-Pyridin-2-yl-3-pyridin-2-yliminoisoindol-1-amine, 11-(1H-Imidazol-1-yl)-2,3-dihydro-1H-cyclopenta[4,5]pyrido[1,2-a]benzimidazole-4-carbonitrile. 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 C18H13N5?

C18H13N5 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.