C21H15N3O
50 compounds have this formula on CompoundList.
- Molar mass
- 325.37g/mol
- Monoisotopic mass
- 325.1215Da
- Atoms
- 40
- Elements
- 4
- Rings plus double bonds
- 16
The formula C21H15N3O describes a molecule made of 21 carbon atoms, 15 hydrogen atoms, 3 nitrogen atoms and 1 oxygen atom. 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 × 2177.52%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 154.65%1.008 × 15 = 15.120 g/mol
- N Nitrogen × 312.91%14.007 × 3 = 42.021 g/mol
- O Oxygen × 14.92%15.999 × 1 = 15.999 g/mol
Compounds with the formula C21H15N3O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 50 of 50 compounds
![3-Phenyl-2-[(E)-2-pyridin-2-ylethenyl]quinazolin-4-one chemical structure, C21H15N3O, CAS 1399983-58-4](/s/ZFEZSJMAONMYBM-BUHFOSPRSA-N.svg)
![3-Phenyl-2-[(E)-2-(pyridin-3-yl)ethenyl]quinazolin-4(3H)-one chemical structure, C21H15N3O, CAS 1237744-56-7](/s/DLFPOODQJJMTHD-OUKQBFOZSA-N.svg)
![Phenol, 4-[2,2':6',2''-terpyridin]-4'-yl- chemical structure, C21H15N3O, CAS 89972-79-2](/s/MVGFLLZPRCSFIY-UHFFFAOYSA-N.svg)
![1-(2-Methoxynaphthalen-1-yl)-[1,2,4]triazolo[4,3-a]quinoline chemical structure, C21H15N3O, CAS 312525-92-1](/s/MKRQGIHLVHYBME-UHFFFAOYSA-N.svg)
![(1S,3aR)-1-(Phenylcarbonyl)-1,2-dihydropyrrolo[1,2-a]quinoline-3,3(3aH)-dicarbonitrile chemical structure, C21H15N3O, CAS 308289-60-3](/s/IXXATASUTOLNRM-RBUKOAKNSA-N.svg)
![N-[(E)-Anthracen-9-ylmethylideneamino]pyridine-3-carboxamide chemical structure, C21H15N3O, CAS 1225385-92-1](/s/HNGMCZQRNYTXMT-OEAKJJBVSA-N.svg)
- 3-([2,2':6',2''-Terpyridin]-4'-yl)phenol101003-66-1C21H15N3O
- 5-{[(Naphthalen-1-yl)methyl]amino}-2-phenyl-1,3-oxazole-4-carbonitrile1955499-65-6C21H15N3O
- N-(3-Phenyl-1,8-naphthyridin-2-yl)benzamide1021037-54-6C21H15N3O
- (R)-2-(1,10-Phenanthrolin-2-yl)-4-phenyl-4,5-dihydrooxazole284483-10-9C21H15N3O
- 4-(4,6-Diphenyl-1,3,5-triazin-2-yl)phenol7753-02-8C21H15N3O
- 5-Cyano-7-(3-methoxyphenyl)-1-phenylbenzimidazole851229-82-8C21H15N3O
- 5-Cyano-7-(4-methoxyphenyl)-1-phenylbenzimidazole851229-80-6C21H15N3O
- 5-Cyano-7-(3-hydroxymethylphenyl)-1-phenylbenzimidazole851229-65-7C21H15N3O
- (1-Biphenyl-3-yl-1H-imidazol-4-yl)-pyridin-2-yl-methanone934692-24-7C21H15N3O
- 4,4'-{[(4-Hydroxyphenyl)methyl]azanediyl}dibenzonitrile319016-08-5C21H15N3O
- 5-Cyano-7-(4-hydroxymethylphenyl)-1-phenylbenzimidazole851230-13-2C21H15N3O
- 2-Oxo-3,5,6-triphenyl-1,2lambda~5~,4-triazine745-45-9C21H15N3O
- 1-Oxo-3,5,6-triphenyl-1lambda~5~,2,4-triazine745-28-8C21H15N3O
- 6-Phenyl-5H-quinazolino[4,3-b]quinazolin-8(6H)-one73565-06-7C21H15N3O
- Isoxazole, 3,5-diphenyl-4-(phenylazo)-63296-54-8C21H15N3O
- 1,8-Naphthyridine-3-carboxamide, N,2-diphenyl-176314-62-8C21H15N3O
- 1-Phenyl-2-(5-phenylpyrido[2,3-d]pyridazin-8-yl)ethanone87988-08-7C21H15N3O
- 5-Methoxy-7-phenyl-3-[2-(4-pyridinyl)ethynyl]imidazo[1,2-a]pyridine1207839-60-8C21H15N3O
- 4-(6-Methoxy-1-phenyl-1H-benzimidazol-2-yl)benzonitrile807610-03-3C21H15N3O
- 2-(2,3-Dihydro-3-methyl-2-oxo-1-phenyl-1H-benzimidazol-5-yl)benzonitrile1359760-22-7C21H15N3O
- 2-Phenoxy-4,6-diphenyl-1,3,5-triazine2039-31-8C21H15N3O
- 4-(2,5-Diphenyl-2H-1,2,3-triazol-4-yl)benzaldehyde61310-00-7C21H15N3O
- 5-(9H-Fluoren-9-yl)-N-phenyl-1,3,4-oxadiazol-2-amine63194-02-5C21H15N3O
- 1-[5-[2-(4-Methoxyphenyl)ethynyl]-2-pyridinyl]pyrrolo[2,3-c]pyridine1841079-47-7C21H15N3O
- 1-[5-[2-(3-Methoxyphenyl)ethynyl]-2-pyridinyl]pyrrolo[2,3-c]pyridine1841079-46-6C21H15N3O
- 3-(4,6-Diphenyl-1,3,5-triazin-2-yl)phenol2245128-70-3C21H15N3O
Frequently asked questions
What is the molar mass of C21H15N3O?
The molar mass of C21H15N3O is 325.37 g/mol, calculated from standard atomic weights for 21 carbon atoms, 15 hydrogen atoms, 3 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 325.1215 Da.
How many compounds have the formula C21H15N3O?
CompoundList lists 50 compounds with the molecular formula C21H15N3O, including 6-Cyano-5-methoxy-12-methylindolo(2,3-A)carbazole, 2-Phenyl-N-(pyridin-4-yl)quinoline-4-carboxamide, 3-Phenyl-2-[(E)-2-pyridin-2-ylethenyl]quinazolin-4-one. 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 C21H15N3O?
C21H15N3O has a degree of unsaturation of 16. 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.