Molecular formula
C21H19N3O
101 compounds have this formula on CompoundList.
- Molar mass
- 329.40g/mol
- Monoisotopic mass
- 329.1528Da
- Atoms
- 44
- Elements
- 4
- Rings plus double bonds
- 14
The formula C21H19N3O describes a molecule made of 21 carbon atoms, 19 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 × 2176.57%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 195.81%1.008 × 19 = 19.152 g/mol
- N Nitrogen × 312.76%14.007 × 3 = 42.021 g/mol
- O Oxygen × 14.86%15.999 × 1 = 15.999 g/mol
Look up another formula
Compounds with the formula C21H19N3O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 101 compounds
L-Tryptophan beta-naphthylamide
CAS 3326-63-4C21H19N3O
![3-Ethyl-2-[(E)-2-(2-methyl-1H-indol-3-yl)ethenyl]quinazolin-4-one chemical structure, C21H19N3O, CAS 1164469-19-5](/s/IOWRYAAXGNIWOH-OUKQBFOZSA-N.svg)
3-Ethyl-2-[(E)-2-(2-methyl-1H-indol-3-yl)ethenyl]quinazolin-4-one
CAS 1164469-19-5C21H19N3O
![6-Benzyl-2,5-dimethyl-3-phenylpyrazolo[1,5-a]pyrimidin-7(4H)-one chemical structure, C21H19N3O, CAS 331434-03-8](/s/DTNGWNFMTOHTPY-UHFFFAOYSA-N.svg)
6-Benzyl-2,5-dimethyl-3-phenylpyrazolo[1,5-a]pyrimidin-7(4H)-one
CAS 331434-03-8C21H19N3O
5-Methoxy-1,3,4-triphenyl-4,5-dihydro-1H-1,2,4-triazole
CAS 154643-41-1C21H19N3O
![N'-[1-(3-Aminophenyl)ethylidene]-4-biphenylcarbohydrazide chemical structure, C21H19N3O, CAS 316133-27-4](/s/ROOSDNAXRADJFF-HZHRSRAPSA-N.svg)
N'-[1-(3-Aminophenyl)ethylidene]-4-biphenylcarbohydrazide
CAS 316133-27-4C21H19N3O
![2-(1-Naphthyl)-3-phenyltetrahydro-1H,5H-pyrazolo[1,2-a][1,2,4]triazol-1-one chemical structure, C21H19N3O, CAS 329350-88-1](/s/IRDJPCKOSDLCKU-UHFFFAOYSA-N.svg)
2-(1-Naphthyl)-3-phenyltetrahydro-1H,5H-pyrazolo[1,2-a][1,2,4]triazol-1-one
CAS 329350-88-1C21H19N3O
N-(1,3-Diphenylpropan-2-ylideneamino)pyridine-4-carboxamide
CAS 356075-39-3C21H19N3O
![6-Ethyl-5-methyl-2,3-diphenylpyrazolo[1,5-a]pyrimidin-7-ol chemical structure, C21H19N3O, CAS 903860-65-1](/s/DWFMVJVQLRMACU-UHFFFAOYSA-N.svg)
6-Ethyl-5-methyl-2,3-diphenylpyrazolo[1,5-a]pyrimidin-7-ol
CAS 903860-65-1C21H19N3O
5-(1-Benzyl-5,6-dimethyl-1H-1,3-benzimidazol-2-yl)-2(1H)-pyridinone
CAS 860787-82-2C21H19N3O
N-(1-Benzyl-3-cyano-4,5-dimethyl-1H-pyrrol-2-yl)benzenecarboxamide
CAS 478032-89-2C21H19N3O
2-(2-(Diphenylmethylene)hydrazino)-2-phenylacetamide
CAS 33555-66-7C21H19N3O
![2-[(E)-2-(1,2-Dimethylindol-3-yl)ethenyl]-3-methylquinazolin-4-one chemical structure, C21H19N3O, CAS 337494-56-1](/s/IGJSPTMMMVCANJ-OUKQBFOZSA-N.svg)
2-[(E)-2-(1,2-Dimethylindol-3-yl)ethenyl]-3-methylquinazolin-4-one
CAS 337494-56-1C21H19N3O
![2-Ethyl-7-(2-methoxyphenyl)-3-phenylpyrazolo[1,5-a]pyrimidine chemical structure, C21H19N3O, CAS 895361-70-3](/s/ALIBOESZWJPLIA-UHFFFAOYSA-N.svg)
2-Ethyl-7-(2-methoxyphenyl)-3-phenylpyrazolo[1,5-a]pyrimidine
CAS 895361-70-3C21H19N3O
![2-Methyl-3-[2-(naphthalen-1-ylamino)ethyl]quinazolin-4-one chemical structure, C21H19N3O, CAS 333775-40-9](/s/XHYUKFFAXHHTPV-UHFFFAOYSA-N.svg)
2-Methyl-3-[2-(naphthalen-1-ylamino)ethyl]quinazolin-4-one
CAS 333775-40-9C21H19N3O
2-(Benzylamino)-7-phenyl-7,8-dihydroquinazolin-5(6H)-one
CAS 523992-01-0C21H19N3O
![2-[(2-Methyl-1H-indol-3-yl)(pyridin-2-ylamino)methyl]phenol chemical structure, C21H19N3O, CAS 315697-43-9](/s/FKAHSBXKXQRRCW-UHFFFAOYSA-N.svg)
2-[(2-Methyl-1H-indol-3-yl)(pyridin-2-ylamino)methyl]phenol
CAS 315697-43-9C21H19N3O
3-Cyano-N-(4-(3,4-dihydroisoquinolin-2(1H)-yl)but-2-yn-1-yl)benzamide
CAS 1351607-95-8C21H19N3O
![N-(2-(7-Methylimidazo[1,2-a]pyridin-2-yl)ethyl)-1-naphthamide chemical structure, C21H19N3O, CAS 868978-04-5](/s/GLFDJNCSUIZXDL-UHFFFAOYSA-N.svg)
N-(2-(7-Methylimidazo[1,2-a]pyridin-2-yl)ethyl)-1-naphthamide
CAS 868978-04-5C21H19N3O
6-(4-(2-(Benzylamino)ethyl)phenoxy)nicotinonitrile
CAS 676496-26-7C21H19N3O
N-(2-Furanylmethyl)-N-methyl-2-(2-methylphenyl)-4-quinazolinamine
CAS 959551-11-2C21H19N3O
![21-Prop-2-enyl-3,13,21-triazapentacyclo[11.8.0.02,10.04,9.015,20]henicosa-2(10),4,6,8,15,17,19-heptaen-14-one chemical structure, C21H19N3O, CAS 2247047-81-8](/s/DRJUVYNMMLBUKD-UHFFFAOYSA-N.svg)
21-Prop-2-enyl-3,13,21-triazapentacyclo[11.8.0.02,10.04,9.015,20]henicosa-2(10),4,6,8,15,17,19-heptaen-14-one
CAS 2247047-81-8C21H19N3O
N-(4,6-Diphenylpyrimidin-2-yl)cyclobutanecarboxamide
CAS 820961-73-7C21H19N3O
N-(2,6-Diphenylpyrimidin-4-yl)cyclobutanecarboxamide
CAS 820961-51-1C21H19N3O
2-((2E,4E)-5-(6-((2-Hydroxyethyl)(methyl)amino)naphthalen-2-yl)penta-2,4-dien-1-ylidene)malononitrile
CAS 1638151-61-7C21H19N3O
- 6-Benzyl-5-methyl-2-(4-methylphenyl)pyrazolo[1,5-a]pyrimidin-7(4H)-one309938-91-8C21H19N3O
- 1-Naphthalenecarboxamide, N-((4,5-dihydro-1H-imidazol-2-yl)methyl)-N-phenyl-32421-56-0C21H19N3O
- 2-[(4-Methylphenyl)amino]-7-phenyl-7,8-dihydroquinazolin-5(6H)-one669724-44-1C21H19N3O
- 12-(2-Methylphenyl)-3,4,5,12-tetrahydrobenzimidazo[2,1-b]quinazolin-1(2H)-one669718-24-5C21H19N3O
- 1-Benzyl-4-(1-prop-2-ynylbenzimidazol-2-yl)pyrrolidin-2-one847396-67-2C21H19N3O
- N'-[1-(4-Aminophenyl)ethylidene]-4-biphenylcarbohydrazide316133-45-6C21H19N3O
- 1-(3-Methylphenyl)-4-(1-prop-2-ynylbenzimidazol-2-yl)pyrrolidin-2-one912902-45-5C21H19N3O
- 2-[(3-Methylphenyl)amino]-7-phenyl-7,8-dihydroquinazolin-5(6H)-one713127-05-0C21H19N3O
- 12-(4-Methylphenyl)-3,4,5,12-tetrahydrobenzimidazo[2,1-b]quinazolin-1(2H)-one669718-27-8C21H19N3O
- 1-(2-Methylphenyl)-4-[1-(prop-2-yn-1-yl)-1H-1,3-benzodiazol-2-yl]pyrrolidin-2-one890634-27-2C21H19N3O
- 1-(4-Methylphenyl)-4-(1-prop-2-ynylbenzimidazol-2-yl)pyrrolidin-2-one912903-66-3C21H19N3O
- 2-Amino-6-(3,4-dimethylphenyl)-4-(4-methoxyphenyl)nicotinonitrile91923-45-4C21H19N3O
- N-{2-Methyl-4-[(2-methylphenyl)diazenyl]phenyl}benzamide293765-30-7C21H19N3O
- 2-Anilino-4-methyl-7-phenyl-7,8-dihydroquinazolin-5(6H)-one925641-20-9C21H19N3O
- 4-(Cyclohexylamino)-7H-benzo(e)perimidin-7-one94109-22-5C21H19N3O
- 2,2-Diphenyl-N-[(Z)-1-pyridin-2-ylethylideneamino]acetamide977-68-4C21H19N3O
- (2E)-2-Cyano-3-(1H-indol-3-yl)-N-(2,4,6-trimethylphenyl)prop-2-enamide501109-51-9C21H19N3O
- 9H-Pyrido(3,4-b)indole, 1-methyl-3-(4-methylbenzamidomethyl)-63885-66-5C21H19N3O
- 1'-(Prop-2-en-1-yl)-2,3,4,9-tetrahydrospiro[beta-carboline-1,3'-indol]-2'(1'H)-one919732-51-7C21H19N3O
- 5-Benzyl-2-(3,4-dimethylphenyl)-4H,5H-pyrazolo[1,5-a]pyrazin-4-one1040673-42-4C21H19N3O
- 6H-Pyrrolo(3,4-d)pyrimidin-2(1H)-one, 4,7-diphenyl-1-ethyl-5-methyl-57436-12-1C21H19N3O
- 6H-Pyrrolo(3,4-d)pyrimidin-2(1H)-one, 4,7-diphenyl-6-ethyl-5-methyl-57436-13-2C21H19N3O
- 4'-[(6-Oxo-4-propyl-1,6-dihydropyrimidin-5-yl)methyl]biphenyl-2-carbonitrile141310-56-7C21H19N3O
- 6-(Cyclohexylamino)-7H-benzo[e]perimidin-7-one162658-41-5C21H19N3O
- 6-[(2-Methylphenyl)methyl]-1-[(pyridin-3-yl)methyl]-1H,6H,7H-pyrrolo[2,3-c]pyridin-7-one1340902-99-9C21H19N3O
- 2-(1H-Indol-1-yl)-1-(1,3,4,5-tetrahydro-2H-pyrido[4,3-b]indol-2-yl)ethanone1351682-99-9C21H19N3O
- 2-(1H-Indol-3-yl)-1-(1,3,4,9-tetrahydro-2H-beta-carbolin-2-yl)ethanone1574338-19-4C21H19N3O
- 1-(7,8-Dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)-2,2-diphenylethanone1797184-03-2C21H19N3O
- N-(2-(2-Phenylpyrimidin-5-yl)ethyl)cinnamamide2035001-11-5C21H19N3O
- 1-Benzyl-2-((benzyloxy)methyl)-1H-imidazo[4,5-c]pyridine2206568-43-4C21H19N3O
- Naphthopyrin72017-28-8C21H19N3O
- N-(1H-Benzimidazol-2-ylmethyl)-4-(3-methylphenoxy)aniline73259-39-9C21H19N3O
- N-[2-(3,4-Dihydro-1H-isoquinolin-2-yl)-pyridin-4-yl]-benzamide524718-25-0C21H19N3O
- N-[2-(1H-Indol-3-yl)ethyl]-2-methyl-4-quinolinecarboxamide1144438-35-6C21H19N3O
- 2-{[(2,3-Dihydro-1H-inden-1-yl)(prop-2-yn-1-yl)amino]methyl}-4H-pyrido[1,2-a]pyrimidin-4-one1197550-53-0C21H19N3O
- N-[(5-Phenyl-1,3,4-oxadiazol-2-yl)methyl]-N-prop-2-ynyl-2,3-dihydro-1H-inden-1-amine1241559-25-0C21H19N3O
- (4-Benzyloxy-phenyl)-(1-methyl-1H-benzoimidazol-2-yl)-amine1227176-82-0C21H19N3O
- (1-Methyl-1H-indol-5-yl)(1,3,4,5-tetrahydro-2H-pyrido[4,3-b]indol-2-yl)methanone1351690-03-3C21H19N3O
- (1-Methyl-1H-indol-4-yl)(1,3,4,5-tetrahydro-2H-pyrido[4,3-b]indol-2-yl)methanone1351679-53-2C21H19N3O
- 2-[Cyano(phenyl)amino]-N-[1-(naphthalen-2-yl)ethyl]acetamide1394663-77-4C21H19N3O
- N-(Cyanomethyl)-2-[[naphthalen-1-yl(phenyl)methyl]amino]acetamide1436023-32-3C21H19N3O
- N-(3-(1H-Pyrrolo[2,3-b]pyridin-1-yl)propyl)-1-naphthamide1787914-26-4C21H19N3O
- N-Benzhydryl-5H-pyrrolo[3,4-b]pyridine-6(7H)-carboxamide2319723-37-8C21H19N3O
- 6-(Naphthalen-1-yl)-2-[(propan-2-yl)amino]quinazolin-7(1H)-one914396-16-0C21H19N3O
- 2-Cyano-3-(4-cyanophenyl)-N-(2,6-diethylphenyl)prop-2-enamide736148-34-8C21H19N3O
- 2-[(Biphenyl-4-yloxy)methyl]-5,7-dimethylimidazo[1,2-a]pyrimidine618399-66-9C21H19N3O
- 1-Propanone, 1-phenyl-3-[[4-(2-phenyldiazenyl)phenyl]amino]-63352-79-4C21H19N3O
- 4-(4-Diethylaminophenylimino)-1-oxo-1,4-dihydronaphthalene-2-carbonitrile119006-66-5C21H19N3O
- (E)-N-(4-(Phenyldiazenyl)phenyl)-2-(p-tolyl)acetamide1007035-70-2C21H19N3O
- 1-Benzyl-N-(cyanomethyl)-N-cyclopropylindole-3-carboxamide2418691-47-9C21H19N3O
- 3-(1H-Indol-3-yl)-N-[4-(1H-pyrrol-1-yl)phenyl]propanamide1282108-79-5C21H19N3O
- APA modulator T51293394-50-9C21H19N3O
- 6-{6-Phenyl-2-azaspiro[3.3]heptane-2-carbonyl}quinoxaline2640980-25-0C21H19N3O
- Benzenepropanamide, N-[4-(2-phenyldiazenyl)phenyl]-316146-21-1C21H19N3O
- Benzenamine, N-[(4-ethoxyphenyl)methylene]-4-(phenylazo)-, (E,E)-(9CI)37635-36-2C21H19N3O
- 2-Cyano-3-[2,5-dimethyl-1-(naphthalen-1-yl)-1H-pyrrol-3-yl]-N-methylprop-2-enamide1424752-36-2C21H19N3O
- 1(2H)-Phthalazinone, 4-[4-(2,5-dimethyl-1H-pyrrol-1-yl)phenyl]-2-methyl-827303-87-7C21H19N3O
- Pyridine, 2-[1-(2-furanylmethyl)-2-(2-phenylethyl)-1H-imidazol-4-yl]-831170-28-6C21H19N3O
- 3-(Methylamino)-1,2-diphenyl-2,3-dihydroquinazolin-4(1H)-one61573-11-3C21H19N3O
- Benzamide, N-[3-methyl-4-[2-(2-methylphenyl)diazenyl]phenyl]-886135-28-0C21H19N3O
- Benzeneacetamide, 2-methyl-N-[4-(2-phenyldiazenyl)phenyl]-1030659-85-8C21H19N3O
- 7-(3,5-Dimethylphenyl)-2-(4-methylphenyl)-7H,8H-imidazo[1,2-a]pyrazin-8-one1358315-07-7C21H19N3O
- 6-[(Azetidin-1-yl)methyl]-9-(1H-pyrrol-2-yl)benzo[h]isoquinolin-1(2H)-one919291-82-0C21H19N3O
- 3-Methyl-2-(4-(((1-methyl-1H-pyrazol-3-yl)oxy)methyl)phenyl)quinoline1401812-91-6C21H19N3O
- 2,5-Dihydro-5-(4-methoxyphenyl)-1,3-diphenyl-1H-1,2,4-triazole1457-94-9C21H19N3O
- 1,2-Diphenyl-2-hydrazonoethan-1-one O-(phenylmethyl)oxime56667-02-8C21H19N3O
- N-[2-(2-Methyl-1H-indol-3-yl)ethyl]-5-quinolinecarboxamide603975-14-0C21H19N3O
- 1-Benzyl-N-(4-methoxyphenyl)-1H-benzo[d]imidazol-2-amine160060-70-8C21H19N3O
- 6-(3,3-Dimethylbut-1-ynyl)-N-isoquinolin-5-ylpyridine-3-carboxamide852210-13-0C21H19N3O
- 4-[(E)-Phenyldiazenyl]-N-(1-phenylethyl)benzamide88683-69-6C21H19N3O
- 2-Methyl-N-{1-[(E)-(2-methylphenyl)diazenyl]naphthalen-2-yl}prop-2-enamide14473-46-2C21H19N3O
- 2,6-Di(1H-indol-3-yl)piperidin-4-one876931-43-0C21H19N3O
- 1,3-Dibenzyl-7-methoxy-1H-pyrazolo[3,4-c]pyridine918882-25-4C21H19N3O
- 3-Methyl-2-[4-[(1-methyl-1H-pyrazol-3-yl)methoxy]phenyl]quinoline1401819-65-5C21H19N3O
- 7-(1-Phenylcyclopropanecarbonyl)-6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridine2770603-76-2C21H19N3O
- 1-[(2-Methoxyphenyl)(4-methylphenyl)methyl]-1H-1,2,3-benzotriazole303756-46-9C21H19N3O
Frequently asked questions
What is the molar mass of C21H19N3O?
The molar mass of C21H19N3O is 329.40 g/mol, calculated from standard atomic weights for 21 carbon atoms, 19 hydrogen atoms, 3 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 329.1528 Da.
How many compounds have the formula C21H19N3O?
CompoundList lists 101 compounds with the molecular formula C21H19N3O, including L-Tryptophan beta-naphthylamide, 3-Ethyl-2-[(E)-2-(2-methyl-1H-indol-3-yl)ethenyl]quinazolin-4-one, 6-Benzyl-2,5-dimethyl-3-phenylpyrazolo[1,5-a]pyrimidin-7(4H)-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 C21H19N3O?
C21H19N3O has a degree of unsaturation of 14. 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.