Molecular formula
C21H19N5O
88 compounds have this formula on CompoundList.
- Molar mass
- 357.42g/mol
- Monoisotopic mass
- 357.1590Da
- Atoms
- 46
- Elements
- 4
- Rings plus double bonds
- 15
The formula C21H19N5O describes a molecule made of 21 carbon atoms, 19 hydrogen atoms, 5 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 × 2170.57%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 195.36%1.008 × 19 = 19.152 g/mol
- N Nitrogen × 519.59%14.007 × 5 = 70.035 g/mol
- O Oxygen × 14.48%15.999 × 1 = 15.999 g/mol
Look up another formula
Compounds with the formula C21H19N5O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 88 of 88 compounds
![3-((4-(6,7,8,9-Tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepin-3-yl)phenyl)imino)indolin-2-one chemical structure, C21H19N5O, CAS 457096-41-2](/s/YRNUBJOVHKXWJS-UHFFFAOYSA-N.svg)
3-((4-(6,7,8,9-Tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepin-3-yl)phenyl)imino)indolin-2-one
CAS 457096-41-2C21H19N5O
3-(1H-1,2,3-Benzotriazol-1-yl)-N'-(1-(2-naphthyl)ethylidene)propanohydrazide
CAS 384849-26-7C21H19N5O
![N-[4-({5-Methyl-3-phenylpyrazolo[1,5-A]pyrimidin-7-YL}amino)phenyl]acetamide chemical structure, C21H19N5O, CAS 877791-17-8](/s/GHNCJSSDMRVPFK-UHFFFAOYSA-N.svg)
N-[4-({5-Methyl-3-phenylpyrazolo[1,5-A]pyrimidin-7-YL}amino)phenyl]acetamide
CAS 877791-17-8C21H19N5O
![4-({2,5-Dimethyl-3-phenylpyrazolo[1,5-a]pyrimidin-7-yl}amino)benzamide chemical structure, C21H19N5O, CAS 946259-77-4](/s/OPNCPTDVBBNUFA-UHFFFAOYSA-N.svg)
4-({2,5-Dimethyl-3-phenylpyrazolo[1,5-a]pyrimidin-7-yl}amino)benzamide
CAS 946259-77-4C21H19N5O
![6-Methyl-N-[(1-methylpyrazol-4-yl)methyl]-2-pyridin-2-ylquinoline-4-carboxamide chemical structure, C21H19N5O, CAS 901609-22-1](/s/URWPJQRIJZQVNK-UHFFFAOYSA-N.svg)
6-Methyl-N-[(1-methylpyrazol-4-yl)methyl]-2-pyridin-2-ylquinoline-4-carboxamide
CAS 901609-22-1C21H19N5O
![2-Amino-1-benzyl-N-cyclopropyl-1H-pyrrolo[2,3-b]quinoxaline-3-carboxamide chemical structure, C21H19N5O, CAS 488714-86-9](/s/PCOKQEYRMBDNOD-UHFFFAOYSA-N.svg)
2-Amino-1-benzyl-N-cyclopropyl-1H-pyrrolo[2,3-b]quinoxaline-3-carboxamide
CAS 488714-86-9C21H19N5O
![3-[5-(Morpholin-4-ylmethyl)-1H-indol-2-yl]-1H-indazole-6-carbonitrile chemical structure, C21H19N5O, CAS 905997-68-4](/s/QJRKDESSUVYBDT-UHFFFAOYSA-N.svg)
3-[5-(Morpholin-4-ylmethyl)-1H-indol-2-yl]-1H-indazole-6-carbonitrile
CAS 905997-68-4C21H19N5O
![6-Phenyl-2-[(4,6,8-trimethyl-2-quinazolinyl)amino]-4-pyrimidinol chemical structure, C21H19N5O, CAS 336176-67-1](/s/JIGWMNRWIILAAP-UHFFFAOYSA-N.svg)
6-Phenyl-2-[(4,6,8-trimethyl-2-quinazolinyl)amino]-4-pyrimidinol
CAS 336176-67-1C21H19N5O
![3-{[7-Methyl-3-(pyrrolidine-1-carbonyl)-1,8-naphthyridin-4-yl]amino}benzonitrile chemical structure, C21H19N5O, CAS 1251702-68-7](/s/GRRVECBCAFUFLS-UHFFFAOYSA-N.svg)
3-{[7-Methyl-3-(pyrrolidine-1-carbonyl)-1,8-naphthyridin-4-yl]amino}benzonitrile
CAS 1251702-68-7C21H19N5O
4-(2-(4-Morpholinophenylamino)pyrimidin-4-yl)benzonitrile
CAS 945749-74-6C21H19N5O
Pimpc
CAS 2250244-44-9C21H19N5O
![1-Isopropyl-6-phenyl-N-(pyridin-2-yl)-1H-pyrazolo[3,4-b]pyridine-4-carboxamide chemical structure, C21H19N5O, CAS 1325107-93-4](/s/YTYZRDWSXAIHLN-UHFFFAOYSA-N.svg)
1-Isopropyl-6-phenyl-N-(pyridin-2-yl)-1H-pyrazolo[3,4-b]pyridine-4-carboxamide
CAS 1325107-93-4C21H19N5O
6-Methoxy-4-methyl-N-(4-methyl-6-phenylpyrimidin-2-yl)quinazolin-2-amine
CAS 351225-64-4C21H19N5O
![(E)-5-Methyl-N-phenyl-7-styryl-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxamide chemical structure, C21H19N5O, CAS 725218-32-6](/s/OOYLGBQFZOFCPY-OUKQBFOZSA-N.svg)
(E)-5-Methyl-N-phenyl-7-styryl-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxamide
CAS 725218-32-6C21H19N5O
![6-Phenyl-2-[(4,6,7-trimethylquinazolin-2-yl)amino]pyrimidin-4-ol chemical structure, C21H19N5O, CAS 336176-59-1](/s/JHLNYNWRBVBDHC-UHFFFAOYSA-N.svg)
6-Phenyl-2-[(4,6,7-trimethylquinazolin-2-yl)amino]pyrimidin-4-ol
CAS 336176-59-1C21H19N5O
![3-(Biphenyl-4-yl)-2-[(4,6-dimethylpyrimidin-2-yl)amino]-3,5-dihydro-4H-imidazol-4-one chemical structure, C21H19N5O, CAS 309291-46-1](/s/VWJGFQMQBLCINT-UHFFFAOYSA-N.svg)
3-(Biphenyl-4-yl)-2-[(4,6-dimethylpyrimidin-2-yl)amino]-3,5-dihydro-4H-imidazol-4-one
CAS 309291-46-1C21H19N5O
![N-[2-(1H-Imidazol-1-yl)-1-phenylethyl]-3-(1H-pyrazol-1-yl)benzamide chemical structure, C21H19N5O, CAS 1394591-79-7](/s/XOPJDZYCKZQCOE-UHFFFAOYSA-N.svg)
N-[2-(1H-Imidazol-1-yl)-1-phenylethyl]-3-(1H-pyrazol-1-yl)benzamide
CAS 1394591-79-7C21H19N5O
![7-[1,1'-Biphenyl]-4-yl-2-morpholino[1,2,4]triazolo[1,5-a]pyrimidine chemical structure, C21H19N5O, CAS 320415-89-2](/s/DTMCVJKFRSZLKZ-UHFFFAOYSA-N.svg)
7-[1,1'-Biphenyl]-4-yl-2-morpholino[1,2,4]triazolo[1,5-a]pyrimidine
CAS 320415-89-2C21H19N5O
![2-Methyl-6-phenyl-9-(pyridin-3-yl)-5,6,7,9-tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8-ol chemical structure, C21H19N5O, CAS 879617-68-2](/s/NAWGZFHMSGCODW-UHFFFAOYSA-N.svg)
2-Methyl-6-phenyl-9-(pyridin-3-yl)-5,6,7,9-tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8-ol
CAS 879617-68-2C21H19N5O
![5-Benzoyl-2-[4-(2-pyridinyl)piperazino]-1H-pyrrole-3-carbonitrile chemical structure, C21H19N5O, CAS 339010-28-5](/s/HFYJLGRCXIJVDG-UHFFFAOYSA-N.svg)
5-Benzoyl-2-[4-(2-pyridinyl)piperazino]-1H-pyrrole-3-carbonitrile
CAS 339010-28-5C21H19N5O
![1-Phenyl-N-{3-[(1-phenyl-1H-tetrazol-5-yl)oxy]benzyl}methanamine chemical structure, C21H19N5O, CAS 932155-13-0](/s/JUDNMZRAMOHVEC-UHFFFAOYSA-N.svg)
1-Phenyl-N-{3-[(1-phenyl-1H-tetrazol-5-yl)oxy]benzyl}methanamine
CAS 932155-13-0C21H19N5O
3-(3-Methylphenyl)-N-1-naphthyl-2-(2H-tetrazol-5-yl)propanamide
CAS 483994-01-0C21H19N5O
![6-(4-Methylphenyl)-9-(pyridin-3-yl)-5,6,7,9-tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8-ol chemical structure, C21H19N5O, CAS 727394-09-4](/s/YXDRGWOHEHDGDY-UHFFFAOYSA-N.svg)
6-(4-Methylphenyl)-9-(pyridin-3-yl)-5,6,7,9-tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8-ol
CAS 727394-09-4C21H19N5O
3-(2-(4-Morpholinophenylamino)pyrimidin-4-yl)benzonitrile
CAS 1056634-74-2C21H19N5O
- 1-(2,5-Dimethylphenyl)-3-(4-(imidazo[1,2-a]pyrimidin-2-yl)phenyl)urea931355-77-0C21H19N5O
- (E)-3-Methyl-4-((2-(4-methylquinolin-2-yl)hydrazono)methyl)-1-phenyl-1H-pyrazol-5-ol304683-42-9C21H19N5O
- 2-Amino-N-benzyl-1-(prop-2-en-1-yl)-1H-pyrrolo[2,3-b]quinoxaline-3-carboxamide375834-75-6C21H19N5O
- 9-(Pyridin-3-yl)-2-(p-tolyl)-5,6,7,9-tetrahydro-[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one539839-88-8C21H19N5O
- 4-Phenyl-N-[3-([1,2,4]triazolo[4,3-b]pyridazin-6-yl)phenyl]butanamide891113-66-9C21H19N5O
- (3-(1H-Benzo[d]imidazol-2-yl)azetidin-1-yl)(5-methyl-1-phenyl-1H-pyrazol-4-yl)methanone1334370-13-6C21H19N5O
- N-[2-(1H-Indol-3-yl)ethyl]-3-(2-pyrimidinylamino)benzamide1435983-72-4C21H19N5O
- 2-(1H-Indol-3-yl)-N-{4-[(6-methylpyridazin-3-yl)amino]phenyl}acetamide1203015-31-9C21H19N5O
- N-(2-(3,4,5-Trimethyl-1H-pyrazol-1-yl)pyrimidin-5-yl)-1-naphthamide1421457-25-1C21H19N5O
- 4-Methyl-11-[4-(1H-pyrrol-1-yl)benzoyl]-2,3,7,11-tetraazatricyclo[7.4.0.0^{2,6}]trideca-1(9),3,5,7-tetraene1796958-67-2C21H19N5O
- 2-(1H-Indol-1-yl)-1-(3-(4-phenyl-1H-1,2,3-triazol-1-yl)azetidin-1-yl)ethanone2034291-84-2C21H19N5O
- N-Cyclopropyl-3-(1-imidazo[1,2-a]pyridin-3-yl-1H-imidazol-4-yl)-4-methyl-benzamide2205040-65-7C21H19N5O
- 5-Amino-4-(1H-benzimidazol-2-yl)-1-[2-(1H-indol-3-yl)ethyl]-1,2-dihydro-3H-pyrrol-3-one213251-01-5C21H19N5O
- N-[1-(1H-1,2,3-Benzotriazol-1-yl)-3-phenylpropyl]pyridine-4-carboxamide301169-22-2C21H19N5O
- 1,3-Dimethyl-6-phenyl-N-(pyridin-3-ylmethyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxamide1090358-96-5C21H19N5O
- 1-[2-[4-(2-Pyridinylamino)phenoxy]-3-pyridinyl]-3-pyrrolidinecarbonitrile1231920-88-9C21H19N5O
- 3-[5-[2-(6-Amino-3-pyridinyl)ethynyl]-6-ethyl-4-pyrimidinyl]-N-methylbenzamide1321606-80-7C21H19N5O
- N-[2-(1H-Indol-1-yl)ethyl]-4-(pyrimidin-2-ylamino)benzamide1401592-19-5C21H19N5O
- 4-((4,6-Dimethylpyrimidin-2-yl)amino)-N-(1H-indol-4-yl)benzamide1435982-26-5C21H19N5O
- 4-((4,6-Dimethylpyrimidin-2-yl)amino)-N-(1H-indol-6-yl)benzamide1435900-80-3C21H19N5O
- N-(2-((6-(1H-Pyrrol-1-yl)pyridazin-3-yl)amino)ethyl)-1-naphthamide1396810-29-9C21H19N5O
- N-(2-((6-(1H-Pyrrol-1-yl)pyrimidin-4-yl)amino)ethyl)-1-naphthamide1396816-11-7C21H19N5O
- 3-[(4,6-Dimethylpyrimidin-2-yl)amino]-N-(1H-indol-4-yl)benzamide1574529-65-9C21H19N5O
- (1H-Benzo[d]imidazol-5-yl)(4-(1-methyl-1H-pyrazol-4-yl)-3,4-dihydroisoquinolin-2(1H)-yl)methanone2034566-53-3C21H19N5O
- N-Cyclopropyl-3-(1-imidazo[1,2-a]pyridin-3-yl-1H-pyrazol-4-yl)-4-methylbenzamide2205040-64-6C21H19N5O
- 3-(3,4-Dimethylphenyl)-6-[(E)-3-phenylprop-2-enyl]triazolo[4,5-d]pyrimidin-7-one887223-27-0C21H19N5O
- N-[[1-(3,4-Dimethylphenyl)tetrazol-5-yl]methyl]naphthalene-1-carboxamide897622-42-3C21H19N5O
- N-[[1-(3,4-Dimethylphenyl)tetrazol-5-yl]methyl]naphthalene-2-carboxamide897622-43-4C21H19N5O
- 4,7-Dimethyl-N-(2-methylphenyl)-8-phenylpyrazolo[5,1-c][1,2,4]triazine-3-carboxamide879615-09-5C21H19N5O
- 3-[(4,6-Dimethylpyrimidin-2-yl)amino]-2-(4-methylphenyl)quinazolin-4(3H)-one878993-82-9C21H19N5O
- 1,3-Dimethyl-6-phenyl-N-(pyridin-4-ylmethyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxamide1324069-94-4C21H19N5O
- N4-[3-Methyl-4-[(6-methyl-3-pyridinyl)oxy]phenyl]-4,6-quinazolinediamine897025-74-0C21H19N5O
- 2-(1H-Indol-3-yl)-1-(3-(4-phenyl-1H-1,2,3-triazol-1-yl)azetidin-1-yl)ethanone2034311-50-5C21H19N5O
- N-[1-Phenyl-2-(2H-1,2,3-triazol-2-yl)ethyl]-4-(1H-pyrrol-1-yl)benzamide2034548-30-4C21H19N5O
- 2-(4-Morpholinyl)-4-phenyl-8-(1H-pyrazol-3-yl)-1,7-naphthyridine1876466-71-5C21H19N5O
- 2-(Naphthalen-1-yl)-N-(2-(3-(pyrazin-2-yl)-1H-pyrazol-1-yl)ethyl)acetamide2034548-64-4C21H19N5O
- N-((1-Methyl-3-(pyrazin-2-yl)-1H-pyrazol-5-yl)methyl)-2-(naphthalen-1-yl)acetamide2034602-85-0C21H19N5O
- N-((3-(1-Methyl-1H-pyrazol-4-yl)pyrazin-2-yl)methyl)-2-(naphthalen-1-yl)acetamide2034230-28-7C21H19N5O
- N-{[6-(1-Methyl-1H-pyrazol-4-yl)pyridin-3-yl]methyl}-4-(1H-pyrrol-1-yl)benzamide2097864-59-8C21H19N5O
- 2-Benzyl-7-(furan-2-ylmethyl)-8,9-dimethyl-7H-pyrrolo[3,2-e][1,2,4]triazolo[1,5-c]pyrimidine903864-05-1C21H19N5O
- 4-((3-Amino-2H-indazol-2-yl)methyl)-N-(2-aminophenyl)benzamide920315-49-7C21H19N5O
- 4-((5-Amino-1H-indazol-1-yl)methyl)-N-(2-aminophenyl)benzamide920314-32-5C21H19N5O
- 1,3-Dimethyl-6-phenyl-N-(pyridin-2-ylmethyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxamide1324064-15-4C21H19N5O
- N-(2-Aminophenyl)-4-{[(1H-indazol-3-yl)amino]methyl}benzamide920314-81-4C21H19N5O
- 4-((3-Amino-1H-indazol-1-yl)methyl)-N-(2-aminophenyl)benzamide920315-57-7C21H19N5O
- 1-Benzhydryl-3-(2-methylpyrazolo[1,5-a]pyrimidin-6-yl)urea1788532-52-4C21H19N5O
- N-[4-(2-Amino[1,2,4]triazolo[1,5-a]pyridin-6-yl)phenyl]-2-phenylpropanamide1443763-86-7C21H19N5O
- 2-(1-Methyl-1H-indol-3-yl)-N-{[3-(pyridin-3-yl)pyrazin-2-yl]methyl}acetamide2097895-84-4C21H19N5O
- 5-Methyl-2-(4-(((1-methyl-4-(pyridin-4-yl)-1H-pyrazol-3-yl)oxy)methyl)phenyl)pyrimidine1401809-86-6C21H19N5O
- 3-[(1H-Benzimidazol-2-yl)amino]-N-[2-(pyridin-2-yl)ethyl]benzamide917763-87-2C21H19N5O
- (E)-2-Cyano-N-(2,6-dimethylphenyl)-3-(1-methyl-3-pyridin-3-ylpyrazol-4-yl)prop-2-enamide1424636-05-4C21H19N5O
- (R)-2-((5-(3-Methyl-1H-indazol-5-yl)pyridin-3-yl)amino)-2-phenylacetamide1613639-20-5C21H19N5O
- 4-(4-(5-(Pyridin-3-yl)-1H-indazol-3-yl)pyridin-2-yl)morpholine1627191-06-3C21H19N5O
- 6-[4-(6-Oxo-3-phenyl-1,6-dihydropyridazin-1-yl)piperidin-1-yl]pyridine-3-carbonitrile2380033-65-6C21H19N5O
- 2-[4-(6-Oxo-3-phenyl-1,6-dihydropyridazin-1-yl)piperidin-1-yl]pyridine-4-carbonitrile2380033-37-2C21H19N5O
- 6-[4-(6-Oxo-3-phenyl-1,6-dihydropyridazin-1-yl)piperidin-1-yl]pyridine-2-carbonitrile2379975-30-9C21H19N5O
- 2-[4-(6-Oxo-3-phenyl-1,6-dihydropyridazin-1-yl)piperidin-1-yl]pyridine-3-carbonitrile2379987-13-8C21H19N5O
- N-[1-(3-Cyanopyrazin-2-yl)azetidin-3-yl]-N-methyl-2-(naphthalen-1-yl)acetamide2380190-86-1C21H19N5O
- 2-Methyl-1-{1-[3-(1H-pyrazol-1-yl)benzoyl]azetidin-3-yl}-1H-1,3-benzodiazole2380178-24-3C21H19N5O
- 2-(Azetidin-1-ylmethyl)-6-[[5-(1H-pyrazol-5-yl)-2-pyridinyl]oxy]quinoline1541184-77-3C21H19N5O
- 5-(3-{[(6-Phenylpyridazin-3-yl)oxy]methyl}pyrrolidin-1-yl)pyridine-2-carbonitrile2549028-68-2C21H19N5O
- 3-(3-{[(6-Phenylpyridazin-3-yl)oxy]methyl}pyrrolidin-1-yl)pyridine-2-carbonitrile2549028-97-7C21H19N5O
- 2-(1-{Pyrazolo[1,5-a]pyridine-3-carbonyl}piperidin-4-yl)-1,8-naphthyridine2640950-49-6C21H19N5O
- Pyrazolo[1,5-a]pyrimidine-3-carboxamide, N-[4-(dimethylamino)phenyl]-7-phenyl-1626966-77-5C21H19N5O
Frequently asked questions
What is the molar mass of C21H19N5O?
The molar mass of C21H19N5O is 357.42 g/mol, calculated from standard atomic weights for 21 carbon atoms, 19 hydrogen atoms, 5 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 357.1590 Da.
How many compounds have the formula C21H19N5O?
CompoundList lists 88 compounds with the molecular formula C21H19N5O, including 3-((4-(6,7,8,9-Tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepin-3-yl)phenyl)imino)indolin-2-one, 3-(1H-1,2,3-Benzotriazol-1-yl)-N'-(1-(2-naphthyl)ethylidene)propanohydrazide, N-[4-({5-Methyl-3-phenylpyrazolo[1,5-A]pyrimidin-7-YL}amino)phenyl]acetamide. 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 C21H19N5O?
C21H19N5O 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.