Molecular formula
C19H21N5O
259 compounds have this formula on CompoundList.
- Molar mass
- 335.41g/mol
- Monoisotopic mass
- 335.1746Da
- Atoms
- 46
- Elements
- 4
- Rings plus double bonds
- 12
The formula C19H21N5O describes a molecule made of 19 carbon atoms, 21 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 × 1968.04%12.011 × 19 = 228.209 g/mol
- H Hydrogen × 216.31%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 520.88%14.007 × 5 = 70.035 g/mol
- O Oxygen × 14.77%15.999 × 1 = 15.999 g/mol
Look up another formula
Compounds with the formula C19H21N5O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 201 to 259 of 259 compounds
![3-Methyl-4-[(1-{pyrido[3,4-d]pyrimidin-4-yl}piperidin-4-yl)methoxy]pyridine chemical structure, C19H21N5O, CAS 2640830-17-5](/s/GXJYUBBYHACXPN-UHFFFAOYSA-N.svg)
3-Methyl-4-[(1-{pyrido[3,4-d]pyrimidin-4-yl}piperidin-4-yl)methoxy]pyridine
CAS 2640830-17-5C19H21N5O
![2-(3a-{[(4-Methylpyrimidin-2-yl)oxy]methyl}-octahydrocyclopenta[c]pyrrol-2-yl)pyridine-3-carbonitrile chemical structure, C19H21N5O, CAS 2742024-76-4](/s/FJFUMHQYMZDBQE-UHFFFAOYSA-N.svg)
2-(3a-{[(4-Methylpyrimidin-2-yl)oxy]methyl}-octahydrocyclopenta[c]pyrrol-2-yl)pyridine-3-carbonitrile
CAS 2742024-76-4C19H21N5O
![5-(3a-{[(4-Methylpyrimidin-2-yl)oxy]methyl}-octahydrocyclopenta[c]pyrrol-2-yl)pyridine-2-carbonitrile chemical structure, C19H21N5O, CAS 2741929-33-7](/s/IQCMWYVSHFCGHI-UHFFFAOYSA-N.svg)
5-(3a-{[(4-Methylpyrimidin-2-yl)oxy]methyl}-octahydrocyclopenta[c]pyrrol-2-yl)pyridine-2-carbonitrile
CAS 2741929-33-7C19H21N5O
![2-{4-[Methyl(pyridin-2-yl)amino]piperidin-1-yl}-4H-pyrido[1,2-a]pyrimidin-4-one chemical structure, C19H21N5O, CAS 2741912-87-6](/s/VWIHJEQOFGBKDP-UHFFFAOYSA-N.svg)
2-{4-[Methyl(pyridin-2-yl)amino]piperidin-1-yl}-4H-pyrido[1,2-a]pyrimidin-4-one
CAS 2741912-87-6C19H21N5O
![4-[(1-{2-Cyclopropylpyrazolo[1,5-a]pyrazin-4-yl}pyrrolidin-3-yl)oxy]-3-methylpyridine chemical structure, C19H21N5O, CAS 2742062-71-9](/s/FWRMACJMKPPDAL-UHFFFAOYSA-N.svg)
4-[(1-{2-Cyclopropylpyrazolo[1,5-a]pyrazin-4-yl}pyrrolidin-3-yl)oxy]-3-methylpyridine
CAS 2742062-71-9C19H21N5O
![2-[1-(1,5-Dimethyl-1H-pyrazole-3-carbonyl)piperidin-4-yl]-1,8-naphthyridine chemical structure, C19H21N5O, CAS 2640893-11-2](/s/XSJREUODXGEBEI-UHFFFAOYSA-N.svg)
2-[1-(1,5-Dimethyl-1H-pyrazole-3-carbonyl)piperidin-4-yl]-1,8-naphthyridine
CAS 2640893-11-2C19H21N5O
![4-{3-[Methyl(5-methylpyrimidin-2-yl)amino]piperidine-1-carbonyl}benzonitrile chemical structure, C19H21N5O, CAS 2640975-82-0](/s/POJCYWWEKQYUKQ-UHFFFAOYSA-N.svg)
4-{3-[Methyl(5-methylpyrimidin-2-yl)amino]piperidine-1-carbonyl}benzonitrile
CAS 2640975-82-0C19H21N5O
![2-(1H-Indol-3-yl)-N-methyl-N-[1-(6-methylpyridazin-3-yl)azetidin-3-yl]acetamide chemical structure, C19H21N5O, CAS 2415585-86-1](/s/PMBBEVWZSREKAH-UHFFFAOYSA-N.svg)
2-(1H-Indol-3-yl)-N-methyl-N-[1-(6-methylpyridazin-3-yl)azetidin-3-yl]acetamide
CAS 2415585-86-1C19H21N5O
![4-Cyclopropyl-6-[5-(pyridine-2-carbonyl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]pyrimidine chemical structure, C19H21N5O, CAS 2415621-91-7](/s/FQQFLVADVREFOC-UHFFFAOYSA-N.svg)
4-Cyclopropyl-6-[5-(pyridine-2-carbonyl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]pyrimidine
CAS 2415621-91-7C19H21N5O
![4-Cyclopropyl-6-[5-(pyridine-4-carbonyl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]pyrimidine chemical structure, C19H21N5O, CAS 2415524-13-7](/s/QLEUNAPCEGOIJC-UHFFFAOYSA-N.svg)
4-Cyclopropyl-6-[5-(pyridine-4-carbonyl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]pyrimidine
CAS 2415524-13-7C19H21N5O
![4-Cyclopropyl-6-[5-(pyridine-3-carbonyl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]pyrimidine chemical structure, C19H21N5O, CAS 2415502-32-6](/s/ITQRFRHKRIAVEO-UHFFFAOYSA-N.svg)
4-Cyclopropyl-6-[5-(pyridine-3-carbonyl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]pyrimidine
CAS 2415502-32-6C19H21N5O
![2-Methyl-3-{[1-(pyrazin-2-yl)piperidin-4-yl]methyl}-3,4-dihydroquinazolin-4-one chemical structure, C19H21N5O, CAS 2415538-53-1](/s/IIQUTNPZXZSZFH-UHFFFAOYSA-N.svg)
2-Methyl-3-{[1-(pyrazin-2-yl)piperidin-4-yl]methyl}-3,4-dihydroquinazolin-4-one
CAS 2415538-53-1C19H21N5O
![2-Methyl-3-{[1-(pyrimidin-2-yl)piperidin-4-yl]methyl}-3,4-dihydroquinazolin-4-one chemical structure, C19H21N5O, CAS 2415541-01-2](/s/FVLZZFPYXJKCFN-UHFFFAOYSA-N.svg)
2-Methyl-3-{[1-(pyrimidin-2-yl)piperidin-4-yl]methyl}-3,4-dihydroquinazolin-4-one
CAS 2415541-01-2C19H21N5O
![2-[4-(2-Cyclopropyl-6-methylpyrimidin-4-yl)piperazin-1-yl]-1,3-benzoxazole chemical structure, C19H21N5O, CAS 2415491-84-6](/s/IOCJRLQPAYYBMR-UHFFFAOYSA-N.svg)
2-[4-(2-Cyclopropyl-6-methylpyrimidin-4-yl)piperazin-1-yl]-1,3-benzoxazole
CAS 2415491-84-6C19H21N5O
![4-[4-(1,3-Benzoxazol-2-yl)piperazin-1-yl]-5,6,7,8-tetrahydroquinazoline chemical structure, C19H21N5O, CAS 2415501-58-3](/s/NMFCJLRWEQZZKD-UHFFFAOYSA-N.svg)
4-[4-(1,3-Benzoxazol-2-yl)piperazin-1-yl]-5,6,7,8-tetrahydroquinazoline
CAS 2415501-58-3C19H21N5O
![2-{[1-(6-Cyclopropylpyrimidin-4-yl)piperidin-4-yl]methoxy}pyridine-4-carbonitrile chemical structure, C19H21N5O, CAS 2415604-07-6](/s/LQIBHNQCULJJLC-UHFFFAOYSA-N.svg)
2-{[1-(6-Cyclopropylpyrimidin-4-yl)piperidin-4-yl]methoxy}pyridine-4-carbonitrile
CAS 2415604-07-6C19H21N5O
![2-[4-(5-Cyclopropyl-1,3,4-oxadiazol-2-yl)piperidin-1-yl]-5H,6H,7H-cyclopenta[b]pyridine-3-carbonitrile chemical structure, C19H21N5O, CAS 2742033-17-4](/s/IEIVCJPAHJQPKQ-UHFFFAOYSA-N.svg)
2-[4-(5-Cyclopropyl-1,3,4-oxadiazol-2-yl)piperidin-1-yl]-5H,6H,7H-cyclopenta[b]pyridine-3-carbonitrile
CAS 2742033-17-4C19H21N5O
![1-(2-Methoxyphenyl)-4-{2-methylpyrido[3,4-d]pyrimidin-4-yl}piperazine chemical structure, C19H21N5O, CAS 2741948-15-0](/s/TUYJPUZHUKPBEU-UHFFFAOYSA-N.svg)
1-(2-Methoxyphenyl)-4-{2-methylpyrido[3,4-d]pyrimidin-4-yl}piperazine
CAS 2741948-15-0C19H21N5O
![2-[4-(5-Cyclopropyl-1,3,4-oxadiazol-2-yl)piperidin-1-yl]-3-methylquinoxaline chemical structure, C19H21N5O, CAS 2742039-32-1](/s/GCVBAKXLXQBFIV-UHFFFAOYSA-N.svg)
2-[4-(5-Cyclopropyl-1,3,4-oxadiazol-2-yl)piperidin-1-yl]-3-methylquinoxaline
CAS 2742039-32-1C19H21N5O
![2-[4-(6-Cyclopropyl-2-methylpyrimidin-4-yl)piperazin-1-yl]-1,3-benzoxazole chemical structure, C19H21N5O, CAS 2741934-42-7](/s/OXQQLNVSJXJBNK-UHFFFAOYSA-N.svg)
2-[4-(6-Cyclopropyl-2-methylpyrimidin-4-yl)piperazin-1-yl]-1,3-benzoxazole
CAS 2741934-42-7C19H21N5O
![7-Methoxy-4-methyl-2-[4-(pyrimidin-2-yl)piperazin-1-yl]quinoline chemical structure, C19H21N5O, CAS 2742011-92-1](/s/POOQJRBNXDSFKG-UHFFFAOYSA-N.svg)
7-Methoxy-4-methyl-2-[4-(pyrimidin-2-yl)piperazin-1-yl]quinoline
CAS 2742011-92-1C19H21N5O
![6-Cyclopropyl-2-{1-[(1,3,4-oxadiazol-2-yl)methyl]piperidin-4-yl}-1,8-naphthyridine chemical structure, C19H21N5O, CAS 2741911-74-8](/s/GLCPKUGZNDODPW-UHFFFAOYSA-N.svg)
6-Cyclopropyl-2-{1-[(1,3,4-oxadiazol-2-yl)methyl]piperidin-4-yl}-1,8-naphthyridine
CAS 2741911-74-8C19H21N5O
![2-Ethyl-1-({1-[3-(1H-pyrazol-1-yl)benzoyl]azetidin-3-yl}methyl)-1H-imidazole chemical structure, C19H21N5O, CAS 2741910-64-3](/s/YAKDORPUQAKPGF-UHFFFAOYSA-N.svg)
2-Ethyl-1-({1-[3-(1H-pyrazol-1-yl)benzoyl]azetidin-3-yl}methyl)-1H-imidazole
CAS 2741910-64-3C19H21N5O
![4-{4-[(3,6-Dimethylpyrazin-2-yl)oxy]piperidin-1-yl}quinazoline chemical structure, C19H21N5O, CAS 2742036-02-6](/s/AAYNGBCKKCJLEE-UHFFFAOYSA-N.svg)
4-{4-[(3,6-Dimethylpyrazin-2-yl)oxy]piperidin-1-yl}quinazoline
CAS 2742036-02-6C19H21N5O
- 6-(3-{[2-(Propan-2-yl)-1H-imidazol-1-yl]methyl}azetidine-1-carbonyl)quinoxaline2742052-90-8C19H21N5O
- 2-(4-{[(6-Methylpyridazin-3-yl)oxy]methyl}piperidin-1-yl)quinoxaline2770621-24-2C19H21N5O
- 2-Methyl-3-{3-[(pyrazin-2-yloxy)methyl]piperidin-1-yl}quinoxaline2770622-13-2C19H21N5O
- 4-{4-[(6-Methoxypyridin-3-yl)methyl]piperazin-1-yl}quinazoline2770625-55-1C19H21N5O
- 2-Methyl-1-[3-(1-methyl-1H-pyrazol-4-yl)-6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridin-7-yl]propan-1-one2770632-36-3C19H21N5O
- 2-{9-[(Oxolan-2-yl)methyl]-9H-purin-6-yl}-1,2,3,4-tetrahydroisoquinoline2770594-86-8C19H21N5O
- 2,4-Dimethyl-7-{3-[(pyrazin-2-yloxy)methyl]pyrrolidin-1-yl}-1,8-naphthyridine2770587-64-7C19H21N5O
- 1-{2,3-Dimethylimidazo[1,2-b]pyridazine-6-carbonyl}-4-phenylpiperazine2770623-76-0C19H21N5O
- 1-Methyl-N-[1-(quinolin-2-yl)piperidin-4-yl]-1H-pyrazole-3-carboxamide3030801-33-0C19H21N5O
- 1-Methyl-N-[1-(quinolin-4-yl)piperidin-4-yl]-1H-pyrazole-3-carboxamide3030812-92-8C19H21N5O
- N-[1-(Isoquinolin-1-yl)piperidin-4-yl]-1-methyl-1H-pyrazole-3-carboxamide3030815-03-0C19H21N5O
- N-[1-(Isoquinolin-1-yl)piperidin-3-yl]-1-methyl-1H-pyrazole-4-carboxamide3030781-40-6C19H21N5O
- 1-Methyl-N-[1-(quinolin-2-yl)piperidin-3-yl]-1H-pyrazole-4-carboxamide3030810-84-2C19H21N5O
- 1-Methyl-N-[1-(quinolin-4-yl)piperidin-3-yl]-1H-pyrazole-4-carboxamide3030828-63-5C19H21N5O
- 1-Methyl-N-[1-(quinolin-2-yl)piperidin-3-yl]-1H-pyrazole-3-carboxamide3030812-16-6C19H21N5O
- 1-Methyl-N-[1-(quinolin-4-yl)piperidin-3-yl]-1H-pyrazole-3-carboxamide3054537-72-0C19H21N5O
- 2-{3-[Cyclopropyl(6-methoxypyrimidin-4-yl)amino]pyrrolidin-1-yl}benzonitrile3054596-25-4C19H21N5O
- 2-{4-[(6-Methoxypyridin-3-yl)methyl]piperazin-1-yl}quinoxaline3054568-15-6C19H21N5O
- 3-[(4-{5H,6H,7H-Cyclopenta[d]pyrimidin-4-yl}piperazin-1-yl)methyl]-1,2-benzoxazole3030867-64-9C19H21N5O
- 3-{[4-(6-Cyclopropylpyrimidin-4-yl)piperazin-1-yl]methyl}-1,2-benzoxazole3030849-48-7C19H21N5O
- 3-{[4-(2-Cyclopropylpyrimidin-4-yl)piperazin-1-yl]methyl}-1,2-benzoxazole3030777-97-7C19H21N5O
- 4-[(1-{2-Methylpyrido[3,4-d]pyrimidin-4-yl}piperidin-3-yl)methoxy]pyridine3054579-80-2C19H21N5O
- 6-{[4-(5-Methoxypyrimidin-2-yl)piperazin-1-yl]methyl}quinoline3030765-61-5C19H21N5O
- 1-{[4-(4-Methoxypyrimidin-2-yl)piperazin-1-yl]methyl}isoquinoline3030813-07-8C19H21N5O
- 8-Cyclopentyl-5-methyl-2-{[(pyridin-4-yl)methyl]amino}-7H,8H-pyrido[2,3-d]pyrimidin-7-one3054623-79-6C19H21N5O
- 8-Cyclopentyl-5-methyl-2-{[(pyridin-2-yl)methyl]amino}-7H,8H-pyrido[2,3-d]pyrimidin-7-one3054638-31-9C19H21N5O
- 4-{3-[Cyclopropyl(6-methoxypyrimidin-4-yl)amino]pyrrolidin-1-yl}benzonitrile3054615-29-8C19H21N5O
- 1-Methyl-N-[1-(quinolin-4-yl)piperidin-4-yl]-1H-pyrazole-4-carboxamide3054553-32-8C19H21N5O
- 1-Methyl-N-[1-(quinolin-2-yl)piperidin-4-yl]-1H-pyrazole-4-carboxamide3054578-59-2C19H21N5O
- 6-Methoxy-N-{1-[(quinolin-4-yl)methyl]pyrrolidin-3-yl}pyrimidin-4-amine3054611-32-1C19H21N5O
- 2-{4-[(6-Methoxypyridin-2-yl)methyl]piperazin-1-yl}quinoxaline3054546-91-4C19H21N5O
- 4-Methoxy-N-{1-[(quinolin-4-yl)methyl]pyrrolidin-3-yl}pyrimidin-2-amine3054417-10-3C19H21N5O
- 1-(2,3-Dihydro-1H-indol-1-yl)-2-[3-(pyrimidin-2-yl)-3,6-diazabicyclo[3.1.1]heptan-6-yl]ethan-1-one3054412-04-0C19H21N5O
- N-(1-{Imidazo[1,2-b]pyridazin-6-yl}azetidin-3-yl)-N-methyl-2-(2-methylphenyl)acetamide3054602-58-0C19H21N5O
- Orb32108703060178-60-8C19H21N5O
Frequently asked questions
What is the molar mass of C19H21N5O?
The molar mass of C19H21N5O is 335.41 g/mol, calculated from standard atomic weights for 19 carbon atoms, 21 hydrogen atoms, 5 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 335.1746 Da.
How many compounds have the formula C19H21N5O?
CompoundList lists 259 compounds with the molecular formula C19H21N5O, including 3-Methyl-4-[(1-{pyrido[3,4-d]pyrimidin-4-yl}piperidin-4-yl)methoxy]pyridine, 2-(3a-{[(4-Methylpyrimidin-2-yl)oxy]methyl}-octahydrocyclopenta[c]pyrrol-2-yl)pyridine-3-carbonitrile, 5-(3a-{[(4-Methylpyrimidin-2-yl)oxy]methyl}-octahydrocyclopenta[c]pyrrol-2-yl)pyridine-2-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 C19H21N5O?
C19H21N5O has a degree of unsaturation of 12. 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.