C16H21N5O
241 compounds have this formula on CompoundList.
- Molar mass
- 299.38g/mol
- Monoisotopic mass
- 299.1746Da
- Atoms
- 43
- Elements
- 4
- Rings plus double bonds
- 9
The formula C16H21N5O describes a molecule made of 16 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 × 1664.19%12.011 × 16 = 192.176 g/mol
- H Hydrogen × 217.07%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 523.39%14.007 × 5 = 70.035 g/mol
- O Oxygen × 15.34%15.999 × 1 = 15.999 g/mol
Compounds with the formula C16H21N5O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 201 to 241 of 241 compounds
![1-Methyl-N-[1-(6-methylpyridin-2-yl)piperidin-3-yl]-1H-pyrazole-3-carboxamide chemical structure, C16H21N5O, CAS 3030800-09-7](/s/FXTTZMPJLGBDCP-UHFFFAOYSA-N.svg)
![1-Methyl-N-[1-(6-methylpyridin-2-yl)piperidin-4-yl]-1H-pyrazole-3-carboxamide chemical structure, C16H21N5O, CAS 3030763-18-6](/s/QXFQAZDPWABUMU-UHFFFAOYSA-N.svg)
![1-Methyl-N-[1-(5-methylpyridin-2-yl)piperidin-4-yl]-1H-pyrazole-3-carboxamide chemical structure, C16H21N5O, CAS 3030808-54-6](/s/VYVVVIQRJLBZFD-UHFFFAOYSA-N.svg)
![1-Methyl-N-{1-[(pyridin-3-yl)methyl]piperidin-3-yl}-1H-pyrazole-4-carboxamide chemical structure, C16H21N5O, CAS 3030807-53-2](/s/LMPKWVSLWWPNFN-UHFFFAOYSA-N.svg)
![1-Methyl-N-{1-[(pyridin-2-yl)methyl]piperidin-3-yl}-1H-pyrazole-4-carboxamide chemical structure, C16H21N5O, CAS 3030818-91-5](/s/FEHZSCWQTDYMSI-UHFFFAOYSA-N.svg)
![1-Methyl-N-{1-[(pyridin-3-yl)methyl]piperidin-3-yl}-1H-pyrazole-3-carboxamide chemical structure, C16H21N5O, CAS 3030800-64-4](/s/JHJQIEKLVZRYFM-UHFFFAOYSA-N.svg)
![1-Methyl-N-{1-[(pyridin-2-yl)methyl]piperidin-3-yl}-1H-pyrazole-3-carboxamide chemical structure, C16H21N5O, CAS 3030829-62-7](/s/RZJKSRHEIHBVCE-UHFFFAOYSA-N.svg)
![1-Methyl-N-{1-[(pyridin-4-yl)methyl]piperidin-3-yl}-1H-pyrazole-3-carboxamide chemical structure, C16H21N5O, CAS 3054428-35-9](/s/RTBIBUGRKUVBNX-UHFFFAOYSA-N.svg)
![1-Methyl-N-{1-[(pyridin-3-yl)methyl]piperidin-4-yl}-1H-pyrazole-3-carboxamide chemical structure, C16H21N5O, CAS 3030816-02-2](/s/NOHCWLFRPTZIMB-UHFFFAOYSA-N.svg)
![1-Methyl-N-{1-[(pyridin-2-yl)methyl]piperidin-4-yl}-1H-pyrazole-3-carboxamide chemical structure, C16H21N5O, CAS 3030865-97-2](/s/AMTUNRVLZRZXQM-UHFFFAOYSA-N.svg)
![1-Methyl-N-{1-[(pyridin-4-yl)methyl]piperidin-4-yl}-1H-pyrazole-3-carboxamide chemical structure, C16H21N5O, CAS 3030812-49-5](/s/ZEBLVWIURIUOIP-UHFFFAOYSA-N.svg)
![6-(2-tert-Butylpyrimidin-4-yl)-2-methyl-3H,4H,5H,6H,7H,8H-pyrido[4,3-d]pyrimidin-4-one chemical structure, C16H21N5O, CAS 3054625-45-2](/s/VEZCSVGIYLFEKC-UHFFFAOYSA-N.svg)
![N-{1-[(2-Methoxypyridin-4-yl)methyl]pyrrolidin-3-yl}-N-methylpyrimidin-4-amine chemical structure, C16H21N5O, CAS 3054578-01-4](/s/FHJPZDSXMDOMRF-UHFFFAOYSA-N.svg)
![N-{1-[(2-Methoxypyridin-4-yl)methyl]pyrrolidin-3-yl}-N-methylpyrimidin-2-amine chemical structure, C16H21N5O, CAS 3054538-63-2](/s/GCASDHJMJCIJPT-UHFFFAOYSA-N.svg)
![2-Methyl-5-{4-[(4-methylpyridin-3-yl)methyl]piperazin-1-yl}-2,3-dihydropyridazin-3-one chemical structure, C16H21N5O, CAS 3054578-83-2](/s/SRWNDQPEBWYGDJ-UHFFFAOYSA-N.svg)
![2-Methyl-5-{4-[(3-methylpyridin-2-yl)methyl]piperazin-1-yl}-2,3-dihydropyridazin-3-one chemical structure, C16H21N5O, CAS 3054558-93-6](/s/YQAJWFYNXZWJPT-UHFFFAOYSA-N.svg)
![N-[(2-Methoxypyridin-4-yl)methyl]-N-methyl-1-(5-methylpyrimidin-4-yl)azetidin-3-amine chemical structure, C16H21N5O, CAS 3054539-13-5](/s/CXMRRAQGESUOMH-UHFFFAOYSA-N.svg)
![N-{1-[(2-Methoxypyridin-4-yl)methyl]pyrrolidin-3-yl}-4-methylpyrimidin-2-amine chemical structure, C16H21N5O, CAS 3054565-57-7](/s/ZOSXPFLRDHHXIK-UHFFFAOYSA-N.svg)
![N-{1-[(6-Methoxypyridin-3-yl)methyl]pyrrolidin-3-yl}-4-methylpyrimidin-2-amine chemical structure, C16H21N5O, CAS 3054600-09-5](/s/YRULNXIMBBIBRN-UHFFFAOYSA-N.svg)
![N-{1-[(2-Methoxypyridin-4-yl)methyl]pyrrolidin-3-yl}-6-methylpyrimidin-4-amine chemical structure, C16H21N5O, CAS 3054621-29-0](/s/LKOVPXGBIVTESM-UHFFFAOYSA-N.svg)
![N-{1-[(2-Methoxypyridin-4-yl)methyl]piperidin-3-yl}pyrimidin-2-amine chemical structure, C16H21N5O, CAS 3054537-92-4](/s/XAHDRRFVLSUTQI-UHFFFAOYSA-N.svg)
![N-{1-[(6-Methoxypyridin-3-yl)methyl]piperidin-3-yl}pyrimidin-2-amine chemical structure, C16H21N5O, CAS 3054589-17-9](/s/MDCPTAPEBLWDDL-UHFFFAOYSA-N.svg)
![N-{1-[(2-Methoxypyridin-4-yl)methyl]piperidin-3-yl}pyrimidin-4-amine chemical structure, C16H21N5O, CAS 3054600-17-5](/s/RXZQXZQGSIZDLB-UHFFFAOYSA-N.svg)
![4-Methoxy-N-{1-[(2-methylpyridin-3-yl)methyl]pyrrolidin-3-yl}pyrimidin-2-amine chemical structure, C16H21N5O, CAS 3054598-41-0](/s/XLKNZWGULTWNMM-UHFFFAOYSA-N.svg)
- 6-Methoxy-N-{1-[(2-methylpyridin-3-yl)methyl]pyrrolidin-3-yl}pyrimidin-4-amine3054410-31-7C16H21N5O
- 6-Methoxy-N-{1-[(3-methylpyridin-2-yl)methyl]pyrrolidin-3-yl}pyrimidin-4-amine3054614-54-6C16H21N5O
- 4-Methoxy-N-{1-[(3-methylpyridin-2-yl)methyl]pyrrolidin-3-yl}pyrimidin-2-amine3054558-15-2C16H21N5O
- 4-Methoxy-N-{1-[(6-methylpyridin-2-yl)methyl]pyrrolidin-3-yl}pyrimidin-2-amine3054412-87-9C16H21N5O
- 6-Methoxy-N-{1-[2-(pyridin-2-yl)ethyl]pyrrolidin-3-yl}pyrimidin-4-amine3054598-57-8C16H21N5O
- 2-[1-(3-Cyanopyrazin-2-yl)piperidin-4-yl]-N-cyclobutylacetamide3054546-11-8C16H21N5O
- 2-{4-[(6-Methoxypyridin-2-yl)methyl]piperazin-1-yl}-4-methylpyrimidine3054626-01-3C16H21N5O
- 2-{4-[(6-Methoxypyridin-2-yl)methyl]piperazin-1-yl}-5-methylpyrimidine3054429-06-7C16H21N5O
- 4-Methoxy-N-{1-[2-(pyridin-2-yl)ethyl]pyrrolidin-3-yl}pyrimidin-2-amine3054548-93-2C16H21N5O
- 1-(1-{7-Methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl}azetidine-3-carbonyl)piperidine3054407-80-3C16H21N5O
- 4-{4-[(6-Methoxypyridin-3-yl)methyl]piperazin-1-yl}-6-methylpyrimidine3054599-39-9C16H21N5O
- 6-Methoxy-N-{1-[2-(pyridin-3-yl)ethyl]pyrrolidin-3-yl}pyrimidin-4-amine3054591-00-0C16H21N5O
- 4-Methoxy-N-{1-[2-(pyridin-3-yl)ethyl]pyrrolidin-3-yl}pyrimidin-2-amine3054411-91-2C16H21N5O
- 3-Amino-N-hexyl-5-(pyridin-4-yl)pyridazine-4-carboxamide1531921-81-9C16H21N5O
- (5AS,9AR)-1-(6-Ethoxypyridin-2-yl)-4,5,5A,6,7,8,9,9A-octahydro-[1,2,4]triazolo[4,3-A][1,6]naphthyridine2072820-60-9C16H21N5O
- (5AR,9AR)-1-(6-Ethoxypyridin-2-yl)-4,5,5A,6,7,8,9,9A-octahydro-[1,2,4]triazolo[4,3-A][1,6]naphthyridine2135332-40-8C16H21N5O
- 2-Methyl-5-[4-[(2-methyl-3-pyridinyl)methyl]piperazin-1-yl]pyridazin-3-one3030809-13-0C16H21N5O
Frequently asked questions
What is the molar mass of C16H21N5O?
The molar mass of C16H21N5O is 299.38 g/mol, calculated from standard atomic weights for 16 carbon atoms, 21 hydrogen atoms, 5 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 299.1746 Da.
How many compounds have the formula C16H21N5O?
CompoundList lists 241 compounds with the molecular formula C16H21N5O, including 1-Methyl-N-[1-(6-methylpyridin-2-yl)piperidin-3-yl]-1H-pyrazole-3-carboxamide, 1-Methyl-N-[1-(6-methylpyridin-2-yl)piperidin-4-yl]-1H-pyrazole-3-carboxamide, 1-Methyl-N-[1-(5-methylpyridin-2-yl)piperidin-4-yl]-1H-pyrazole-3-carboxamide. 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 C16H21N5O?
C16H21N5O has a degree of unsaturation of 9. 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.