Molecular formula
C21H28N4O
61 compounds have this formula on CompoundList.
- Molar mass
- 352.48g/mol
- Monoisotopic mass
- 352.2263Da
- Atoms
- 54
- Elements
- 4
- Rings plus double bonds
- 10
The formula C21H28N4O describes a molecule made of 21 carbon atoms, 28 hydrogen atoms, 4 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 × 2171.56%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 288.01%1.008 × 28 = 28.224 g/mol
- N Nitrogen × 415.90%14.007 × 4 = 56.028 g/mol
- O Oxygen × 14.54%15.999 × 1 = 15.999 g/mol
Look up another formula
Compounds with the formula C21H28N4O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 61 of 61 compounds
![3-(4-Methoxy-2-methylphenyl)-2,5-dimethyl-N-pentan-3-ylpyrazolo[1,5-a]pyrimidin-7-amine chemical structure, C21H28N4O, CAS 202579-74-6](/s/QBBJSFUFEUXTNU-UHFFFAOYSA-N.svg)
3-(4-Methoxy-2-methylphenyl)-2,5-dimethyl-N-pentan-3-ylpyrazolo[1,5-a]pyrimidin-7-amine
CAS 202579-74-6C21H28N4O
1-(2-(4-Methylpiperazin-1-yl)-2-(p-tolyl)ethyl)-3-phenylurea
CAS 898448-70-9C21H28N4O
1-(3-(4-Phenylpiperazin-1-yl)propyl)-3-(o-tolyl)urea
CAS 899903-10-7C21H28N4O
1-(1-(4-Methylpiperazin-1-yl)-1-phenylpropan-2-yl)-3-phenylurea
CAS 868228-39-1C21H28N4O
2-(4-((3,5-Dimethyl-1H-pyrazol-1-yl)methyl)piperidin-1-yl)-1-(indolin-1-yl)ethanone
CAS 1396746-25-0C21H28N4O
1-(4-(6-(3,4-Dimethylphenyl)pyridazin-3-yl)piperazin-1-yl)-3-methylbutan-1-one
CAS 1021131-11-2C21H28N4O
1-(4-(6-(2,4-Dimethylphenyl)pyridazin-3-yl)piperazin-1-yl)pentan-1-one
CAS 1021131-18-9C21H28N4O
![N-(1-Cyano-1-cyclopropylethyl)-2-[4-(3-phenylprop-2-en-1-yl)piperazin-1-yl]acetamide chemical structure, C21H28N4O, CAS 876927-61-6](/s/UNXGYINERBQWTK-VMPITWQZSA-N.svg)
N-(1-Cyano-1-cyclopropylethyl)-2-[4-(3-phenylprop-2-en-1-yl)piperazin-1-yl]acetamide
CAS 876927-61-6C21H28N4O
![2-Ethyl-1-{4-[6-(2-methylphenyl)pyridazin-3-yl]piperazin-1-yl}butan-1-one chemical structure, C21H28N4O, CAS 1021256-71-2](/s/IIOUXIOMMWFPNR-UHFFFAOYSA-N.svg)
2-Ethyl-1-{4-[6-(2-methylphenyl)pyridazin-3-yl]piperazin-1-yl}butan-1-one
CAS 1021256-71-2C21H28N4O
1-(2-(Dimethylamino)-2-(1-methylindolin-5-yl)ethyl)-3-(m-tolyl)urea
CAS 1170616-53-1C21H28N4O
Benzamide, 4-amino-2,6-dimethyl-N-(2-(4-phenyl-1-piperazinyl)ethyl)-
CAS 39728-52-4C21H28N4O
1-Piperazineacetamide, 4-(2-pyridinyl)-N-(2,3,5,6-tetramethylphenyl)-
CAS 86523-71-9C21H28N4O
![N-[4-(Butan-2-yl)phenyl]-2-[4-(pyridin-2-yl)piperazin-1-yl]acetamide chemical structure, C21H28N4O, CAS 329779-65-9](/s/SXKPTHOMPFNMNS-UHFFFAOYSA-N.svg)
N-[4-(Butan-2-yl)phenyl]-2-[4-(pyridin-2-yl)piperazin-1-yl]acetamide
CAS 329779-65-9C21H28N4O
N'-(4-Cyanobutyl)-N-(4-methoxybenzyl)-N'-methyl-N-2-pyridinyl-1,2-ethanediamine
CAS 109912-34-7C21H28N4O
![(Z)-2-Amino-3-[(4-decoxyphenyl)methylideneamino]but-2-enedinitrile chemical structure, C21H28N4O, CAS 1025259-81-7](/s/NKFIQJBPYKCCSQ-QMPDWSFWSA-N.svg)
(Z)-2-Amino-3-[(4-decoxyphenyl)methylideneamino]but-2-enedinitrile
CAS 1025259-81-7C21H28N4O
4-(tert-Butyl)-N-((1-(pyrimidin-2-yl)piperidin-4-yl)methyl)benzamide
CAS 1235080-39-3C21H28N4O
(4-((1H-Imidazol-1-yl)methyl)phenyl)(4-cyclohexylpiperazin-1-yl)methanone
CAS 1325745-55-8C21H28N4O
![2-[(4-Benzylpiperazin-1-yl)methyl]-2,5,6,7,8,9-hexahydro-3H-cyclohepta[c]pyridazin-3-one chemical structure, C21H28N4O, CAS 1374537-11-7](/s/SHRXTGHZKRSSFK-UHFFFAOYSA-N.svg)
2-[(4-Benzylpiperazin-1-yl)methyl]-2,5,6,7,8,9-hexahydro-3H-cyclohepta[c]pyridazin-3-one
CAS 1374537-11-7C21H28N4O
![3-(1-Isopropyl-1H-indol-3-yl)-N-[(1,3,5-trimethyl-1H-pyrazol-4-yl)methyl]propanamide chemical structure, C21H28N4O, CAS 1401568-91-9](/s/IDHKFOTZJRXCMK-UHFFFAOYSA-N.svg)
3-(1-Isopropyl-1H-indol-3-yl)-N-[(1,3,5-trimethyl-1H-pyrazol-4-yl)methyl]propanamide
CAS 1401568-91-9C21H28N4O
![(2-Methyl-4,5,6,7-tetrahydro-1H-benzo[d]imidazol-5-yl)(4-phenethylpiperazin-1-yl)methanone chemical structure, C21H28N4O, CAS 2034441-42-2](/s/LLKBSCYNZHAURV-UHFFFAOYSA-N.svg)
(2-Methyl-4,5,6,7-tetrahydro-1H-benzo[d]imidazol-5-yl)(4-phenethylpiperazin-1-yl)methanone
CAS 2034441-42-2C21H28N4O
![N-(1-Benzylpiperidin-4-yl)-2-methyl-4,5,6,7-tetrahydro-1H-benzo[d]imidazole-5-carboxamide chemical structure, C21H28N4O, CAS 2034451-98-2](/s/DGUHJSAGUQKNPK-UHFFFAOYSA-N.svg)
N-(1-Benzylpiperidin-4-yl)-2-methyl-4,5,6,7-tetrahydro-1H-benzo[d]imidazole-5-carboxamide
CAS 2034451-98-2C21H28N4O
![N-[3-Amino-4-(4-methylpiperazin-1-yl)phenyl]-4-isopropylbenzamide chemical structure, C21H28N4O, CAS 1779121-63-9](/s/YSLJBZHUZOQESI-UHFFFAOYSA-N.svg)
N-[3-Amino-4-(4-methylpiperazin-1-yl)phenyl]-4-isopropylbenzamide
CAS 1779121-63-9C21H28N4O
1-((1-(2-Methylpyridin-4-yl)piperidin-4-yl)methyl)-3-phenethylurea
CAS 2034287-26-6C21H28N4O
![Pyrimidine, 2-[(1-cyclopentyl-4-piperidinyl)oxy]-5-(6-ethyl-3-pyridinyl)- chemical structure, C21H28N4O, CAS 832735-06-5](/s/SHGHKBSQGTVRCY-UHFFFAOYSA-N.svg)
Pyrimidine, 2-[(1-cyclopentyl-4-piperidinyl)oxy]-5-(6-ethyl-3-pyridinyl)-
CAS 832735-06-5C21H28N4O
- N-Butyl-N-methyl-1-(6-phenylpyridazin-3-yl)piperidine-4-carboxamide1189650-19-8C21H28N4O
- 1-(4-(2-Oxo-2,3-dihydro-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)cyclooctanecarbonitrile1032289-50-1C21H28N4O
- 2-{[1-(Cyclopentylmethyl)piperidin-4-yl]methyl}-6-(pyridin-4-yl)-2,3-dihydropyridazin-3-one2097917-28-5C21H28N4O
- (Z)-2-Cyano-3-cyclopropyl-N-[3-[4-(3-methylphenyl)piperazin-1-yl]propyl]prop-2-enamide2094956-58-6C21H28N4O
- N-(2,3-Dimethylphenyl)-2-[4-[(3-methylpyridin-2-yl)methyl]piperazin-1-yl]acetamide2877761-03-8C21H28N4O
- N'-[1-(4-Hexylphenyl)ethylidene]-1,4,5,6-tetrahydrocyclopenta[c]pyrazole-3-carbohydrazide331418-83-8C21H28N4O
- 5-Amino-N-(4,4-dimethylcyclohexyl)-6-[(phenylmethyl)amino]-3-pyridinecarboxamide1218944-49-0C21H28N4O
- 4-Benzyl-1-({6-[(dimethylamino)methyl]pyridin-2-yl}methyl)-1,4-diazepan-5-one120944-07-2C21H28N4O
- N-(2,5-Dimethylphenyl)-2-{4-[(3-methylpyridin-2-yl)methyl]piperazin-1-yl}acetamide2877668-56-7C21H28N4O
- N-(4-Ethylphenyl)-2-{4-[(3-methylpyridin-2-yl)methyl]piperazin-1-yl}acetamide2877708-24-0C21H28N4O
- N-(2,3-Dimethylphenyl)-2-{4-[(5-methylpyridin-3-yl)methyl]piperazin-1-yl}acetamide2877643-43-9C21H28N4O
- N-(2,4-Dimethylphenyl)-2-{4-[(2-methylpyridin-3-yl)methyl]piperazin-1-yl}acetamide2877710-27-3C21H28N4O
- N-(2,4-Dimethylphenyl)-2-{4-[(3-methylpyridin-2-yl)methyl]piperazin-1-yl}acetamide2877662-95-6C21H28N4O
- N-(2,4-Dimethylphenyl)-2-{4-[(5-methylpyridin-3-yl)methyl]piperazin-1-yl}acetamide2877668-62-5C21H28N4O
- N-(2,5-Dimethylphenyl)-2-{4-[(5-methylpyridin-3-yl)methyl]piperazin-1-yl}acetamide2877710-87-5C21H28N4O
- N-(3,5-Dimethylphenyl)-2-{4-[(5-methylpyridin-3-yl)methyl]piperazin-1-yl}acetamide2877675-80-2C21H28N4O
- N-(3,5-Dimethylphenyl)-2-{4-[(3-methylpyridin-2-yl)methyl]piperazin-1-yl}acetamide2877703-05-2C21H28N4O
- N-(4-Ethylphenyl)-2-{4-[(5-methylpyridin-3-yl)methyl]piperazin-1-yl}acetamide2877643-63-3C21H28N4O
- 2,4-Dimethyl-7-[3-(piperidine-1-carbonyl)piperidin-1-yl]-1,8-naphthyridine2877634-30-3C21H28N4O
- N-(2,4-Dimethylphenyl)-2-[4-[(4-methylpyridin-3-yl)methyl]piperazin-1-yl]acetamide3030729-29-1C21H28N4O
- N-(4-Propan-2-ylphenyl)-2-[4-(pyridin-4-ylmethyl)piperazin-1-yl]acetamide3030768-48-7C21H28N4O
- N-(2,3-Dimethylphenyl)-2-[4-[(2-methylpyridin-3-yl)methyl]piperazin-1-yl]acetamide3054570-30-5C21H28N4O
- N-(3,5-Dimethylphenyl)-2-[4-[(2-methylpyridin-3-yl)methyl]piperazin-1-yl]acetamide3054595-30-8C21H28N4O
- N-tert-Butyl-4-(6-cyclopropyl-1,8-naphthyridin-2-yl)piperidine-1-carboxamide2742029-11-2C21H28N4O
- 6-[3-(Dimethylamino)propyl]-8-methoxy-1,2,3,4-tetrahydroindolo[2,3-b]quinolin-11-amine2773475-11-7C21H28N4O
- 4,6-Dimethyl-2-(4-{octahydrocyclopenta[c]pyrrole-2-carbonyl}piperidin-1-yl)pyridine-3-carbonitrile3054410-42-0C21H28N4O
- N-Cyclopentyl-2-[1-(4-methylphthalazin-1-yl)piperidin-4-yl]acetamide3054544-27-0C21H28N4O
- 1-Methyl-2-(4-{octahydrocyclopenta[c]pyrrole-2-carbonyl}piperidin-1-yl)-1H-1,3-benzodiazole3054575-01-5C21H28N4O
- N-Cyclopentyl-2-[1-(3-methylquinoxalin-2-yl)piperidin-4-yl]acetamide3054533-72-8C21H28N4O
- N-{1-[2-(2,3-Dihydro-1-benzofuran-5-yl)ethyl]piperidin-3-yl}-N,4-dimethylpyrimidin-2-amine3030812-47-3C21H28N4O
- 1-(4-{4-[(1-Methyl-4,5,6,7-tetrahydro-1H-indazol-3-yl)methyl]piperazin-1-yl}phenyl)ethan-1-one3030765-27-3C21H28N4O
- 2-{4-[(Pyridin-3-yl)methyl]piperazin-1-yl}-N-(2,4,6-trimethylphenyl)acetamide3054603-23-2C21H28N4O
- N-(2,5-Dimethylphenyl)-2-{4-[(2-methylpyridin-3-yl)methyl]piperazin-1-yl}acetamide3030783-49-1C21H28N4O
- N-(4-Ethylphenyl)-2-{4-[(2-methylpyridin-3-yl)methyl]piperazin-1-yl}acetamide3054583-10-4C21H28N4O
- 6-Methyl-2-[4-(octahydro-1H-isoindole-2-carbonyl)piperidin-1-yl]pyridine-3-carbonitrile3054567-38-0C21H28N4O
- N-Cyclobutyl-2-[1-(5,7-dimethyl-1,8-naphthyridin-2-yl)piperidin-4-yl]acetamide3054631-19-2C21H28N4O
- 2-{1-[2-(4-Methyl-1H-pyrazol-1-yl)ethyl]piperidine-3-carbonyl}-1,2,3,4-tetrahydroisoquinoline3054636-73-3C21H28N4O
Frequently asked questions
What is the molar mass of C21H28N4O?
The molar mass of C21H28N4O is 352.48 g/mol, calculated from standard atomic weights for 21 carbon atoms, 28 hydrogen atoms, 4 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 352.2263 Da.
How many compounds have the formula C21H28N4O?
CompoundList lists 61 compounds with the molecular formula C21H28N4O, including 3-(4-Methoxy-2-methylphenyl)-2,5-dimethyl-N-pentan-3-ylpyrazolo[1,5-a]pyrimidin-7-amine, 1-(2-(4-Methylpiperazin-1-yl)-2-(p-tolyl)ethyl)-3-phenylurea, 1-(3-(4-Phenylpiperazin-1-yl)propyl)-3-(o-tolyl)urea. 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 C21H28N4O?
C21H28N4O has a degree of unsaturation of 10. 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.