Molecular formula
C21H27N5O2
176 compounds have this formula on CompoundList.
- Molar mass
- 381.48g/mol
- Monoisotopic mass
- 381.2165Da
- Atoms
- 55
- Elements
- 4
- Rings plus double bonds
- 11
The formula C21H27N5O2 describes a molecule made of 21 carbon atoms, 27 hydrogen atoms, 5 nitrogen atoms and 2 oxygen atoms. 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 × 2166.12%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 277.13%1.008 × 27 = 27.216 g/mol
- N Nitrogen × 518.36%14.007 × 5 = 70.035 g/mol
- O Oxygen × 28.39%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C21H27N5O2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 176 compounds
3-Methyl-8-(3-methylpiperidin-1-yl)-7-(3-phenylpropyl)purine-2,6-dione
CAS 579442-23-2C21H27N5O2
3-Methyl-8-(4-methylpiperidin-1-yl)-7-(3-phenylpropyl)-1H-purine-2,6(3H,7H)-dione
CAS 577700-22-2C21H27N5O2
![3-Isobutyl-1-methyl-9-phenethyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione chemical structure, C21H27N5O2, CAS 850192-25-5](/s/UMVCCZPCNJAWRF-UHFFFAOYSA-N.svg)
3-Isobutyl-1-methyl-9-phenethyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione
CAS 850192-25-5C21H27N5O2
![9-Benzyl-1-methyl-3-(3-methylbutyl)-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione chemical structure, C21H27N5O2, CAS 862488-33-3](/s/IULRODKCQSMDGP-UHFFFAOYSA-N.svg)
9-Benzyl-1-methyl-3-(3-methylbutyl)-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione
CAS 862488-33-3C21H27N5O2
![(3,5-Dimethylphenyl)-N-(2-oxo-2-spiro[4,5,6,7-tetrahydroimidazo[4,5-c]pyridine-4,4'-piperidine]-10-ylethyl)carboxamide chemical structure, C21H27N5O2, CAS 895842-42-9](/s/JJBAZJUOVFTZCQ-UHFFFAOYSA-N.svg)
(3,5-Dimethylphenyl)-N-(2-oxo-2-spiro[4,5,6,7-tetrahydroimidazo[4,5-c]pyridine-4,4'-piperidine]-10-ylethyl)carboxamide
CAS 895842-42-9C21H27N5O2
![9-Benzyl-3-isobutyl-1,7-dimethyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione chemical structure, C21H27N5O2, CAS 876151-83-6](/s/NSCOWNVELKDYDY-UHFFFAOYSA-N.svg)
9-Benzyl-3-isobutyl-1,7-dimethyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione
CAS 876151-83-6C21H27N5O2
(3,4-Dimethylphenyl)(4-(6-morpholinopyridazin-3-yl)piperazin-1-yl)methanone
CAS 898460-06-5C21H27N5O2
8-(1-Azepanyl)-1,3-dimethyl-7-(4-methylbenzyl)-3,7-dihydro-1H-purine-2,6-dione
CAS 477333-77-0C21H27N5O2
Bbr 2378
CAS 144510-88-3C21H27N5O2
Dipeptidyl nitrile inhibitor, 26
CAS 225120-45-6C21H27N5O2
4,7-Methano-1H-isoindole-1,3(2H)-dione, 3A,4,7,7
CAS 103066-37-1C21H27N5O2
![6,9-Bis((4-aminobutyl)amino)benzo[g]isoquinoline-5,10-dione chemical structure, C21H27N5O2, CAS 144511-04-6](/s/HCHOKVZZDXHUFP-UHFFFAOYSA-N.svg)
6,9-Bis((4-aminobutyl)amino)benzo[g]isoquinoline-5,10-dione
CAS 144511-04-6C21H27N5O2
![3,3-Dimethyl-N-(2-(5-(2-methylbenzyl)-4-oxo-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl)butanamide chemical structure, C21H27N5O2, CAS 922062-14-4](/s/CHXWAKWCSAGWOO-UHFFFAOYSA-N.svg)
3,3-Dimethyl-N-(2-(5-(2-methylbenzyl)-4-oxo-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl)butanamide
CAS 922062-14-4C21H27N5O2
![2-Ethyl-N-(2-(5-(2-methylbenzyl)-4-oxo-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl)butanamide chemical structure, C21H27N5O2, CAS 921919-60-0](/s/QVVREGVDWNETAB-UHFFFAOYSA-N.svg)
2-Ethyl-N-(2-(5-(2-methylbenzyl)-4-oxo-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl)butanamide
CAS 921919-60-0C21H27N5O2
![2-Ethyl-N-(2-(5-(3-methylbenzyl)-4-oxo-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl)butanamide chemical structure, C21H27N5O2, CAS 922016-38-4](/s/GHBSZQZEBYKOLA-UHFFFAOYSA-N.svg)
2-Ethyl-N-(2-(5-(3-methylbenzyl)-4-oxo-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl)butanamide
CAS 922016-38-4C21H27N5O2
![3-[2-(4-Aminophenyl)ethyl]-8-cyclopentyl-3,7-dihydro-1-propyl-1H-purine-2,6-dione chemical structure, C21H27N5O2, CAS 116370-30-0](/s/HIGUCTFSOVUIFC-UHFFFAOYSA-N.svg)
3-[2-(4-Aminophenyl)ethyl]-8-cyclopentyl-3,7-dihydro-1-propyl-1H-purine-2,6-dione
CAS 116370-30-0C21H27N5O2
![8-(Cyclohexylamino)-1,3-dimethyl-7-[(3-methylphenyl)methyl]-2,3,6,7-tetrahydro-1H-purine-2,6-dione chemical structure, C21H27N5O2, CAS 359901-51-2](/s/DNWBPKBVPMRGAY-UHFFFAOYSA-N.svg)
8-(Cyclohexylamino)-1,3-dimethyl-7-[(3-methylphenyl)methyl]-2,3,6,7-tetrahydro-1H-purine-2,6-dione
CAS 359901-51-2C21H27N5O2
1,3-Dimethyl-7-(3-phenylpropyl)-8-(piperidin-1-yl)-1H-purine-2,6(3H,7H)-dione
CAS 377056-56-9C21H27N5O2
8-(Azepan-1-yl)-3-methyl-7-(3-phenylpropyl)-3,7-dihydro-1H-purine-2,6-dione
CAS 326918-93-8C21H27N5O2
8-(Azepan-1-yl)-1,3-dimethyl-7-(3-methylbenzyl)-1H-purine-2,6(3H,7H)-dione
CAS 377060-11-2C21H27N5O2
3-Methyl-8-(2-methylpiperidin-1-yl)-7-(3-phenylpropyl)-1H-purine-2,6(3H,7H)-dione
CAS 578006-01-6C21H27N5O2
![7-Benzyl-1,3-dimethyl-8-[(4-methylpiperidin-1-yl)methyl]-3,7-dihydro-1H-purine-2,6-dione chemical structure, C21H27N5O2, CAS 851937-73-0](/s/PIAJCOBFQBFARP-UHFFFAOYSA-N.svg)
7-Benzyl-1,3-dimethyl-8-[(4-methylpiperidin-1-yl)methyl]-3,7-dihydro-1H-purine-2,6-dione
CAS 851937-73-0C21H27N5O2
1,3-Dimethyl-7-(2-methylbenzyl)-8-(piperidin-1-ylmethyl)-3,7-dihydro-1H-purine-2,6-dione
CAS 851938-12-0C21H27N5O2
![1-Benzyl-4-[2-nitro-5-(1-piperazinyl)phenyl]piperazine chemical structure, C21H27N5O2, CAS 433234-77-6](/s/OENGFIWDYGDZHV-UHFFFAOYSA-N.svg)
1-Benzyl-4-[2-nitro-5-(1-piperazinyl)phenyl]piperazine
CAS 433234-77-6C21H27N5O2
- 7-Benzyl-1,3-dimethyl-8-[(2-methylpiperidin-1-yl)methyl]-3,7-dihydro-1H-purine-2,6-dione838866-74-3C21H27N5O2
- 1,3-Dimethyl-7-(4-methylbenzyl)-8-(piperidin-1-ylmethyl)-3,7-dihydro-1H-purine-2,6-dione851939-15-6C21H27N5O2
- 1,3-Dimethyl-7-[(3-methylphenyl)methyl]-8-(4-methylpiperidin-1-yl)purine-2,6-dione359901-59-0C21H27N5O2
- 1,7-Dimethyl-9-phenethyl-3-propyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione877616-22-3C21H27N5O2
- 9-(4-Butylphenyl)-1,3,7-trimethyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione887863-73-2C21H27N5O2
- 3-Isopentyl-1,7-dimethyl-9-phenyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione847339-58-6C21H27N5O2
- 3-Butyl-1,7-dimethyl-9-(4-methylphenyl)-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione845989-09-5C21H27N5O2
- 1,7-Dimethyl-9-(4-methylphenyl)-3-(2-methylpropyl)-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione847855-17-8C21H27N5O2
- 9-(3,4-Dimethylphenyl)-1,7-dimethyl-3-propyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione845807-79-6C21H27N5O2
- 6-(3,4-Dimethylphenyl)-4-methyl-2-(3-methylbutyl)-7,8-dihydropurino[7,8-a]imidazole-1,3-dione893947-04-1C21H27N5O2
- 6-(4-Ethylphenyl)-4-methyl-2-(3-methylbutyl)-7,8-dihydropurino[7,8-a]imidazole-1,3-dione893947-35-8C21H27N5O2
- 2-(4-(3-(2-Methoxyphenyl)-2,5-dimethylpyrazolo[1,5-a]pyrimidin-7-yl)piperazin-1-yl)ethanol879577-25-0C21H27N5O2
- 3-(2-Methoxyphenyl)-2,5-dimethyl-N-(2-morpholinoethyl)pyrazolo[1,5-a]pyrimidin-7-amine902041-09-2C21H27N5O2
- 3-(2-Methoxyphenyl)-5-methyl-N-(3-morpholin-4-ylpropyl)pyrazolo[1,5-a]pyrimidin-7-amine902031-13-4C21H27N5O2
- 9-(4-Ethylphenyl)-1,7-dimethyl-3-propyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione847247-08-9C21H27N5O2
- 9-(3,5-Dimethylphenyl)-1-methyl-3-(2-methylpropyl)-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione848279-68-5C21H27N5O2
- 6-(2,4-Dimethylphenyl)-4-methyl-2-(3-methylbutyl)-7,8-dihydropurino[7,8-a]imidazole-1,3-dione938761-41-2C21H27N5O2
- 3-Isobutyl-1,7-dimethyl-9-(o-tolyl)-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione877618-00-3C21H27N5O2
- 2-(3,4-Dimethoxyphenyl)-7-(4-ethylpiperazin-1-yl)-5-methylpyrazolo[1,5-a]pyrimidine932987-87-6C21H27N5O2
- 2-(2-Methoxyphenyl)-5-methyl-N-[3-(morpholin-4-yl)propyl]pyrazolo[1,5-a]pyrimidin-7-amine1015582-55-4C21H27N5O2
- 2-(3,4-Dimethoxyphenyl)-3,5-dimethyl-7-(4-methylpiperazin-1-yl)pyrazolo[1,5-a]pyrimidine1015596-58-3C21H27N5O2
- 2,3-Piperazinedione, 1-hexyl-4-((4-(2-pyrimidinylamino)phenyl)methyl)-77917-01-2C21H27N5O2
- 3-Hexyl-1-methyl-9-phenyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione300804-17-5C21H27N5O2
- 6-(4-Ethylphenyl)-4-methyl-2-pentyl-7,8-dihydropurino[7,8-a]imidazole-1,3-dione872840-61-4C21H27N5O2
- 3-Butyl-1-methyl-9-(2-phenylethyl)-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione877795-02-3C21H27N5O2
- 1,7-Dimethyl-9-(3-methylphenyl)-3-(2-methylpropyl)-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione847340-11-8C21H27N5O2
- 1-Methyl-3-(3-methylbutyl)-9-(4-methylphenyl)-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione844825-61-2C21H27N5O2
- 1,7-Dimethyl-3-pentyl-9-phenyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione844823-83-2C21H27N5O2
- 9-Benzyl-1-methyl-3-pentyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione877807-18-6C21H27N5O2
- 1-Methyl-9-(3-methylphenyl)-3-pentyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione848741-24-2C21H27N5O2
- 3-Butyl-1,7-dimethyl-9-(3-methylphenyl)-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione847175-11-5C21H27N5O2
- 3-Hexyl-1-methyl-8-(4-methylphenyl)-1H,2H,3H,4H,6H,7H,8H-imidazo[1,2-g]purine-2,4-dione872840-33-0C21H27N5O2
- 9-Benzyl-3-butyl-1,7-dimethyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione876151-81-4C21H27N5O2
- 6-(2,5-Dimethylphenyl)-4-methyl-2-(3-methylbutyl)-7,8-dihydropurino[7,8-a]imidazole-1,3-dione938841-18-0C21H27N5O2
- (1beta,2beta,3beta,4beta)-N-[4-[4-(2-Pyrimidinyl)-1-piperazinyl]butyl]-2,3-bicyclo[2.2.1]hept-5-enedicarbimide138332-79-3C21H27N5O2
- 2,5-Piperazinedione, 1-hexyl-4-((4-(2-pyrimidinylamino)phenyl)methyl)-79179-65-0C21H27N5O2
- 3-Heptyl-1-methyl-8-phenyl-1H,2H,3H,4H,6H,7H,8H-imidazo[1,2-g]purine-2,4-dione872838-89-6C21H27N5O2
- 1-Methyl-3-(3-methylbutyl)-9-(3-methylphenyl)-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione843672-15-1C21H27N5O2
- 2-Methylbutyl 2-cyano-2-(3-(4-methylpiperazin-1-yl)quinoxalin-2-yl)acetate578000-11-0C21H27N5O2
- 1-Methyl-9-(4-methylphenyl)-3-pentyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione848215-08-7C21H27N5O2
- 3-Butyl-9-(4-ethylphenyl)-1-methyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione848745-25-5C21H27N5O2
- 9-(4-Butylphenyl)-3-ethyl-1-methyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione893956-83-7C21H27N5O2
- 3-(3,4-Dimethoxyphenyl)-2,5-dimethyl-7-(4-methylpiperazin-1-yl)pyrazolo[1,5-a]pyrimidine900288-91-7C21H27N5O2
- 9-(3,5-Dimethylphenyl)-1,7-dimethyl-3-propyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione848743-56-6C21H27N5O2
- 9-(3,4-Dimethylphenyl)-1-methyl-3-(2-methylpropyl)-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione846587-55-1C21H27N5O2
- 2-[4-(2-Hydroxyethyl)piperazin-1-yl]-4-[(4-methylphenyl)amino]-7,8-dihydroquinazolin-5(6H)-one929856-57-5C21H27N5O2
- 1,3-Dimethyl-7-(4-methylbenzyl)-8-(3-methylpiperidin-1-yl)-3,7-dihydro-1H-purine-2,6-dione897547-72-7C21H27N5O2
- 3-Butyl-9-(2,3-dimethylphenyl)-1-methyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione923399-35-3C21H27N5O2
- 1-Methyl-3-pentyl-9-(o-tolyl)-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione877617-09-9C21H27N5O2
- 8-(2,5-Dimethylphenyl)-1-methyl-3-pentyl-1,3,5-trihydroimidazolidino[1,2-h]pur ine-2,4-dione923463-07-4C21H27N5O2
- 9-(2,3-Dimethylphenyl)-3-isobutyl-1-methyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione923437-72-3C21H27N5O2
- 2-(4-Methoxyphenyl)-3,5-dimethyl-N-[2-(morpholin-4-yl)ethyl]pyrazolo[1,5-a]pyrimidin-7-amine1202998-13-7C21H27N5O2
- N-Cyclopentyl-2-[6-oxo-3-(4-phenylpiperazin-1-yl)pyridazin-1(6H)-yl]acetamide1189878-68-9C21H27N5O2
- 6-(4-Benzylpiperidin-1-yl)-N-morpholinopyridazine-3-carboxamide1421457-74-0C21H27N5O2
- (3,4-Dimethylphenyl)(4-(5-morpholinopyridazin-3-yl)piperazin-1-yl)methanone1448071-79-1C21H27N5O2
- N-[1-(4,5-Dimethyl-6-oxo-1,6-dihydropyrimidin-2-yl)-3-methyl-1H-pyrazol-5-yl]adamantane-1-carboxamide1004679-87-1C21H27N5O2
- 3-Butyl-9-(3,5-dimethylphenyl)-1-methyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione844821-76-7C21H27N5O2
- 9-(4-Ethylphenyl)-1-methyl-3-(2-methylpropyl)-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione848866-81-9C21H27N5O2
- 3-Butyl-9-(3,4-dimethylphenyl)-1-methyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione848866-95-5C21H27N5O2
- 1-(4-(6-Morpholinopyridazin-3-yl)piperazin-1-yl)-3-phenylpropan-1-one898437-73-5C21H27N5O2
- 8-(3,4-Dimethylphenyl)-1-methyl-3-pentyl-1H,2H,3H,4H,6H,7H,8H-imidazo[1,2-g]purine-2,4-dione872843-03-3C21H27N5O2
- 3-Hexyl-1-methyl-8-(3-methylphenyl)-1H,2H,3H,4H,6H,7H,8H-imidazo[1,2-g]purine-2,4-dione872840-08-9C21H27N5O2
- 3-Isopentyl-1-methyl-9-(o-tolyl)-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione877617-11-3C21H27N5O2
- 8-(3,5-Dimethylphenyl)-1-methyl-3-pentyl-1H,2H,3H,4H,6H,7H,8H-imidazo[1,2-g]purine-2,4-dione872843-33-9C21H27N5O2
- 6-(2,3-Dimethylphenyl)-4-methyl-2-(3-methylbutyl)-7,8-dihydropurino[7,8-a]imidazole-1,3-dione941924-32-9C21H27N5O2
- 9-(2,4-Dimethylphenyl)-3-isobutyl-1-methyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione923481-82-7C21H27N5O2
- 3-Butyl-1,7-dimethyl-9-(o-tolyl)-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione877617-98-6C21H27N5O2
- 8-(2,4-Dimethylphenyl)-1-methyl-3-pentyl-1,3,5-trihydroimidazolidino[1,2-h]pur ine-2,4-dione923369-83-9C21H27N5O2
- 3-Butyl-9-(2,4-dimethylphenyl)-1-methyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione922453-78-9C21H27N5O2
- 2-{4-[2-(4-Methoxyphenyl)-3,5-dimethylpyrazolo[1,5-a]pyrimidin-7-yl]piperazin-1-yl}ethanol1203162-12-2C21H27N5O2
- 2-(2-Oxo-2-{4-[2-(4-pyridyl)ethyl]piperazino}ethyl)-5,6,7,8-tetrahydro-3(2H)-cinnolinone1401559-42-9C21H27N5O2
- (4-(4-(Dimethylamino)benzoyl)piperazin-1-yl)(4,5,6,7-tetrahydropyrazolo[1,5-a]pyridin-3-yl)methanone2034587-09-0C21H27N5O2
- 5-Pyrimidinecarboxamide, 2-amino-4-methoxy-N-(8-(p-methylbenzyl)-3-beta-nortropanyl)-76351-86-5C21H27N5O2
- 5-Pyrimidinecarboxamide, 2-amino-4-methoxy-N-(8-(o-methylbenzyl)-3-beta-nortropanyl)-84923-23-9C21H27N5O2
- 5-Pyrimidinecarboxamide, 2-amino-4-methoxy-N-(8-(m-methylbenzyl)-3-beta-nortropanyl)-84923-26-2C21H27N5O2
- (4-(4-Methoxyphenyl)piperazin-1-yl)(1-(pyrimidin-2-yl)piperidin-3-yl)methanone605623-75-4C21H27N5O2
Frequently asked questions
What is the molar mass of C21H27N5O2?
The molar mass of C21H27N5O2 is 381.48 g/mol, calculated from standard atomic weights for 21 carbon atoms, 27 hydrogen atoms, 5 nitrogen atoms and 2 oxygen atoms. The monoisotopic mass is 381.2165 Da.
How many compounds have the formula C21H27N5O2?
CompoundList lists 176 compounds with the molecular formula C21H27N5O2, including 3-Methyl-8-(3-methylpiperidin-1-yl)-7-(3-phenylpropyl)purine-2,6-dione, 3-Methyl-8-(4-methylpiperidin-1-yl)-7-(3-phenylpropyl)-1H-purine-2,6(3H,7H)-dione, 3-Isobutyl-1-methyl-9-phenethyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione. 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 C21H27N5O2?
C21H27N5O2 has a degree of unsaturation of 11. 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.