Molecular formula
C19H21N5O3
234 compounds have this formula on CompoundList.
- Molar mass
- 367.41g/mol
- Monoisotopic mass
- 367.1644Da
- Atoms
- 48
- Elements
- 4
- Rings plus double bonds
- 12
The formula C19H21N5O3 describes a molecule made of 19 carbon atoms, 21 hydrogen atoms, 5 nitrogen atoms and 3 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 × 1962.11%12.011 × 19 = 228.209 g/mol
- H Hydrogen × 215.76%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 519.06%14.007 × 5 = 70.035 g/mol
- O Oxygen × 313.06%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C19H21N5O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 234 compounds
Pyrazoloacridine
CAS 99009-20-8C19H21N5O3
![1-Ethyl-2-imino-5-oxo-N-(tetrahydro-2-furanylmethyl)-1,5-dihydro-2H-dipyrido[1,2-A:2,3-D]pyrimidine-3-carboxamide chemical structure, C19H21N5O3, CAS 510761-97-4](/s/GVNICLWLGFSBGH-UHFFFAOYSA-N.svg)
1-Ethyl-2-imino-5-oxo-N-(tetrahydro-2-furanylmethyl)-1,5-dihydro-2H-dipyrido[1,2-A:2,3-D]pyrimidine-3-carboxamide
CAS 510761-97-4C19H21N5O3
N-Allyl-2-imino-1-(2-methoxyethyl)-10-methyl-5-oxo-1,5-dihydro-2H-dipyrido(1,2-A:2,3-D)pyrimidine-3-carboxamide
CAS 371137-31-4C19H21N5O3
![2-Imino-N,10-dimethyl-5-oxo-1-(tetrahydro-2-furanylmethyl)-1,5-dihydro-2H-dipyrido[1,2-a:2,3-d]pyrimidine-3-carboxamide chemical structure, C19H21N5O3, CAS 510760-99-3](/s/SFAZATAMYDYBDM-UHFFFAOYSA-N.svg)
2-Imino-N,10-dimethyl-5-oxo-1-(tetrahydro-2-furanylmethyl)-1,5-dihydro-2H-dipyrido[1,2-a:2,3-d]pyrimidine-3-carboxamide
CAS 510760-99-3C19H21N5O3
2-((1,4-Dimethylpiperazin-2-ylidene)amino)-5-nitro-N-phenylbenzamide
CAS 1613465-33-0C19H21N5O3
1-Allyl-2-imino-10-oxo-1,10-dihydro-2H-1,9,10a-triaza-anthracene-3-carboxylic acid (3-methoxy-propyl)-amide
CAS 371132-42-2C19H21N5O3
![3-(3,4-Dimethylphenyl)-2-[(4,6-dimethylpyrimidin-2-yl)amino]-6-oxo-3,4,5,6-tetrahydropyrimidine-4-carboxylic acid chemical structure, C19H21N5O3, CAS 1009500-37-1](/s/NBVXJMFETHPWHP-UHFFFAOYSA-N.svg)
3-(3,4-Dimethylphenyl)-2-[(4,6-dimethylpyrimidin-2-yl)amino]-6-oxo-3,4,5,6-tetrahydropyrimidine-4-carboxylic acid
CAS 1009500-37-1C19H21N5O3
1,3-DI-ME-7-(2-Oxo-2-PH-ET)-8-(1-pyrrolidinyl)-3,7-dihydro-1H-purine-2,6-dione
CAS 476481-38-6C19H21N5O3
![N-[(E)-[2-(Azepan-1-yl)-5-nitrophenyl]methylideneamino]pyridine-2-carboxamide chemical structure, C19H21N5O3, CAS 340695-71-8](/s/MYNQQQXSMDMENI-KGENOOAVSA-N.svg)
N-[(E)-[2-(Azepan-1-yl)-5-nitrophenyl]methylideneamino]pyridine-2-carboxamide
CAS 340695-71-8C19H21N5O3
![4-(4-{[2-(Dimethylamino)ethyl]amino}-3-nitrophenyl)-2-methylphthalazin-1(2H)-one chemical structure, C19H21N5O3, CAS 577764-90-0](/s/DPSCHHXSBYZRON-UHFFFAOYSA-N.svg)
4-(4-{[2-(Dimethylamino)ethyl]amino}-3-nitrophenyl)-2-methylphthalazin-1(2H)-one
CAS 577764-90-0C19H21N5O3
3-(3-Nitro-1,2,4-triazol-1-yl)-N-phenyladamantane-1-carboxamide
CAS 445017-23-2C19H21N5O3
![2-[1-(4-Methylphenyl)-4-oxopyrazolo[3,4-d]pyrimidin-5-yl]-N-(oxolan-2-ylmethyl)acetamide chemical structure, C19H21N5O3, CAS 863446-83-7](/s/FHIKGLNJPMUADA-UHFFFAOYSA-N.svg)
2-[1-(4-Methylphenyl)-4-oxopyrazolo[3,4-d]pyrimidin-5-yl]-N-(oxolan-2-ylmethyl)acetamide
CAS 863446-83-7C19H21N5O3
![[2-(4-Methylanilino)-2-oxoethyl] 3-(5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-6-yl)propanoate chemical structure, C19H21N5O3, CAS 852677-58-8](/s/RYMSGWJKGLQVSU-UHFFFAOYSA-N.svg)
[2-(4-Methylanilino)-2-oxoethyl] 3-(5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-6-yl)propanoate
CAS 852677-58-8C19H21N5O3
![9-Benzyl-1-methyl-3-(2-oxopropyl)-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione chemical structure, C19H21N5O3, CAS 873076-94-9](/s/INOYCOSWCWLKIQ-UHFFFAOYSA-N.svg)
9-Benzyl-1-methyl-3-(2-oxopropyl)-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione
CAS 873076-94-9C19H21N5O3
![N-Allyl-2-imino-1-(3-methoxypropyl)-5-oxo-1,5-dihydro-2H-dipyrido[1,2-a:2,3-d]pyrimidine-3-carboxamide chemical structure, C19H21N5O3, CAS 510762-65-9](/s/XRKCIGJCYXZVQV-UHFFFAOYSA-N.svg)
N-Allyl-2-imino-1-(3-methoxypropyl)-5-oxo-1,5-dihydro-2H-dipyrido[1,2-a:2,3-d]pyrimidine-3-carboxamide
CAS 510762-65-9C19H21N5O3
3(1H-1,2,3-Benzotriazol-1-yl)N'-(1-(3,4-dimethoxy-PH)ethylidene)propanohydrazide
CAS 452089-88-2C19H21N5O3
![[2-[Benzyl(propan-2-yl)amino]-2-oxoethyl] 7-methyl-[1,2,4]triazolo[1,5-a]pyrimidine-2-carboxylate chemical structure, C19H21N5O3, CAS 783316-00-7](/s/LNEIODLLFWMGDG-UHFFFAOYSA-N.svg)
[2-[Benzyl(propan-2-yl)amino]-2-oxoethyl] 7-methyl-[1,2,4]triazolo[1,5-a]pyrimidine-2-carboxylate
CAS 783316-00-7C19H21N5O3
1-(2-Methoxyphenyl)-3-(4-pyrimidin-2-ylpiperazin-1-yl)pyrrolidine-2,5-dione
CAS 313482-80-3C19H21N5O3
![N1-(3-(1H-imidazol-1-yl)propyl)-N2-(2-oxo-2,4,5,6-tetrahydro-1H-pyrrolo[3,2,1-ij]quinolin-8-yl)oxalamide chemical structure, C19H21N5O3, CAS 898411-29-5](/s/BEPMZGNLDXKVHN-UHFFFAOYSA-N.svg)
N1-(3-(1H-imidazol-1-yl)propyl)-N2-(2-oxo-2,4,5,6-tetrahydro-1H-pyrrolo[3,2,1-ij]quinolin-8-yl)oxalamide
CAS 898411-29-5C19H21N5O3
1H-Imidazo(2,1-f)purine-2,4(3H,8H)-dione, 8-(3-methoxypropyl)-1,3-dimethyl-7-phenyl-
CAS 376383-74-3C19H21N5O3
1-Methyl-3-(1-(5-methylisoxazole-3-carbonyl)piperidin-3-yl)-4-phenyl-1H-1,2,4-triazol-5(4H)-one
CAS 1309257-66-6C19H21N5O3
1-(2-Hydroxy-2-(2-methoxyphenyl)ethyl)-N-(1-(pyridin-3-yl)ethyl)-1H-1,2,3-triazole-4-carboxamide
CAS 1396678-30-0C19H21N5O3
1-(Furan-2-ylmethyl)-3-(1-(3-(pyridin-4-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)urea
CAS 1396865-01-2C19H21N5O3
N-(3-Methoxyphenethyl)-5-methyl-1-(4-methyl-6-oxo-1,6-dihydropyrimidin-2-yl)-1H-pyrazole-4-carboxamide
CAS 1172099-56-7C19H21N5O3
- 3-(2-Methoxyethyl)-1,6,7-trimethyl-8-phenyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione896067-88-2C19H21N5O3
- 8-Butyl-7-(4-methoxyphenyl)-1-methyl-1H,2H,3H,4H,8H-imidazo[1,2-g]purine-2,4-dione1040666-51-0C19H21N5O3
- 2-(4-Ethoxyphenyl)-5-[2-oxo-2-(pyrrolidin-1-yl)ethyl]pyrazolo[1,5-d][1,2,4]triazin-4(5H)-one1020969-70-3C19H21N5O3
- 2,6-Dihydro-2-(2-(diethylamino)ethyl)-5-nitropyrazolo(3,4,5-kl)acridin-9-ol99008-65-8C19H21N5O3
- 2-{4-Methyl-7-oxo-1-phenyl-1H,6H,7H-pyrazolo[3,4-d]pyridazin-6-yl}-N-[(oxolan-2-yl)methyl]acetamide942008-65-3C19H21N5O3
- N-((1-(4-Ethoxyphenyl)-1H-tetrazol-5-yl)methyl)-2-(p-tolyloxy)acetamide1005305-78-1C19H21N5O3
- N-[(4-Methoxyphenyl)methyl]-2-{1-oxo-1H,2H,7H,8H,9H,10H-[1,2,4]triazino[4,5-b]indazol-2-yl}acetamide1030108-80-5C19H21N5O3
- 3-Methyl-7-(2-oxo-2-phenylethyl)-8-(piperidin-1-yl)-1H-purine-2,6(3H,7H)-dione123519-05-1C19H21N5O3
- (R)-2-Amino-1-ethyl-7-(3-hydroxy-4-methoxy-3-methylbut-1-yn-1-yl)-3-(1H-imidazol-2-yl)-1,8-naphthyridin-4(1H)-one1412453-70-3C19H21N5O3
- Ethyl (5-(((dimethylamino)methylene)amino)-3-phenyl-2H-pyrido(4,3-b)-1,4-oxazin-7-yl)carbamate86970-62-9C19H21N5O3
- 1-(4-Methoxyphenyl)-3-(4-pyrimidin-2-ylpiperazin-1-yl)pyrrolidine-2,5-dione299408-45-0C19H21N5O3
- Ethyl 7-[(E)-2-(dimethylamino)vinyl]-2-(4-methoxyphenyl)[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate1374510-91-4C19H21N5O3
- Methyl 4-[[5-[(ethylamino)carbonyl]-2-methylphenyl]amino]-5-methylpyrrolo[2,1-f][1,2,4]triazine-6-carboxylate427877-58-5C19H21N5O3
- 8-(Furan-2-ylmethyl)-1,6,7-trimethyl-3-(2-methylallyl)-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione899414-70-1C19H21N5O3
- 2-Ethyl-6-(3-methoxyphenyl)-4,7,8-trimethylpurino[7,8-a]imidazole-1,3-dione877644-86-5C19H21N5O3
- 2-Imino-1,10-dimethyl-5-oxo-N-((tetrahydrofuran-2-yl)methyl)-2,5-dihydro-1H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide797796-92-0C19H21N5O3
- 8-(2-Hydroxyethyl)-1,7-dimethyl-3-phenethyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione915927-43-4C19H21N5O3
- 2-Ethyl-6-(4-methoxyphenyl)-4,7,8-trimethylpurino[7,8-a]imidazole-1,3-dione877810-33-8C19H21N5O3
- 6-Imino-7-(2-methoxyethyl)-13-methyl-2-oxo-N-prop-2-enyl-1,7,9-triazatricyclo[8.4.0.03,8]tetradeca-3(8),4,9,11,13-pentaene-5-carboxamide842963-41-1C19H21N5O3
- N-(4-Ethoxyphenyl)-3-(2-methoxyphenyl)-2-(2H-tetrazol-5-yl)propanamide483993-76-6C19H21N5O3
- 3-(2-Methoxyethyl)-1,7-dimethyl-8-(p-tolyl)-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione896857-09-3C19H21N5O3
- 3-(2-Methoxyethyl)-1,7-dimethyl-8-(o-tolyl)-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione900282-72-6C19H21N5O3
- 8-(4-Ethoxyphenyl)-3-ethyl-1,7-dimethyl-1,3,5-trihydro-4-imidazolino[1,2-h]pur ine-2,4-dione877644-08-1C19H21N5O3
- 3-Benzyl-8-(3-hydroxypropyl)-1,7-dimethyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione903188-77-2C19H21N5O3
- 8-(4-Methoxyphenyl)-1,7-dimethyl-3-propyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione877643-98-6C19H21N5O3
- 8-(4-Ethoxyphenyl)-1,3,6,7-tetramethyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione896321-61-2C19H21N5O3
- 2-Ethyl-6-[(4-methoxyphenyl)methyl]-4,7-dimethylpurino[7,8-a]imidazole-1,3-dione876902-41-9C19H21N5O3
- 8-(4-Methoxybenzyl)-1,3,6,7-tetramethyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione876902-48-6C19H21N5O3
- 9-(4-Methoxyphenyl)-1-methyl-3-prop-2-enyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione848204-23-9C19H21N5O3
- 6-(4-Ethoxyphenyl)-4-methyl-2-prop-2-enyl-7,8-dihydropurino[7,8-a]imidazole-1,3-dione893952-60-8C19H21N5O3
- 2-(3-Hydroxypropyl)-4,7,8-trimethyl-6-phenylpurino[7,8-a]imidazole-1,3-dione896828-10-7C19H21N5O3
- 6-(4-Methoxyphenyl)-4-methyl-2-(2-methylprop-2-enyl)-7,8-dihydropurino[7,8-a]imidazole-1,3-dione893950-49-7C19H21N5O3
- 2,4,7-Trimethyl-6-(2-propoxyphenyl)purino[7,8-a]imidazole-1,3-dione887697-14-5C19H21N5O3
- 2-[2-(3,5-Dimethylpyrazol-1-yl)-4-methyl-6-oxopyrimidin-1-yl]-N-(4-methoxyphenyl)acetamide1001798-18-0C19H21N5O3
- 6-(2-Ethoxyethyl)-2,4-dimethyl-7-phenylpurino[7,8-a]imidazole-1,3-dione919037-74-4C19H21N5O3
- 3-Benzyl-8-(2-methoxyethyl)-1,7-dimethyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione887464-98-4C19H21N5O3
- 5-Amino-N-(3,4-dimethoxyphenyl)-1-(4-methylbenzyl)-1H-1,2,3-triazole-4-carboxamide899972-73-7C19H21N5O3
- 6-[4-[(E)-But-2-enoxy]phenyl]-2,4-dimethyl-7,8-dihydropurino[7,8-a]imidazole-1,3-dione1021029-71-9C19H21N5O3
- 1-(3,4-Dimethylphenyl)-5-(2-morpholin-4-yl-2-oxoethyl)pyrazolo[3,4-d]pyrimidin-4-one841211-82-3C19H21N5O3
- N-(2,5-Dimethylphenyl)-3-(4-hydroxy-3-methoxyphenyl)-2-(2H-tetrazol-5-yl)propanamide483995-72-8C19H21N5O3
- N-(2-Ethylphenyl)-3-(4-hydroxy-3-methoxyphenyl)-2-(2H-tetrazol-5-yl)propanamide483995-74-0C19H21N5O3
- 3-(2,4-Dimethoxyphenyl)-N-(3-methylphenyl)-2-(2H-tetrazol-5-yl)propanamide483994-90-7C19H21N5O3
- 3-(2,4-Dimethoxyphenyl)-N-(2-methylphenyl)-2-(2H-tetrazol-5-yl)propanamide483994-91-8C19H21N5O3
- 3-(2,5-Dimethoxyphenyl)-N-(2-methylphenyl)-2-(2H-tetrazol-5-yl)propanamide483995-21-7C19H21N5O3
- 3-(2,3-Dimethoxyphenyl)-N-(2-methylphenyl)-2-(2H-tetrazol-5-yl)propanamide483994-67-8C19H21N5O3
- (2-Imino-10-methyl-5-oxo-1-prop-2-enyl(1,6-dihydropyridino[2,3-d]pyridino[1,2-a]pyrimidin-3-yl))-N-(2-methoxyethyl)carboxamide369400-92-0C19H21N5O3
- 8-(2-Methoxy-5-methylphenyl)-1,3,6,7-tetramethyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione876673-02-8C19H21N5O3
- 2-(3-Hydroxypropyl)-4,7-dimethyl-6-(3-methylphenyl)purino[7,8-a]imidazole-1,3-dione896825-05-1C19H21N5O3
- 6-Benzyl-2-(3-hydroxypropyl)-4,7-dimethylpurino[7,8-a]imidazole-1,3-dione896856-57-8C19H21N5O3
- 2-(3-Hydroxypropyl)-4,7-dimethyl-6-(4-methylphenyl)purino[7,8-a]imidazole-1,3-dione899402-12-1C19H21N5O3
- 4-(((6-(4-Carbamimidoylphenyl)pyridazin-4-yl)(hydroxy)methylidene)amino)cyclohexane-1-carboxylic acid150594-92-6C19H21N5O3
- 6-(2-Ethoxyphenyl)-2-ethyl-4,7-dimethylpurino[7,8-a]imidazole-1,3-dione878728-40-6C19H21N5O3
- 1-(2,3-Dimethylphenyl)-5-(2-morpholin-4-yl-2-oxoethyl)pyrazolo[3,4-d]pyrimidin-4-one887458-35-7C19H21N5O3
- 5-Amino-1-benzyl-N-(3,4-dimethoxybenzyl)-1H-1,2,3-triazole-4-carboxamide899972-69-1C19H21N5O3
- 8-(3-Methoxyphenyl)-1,7-dimethyl-3-propyl-1H,2H,3H,4H,8H-imidazo[1,2-g]purine-2,4-dione877643-92-0C19H21N5O3
- 2-Imino-N,8-dimethyl-5-oxo-1-(tetrahydrofuran-2-ylmethyl)-1,5-dihydro-2H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide865411-84-3C19H21N5O3
- 1-Methyl-9-(4-methylphenyl)-3-(2-oxopropyl)-1H,2H,3H,4H,6H,7H,8H,9H-pyrimido[1,2-g]purine-2,4-dione844653-77-6C19H21N5O3
- 8-(2-Hydroxyethyl)-1,7-dimethyl-3-(4-methylbenzyl)-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione915933-47-0C19H21N5O3
- 3-Butyl-8-(2-hydroxyphenyl)-1,7-dimethyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione916036-13-0C19H21N5O3
- 8-(2-Hydroxyethyl)-1,7-dimethyl-3-(2-methylbenzyl)-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione919008-89-2C19H21N5O3
- 8-(2-Methoxyphenyl)-1,7-dimethyl-3-propyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione887466-01-5C19H21N5O3
- 8-(2-Hydroxyphenyl)-1,6,7-trimethyl-3-propyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione915927-68-3C19H21N5O3
- 3-(4-Oxo-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-((tetrahydrofuran-2-yl)methyl)propanamide946282-86-6C19H21N5O3
- 3-Butyl-8-(4-hydroxyphenyl)-1,7-dimethyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione949708-11-6C19H21N5O3
- 3-(2,4-Dimethoxyphenyl)-N-(4-methylphenyl)-2-(2H-tetrazol-5-yl)propanamide483994-89-4C19H21N5O3
- N-(3,5-Dimethylphenyl)-3-(4-hydroxy-3-methoxyphenyl)-2-(2H-tetrazol-5-yl)propanamide483995-71-7C19H21N5O3
- 2,4-Dimethyl-6-[3-(2-methylprop-2-enoxy)phenyl]-7,8-dihydropurino[7,8-a]imidazole-1,3-dione1021208-73-0C19H21N5O3
- 3-[(2E)-But-2-en-1-yl]-8-[(furan-2-yl)methyl]-1,6,7-trimethyl-1H,2H,3H,4H,8H-imidazo[1,2-g]purine-2,4-dione946225-90-7C19H21N5O3
- 8-(4-Isopropoxyphenyl)-1,3,7-trimethyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione946226-02-4C19H21N5O3
- 1,7-Dimethyl-3-(2-oxopropyl)-9-phenyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione847046-27-9C19H21N5O3
- DAPI dilactate28718-91-4C19H21N5O3
- 1-(Furan-2-ylmethyl)-3-(1-((5-phenyl-1,2,4-oxadiazol-3-yl)methyl)pyrrolidin-3-yl)urea1396781-62-6C19H21N5O3
- 2-(2-Methoxy-4-methylphenoxy)-N-[6-(2-methyl-1H-imidazol-1-yl)pyrimidin-4-yl]propanamide1797081-42-5C19H21N5O3
- N-Cyclopentyl[1-(2-hydroxyethyl)-2-imino-5-oxo(1,6-dihydropyridino[1,2-a]pyrid ino[2,3-d]pyrimidin-3-yl)]carboxamide614747-53-4C19H21N5O3
- 1-Methyl-9-(3-methylphenyl)-3-(2-oxopropyl)-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione847854-75-5C19H21N5O3
- N-(2-Ethoxyphenyl)-3-(4-methoxyphenyl)-2-(1H-tetrazol-5-yl)propanamide483993-18-6C19H21N5O3
Frequently asked questions
What is the molar mass of C19H21N5O3?
The molar mass of C19H21N5O3 is 367.41 g/mol, calculated from standard atomic weights for 19 carbon atoms, 21 hydrogen atoms, 5 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 367.1644 Da.
How many compounds have the formula C19H21N5O3?
CompoundList lists 234 compounds with the molecular formula C19H21N5O3, including Pyrazoloacridine, 1-Ethyl-2-imino-5-oxo-N-(tetrahydro-2-furanylmethyl)-1,5-dihydro-2H-dipyrido[1,2-A:2,3-D]pyrimidine-3-carboxamide, N-Allyl-2-imino-1-(2-methoxyethyl)-10-methyl-5-oxo-1,5-dihydro-2H-dipyrido(1,2-A:2,3-D)pyrimidine-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 C19H21N5O3?
C19H21N5O3 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.