Molecular formula
C21H21N3O3
394 compounds have this formula on CompoundList.
- Molar mass
- 363.42g/mol
- Monoisotopic mass
- 363.1583Da
- Atoms
- 48
- Elements
- 4
- Rings plus double bonds
- 13
The formula C21H21N3O3 describes a molecule made of 21 carbon atoms, 21 hydrogen atoms, 3 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 × 2169.41%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 215.82%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 311.56%14.007 × 3 = 42.021 g/mol
- O Oxygen × 313.21%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C21H21N3O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 394 compounds
Ozenoxacin
CAS 245765-41-7C21H21N3O3
1-(4-(2-(5-Methylfuran-2-yl)quinoline-4-carbonyl)piperazin-1-yl)ethan-1-one
CAS 1031195-19-3C21H21N3O3
4-(Azepan-1-yl)-3-nitro-1-phenylquinolin-2(1H)-one
CAS 384368-99-4C21H21N3O3
4-(4-Methylpiperidin-1-yl)-3-nitro-1-phenylquinolin-2(1H)-one
CAS 385393-29-3C21H21N3O3
![2-(4-Ethoxyanilino)-N-[(E)-(2-hydroxynaphthalen-1-yl)methylideneamino]acetamide chemical structure, C21H21N3O3, CAS 326001-01-8](/s/JWRJGCUSLSJMMD-YDZHTSKRSA-N.svg)
2-(4-Ethoxyanilino)-N-[(E)-(2-hydroxynaphthalen-1-yl)methylideneamino]acetamide
CAS 326001-01-8C21H21N3O3
![9,9-Dimethyl-6-(4-nitrophenyl)-6,8,10,11-tetrahydro-5H-benzo[b][1,4]benzodiazepin-7-one chemical structure, C21H21N3O3, CAS 82408-04-6](/s/UGGUUWQHYLAINX-UHFFFAOYSA-N.svg)
9,9-Dimethyl-6-(4-nitrophenyl)-6,8,10,11-tetrahydro-5H-benzo[b][1,4]benzodiazepin-7-one
CAS 82408-04-6C21H21N3O3
Spirotryprostatin B
CAS 182234-26-0C21H21N3O3
![1-(3,4-Dimethoxyphenyl)-3-[4-(pyridin-4-ylmethyl)phenyl]urea chemical structure, C21H21N3O3, CAS 332412-61-0](/s/GROMYFZLFCKVII-UHFFFAOYSA-N.svg)
1-(3,4-Dimethoxyphenyl)-3-[4-(pyridin-4-ylmethyl)phenyl]urea
CAS 332412-61-0C21H21N3O3
2-(3-Oxo-3-(4-phenylpiperazin-1-yl)propyl)isoindoline-1,3-dione
CAS 154501-30-1C21H21N3O3
![Butyl 2-(9-methoxyindolo[3,2-b]quinoxalin-6-yl)acetate chemical structure, C21H21N3O3, CAS 847380-69-2](/s/XEWIWJGUCZVXPD-UHFFFAOYSA-N.svg)
Butyl 2-(9-methoxyindolo[3,2-b]quinoxalin-6-yl)acetate
CAS 847380-69-2C21H21N3O3
![5-[2-(3,4-Dimethoxyphenyl)ethylamino]-2-(4-methylphenyl)-1,3-oxazole-4-carbonitrile chemical structure, C21H21N3O3, CAS 380594-29-6](/s/ZRODUQBCCKLIMP-UHFFFAOYSA-N.svg)
5-[2-(3,4-Dimethoxyphenyl)ethylamino]-2-(4-methylphenyl)-1,3-oxazole-4-carbonitrile
CAS 380594-29-6C21H21N3O3
N-(2-Morpholinophenyl)-2-(quinolin-8-yloxy)acetamide
CAS 796119-18-1C21H21N3O3
4-(3-Methyl-4-oxophthalazin-1-yl)-N-(oxolan-2-ylmethyl)benzamide
CAS 701229-29-0C21H21N3O3
Ethyl 2-(2,3-dihydro-1H-indol-1-yl)-4-oxo-6-phenyl-1,4,5,6-tetrahydro-5-pyrimidinecarboxylate
CAS 727385-47-9C21H21N3O3
![2-[2-Oxo-2-(4-p-tolyl-piperazin-1-yl)-ethyl]-isoindole-1,3-dione chemical structure, C21H21N3O3, CAS 53646-59-6](/s/PZHBVFYHTPRXAU-UHFFFAOYSA-N.svg)
2-[2-Oxo-2-(4-p-tolyl-piperazin-1-yl)-ethyl]-isoindole-1,3-dione
CAS 53646-59-6C21H21N3O3
![N-(4-Methylphenyl)-2-[methyl-(2-quinolin-8-yloxyacetyl)amino]acetamide chemical structure, C21H21N3O3, CAS 851609-97-7](/s/ASQQKVYZNOSBTM-UHFFFAOYSA-N.svg)
N-(4-Methylphenyl)-2-[methyl-(2-quinolin-8-yloxyacetyl)amino]acetamide
CAS 851609-97-7C21H21N3O3
![9,10-Dimethoxy-2-(2-methylanilino)-6,7-dihydropyrimido[6,1-a]isoquinolin-4-one chemical structure, C21H21N3O3, CAS 214358-62-0](/s/RZGBVVBGPZBBJS-UHFFFAOYSA-N.svg)
9,10-Dimethoxy-2-(2-methylanilino)-6,7-dihydropyrimido[6,1-a]isoquinolin-4-one
CAS 214358-62-0C21H21N3O3
![4-(3-Ethoxy-4-hydroxyphenyl)-3-methyl-5-(4-methylphenyl)-4,5-dihydropyrrolo[3,4-c]pyrazol-6(1H)-one chemical structure, C21H21N3O3, CAS 587005-40-1](/s/SYCGSKDDMSLKCH-UHFFFAOYSA-N.svg)
4-(3-Ethoxy-4-hydroxyphenyl)-3-methyl-5-(4-methylphenyl)-4,5-dihydropyrrolo[3,4-c]pyrazol-6(1H)-one
CAS 587005-40-1C21H21N3O3
5-Methyl-N-(4-morpholin-4-ylphenyl)-3-phenyl-1,2-oxazole-4-carboxamide
CAS 216984-51-9C21H21N3O3
2-(2-Oxo-2-(4-(o-tolyl)piperazin-1-yl)ethyl)isoindoline-1,3-dione
CAS 53646-61-0C21H21N3O3
2-(2-Amino-5-(4-methoxyphenyl)pyrimidin-4-yl)-5-((2-methylallyl)oxy)phenol
CAS 849921-02-4C21H21N3O3
2-(2-Amino-5-(2-methoxyphenyl)pyrimidin-4-yl)-5-((2-methylallyl)oxy)phenol
CAS 850228-85-2C21H21N3O3
![2-[3-(2-Methylphenyl)-1,2,4-oxadiazol-5-yl]-N-(oxolan-2-ylmethyl)benzamide chemical structure, C21H21N3O3, CAS 850728-28-8](/s/CJZHGSLDFMDCIS-UHFFFAOYSA-N.svg)
2-[3-(2-Methylphenyl)-1,2,4-oxadiazol-5-yl]-N-(oxolan-2-ylmethyl)benzamide
CAS 850728-28-8C21H21N3O3
![1-(1H-Indol-3-yl)-2-[4-(2-methoxyphenyl)piperazin-1-yl]ethane-1,2-dione chemical structure, C21H21N3O3, CAS 852367-24-9](/s/SFAHLIVFZUWUQZ-UHFFFAOYSA-N.svg)
1-(1H-Indol-3-yl)-2-[4-(2-methoxyphenyl)piperazin-1-yl]ethane-1,2-dione
CAS 852367-24-9C21H21N3O3
- N-(Oxolan-2-ylmethyl)-2-(1-oxo-4-phenylphthalazin-2-yl)acetamide684234-81-9C21H21N3O3
- 2-[3-(3-Methylphenyl)-1,2,4-oxadiazol-5-yl]-N-(oxolan-2-ylmethyl)benzamide850190-53-3C21H21N3O3
- N'-[1-(Cyclopropanecarbonyl)-3,4-dihydro-2H-quinolin-7-yl]-N-phenyloxamide898447-45-5C21H21N3O3
- [4-(2-Methoxy-phenyl)-piperazin-1-yl]-(5-phenyl-isoxazol-3-yl)-methanone725697-83-6C21H21N3O3
- 9,10-Dimethoxy-2-(3-methylanilino)-6,7-dihydropyrimido[6,1-a]isoquinolin-4-one847177-56-4C21H21N3O3
- 5-[(4-Propylphenoxy)methyl]-N'-(3-pyridinylmethylene)-2-furohydrazide445004-94-4C21H21N3O3
- 2-[3-(4-Methylphenyl)-1,2,4-oxadiazol-5-yl]-N-(oxolan-2-ylmethyl)benzamide849917-43-7C21H21N3O3
- 3-(1H-Benzoimidazol-2-yl)-8-diethylaminomethyl-7-hydroxy-chromen-2-one301308-65-6C21H21N3O3
- N-[2-(4-Acetylpiperazin-1-yl)phenyl]-1-benzofuran-2-carboxamide842117-92-4C21H21N3O3
- 3-[2-(2,3-Dihydroindol-1-yl)-2-oxoethyl]-5-methyl-5-(4-methylphenyl)imidazolidine-2,4-dione1008481-33-1C21H21N3O3
- [2-(N-Methylanilino)-2-oxoethyl] 3,5-dimethyl-1-phenylpyrazole-4-carboxylate956203-34-2C21H21N3O3
- N'-(2-Isopropoxybenzylidene)-5-methyl-3-phenyl-4-isoxazolecarbohydrazide444932-23-4C21H21N3O3
- [(1-Cyanocyclohexyl)carbamoyl]methyl 3-(quinolin-2-yl)prop-2-enoate926389-40-4C21H21N3O3
- 2-(2-(4-Benzylpiperazin-1-yl)-2-oxoethyl)isoindoline-1,3-dione349423-62-7C21H21N3O3
- 9,9-Dimethyl-6-(3-nitrophenyl)-6,8,10,11-tetrahydro-5H-benzo[b][1,4]benzodiazepin-7-one145628-71-3C21H21N3O3
- N-[2-(1H-Indol-3-yl)-ethyl]-2-(6-methyl-3-oxo-2,3-dihydro-benzo[1,4]oxazin-4-yl)-acetamide606119-80-6C21H21N3O3
- 3-[2-(2,3-Dihydroindol-1-yl)-2-oxoethyl]-5-ethyl-5-phenylimidazolidine-2,4-dione743470-89-5C21H21N3O3
- 2-[3-(4-Methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-(2-phenylethyl)acetamide899212-45-4C21H21N3O3
- N-(2,3-Dihydro-1H-inden-5-yl)-2-(4-methyl-2,5-dioxo-4-phenylimidazolidin-1-yl)acetamide956625-29-9C21H21N3O3
- 2-[1-Oxo-1-(4-phenylpiperazin-1-yl)propan-2-yl]isoindole-1,3-dione419539-09-6C21H21N3O3
- 1-Benzyl-3-nitro-4-(piperidin-1-yl)quinolin-2(1H)-one433325-56-5C21H21N3O3
- 5-(4-Methylpiperidin-1-yl)-2-[5-(phenoxymethyl)furan-2-yl]-1,3-oxazole-4-carbonitrile946378-30-9C21H21N3O3
- 5-(Piperidin-1-yl)-2-(5-((o-tolyloxy)methyl)furan-2-yl)oxazole-4-carbonitrile942033-38-7C21H21N3O3
- 2,3-Dimethoxy-N-(2-phenyl-2,4,5,6-tetrahydrocyclopenta[c]pyrazol-3-yl)benzamide1171337-09-9C21H21N3O3
- Kealiinine B700813-16-7C21H21N3O3
- Austamide34427-31-1C21H21N3O3
- 2-[3-(5-Ethyl-1,3,4-oxadiazol-2-yl)phenoxy]-1-(1,2,3,4-tetrahydroquinolin-1-yl)ethan-1-one946239-26-5C21H21N3O3
- 1-(1H-Indol-3-yl)-2-[4-(4-methoxyphenyl)piperazin-1-yl]ethane-1,2-dione96265-45-1C21H21N3O3
- Protuboxepin B1280192-23-5C21H21N3O3
- Dizatrifone92257-40-4C21H21N3O3
- 6-(1,3-Benzodioxol-5-yl)-9,9-dimethyl-6,8,10,11-tetrahydro-5H-pyrido[3,2-b][1,4]benzodiazepin-7-one705268-90-2C21H21N3O3
- 5-{[2-(4-Methoxyphenyl)ethyl]amino}-2-[(2-methylphenoxy)methyl]-1,3-oxazole-4-carbonitrile606948-50-9C21H21N3O3
- 1-(4-Methoxyphenyl)-3-[(2-methoxyphenyl)amino]-1,5,6,7-tetrahydro-4H-indazol-4-one903438-78-8C21H21N3O3
- N-[4-(3-Methyl-1,2,4-oxadiazol-5-yl)phenyl]-4-phenyloxane-4-carboxamide1226432-79-6C21H21N3O3
- GSHtracer1479071-34-5C21H21N3O3
- 5-{[2-(4-Methoxyphenyl)ethyl]amino}-2-[(3-methylphenoxy)methyl]-1,3-oxazole-4-carbonitrile606948-52-1C21H21N3O3
- N-(2-(3-(3-Phenylpropyl)ureido)phenyl)furan-2-carboxamide1207049-34-0C21H21N3O3
- N-(3-Methoxybenzyl)-2-(4-methyl-6-oxo-2-phenylpyrimidin-1(6H)-yl)acetamide1261009-67-9C21H21N3O3
- 3-(3-Cyanobenzamido)cyclohexyl phenylcarbamate1351609-15-8C21H21N3O3
- 2-(4-Nitrophenyl)-N-((2,3,4,9-tetrahydro-1H-carbazol-6-yl)methyl)acetamide852138-54-6C21H21N3O3
- 4-Phenyl-N-((3-phenyl-1,2,4-oxadiazol-5-yl)methyl)tetrahydro-2H-pyran-4-carboxamide1203148-69-9C21H21N3O3
- Quellenin2243042-31-9C21H21N3O3
- 8-(2-Methoxycarbonylamino-6-methylbenzyloxy)-2-methyl-3-(2-propynyl)imidazo(1,2-a)pyridine117525-13-0C21H21N3O3
- 3-(3,4-Dimethoxyphenethyl)-8-methyl-3H-pyrimido[5,4-b]indol-4(5H)-one400821-49-0C21H21N3O3
- 2-(2,3-Dioxo-4-(m-tolyl)-3,4-dihydropyrazin-1(2H)-yl)-N-phenethylacetamide898409-15-9C21H21N3O3
- N-(3,5-Dimethylphenyl)-2-[4-(4-methoxyphenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]acetamide1058373-61-7C21H21N3O3
- 6-(Furan-2-yl)-2-(4-(2-methylindolin-1-yl)-4-oxobutyl)pyridazin-3(2H)-one1021132-63-7C21H21N3O3
- 4-[5-(2-Ethoxyphenyl)-1,2,4-oxadiazol-3-yl]-1-(4-methylphenyl)pyrrolidin-2-one1172931-60-0C21H21N3O3
- 4-[5-(3,4-Dimethylphenyl)-1,2,4-oxadiazol-3-yl]-1-(4-methoxyphenyl)pyrrolidin-2-one1172412-00-8C21H21N3O3
- N-(2-Ethoxyphenyl)-2-(4-methyl-6-oxo-2-phenyl-1,6-dihydropyrimidin-1-yl)acetamide1775464-98-6C21H21N3O3
- 3-Phenoxy-N-[5-(5,6,7,8-tetrahydronaphthalen-2-yl)-1,3,4-oxadiazol-2-yl]propanamide851095-83-5C21H21N3O3
- N-Benzyl-2-[4-(2,3-dimethylphenyl)-2,3-dioxopyrazin-1-yl]acetamide898454-16-5C21H21N3O3
- N-(2,3-Dimethylphenyl)-2-[3-(3-methoxyphenyl)-6-oxopyridazin-1-yl]acetamide899753-27-6C21H21N3O3
- 4-Methoxy-6-oxo-1-phenyl-N-(4-propan-2-ylphenyl)pyridazine-3-carboxamide921557-59-7C21H21N3O3
- 4-Vinylbenzyl 1-(2-ethoxyphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxylate1040645-46-2C21H21N3O3
- N-(3-(6-Oxo-3-phenylpyridazin-1(6H)-yl)propyl)-2-phenoxyacetamide1021120-37-5C21H21N3O3
- N-(2-(3-(4-Ethoxyphenyl)-6-oxopyridazin-1(6H)-yl)ethyl)benzamide921805-57-4C21H21N3O3
- Methyl 3-(1H-indol-3-yl)-2-(1-methyl-4-oxo-2H-quinazolin-3-yl)propanoate84244-88-2C21H21N3O3
- Methyl 2-{2-[1-(4-methylphenyl)-5-oxopyrrolidin-3-yl]benzimidazolyl}acetate912889-78-2C21H21N3O3
- 3-(1H-Benzo[d]imidazol-2-yl)-8-((dimethylamino)methyl)-6-ethyl-7-hydroxy-4H-chromen-4-one210640-04-3C21H21N3O3
- 9,9-Dimethyl-6-(2-nitrophenyl)-6,8,10,11-tetrahydro-5H-benzo[b][1,4]benzodiazepin-7-one82408-12-6C21H21N3O3
- Ethyl 2-[2-(5-oxo-1-phenylpyrrolidin-3-yl)-1H-1,3-benzodiazol-1-yl]acetate912903-48-1C21H21N3O3
- Methyl 2-{2-[1-(3-methylphenyl)-5-oxopyrrolidin-3-yl]benzimidazolyl}acetate912902-16-0C21H21N3O3
- 2-(3-(2-Methoxyphenyl)-6-oxopyridazin-1(6H)-yl)-N-phenethylacetamide837394-05-5C21H21N3O3
- N-(4-Methoxyphenethyl)-2-(6-oxo-3-phenylpyridazin-1(6H)-yl)acetamide922901-49-3C21H21N3O3
- Methyl 4-[[(Z)-[1-(2,4-dimethylphenyl)-3-methyl-5-oxopyrazol-4-ylidene]methyl]amino]benzoate352681-65-3C21H21N3O3
- 2-(3-Morpholin-4-yl-3-oxopropyl)-4-phenylphthalazin-1-one694459-80-8C21H21N3O3
- 9-(4-Methoxyphenyl)-2-phenylhexahydro-1H-pyrazolo[1,2-a]pyrrolo[3,4-c]pyrazole-1,3(2H)-dione473577-02-5C21H21N3O3
- [4-(1,3-Benzodioxol-5-ylmethyl)piperazin-1-yl]-(1H-indol-2-yl)methanone921136-82-5C21H21N3O3
- Methyl 2-{2-[1-(2-methylphenyl)-5-oxopyrrolidin-3-yl]-1H-1,3-benzodiazol-1-yl}acetate912903-34-5C21H21N3O3
- (5Z)-5-[4-(Diethylamino)benzylidene]-1-phenylpyrimidine-2,4,6(1H,3H,5H)-trione5174-66-3C21H21N3O3
- N-{4-[3-(3,4-Dihydroisoquinolin-2(1H)-yl)-2,5-dioxopyrrolidin-1-yl]phenyl}acetamide406179-34-8C21H21N3O3
- 2,3-Dimethyl-6-(4-nitrophenyl)-5,6,8,9,10,11-hexahydrobenzo[b][1,4]benzodiazepin-7-one338748-17-7C21H21N3O3
- 6-(4-Methoxybenzyl)-4-(o-tolyl)-3,4,6,7-tetrahydro-1H-pyrrolo[3,4-d]pyrimidine-2,5-dione946270-52-6C21H21N3O3
- 3-(3-Hydroxypropyl)-2-[(1-methyl-2-oxo-2,3-dihydro-1H-indol-3-yl)methyl]quinazolin-4(3H)-one898603-92-4C21H21N3O3
- 1(6H)-Pyridazineacetamide, N-alpha-methylbenzyl-6-oxo-3-(p-tolyl)-55902-15-3C21H21N3O3
Frequently asked questions
What is the molar mass of C21H21N3O3?
The molar mass of C21H21N3O3 is 363.42 g/mol, calculated from standard atomic weights for 21 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 363.1583 Da.
How many compounds have the formula C21H21N3O3?
CompoundList lists 394 compounds with the molecular formula C21H21N3O3, including Ozenoxacin, 1-(4-(2-(5-Methylfuran-2-yl)quinoline-4-carbonyl)piperazin-1-yl)ethan-1-one, 4-(Azepan-1-yl)-3-nitro-1-phenylquinolin-2(1H)-one. 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 C21H21N3O3?
C21H21N3O3 has a degree of unsaturation of 13. 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.