Molecular formula
C20H21N3O
227 compounds have this formula on CompoundList.
- Molar mass
- 319.41g/mol
- Monoisotopic mass
- 319.1685Da
- Atoms
- 45
- Elements
- 4
- Rings plus double bonds
- 12
The formula C20H21N3O describes a molecule made of 20 carbon atoms, 21 hydrogen atoms, 3 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 × 2075.21%12.011 × 20 = 240.220 g/mol
- H Hydrogen × 216.63%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 313.16%14.007 × 3 = 42.021 g/mol
- O Oxygen × 15.01%15.999 × 1 = 15.999 g/mol
Look up another formula
Compounds with the formula C20H21N3O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 227 compounds
Imidafenacin
CAS 170105-16-5C20H21N3O
Cilansetron
CAS 120635-74-7C20H21N3O
1-Carbazol-9-yl-3-(3,5-dimethylpyrazol-1-yl)-propan-2-ol
CAS 300389-96-2C20H21N3O
![[1-(3-Methylphenyl)-5-benzimidazolyl]-(1-piperidinyl)methanone chemical structure, C20H21N3O, CAS 451496-96-1](/s/YQNOQZALLOQMPY-UHFFFAOYSA-N.svg)
[1-(3-Methylphenyl)-5-benzimidazolyl]-(1-piperidinyl)methanone
CAS 451496-96-1C20H21N3O
![3-[4-(Diphenylmethyl)piperazin-1-yl]-3-oxopropanenitrile chemical structure, C20H21N3O, CAS 313386-55-9](/s/SGVXWYLWBLENCP-UHFFFAOYSA-N.svg)
3-[4-(Diphenylmethyl)piperazin-1-yl]-3-oxopropanenitrile
CAS 313386-55-9C20H21N3O
![5-[(4-Phenylpiperazin-1-yl)methyl]quinolin-8-ol chemical structure, C20H21N3O, CAS 514185-14-9](/s/JGIYPOIEJZBYNH-UHFFFAOYSA-N.svg)
5-[(4-Phenylpiperazin-1-yl)methyl]quinolin-8-ol
CAS 514185-14-9C20H21N3O
(E)-4-((4-Ethylbenzylidene)amino)-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one
CAS 324067-76-7C20H21N3O
![9,9-Dimethyl-6-pyridin-3-yl-6,8,10,11-tetrahydro-5H-benzo[b][1,4]benzodiazepin-7-one chemical structure, C20H21N3O, CAS 330958-08-2](/s/OXHCYXWMAGJQFK-UHFFFAOYSA-N.svg)
9,9-Dimethyl-6-pyridin-3-yl-6,8,10,11-tetrahydro-5H-benzo[b][1,4]benzodiazepin-7-one
CAS 330958-08-2C20H21N3O
![9,9-Dimethyl-6-pyridin-2-yl-6,8,10,11-tetrahydro-5H-benzo[b][1,4]benzodiazepin-7-one chemical structure, C20H21N3O, CAS 332898-11-0](/s/LQLJKFQIQRAIOP-UHFFFAOYSA-N.svg)
9,9-Dimethyl-6-pyridin-2-yl-6,8,10,11-tetrahydro-5H-benzo[b][1,4]benzodiazepin-7-one
CAS 332898-11-0C20H21N3O
![2-[2-(Diethylamino)ethyl]indeno[1,2,3-de]phthalazin-3(2H)-one chemical structure, C20H21N3O, CAS 442567-76-2](/s/XNRPWZMOVUAHLY-UHFFFAOYSA-N.svg)
2-[2-(Diethylamino)ethyl]indeno[1,2,3-de]phthalazin-3(2H)-one
CAS 442567-76-2C20H21N3O
1-(4-Methoxyphenyl)-4-(1-piperidinyl)phthalazine
CAS 352326-52-4C20H21N3O
1-Benzyl-4-(1-ethyl-1H-1,3-benzodiazol-2-yl)pyrrolidin-2-one
CAS 847396-34-3C20H21N3O
N-(2-Furylmethylene)-4-(1-naphthylmethyl)-1-piperazinamine
CAS 306952-18-1C20H21N3O
2,6-Dimethyl-4-(2-phenylquinazolin-4-yl)morpholine
CAS 385420-63-3C20H21N3O
1-(3,5-Dimethylphenyl)-4-(1-methylbenzimidazol-2-yl)pyrrolidin-2-one
CAS 847396-70-7C20H21N3O
2-(1H-Indol-3-yl)-1-(4-phenylpiperazin-1-yl)ethanone
CAS 81807-97-8C20H21N3O
4-(3-Benzhydryl-1,2,4-oxadiazol-5-yl)piperidine
CAS 849925-02-6C20H21N3O
2-(4-(4-Methylpiperidin-1-yl)quinazolin-2-yl)phenol
CAS 354993-43-4C20H21N3O
N,N-Diethyl-4,5-diphenyl-1H-imidazole-1-carboxamide
CAS 431933-98-1C20H21N3O
![3-[(4-Benzoyl-1-piperazinyl)methyl]-1H-indole chemical structure, C20H21N3O, CAS 353772-99-3](/s/IUSKODVEAJAQAA-UHFFFAOYSA-N.svg)
3-[(4-Benzoyl-1-piperazinyl)methyl]-1H-indole
CAS 353772-99-3C20H21N3O
1-(3,4-Dimethylphenyl)-4-(1-methyl-1H-1,3-benzodiazol-2-yl)pyrrolidin-2-one
CAS 847394-78-9C20H21N3O
![1-[4-(1H-Benzoimidazol-2-yl)-piperidin-1-yl]-2-phenyl-ethanone chemical structure, C20H21N3O, CAS 845539-67-5](/s/ZHTYCROTRDJXNO-UHFFFAOYSA-N.svg)
1-[4-(1H-Benzoimidazol-2-yl)-piperidin-1-yl]-2-phenyl-ethanone
CAS 845539-67-5C20H21N3O
(4-Benzylpiperazino)(1H-indol-3-yl)methanone
CAS 137643-31-3C20H21N3O
1-(2,3-Dimethylphenyl)-4-(1-methylbenzimidazol-2-yl)pyrrolidin-2-one
CAS 847395-53-3C20H21N3O
- N-[2-(Dimethylamino)-2-phenylethyl]quinoline-2-carboxamide731814-93-0C20H21N3O
- (E)-2-Cyano-N-cyclohexyl-3-(1-phenylpyrrol-2-yl)prop-2-enamide1164481-99-5C20H21N3O
- 1-(1H-Indol-3-yl)-2-(4-phenylpiperazin-1-yl)ethanone371930-76-6C20H21N3O
- 5-Phenyl-2-[(4-phenylpiperazin-1-yl)methyl]-1,3-oxazole65385-19-5C20H21N3O
- N~9~-(2-methoxyphenyl)-5,6,7,8-tetrahydroacridine-2,9-diamine896630-90-3C20H21N3O
- 2-Benzyl-4-[4-(dimethylamino)benzylidene]-5-methyl-2,4-dihydro-3H-pyrazol-3-one1164470-00-1C20H21N3O
- N,1-dibenzyl-3,5-dimethylpyrazole-4-carboxamide882141-33-5C20H21N3O
- 3,5-Dimethyl-1-phenyl-N-(2-phenylethyl)pyrazole-4-carboxamide956362-09-7C20H21N3O
- Ethanone,1-(1H-indol-6-yl)-2-(4-phenyl-1-piperazinyl)-904452-89-7C20H21N3O
- N-[1-(4-Imidazol-1-ylphenyl)ethyl]-2,4-dimethylbenzamide1016330-09-8C20H21N3O
- 2-(4-(2-Methylpiperidin-1-yl)quinazolin-2-yl)phenol378752-33-1C20H21N3O
- 2-Naphthalenol, 1-[[4-(diethylamino)phenyl]azo]-4536-70-3C20H21N3O
- (4-Benzylpiperazin-1-yl)(1H-indol-2-yl)methanone41717-13-9C20H21N3O
- 2-[4-(3-Methylpiperidin-1-yl)quinazolin-2-yl]phenol442653-02-3C20H21N3O
- 2-(4-Methoxyphenyl)-4-(piperidin-1-yl)quinazoline503432-75-5C20H21N3O
- 1-[2-(1-Benzyl-1H-benzimidazol-2-yl)pyrrolidin-1-yl]ethanone920114-51-8C20H21N3O
- (4-Benzylpiperazin-1-yl)(1H-indol-5-yl)methanone353522-46-0C20H21N3O
- 7-[Piperidin-1-yl(pyridin-4-yl)methyl]quinolin-8-ol315697-77-9C20H21N3O
- 8-Quinolinecarboxamide, N-(2-(dimethylamino)ethyl)-2-phenyl-107027-12-3C20H21N3O
- 4-(1-Methyl-1H-benzimidazol-2-yl)-1-(2-phenylethyl)pyrrolidin-2-one876901-39-2C20H21N3O
- 1-(3,4-Dimethylphenyl)-3-[(2-phenylethyl)amino]-1,2-dihydropyrazin-2-one895121-56-9C20H21N3O
- 1-(2-Ethylphenyl)-4-(1-methyl-1H-benzo[d]imidazol-2-yl)pyrrolidin-2-one876723-96-5C20H21N3O
- Lek 8804153415-44-2C20H21N3O
- N-(3-Methylbutyl)-2-(pyridin-2-yl)quinoline-4-carboxamide690217-72-2C20H21N3O
- 2-[4-(Azepan-1-ium-1-yl)quinazolin-2-yl]phenolate332850-83-6C20H21N3O
- 1-Phenyl-3-(6,7,8,9-tetrahydro-5H-carbazol-3-ylmethyl)urea852140-76-2C20H21N3O
- 5-HT3 antagonist 3120635-47-4C20H21N3O
- 6-(2-Phenylpropen-3-yl)-4,5,6,7-tetrahydro-5-methylimidazo-(4,5,1-jk)(1,4)-benzodiazepin-2(1H)-one131515-12-3C20H21N3O
- N-(Butan-2-yl)-N-methyl-4-phenylquinazoline-2-carboxamide89242-57-9C20H21N3O
- N-((1,3-Dimethyl-1H-pyrazol-4-yl)methyl)-N-methyl-[1,1'-biphenyl]-4-carboxamide942723-48-0C20H21N3O
- 1-{[4-(Pyridin-2-yl)piperazin-1-yl]methyl}naphthalen-2-ol315684-31-2C20H21N3O
- 6-(E-3-Phenyl-2-propen-1-yl)-4,5,6,7-tetrahydro-5-methylimidazo-(4,5,1-jk)(1,4)-benzodiazepin-2(1H)-one131515-08-7C20H21N3O
- 1H-Pyrazole-4-acetamide, 3,5-dimethyl-1-phenyl-N-(phenylmethyl)-125103-53-9C20H21N3O
- 3,5-Diphenyl-3-(1H-imidazl-1-ylmethyl)-2-methylisoxazolidine113614-46-3C20H21N3O
- N-[2-(1H-Benzimidazol-2-yl)phenyl]cyclohexanecarboxamide476281-09-1C20H21N3O
- 6-(Z-1-Phenylpropen-3-yl)-4,5,6,7-tetrahydro-5-methylimidazo-[4,5,1-jk][1,4]-benzodiazepin-2(1H)-one131515-14-5C20H21N3O
- 8-Cyclopentyl-7-methoxy-N-phenylquinazolin-2-amine342798-37-2C20H21N3O
- 1-Phenyl-4-[(2-phenyl-1,3-oxazol-4-yl)methyl]piperazine303111-46-8C20H21N3O
- 5-Phenyl-1-(piperidin-4-yl)-1,3-dihydro-2H-1,4-benzodiazepin-2-one93591-97-0C20H21N3O
- 4-[Methyl(propyl)amino]-N-(quinolin-3-yl)benzamide742696-62-4C20H21N3O
- N-(1-Isopropyl-3-methyl-1H-pyrazol-5-yl)-[1,1'-biphenyl]-4-carboxamide1172442-43-1C20H21N3O
- 2-((Bis(pyridin-2-ylmethyl)amino)methyl)-4-methylphenol155608-95-0C20H21N3O
- 8-Benzyl-1-phenyl-1,3,8-triazaspiro[4.5]dec-2-en-4-one974-42-5C20H21N3O
- 7,8,9,10-Tetrahydro-2,3-dimethyl-9-phenyl-imidazo[2,1-a]isoquinoline-6-carboxamide865458-51-1C20H21N3O
- 2-(4-Isopropylphenyl)-6-methylquinoline-4-carbohydrazide438221-46-6C20H21N3O
- 8-Quinolinecarboxamide, N-[2-(dimethylamino)ethyl]-3-phenyl-113431-33-7C20H21N3O
- 2-[4-(3,4-Dihydro-1H-isoquinolin-2-yl)-quinolin-2-ylamino]-ethanol591243-81-1C20H21N3O
- (4-Benzyl-piperazin-1-yl)-(1H-indol-7-yl)-methanone618104-60-2C20H21N3O
- 1-Phenyl-4-(1-propylbenzimidazol-2-yl)pyrrolidin-2-one615281-67-9C20H21N3O
- 1-(2,4-Dimethylphenyl)-4-(1-methyl-1H-1,3-benzodiazol-2-yl)pyrrolidin-2-one500266-57-9C20H21N3O
- 2-(4-tert-Butylphenyl)quinoline-4-carbohydrazide524933-35-5C20H21N3O
- 1-Ethyl-4-[1-benzylbenzimidazol-2-yl]pyrrolidin-2-one912890-58-5C20H21N3O
- 1-(4-Ethylphenyl)-4-(1-methyl-1H-benzo[d]imidazol-2-yl)pyrrolidin-2-one847394-58-5C20H21N3O
- 1-(2,5-Dimethylphenyl)-4-(1-methylbenzimidazol-2-yl)pyrrolidin-2-one847395-18-0C20H21N3O
- 2-(4-Isobutylphenyl)quinoline-4-carbohydrazide588680-37-9C20H21N3O
- 4-(1H-Benzimidazol-2-yl)-1-mesitylpyrrolidin-2-one847395-75-9C20H21N3O
- 1-Methyl-4-{1-[(4-methylphenyl)methyl]-1H-1,3-benzodiazol-2-yl}pyrrolidin-2-one915189-49-0C20H21N3O
- (2-Benzyl-benzoimidazol-1-yl)-piperidin-1-yl-methanone333311-47-0C20H21N3O
- 3-(4-tert-Butylphenyl)-2-cyano-N-[(pyridin-3-yl)methyl]prop-2-enamide333346-03-5C20H21N3O
- 4-(1-Ethyl-1H-benzo[d]imidazol-2-yl)-1-(p-tolyl)pyrrolidin-2-one577988-86-4C20H21N3O
- 4-(1-Ethyl-1H-benzo[d]imidazol-2-yl)-1-(m-tolyl)pyrrolidin-2-one578759-95-2C20H21N3O
- 1-(2,6-Dimethylphenyl)-4-(1-methylbenzimidazol-2-yl)pyrrolidin-2-one915188-36-2C20H21N3O
- (E)-3-(4-(tert-Butyl)phenyl)-2-cyano-N-(6-methylpyridin-2-yl)acrylamide496021-27-3C20H21N3O
- (Z)-2-(3-Methoxyphenyl)-3-(6-piperidino-3-pyridinyl)-2-propenenitrile866019-91-2C20H21N3O
- 3-Methyl-1-(naphthalen-1-ylmethyl)-5-(pyrrolidin-1-yl)-1H-pyrazole-4-carbaldehyde926189-81-3C20H21N3O
- [4-(1H-Indol-4-yl)piperazin-1-yl]-(4-methylphenyl)methanone882255-99-4C20H21N3O
- (1E)-1-Hydrazinylidene-4,4,6-trimethyl-6-phenyl-5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-2(1H)-one524047-07-2C20H21N3O
- 3,3-Dimethyl-11-(pyridin-4-yl)-2,3,4,5,10,11-hexahydro-1H-dibenzo[b,e][1,4]diazepin-1-one685134-82-1C20H21N3O
- N-[4-(1H-Imidazol-1-ylmethyl)phenyl]-2-phenylbutanamide893779-70-9C20H21N3O
- N-Mesityl-2-(3-phenyl-1H-pyrazol-1-yl)acetamide1354488-56-4C20H21N3O
- C.I. Basic Violet 14, carbinol76-82-4C20H21N3O
- Oxazole, 4,5-diphenyl-2-(4-methyl-1-piperazinyl)-20503-88-2C20H21N3O
- N-{2-[1-(2-Methylprop-2-enyl)benzimidazol-2-yl]ethyl}benzamide686736-23-2C20H21N3O
- N-[3-(1H-Imidazol-1-yl)propyl]-2,2-diphenylacetamide93668-70-3C20H21N3O
- 7-((1E)-2-Phenylvinyl)-2-pyrrolidinyl-6,7,8-trihydroquinazolin-5-one924864-38-0C20H21N3O
- 3-Cyano-4'-(4-methylpiperazinomethyl) benzophenone898783-50-1C20H21N3O
Frequently asked questions
What is the molar mass of C20H21N3O?
The molar mass of C20H21N3O is 319.41 g/mol, calculated from standard atomic weights for 20 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 319.1685 Da.
How many compounds have the formula C20H21N3O?
CompoundList lists 227 compounds with the molecular formula C20H21N3O, including Imidafenacin, Cilansetron, 1-Carbazol-9-yl-3-(3,5-dimethylpyrazol-1-yl)-propan-2-ol. 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 C20H21N3O?
C20H21N3O 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.