Molecular formula
C21H21NO2
218 compounds have this formula on CompoundList.
- Molar mass
- 319.40g/mol
- Monoisotopic mass
- 319.1572Da
- Atoms
- 45
- Elements
- 4
- Rings plus double bonds
- 12
The formula C21H21NO2 describes a molecule made of 21 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom 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 × 2178.97%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 216.63%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 14.39%14.007 × 1 = 14.007 g/mol
- O Oxygen × 210.02%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C21H21NO2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 218 compounds
4-(3,5-Dimethylpiperidine-1-carbonyl)-9H-fluoren-9-one
CAS 325986-22-9C21H21NO2
Oxetorone
CAS 26020-55-3C21H21NO2
3-(1-Hydroxy-2-((4-phenylphenyl)methylamino)ethyl)phenol
CAS 775294-71-8C21H21NO2
1,3-Propanediol, 2-((3-fluoranthenylmethyl)amino)-2-methyl-
CAS 96404-52-3C21H21NO2
![N-[2-(2-Methylphenoxy)ethyl]-2-naphthalen-1-ylacetamide chemical structure, C21H21NO2, CAS 294652-72-5](/s/BYOAFSIQBODMPU-UHFFFAOYSA-N.svg)
N-[2-(2-Methylphenoxy)ethyl]-2-naphthalen-1-ylacetamide
CAS 294652-72-5C21H21NO2
3-(4-Ethoxyanilino)-1-(2-naphthyl)-1-propanone
CAS 477320-02-8C21H21NO2
3-(Benzyloxy)-2-methyl-1-(4-methylbenzyl)-4(1H)-pyridinone
CAS 338965-52-9C21H21NO2
Butyl 8-methyl-2-phenyl-4-quinolinecarboxylate
CAS 303067-47-2C21H21NO2
![2-(4-Methoxyphenyl)-N-[1-(2-naphthyl)ethyl]acetamide chemical structure, C21H21NO2, CAS 712320-09-7](/s/ZEQVQOJTPHSLRP-UHFFFAOYSA-N.svg)
2-(4-Methoxyphenyl)-N-[1-(2-naphthyl)ethyl]acetamide
CAS 712320-09-7C21H21NO2
4-(2,6-Dimethylpiperidine-1-carbonyl)-9H-fluoren-9-one
CAS 327060-98-0C21H21NO2
7-Dihydrobenfluron
CAS 83439-20-7C21H21NO2
3-Cyclohexyl-2-phenyl-1H-indole-6-carboxylic acid
CAS 494799-15-4C21H21NO2
7-(4-Methoxyphenyl)-6-phenyl-2,3,8,8a-tetrahydroindolizin-5(1H)-one
CAS 950567-39-2C21H21NO2
6-Phenyl-5,6,6a,7,8,9,10,10a-octahydro-7,10-methanophenanthridine-2-carboxylic acid
CAS 474376-65-3C21H21NO2
![4,4,6,9-Tetramethyl-6-phenyl-5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinoline-1,2-dione chemical structure, C21H21NO2, CAS 510763-97-0](/s/IHEKWKZTUYZTBC-UHFFFAOYSA-N.svg)
4,4,6,9-Tetramethyl-6-phenyl-5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinoline-1,2-dione
CAS 510763-97-0C21H21NO2
![10-Cyclopentylidene-4-o-tolyl-4-aza-tricyclo[5.2.1.0*2,6*]dec-8-ene-3,5-dione chemical structure, C21H21NO2, CAS 357623-55-3](/s/OMWHWNXMGRTOLH-UHFFFAOYSA-N.svg)
10-Cyclopentylidene-4-o-tolyl-4-aza-tricyclo[5.2.1.0*2,6*]dec-8-ene-3,5-dione
CAS 357623-55-3C21H21NO2
![1-[Morpholin-4-yl(phenyl)methyl]-2-naphthol chemical structure, C21H21NO2, CAS 24685-08-3](/s/WESLOKYESXZJSF-UHFFFAOYSA-N.svg)
1-[Morpholin-4-yl(phenyl)methyl]-2-naphthol
CAS 24685-08-3C21H21NO2
9-(4-Morpholin-4-ylbut-2-ynyl)fluoren-9-ol
CAS 380591-96-8C21H21NO2
Neosalvianen
CAS 790673-00-6C21H21NO2
Benzeneacetamide, N-(2-(7-methoxy-1-naphthalenyl)ethyl)-
CAS 138112-77-3C21H21NO2
(9,10-Dihydro-9,10-ethanoanthracen-11-yl)-4-morpholinylmethanone
CAS 22411-91-2C21H21NO2
2-(4-Ethylphenoxy)-N-(naphthalen-1-ylmethyl)acetamide
CAS 329920-60-7C21H21NO2
5-Methyl-2-(propan-2-yl)phenyl naphthalen-1-ylcarbamate
CAS 6275-64-5C21H21NO2
1-(1-Benzofuran-2-carbonyl)-4-benzylpiperidine
CAS 260428-27-1C21H21NO2
- 2-(2,4-Dimethylphenyl)-N-(4-methoxynaphthalen-1-yl)acetamide899958-31-7C21H21NO2
- Salvianen862832-45-9C21H21NO2
- 5-(4-Aminonaphthalen-1-yl)-2-(tetrahydrofuran-3-ylmethyl)phenol294852-73-6C21H21NO2
- 1-Benzyl-4-(benzyloxy)-3-ethylpyridin-2(1H)-one586373-15-1C21H21NO2
- Ethyl 4-{[2-(naphthalen-1-yl)ethyl]amino}benzoate61440-59-3C21H21NO2
- 2-(4-tert-Butylphenyl)-6-methylquinoline-4-carboxylic acid438219-50-2C21H21NO2
- 2-(4-Isopropylphenyl)-3,6-dimethylquinoline-4-carboxylic acid438220-22-5C21H21NO2
- 3,5-Bis(4-methoxyphenyl)-2,4-dimethylpyridine866551-98-6C21H21NO2
- 2-(4-Isobutylphenyl)-6-methylquinoline-4-carboxylic acid438219-40-0C21H21NO2
- N-[2-(4-Methylphenoxy)ethyl]-2-naphthalen-1-ylacetamide294652-47-4C21H21NO2
- 2-[(3,5-Dimethylanilino)methylene]-5-phenyl-1,3-cyclohexanedione423744-59-6C21H21NO2
- 4,4,6,8-Tetramethyl-6-phenyl-5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinoline-1,2-dione827342-55-2C21H21NO2
- 2-(4-sec-Butylphenyl)-6-methylquinoline-4-carboxylic acid492442-13-4C21H21NO2
- 2-(4-Isopropylphenyl)-6,8-dimethylquinoline-4-carboxylic acid897554-44-8C21H21NO2
- 2-(4-sec-Butylphenyl)-8-methylquinoline-4-carboxylic acid932796-03-7C21H21NO2
- N-[(1-Phenylcyclopentyl)methyl]-1-benzofuran-2-carboxamide337497-44-6C21H21NO2
- 2-(4-sec-Butylphenyl)-3-methyl-4-quinolinecarboxylic acid445032-80-4C21H21NO2
- N-[1-(4-Methoxyphenyl)ethyl]-2-naphthalen-1-ylacetamide328029-46-5C21H21NO2
- 6,8-Dimethyl-2-(4-propylphenyl)quinoline-4-carboxylic acid587851-56-7C21H21NO2
- 4-[(3aS,4R,9bR)-6,8-Dimethyl-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinolin-4-yl]benzoic acid1217614-16-8C21H21NO2
- 3,4-Dibenzyloxybenzylamine190018-05-4C21H21NO2
- 3-(4-Pentyloxybenzoyl)quinoline1187170-86-0C21H21NO2
- N-(4-Butylphenyl)-3-hydroxynaphthalene-2-carboxamide5474-37-3C21H21NO2
- Ethyl 4-phenyl-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinoline-8-carboxylate487001-11-6C21H21NO2
- 7,7-Dimethyl-4-naphthalen-2-yl-3,4,6,8-tetrahydro-1H-quinoline-2,5-dione847508-02-5C21H21NO2
- 2-(4-Butylphenyl)-6-methylquinoline-4-carboxylic acid932841-17-3C21H21NO2
- (9H-Fluoren-9-yl)methyl 4-methylenepiperidine-1-carboxylate1590372-27-2C21H21NO2
- Methyl 2-(4-isopropylphenyl)-6-methyl-4-quinolinecarboxylate438220-13-4C21H21NO2
- N-[2-(3,4-Dimethylphenoxy)ethyl]naphthalene-1-carboxamide328281-05-6C21H21NO2
- 2-[2-Hydroxyethyl(pyren-1-ylmethyl)amino]ethanol3712-79-6C21H21NO2
- 4-(2-(3,4-Diethoxyphenyl)vinyl)quinoline2859-51-0C21H21NO2
- 4-[(3aS,4R,9bR)-7,9-Dimethyl-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinolin-4-yl]benzoic acid1217778-65-8C21H21NO2
- 4-(4-Pentyloxybenzoyl)isoquinoline1187171-67-0C21H21NO2
- 2-((4-(Benzyloxy)phenyl)methylidene)-1-azabicyclo(2.2.2)octan-3-one111896-93-6C21H21NO2
- 4-[(3aS,4R,9bR)-6,7-Dimethyl-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinolin-4-yl]benzoic acid1217682-79-5C21H21NO2
- 2-Methyl-8-quinolyl 4-(tert-butyl)benzoate312594-38-0C21H21NO2
- N-(4-Isopropylphenyl)-2-(2-naphthyloxy)acetamide425401-84-9C21H21NO2
- N-Isopropyl-3-[(1-naphthyloxy)methyl]benzamide445284-85-5C21H21NO2
- 1,3-Propanediol, 2-((1-fluoranthenylmethyl)amino)-2-methyl-129026-41-1C21H21NO2
- N-Propargylnornuciferine35936-73-3C21H21NO2
- 4-(4-Methoxyphenyl)-N-naphthalen-2-ylbutanamide431922-92-8C21H21NO2
- 8-Methyl-2-[4-(2-methylpropyl)phenyl]quinoline-4-carboxylic acid438235-50-8C21H21NO2
- N-(2-Ethyl-6-methylphenyl)-2-naphthalen-2-yloxyacetamide550308-27-5C21H21NO2
- N-(3,4-Dimethoxybenzyl)-1,2-dihydroacenaphthylen-5-amine881446-19-1C21H21NO2
- Benzamide, N-(2-(7-methoxy-1-naphthalenyl)ethyl)-4-methyl-138112-88-6C21H21NO2
- 2-(4-tert-Butylphenyl)-3-methylquinoline-4-carboxylic acid350997-50-1C21H21NO2
- Benzenemethanamine, 3,5-bis(phenylmethoxy)-205176-41-6C21H21NO2
- 2-(1-{[3-Methyl-4-(propan-2-yl)phenyl]amino}ethylidene)-2,3-dihydro-1H-indene-1,3-dione1020252-32-7C21H21NO2
- 1,3-Propanediol, 2-((8-fluoranthenylmethyl)amino)-2-methyl-96403-45-1C21H21NO2
- 1H-Pyrrole-3-acetic acid, 2,5-dimethyl-1-(diphenylmethyl)-42780-21-2C21H21NO2
- 3,6-Dimethyl-2-(4-propylphenyl)quinoline-4-carboxylic acid438219-33-1C21H21NO2
- N-(2-Isopropylphenyl)-2-(2-naphthyloxy)acetamide425374-05-6C21H21NO2
- N-(2,3-Dimethoxybenzyl)-1,2-dihydroacenaphthylen-5-amine881446-27-1C21H21NO2
- Benzoic acid, 2-((2-butyl-1-naphthalenyl)amino)-51670-16-7C21H21NO2
- Benzoic acid, 2-((4-butyl-1-naphthalenyl)amino)-51670-17-8C21H21NO2
- Benzenemethanamine, alpha-phenyl-, 3-methylbenzoate171507-31-6C21H21NO2
- 2-(4-tert-Butylphenyl)-8-methylquinoline-4-carboxylic acid897566-25-5C21H21NO2
- 1-{[(3-Butoxyphenyl)imino]methyl}-2-naphthol329934-45-4C21H21NO2
- N-(4-Butylphenyl)-1-benzoxepine-4-carboxamide924838-70-0C21H21NO2
- 2-Propenoic acid, 3-(4-cyanophenyl)-, 4-pentylphenyl ester61924-46-7C21H21NO2
- 1,3-Propanediol, 2-((7-fluoranthenylmethyl)amino)-2-methyl-99590-50-8C21H21NO2
- Dibenzo(a,e)cycloheptatrien-5-one, 2-methoxy-1-pyrrolidinomethyl-42981-86-2C21H21NO2
- 2-(6-Methoxy-2-naphthyl)-N-(2-methylphenyl)propanamide883044-96-0C21H21NO2
- Benzoic acid, 2-((4-(1,1-dimethylethyl)-1-naphthalenyl)amino)-51670-19-0C21H21NO2
- 3-(1-Heptynyl)-3-hydroxy-2-phenyl-1-isoindolinone400080-95-7C21H21NO2
- (1R,4S)-9,11-Dimethyl-1-(4-methylphenyl)-4,5-dihydro-1H,3H-1,4-epoxy[1,4]oxazepino[4,3-a]indole1212155-97-9C21H21NO2
- N-(2-Hydroxy-2-(naphthalen-1-yl)ethyl)-3-phenylpropanamide1351601-49-4C21H21NO2
- Ethyl 2-(5-methyl-2,3-diphenyl-1H-pyrrol-1-yl)acetate59214-47-0C21H21NO2
- N-[1-(Furan-3-yl)propan-2-yl]-2,2-diphenylacetamide1795491-68-7C21H21NO2
- (3-(Benzyloxy)phenyl)((1R,5S)-8-azabicyclo[3.2.1]oct-2-en-8-yl)methanone1705064-57-8C21H21NO2
- (9H-Fluoren-9-yl)methyl 3-ethenylpyrrolidine-1-carboxylate2770557-02-1C21H21NO2
- 4H-1-Benzopyran-4-one, 3-[(1-ethyl-1,2,3,4-tetrahydro-6-quinolinyl)methylene]-2,3-dihydro-75535-23-8C21H21NO2
- Ethyl 4-aminospiro[cyclohex-3-ene-1,9'-fluorene]-3-carboxylate6629-89-6C21H21NO2
- N-Naphthalen-1-yl-2-(4-propan-2-ylphenoxy)acetamide432496-42-9C21H21NO2
- rac-(1R,2S,10R,11R,12S)-10-Phenyl-9-azatetracyclo[10.2.1.0^{2,11}.0^{3,8}]pentadeca-3,5,7-triene-5-carboxylicacid2418595-82-9C21H21NO2
- 1,1-Diphenyl-2-methyl-3-(2-furylmethyleneamino)propanol78186-50-2C21H21NO2
Frequently asked questions
What is the molar mass of C21H21NO2?
The molar mass of C21H21NO2 is 319.40 g/mol, calculated from standard atomic weights for 21 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom and 2 oxygen atoms. The monoisotopic mass is 319.1572 Da.
How many compounds have the formula C21H21NO2?
CompoundList lists 218 compounds with the molecular formula C21H21NO2, including 4-(3,5-Dimethylpiperidine-1-carbonyl)-9H-fluoren-9-one, Oxetorone, 3-(1-Hydroxy-2-((4-phenylphenyl)methylamino)ethyl)phenol. 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 C21H21NO2?
C21H21NO2 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.