Molecular formula
C21H20N2O3
251 compounds have this formula on CompoundList.
- Molar mass
- 348.40g/mol
- Monoisotopic mass
- 348.1474Da
- Atoms
- 46
- Elements
- 4
- Rings plus double bonds
- 13
The formula C21H20N2O3 describes a molecule made of 21 carbon atoms, 20 hydrogen atoms, 2 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 × 2172.40%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 205.79%1.008 × 20 = 20.160 g/mol
- N Nitrogen × 28.04%14.007 × 2 = 28.014 g/mol
- O Oxygen × 313.78%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C21H20N2O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 251 compounds
Serpentine
CAS 131-07-7C21H20N2O3
Alstonine
CAS 642-18-2C21H20N2O3
N-(2-Methoxybenzyl)-N-(4-phenoxypyridin-3-yl)acetamide
CAS 253307-65-2C21H20N2O3
11C-Pbr-28
CAS 1005325-43-8C21H20N2O3
![2-[3-(Cyclopropanecarbonyl)indol-1-yl]-N-(4-methoxyphenyl)acetamide chemical structure, C21H20N2O3, CAS 696644-43-6](/s/PGRQVVAABHWQCS-UHFFFAOYSA-N.svg)
2-[3-(Cyclopropanecarbonyl)indol-1-yl]-N-(4-methoxyphenyl)acetamide
CAS 696644-43-6C21H20N2O3
2-Morpholino-3-(p-tolylamino)naphthalene-1,4-dione
CAS 84930-35-8C21H20N2O3
![2-[3-Oxo-3-(3-phenylpyrrolidin-1-yl)propyl]isoindole-1,3-dione chemical structure, C21H20N2O3, CAS 667895-35-4](/s/GLEZOJKQRIHDTN-UHFFFAOYSA-N.svg)
2-[3-Oxo-3-(3-phenylpyrrolidin-1-yl)propyl]isoindole-1,3-dione
CAS 667895-35-4C21H20N2O3
7-(Diethylamino)-3-(5-methylbenzoxazol-2-yl)-2-benzopyrone
CAS 34564-13-1C21H20N2O3
4-Hydroxy-2-oxo-N-(1-phenylethyl)-1-(prop-2-en-1-yl)-1,2-dihydroquinoline-3-carboxamide
CAS 300732-35-8C21H20N2O3
![2-[2-(3,4-Dihydro-2H-quinolin-1-yl)-2-oxoethyl]-5-methoxyisoquinolin-1-one chemical structure, C21H20N2O3, CAS 868223-26-1](/s/DFUFJXQPMSKHNL-UHFFFAOYSA-N.svg)
2-[2-(3,4-Dihydro-2H-quinolin-1-yl)-2-oxoethyl]-5-methoxyisoquinolin-1-one
CAS 868223-26-1C21H20N2O3
![N-(2,3-Dimethylphenyl)-7-hydroxy-5-oxo-2,3-dihydro-1H,5H-pyrido[3,2,1-ij]quinoline-6-carboxamide chemical structure, C21H20N2O3, CAS 377061-64-8](/s/DHTWTPYFEAWZTN-UHFFFAOYSA-N.svg)
N-(2,3-Dimethylphenyl)-7-hydroxy-5-oxo-2,3-dihydro-1H,5H-pyrido[3,2,1-ij]quinoline-6-carboxamide
CAS 377061-64-8C21H20N2O3
![2-[3-(Azepane-1-carbonyl)phenyl]isoindole-1,3-dione chemical structure, C21H20N2O3, CAS 340203-85-2](/s/MBRMOBDUCLMTMR-UHFFFAOYSA-N.svg)
2-[3-(Azepane-1-carbonyl)phenyl]isoindole-1,3-dione
CAS 340203-85-2C21H20N2O3
N-(4-Anilinophenyl)-3,5-dimethoxybenzamide
CAS 426243-45-0C21H20N2O3
2-(5-(2-Methoxyphenyl)pyrimidin-4-yl)-5-((2-methylallyl)oxy)phenol
CAS 849920-52-1C21H20N2O3
2-(1-(3,4-Dimethoxyphenyl)-3-oxo-3-(p-tolyl)propyl)malononitrile
CAS 332100-68-2C21H20N2O3
2-(5-(4-Methoxyphenyl)pyrimidin-4-yl)-5-((2-methylallyl)oxy)phenol
CAS 877780-62-6C21H20N2O3
![2-[[2,6-Dimethyl-4-(2-oxopyrrolidin-1-yl)phenyl]methyl]isoindole-1,3-dione chemical structure, C21H20N2O3, CAS 695198-63-1](/s/QFPFRSMAQHBZLK-UHFFFAOYSA-N.svg)
2-[[2,6-Dimethyl-4-(2-oxopyrrolidin-1-yl)phenyl]methyl]isoindole-1,3-dione
CAS 695198-63-1C21H20N2O3
![1-{2-[5-(Benzyloxy)-1H-indol-3-yl]ethyl}pyrrolidine-2,5-dione chemical structure, C21H20N2O3, CAS 300700-58-7](/s/SKAHKBAKJQUOKY-UHFFFAOYSA-N.svg)
1-{2-[5-(Benzyloxy)-1H-indol-3-yl]ethyl}pyrrolidine-2,5-dione
CAS 300700-58-7C21H20N2O3
4-Hydroxy-2-oxo-N-(2-phenylethyl)-1-(prop-2-en-1-yl)-1,2-dihydroquinoline-3-carboxamide
CAS 300589-62-2C21H20N2O3
2H-1-Benzopyran-2-one, 7-(diethylamino)-3-(methyl-2-benzoxazolyl)-
CAS 71838-87-4C21H20N2O3
![N-[3-(1,3-Dioxooctahydro-2H-isoindol-2-yl)phenyl]benzamide chemical structure, C21H20N2O3, CAS 312948-07-5](/s/BHQDKCFNNRSVDM-UHFFFAOYSA-N.svg)
N-[3-(1,3-Dioxooctahydro-2H-isoindol-2-yl)phenyl]benzamide
CAS 312948-07-5C21H20N2O3
Ethyl (Z)-2-benzamido-3-(1-methylindol-3-yl)prop-2-enoate
CAS 890097-66-2C21H20N2O3
![3'-[2-(4-Ethylphenyl)-2-oxoethyl]spiro[1,2-dihydroindene-3,5'-imidazolidine]-2',4'-dione chemical structure, C21H20N2O3, CAS 565224-86-4](/s/CQWSMGZHLPUVGT-UHFFFAOYSA-N.svg)
3'-[2-(4-Ethylphenyl)-2-oxoethyl]spiro[1,2-dihydroindene-3,5'-imidazolidine]-2',4'-dione
CAS 565224-86-4C21H20N2O3
![4-[(4-Ethoxyphenoxy)methyl]-N-pyridin-3-ylbenzamide chemical structure, C21H20N2O3, CAS 438472-47-0](/s/IJOIACCXGSKVRI-UHFFFAOYSA-N.svg)
4-[(4-Ethoxyphenoxy)methyl]-N-pyridin-3-ylbenzamide
CAS 438472-47-0C21H20N2O3
- [2-(4-Methoxyphenyl)quinolin-4-yl]-morpholin-4-ylmethanone355152-38-4C21H20N2O3
- [2-(4-Methylphenoxy)pyridin-3-yl]methyl N-(2-methylphenyl)carbamate338413-65-3C21H20N2O3
- 1,3-Bis-oxiranylmethyl-4,5-diphenyl-1,3-dihydro-imidazol-2-one120309-73-1C21H20N2O3
- N'-(3-Ethoxy-4-hydroxybenzylidene)-2-(1-naphthyl)acetohydrazide339081-83-3C21H20N2O3
- N-(1-Cyanocyclohexyl)-2-{8-oxatricyclo[7.4.0.0,2,7]trideca-1(9),2(7),3,5,10,12-hexaen-4-yloxy}acetamide852302-10-4C21H20N2O3
- Strychnine, 18-oxo-27239-48-1C21H20N2O3
- N-[2-(4-Methoxyanilino)-2-oxoethyl]-2-naphthalen-1-ylacetamide852127-57-2C21H20N2O3
- N'-(4-Ethoxybenzylidene)-2-(2-naphthyloxy)acetohydrazide303088-40-6C21H20N2O3
- N-[2-(4-Acetamidophenyl)ethyl]-1-hydroxynaphthalene-2-carboxamide5668-46-2C21H20N2O3
- Carbobenzyloxy-D-alanine beta-naphthylamide112982-78-2C21H20N2O3
- Ethyl 1-(2-(4-methylphenyl)-2-oxoethyl)-3-phenyl-1H-pyrazole-5-carboxylate618070-57-8C21H20N2O3
- N'-(2-Ethoxybenzylidene)-2-(1-naphthyloxy)acetohydrazide302910-06-1C21H20N2O3
- N'-(4-Ethoxybenzylidene)-2-(1-naphthyloxy)acetohydrazide303064-79-1C21H20N2O3
- N'-(2-Ethoxybenzylidene)-2-(2-naphthyloxy)acetohydrazide303087-55-0C21H20N2O3
- N-(4-Anilinophenyl)-2-(2-methoxyphenoxy)acetamide352649-22-0C21H20N2O3
- 5-Ethyl-4-hydroxy-3-(N-hydroxyethanimidoyl)-1,6-diphenyl-2(1H)-pyridinone380631-06-1C21H20N2O3
- 2-(1-Oxo-3-phenyl-1-pyrrolidin-1-ylpropan-2-yl)isoindole-1,3-dione384798-91-8C21H20N2O3
- N-[1-(Furan-2-ylmethylamino)-1-oxo-3-phenylpropan-2-yl]benzamide356055-06-6C21H20N2O3
- 3-{1-[4-(Acetylamino)phenyl]-5-phenyl-1H-pyrrol-2-yl}propanoic acid432525-11-6C21H20N2O3
- 3-Cyclopropaneamido-N-(3,4-dimethylphenyl)-1-benzofuran-2-carboxamide888454-87-3C21H20N2O3
- N-(3-Methoxyphenyl)-1-(2-methylbenzyl)-2-oxo-1,2-dihydropyridine-3-carboxamide946246-78-2C21H20N2O3
- N-[3-(4-Oxo-4H-3,1-benzoxazin-2-yl)phenyl]cyclohexanecarboxamide442653-56-7C21H20N2O3
- 3,4-Dimethoxy-N-[4-(pyridin-4-ylmethyl)phenyl]benzamide333352-75-3C21H20N2O3
- N-{1-[(2,4-Dimethylphenyl)amino]-2-oxo-2-phenylethyl}furan-2-carboxamide5521-84-6C21H20N2O3
- 2-[1-(4,4-Dimethyl-5H-1,3-oxazol-2-yl)-2-phenylethyl]isoindole-1,3-dione327979-92-0C21H20N2O3
- N-{1-[(2,5-Dimethylphenyl)amino]-2-oxo-2-phenylethyl}furan-2-carboxamide301359-34-2C21H20N2O3
- N-[(E)-(3,4-Dimethoxyphenyl)methylideneamino]-2-naphthalen-1-ylacetamide936628-69-2C21H20N2O3
- (Z)-3-(Benzo[d][1,3]dioxol-5-yl)-N-((1,2-dimethyl-1H-indol-5-yl)methyl)acrylamide852137-59-8C21H20N2O3
- 9H-Fluoren-9-one O-(3-((furan-2-ylmethyl)amino)-2-hydroxypropyl) oxime868148-62-3C21H20N2O3
- N-[2-(1H-Indol-3-yl)ethyl]-2-[(3-oxo-2,3-dihydro-1H-inden-5-yl)oxy]acetamide1203346-84-2C21H20N2O3
- A|A-IN-52417977-65-0C21H20N2O3
- 3-(4-Benzylpiperazine-1-carbonyl)-2H-chromen-2-one324067-29-0C21H20N2O3
- N-Methyl-N-{2-[(2-phenylethyl)carbamoyl]phenyl}furan-2-carboxamide819824-90-3C21H20N2O3
- N,N-Dimethyl-4-[2-(naphthalen-2-yloxy)acetamido]benzamide880073-83-6C21H20N2O3
- N-[3-[(4-Ethylbenzoyl)amino]-4-methylphenyl]furan-2-carboxamide895089-79-9C21H20N2O3
- 2-(2,4-Dimethylphenoxy)-N'-[(2-hydroxy-1-naphthyl)methylene]acetohydrazide413581-04-1C21H20N2O3
- 6-(4-Methoxyphenyl)-3-(1-oxo-1-(p-tolyl)propan-2-yl)pyrimidin-4(3H)-one1105216-02-1C21H20N2O3
- 1-[4-(Furan-2-carbonyl)piperazin-1-yl]-2-(naphthalen-1-yl)ethan-1-one924196-65-6C21H20N2O3
- N-[(2-Methoxyphenyl)methyl]-4-(2-methylbenzoyl)-1H-pyrrole-2-carboxamide439120-84-0C21H20N2O3
- Piperidine,1-(1H-indol-3-yloxoacetyl)-4-phenoxy-63843-61-8C21H20N2O3
- N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-2,3,4,9-tetrahydro-1H-carbazole-8-carboxamide946379-55-1C21H20N2O3
- 2-Naphthalenecarboxamide, N-[2-[2-(acetylamino)phenyl]ethyl]-1-hydroxy-5254-41-1C21H20N2O3
- 3-(3,4-Dimethoxyphenyl)-4-(1-methylindol-3-yl)-1,2-dihydropyrrol-5-one2055377-77-8C21H20N2O3
- 1 suppliersDBCO-C2-alcohol1839049-33-0C21H20N2O3
- N-{4-[Acetyl(methyl)amino]phenyl}-2-(2-naphthyloxy)acetamide315670-48-5C21H20N2O3
- 1-Allyl-N-(2,5-dimethylphenyl)-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxamide376610-87-6C21H20N2O3
- 2,2,4-Trimethyl-1-[3-(4-nitrophenyl)acryloyl]-1,2-dihydroquinoline332019-32-6C21H20N2O3
- (Spiro(9H-fluorene-9,3'-pyrrolidine)-2',) 5'-dione, 1'-(4-morpholinylmethyl)-68161-16-0C21H20N2O3
- 2-{[4-(Piperidine-1-carbonyl)phenyl]methyl}-2,3-dihydro-1H-isoindole-1,3-dione1241573-95-4C21H20N2O3
- 3-{2-[4-(Dimethylamino)phenyl]-2-oxoethyl}-3-hydroxy-1-(prop-2-yn-1-yl)-1,3-dihydro-2H-indol-2-one421579-15-9C21H20N2O3
- N-[2-(4-Methylphenyl)-1-[(4-methylphenyl)amino]-2-oxoethyl]furan-2-carboxamide335421-03-9C21H20N2O3
- 3-(1,3-Benzoxazol-2-yl)-7-(diethylamino)-6-methylchromen-2-one2414374-41-5C21H20N2O3
- N-Benzyl-4-methoxy-N-[(4-nitrophenyl)methyl]aniline923603-50-3C21H20N2O3
- 4-Piperidinol, 1-(1H-indol-3-yloxoacetyl)-4-phenyl-18272-07-6C21H20N2O3
- [2-(3-Methoxyphenyl)quinolin-4-yl]-morpholin-4-ylmethanone541535-77-7C21H20N2O3
- 1-Allyl-N-(3,5-dimethylphenyl)-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxamide372184-92-4C21H20N2O3
- N-(3-{[(Naphthalen-2-yloxy)acetyl]amino}phenyl)propanamide432001-47-3C21H20N2O3
- N-Benzyl-3,4-dimethoxy-N-pyridin-2-ylbenzamide333347-72-1C21H20N2O3
- N-[4-[(4-Propan-2-ylbenzoyl)amino]phenyl]furan-2-carboxamide797806-81-6C21H20N2O3
- Ethyl 4-(2,3-dimethylphenoxy)-2-phenyl-5-pyrimidinecarboxylate477854-79-8C21H20N2O3
- N-(9,10-Dioxo-9,10-dihydroanthracen-1-yl)-2-(piperidin-1-yl)acetamide23949-18-0C21H20N2O3
- [(Z)-(1-Amino-2-naphthalen-1-ylethylidene)amino] 2-(3-methylphenoxy)acetate6094-11-7C21H20N2O3
- 1-Allyl-N-(2,4-dimethylphenyl)-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxamide313980-62-0C21H20N2O3
- 2-[(2-Quinolinylcarbonyl)amino]ethyl (4-methylphenyl)acetate202191-10-4C21H20N2O3
- 4-(1,3-Benzodioxol-5-ylmethylidene)-5-tert-butyl-2-phenylpyrazol-3-one1024790-34-8C21H20N2O3
- 3-(2,4-Dimethoxyphenyl)-2,3,4,5-tetrahydro-1H-dibenzo[b,e][1,4]diazepin-1-one894219-56-8C21H20N2O3
- 3-(Cyclopentanecarboxamido)-N-phenylbenzofuran-2-carboxamide862829-63-8C21H20N2O3
- N-[4-(Morpholin-4-yl)phenyl]-1-benzoxepine-4-carboxamide924838-76-6C21H20N2O3
- (Z)-N-(2-(7-Methoxy-2-oxo-1,2-dihydroquinolin-3-yl)ethyl)-3-phenylacrylamide851405-54-4C21H20N2O3
- N-[1-(1H-Indol-3-yl)propan-2-yl]-7-methoxy-1-benzofuran-2-carboxamide951948-35-9C21H20N2O3
- Barbituric acid, 5-(3,3-dimethylallyl)-1,3-diphenyl-73680-99-6C21H20N2O3
- 1-(1,2-Dihydroacenaphthylen-5-yl)-3-(3,4-dimethoxyphenyl)urea346442-98-6C21H20N2O3
- 3-Methoxy-N-[4-(propanoylamino)phenyl]naphthalene-2-carboxamide5838-24-4C21H20N2O3
- Rmi 61,21856972-89-5C21H20N2O3
- Perimidine, 1-methyl-2-(3,4,5-trimethoxyphenyl)-63656-62-2C21H20N2O3
- (Z)-N'-(3,4-Dimethoxybenzylidene)-2-(naphthalen-1-yl)acetohydrazide328538-68-7C21H20N2O3
Frequently asked questions
What is the molar mass of C21H20N2O3?
The molar mass of C21H20N2O3 is 348.40 g/mol, calculated from standard atomic weights for 21 carbon atoms, 20 hydrogen atoms, 2 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 348.1474 Da.
How many compounds have the formula C21H20N2O3?
CompoundList lists 251 compounds with the molecular formula C21H20N2O3, including Serpentine, Alstonine, N-(2-Methoxybenzyl)-N-(4-phenoxypyridin-3-yl)acetamide. 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 C21H20N2O3?
C21H20N2O3 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.