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 201 to 300 of 394 compounds
Ethyl 4-(4-(2,6-dimethylpyridin-3-yloxy)pyridin-2-ylamino)benzoate
CAS 1117686-26-6C21H21N3O3
(E)-N-((3-Cyclopentyl-4-oxo-3,4-dihydrophthalazin-1-yl)methyl)-3-(furan-2-yl)acrylamide
CAS 1421588-95-5C21H21N3O3
![6-Methoxy-N-[3-(2-oxopiperidin-1-yl)phenyl]-1H-indole-2-carboxamide chemical structure, C21H21N3O3, CAS 1448077-80-2](/s/YMAXNBGGCHYABU-UHFFFAOYSA-N.svg)
6-Methoxy-N-[3-(2-oxopiperidin-1-yl)phenyl]-1H-indole-2-carboxamide
CAS 1448077-80-2C21H21N3O3
![2-[(2-Hydroxy-3,4-dihydroquinolin-7-yl)oxy]-N-[2-(1H-indol-3-yl)ethyl]acetamide chemical structure, C21H21N3O3, CAS 1574308-52-3](/s/GUJUSWVADYTWHL-UHFFFAOYSA-N.svg)
2-[(2-Hydroxy-3,4-dihydroquinolin-7-yl)oxy]-N-[2-(1H-indol-3-yl)ethyl]acetamide
CAS 1574308-52-3C21H21N3O3
![2-(5,11-Dioxo-6a,11-dihydroisoindolo[2,1-a]quinazolin-6(5H)-yl)-N-(2-methylpropyl)acetamide chemical structure, C21H21N3O3, CAS 1630832-12-0](/s/ANRXRCXXQUVYAV-UHFFFAOYSA-N.svg)
2-(5,11-Dioxo-6a,11-dihydroisoindolo[2,1-a]quinazolin-6(5H)-yl)-N-(2-methylpropyl)acetamide
CAS 1630832-12-0C21H21N3O3
Fmoc-L-Val-CHN2
CAS 193148-58-2C21H21N3O3
![N-[4-(3-azetidinyloxy)-3-(3,5-dimethyl-4-isoxazolyl)phenyl]Benzamide chemical structure, C21H21N3O3, CAS 2769703-83-3](/s/JKKUZJBNWKIOSE-UHFFFAOYSA-N.svg)
N-[4-(3-azetidinyloxy)-3-(3,5-dimethyl-4-isoxazolyl)phenyl]Benzamide
CAS 2769703-83-3C21H21N3O3
![4-[[4-(4-Amino-3-methoxyphenyl)-2-methoxyphenyl]diazenyl]-2-methylphenol chemical structure, C21H21N3O3, CAS 6956-89-4](/s/KFKBFYTZMRHTFU-UHFFFAOYSA-N.svg)
4-[[4-(4-Amino-3-methoxyphenyl)-2-methoxyphenyl]diazenyl]-2-methylphenol
CAS 6956-89-4C21H21N3O3
![N-[4-Amino-9,10-dioxo-3-(piperidin-1-yl)-9,10-dihydroanthracen-1-yl]acetamide chemical structure, C21H21N3O3, CAS 79207-93-5](/s/UTERCDMLLHSXPR-UHFFFAOYSA-N.svg)
N-[4-Amino-9,10-dioxo-3-(piperidin-1-yl)-9,10-dihydroanthracen-1-yl]acetamide
CAS 79207-93-5C21H21N3O3
2-(2,6-Dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)-N-(3,3-diphenylpropyl)acetamide
CAS 868229-04-3C21H21N3O3
![[2-[3-(4-Methoxyphenyl)-1,2,4-oxadiazol-5-yl]phenyl]-piperidin-1-ylmethanone chemical structure, C21H21N3O3, CAS 877806-30-9](/s/WQEZZCLDPBETBH-UHFFFAOYSA-N.svg)
[2-[3-(4-Methoxyphenyl)-1,2,4-oxadiazol-5-yl]phenyl]-piperidin-1-ylmethanone
CAS 877806-30-9C21H21N3O3
![4-Ethoxy-N-[5-(5,6,7,8-tetrahydronaphthalen-2-yl)-1,3,4-oxadiazol-2-yl]benzamide chemical structure, C21H21N3O3, CAS 887887-51-6](/s/XFNSGXMOBTVBPG-UHFFFAOYSA-N.svg)
4-Ethoxy-N-[5-(5,6,7,8-tetrahydronaphthalen-2-yl)-1,3,4-oxadiazol-2-yl]benzamide
CAS 887887-51-6C21H21N3O3
![3-{[2-(5-Methoxy-1H-indol-3-yl)ethyl]amino}-1-phenylpyrrolidine-2,5-dione chemical structure, C21H21N3O3, CAS 1008081-81-9](/s/WRBSYGJAGIIMKC-UHFFFAOYSA-N.svg)
3-{[2-(5-Methoxy-1H-indol-3-yl)ethyl]amino}-1-phenylpyrrolidine-2,5-dione
CAS 1008081-81-9C21H21N3O3
![N1-(4-methylbenzyl)-N2-(2-oxo-2,4,5,6-tetrahydro-1H-pyrrolo[3,2,1-ij]quinolin-8-yl)oxalamide chemical structure, C21H21N3O3, CAS 898454-65-4](/s/XYUSHBKMVVNUOC-UHFFFAOYSA-N.svg)
N1-(4-methylbenzyl)-N2-(2-oxo-2,4,5,6-tetrahydro-1H-pyrrolo[3,2,1-ij]quinolin-8-yl)oxalamide
CAS 898454-65-4C21H21N3O3
N-(2-Methoxybenzyl)-2-(6-oxo-3-(o-tolyl)pyridazin-1(6H)-yl)acetamide
CAS 941883-69-8C21H21N3O3
N-(3,5-Dimethylphenyl)-4-methoxy-1-(2-methylphenyl)-6-oxo-1,6-dihydropyridazine-3-carboxamide
CAS 1002255-26-6C21H21N3O3
N-(3,4-Dimethylphenyl)-4-methoxy-1-(2-methylphenyl)-6-oxo-1,6-dihydropyridazine-3-carboxamide
CAS 1002255-32-4C21H21N3O3
N-(4-Ethylphenyl)-4-methoxy-1-(2-methylphenyl)-6-oxopyridazine-3-carboxamide
CAS 1002255-36-8C21H21N3O3
N-(2-Ethylphenyl)-4-methoxy-1-(2-methylphenyl)-6-oxopyridazine-3-carboxamide
CAS 1002255-38-0C21H21N3O3
N-(2,3-Dimethylphenyl)-4-methoxy-1-(2-methylphenyl)-6-oxo-1,6-dihydropyridazine-3-carboxamide
CAS 1004383-90-7C21H21N3O3
N-(2,4-Dimethylphenyl)-4-methoxy-1-(2-methylphenyl)-6-oxopyridazine-3-carboxamide
CAS 1004383-94-1C21H21N3O3
N-(2,6-Dimethylphenyl)-4-methoxy-1-(4-methylphenyl)-6-oxo-1,6-dihydropyridazine-3-carboxamide
CAS 1004392-52-2C21H21N3O3
N-(4-Ethylphenyl)-4-methoxy-1-(4-methylphenyl)-6-oxo-1,6-dihydropyridazine-3-carboxamide
CAS 1004392-54-4C21H21N3O3
N-(2,3-Dimethylphenyl)-4-methoxy-1-(4-methylphenyl)-6-oxo-1,6-dihydropyridazine-3-carboxamide
CAS 946255-93-2C21H21N3O3
- N-(2,5-Dimethylphenyl)-4-methoxy-1-(4-methylphenyl)-6-oxo-1,6-dihydropyridazine-3-carboxamide1004390-47-9C21H21N3O3
- N-Ethyl-4-methoxy-1-(4-methylphenyl)-6-oxo-N-phenylpyridazine-3-carboxamide1004390-91-3C21H21N3O3
- 6-(3,5-Dimethylphenyl)-4-(4-hydroxyphenyl)-1-methyl-3,4,6,7-tetrahydro-1H-pyrrolo[3,4-d]pyrimidine-2,5-dione893780-95-5C21H21N3O3
- 1-(4-Methoxyphenyl)-3-[(4-methoxyphenyl)amino]-1,5,6,7-tetrahydro-4H-indazol-4-one903469-54-5C21H21N3O3
- 6-(3,4-Dimethylphenyl)-4-(4-hydroxyphenyl)-1-methyl-3,4,6,7-tetrahydro-1H-pyrrolo[3,4-d]pyrimidine-2,5-dione893781-29-8C21H21N3O3
- N-{11-Oxo-1-azatricyclo[6.3.1.0^{4,12}]dodeca-4(12),5,7-trien-6-yl}-N'-(2-phenylethyl)ethanediamide898435-65-9C21H21N3O3
- 2-((2-Morpholinoquinolin-8-yl)oxy)-N-phenylacetamide941903-15-7C21H21N3O3
- 4-(4-Methoxyphenyl)-6-phenethyl-3,4,6,7-tetrahydro-1H-pyrrolo[3,4-d]pyrimidine-2,5-dione941921-21-7C21H21N3O3
- N-Mesityl-4-methoxy-6-oxo-1-phenyl-1,6-dihydropyridazine-3-carboxamide1005302-48-6C21H21N3O3
- 4-Methoxy-1-(4-methylphenyl)-6-oxo-N-(1-phenylethyl)-1,6-dihydropyridazine-3-carboxamide1005297-08-4C21H21N3O3
- 4-Ethoxy-N-(2-(6-oxo-3-phenylpyridazin-1(6H)-yl)ethyl)benzamide921872-91-5C21H21N3O3
- 2-Ethoxy-N-(2-(6-oxo-3-phenylpyridazin-1(6H)-yl)ethyl)benzamide921825-43-6C21H21N3O3
- N-(2-(3-(4-Methoxyphenyl)-6-oxopyridazin-1(6H)-yl)ethyl)-3-methylbenzamide921529-34-2C21H21N3O3
- Ethyl 6-oxo-4-(phenethylamino)-1-phenyl-1,6-dihydropyridazine-3-carboxylate922037-46-5C21H21N3O3
- N1-(4-methylbenzyl)-N2-(4-oxo-2,4,5,6-tetrahydro-1H-pyrrolo[3,2,1-ij]quinolin-8-yl)oxalamide898462-07-2C21H21N3O3
- N1-(3,5-dimethylphenyl)-N2-(4-oxo-2,4,5,6-tetrahydro-1H-pyrrolo[3,2,1-ij]quinolin-8-yl)oxalamide898419-13-1C21H21N3O3
- N1-(4-ethylphenyl)-N2-(4-oxo-2,4,5,6-tetrahydro-1H-pyrrolo[3,2,1-ij]quinolin-8-yl)oxalamide898419-17-5C21H21N3O3
- N1-(2,3-dimethylphenyl)-N2-(4-oxo-2,4,5,6-tetrahydro-1H-pyrrolo[3,2,1-ij]quinolin-8-yl)oxalamide898462-28-7C21H21N3O3
- N1-(3,4-dimethylphenyl)-N2-(4-oxo-2,4,5,6-tetrahydro-1H-pyrrolo[3,2,1-ij]quinolin-8-yl)oxalamide898419-21-1C21H21N3O3
- N1-(2,4-dimethylphenyl)-N2-(4-oxo-2,4,5,6-tetrahydro-1H-pyrrolo[3,2,1-ij]quinolin-8-yl)oxalamide898435-81-9C21H21N3O3
- N1-(2,5-dimethylphenyl)-N2-(4-oxo-2,4,5,6-tetrahydro-1H-pyrrolo[3,2,1-ij]quinolin-8-yl)oxalamide898462-31-2C21H21N3O3
- N1-(2-ethylphenyl)-N2-(4-oxo-2,4,5,6-tetrahydro-1H-pyrrolo[3,2,1-ij]quinolin-8-yl)oxalamide898419-27-7C21H21N3O3
- N1-(4-oxo-2,4,5,6-tetrahydro-1H-pyrrolo[3,2,1-ij]quinolin-8-yl)-N2-(1-phenylethyl)oxalamide898435-84-2C21H21N3O3
- N1-(3-oxo-1,2,3,5,6,7-hexahydropyrido[3,2,1-ij]quinolin-9-yl)-N2-(m-tolyl)oxalamide898464-44-3C21H21N3O3
- 4-Methoxy-N-(2-((6-(p-tolyl)pyridazin-3-yl)oxy)ethyl)benzamide1005296-17-2C21H21N3O3
- 2-(4-(3,5-Dimethylphenyl)-2,3-dioxo-3,4-dihydropyrazin-1(2H)-yl)-N-(p-tolyl)acetamide891866-66-3C21H21N3O3
- Ethyl 4-[benzyl(methyl)amino]-6-oxo-1-phenyl-1,6-dihydropyridazine-3-carboxylate922090-81-1C21H21N3O3
- 2-[4-(3,4-Dimethylphenyl)-2,3-dioxo-1,2,3,4-tetrahydropyrazin-1-yl]-N-(4-methylphenyl)acetamide904524-89-6C21H21N3O3
- 2-[4-(3,5-Dimethylphenyl)-2,3-dioxo-1,2,3,4-tetrahydropyrazin-1-yl]-N-(3-methylphenyl)acetamide950425-98-6C21H21N3O3
- 3-Cyclopropyl-N-(2,5-dimethoxyphenyl)-1-phenyl-1H-pyrazole-5-carboxamide1170426-26-2C21H21N3O3
- Methyl N-{[6-(propan-2-yl)-2-(pyridin-2-yl)quinolin-4-yl]carbonyl}glycinate1144466-04-5C21H21N3O3
- N-(2-(3-(4-Methoxyphenyl)-6-oxopyridazin-1(6H)-yl)ethyl)-2-methylbenzamide921873-36-1C21H21N3O3
- N-(2-(3-(4-Methoxyphenyl)-6-oxopyridazin-1(6H)-yl)ethyl)-4-methylbenzamide921528-90-7C21H21N3O3
- N-Benzyl-N-(cyanomethyl)-3-(2-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-4-yl)propanamide1241359-36-3C21H21N3O3
- 2-(7-tert-Butyl-3-oxo-2,3-dihydro-4H-1,4-benzoxazin-4-yl)-N-(3-cyanophenyl)acetamide1232780-82-3C21H21N3O3
- 3-{2-Methoxy-6-[2-(4-methoxy-phenyl)-ethylamino]-pyrimidin-4-yl}-benzaldehyde885066-29-5C21H21N3O3
- 4-(2-(4-(Pyridin-2-ylamino)phenoxy)pyridin-3-yl)tetrahydro-2H-pyran-4-ol1231923-45-7C21H21N3O3
- N-[1-(2-Methoxyethyl)-1H-indol-4-yl]-2-(3-oxo-2,3-dihydro-1H-isoindol-1-yl)acetamide1374532-43-0C21H21N3O3
- Ethyl 3-(1-(1,4-dihydro-4-oxo-1-phenylpyridazin-3-yl)ethyl)phenylcarbamate1314387-24-0C21H21N3O3
- N-[2-(5-Methoxy-1H-indol-3-yl)ethyl]-2-(3-oxo-2,3-dihydro-1H-isoindol-1-yl)acetamide1374520-05-4C21H21N3O3
- 1-(1H-Indol-3-yl)-2-(4-((6-methylpyridin-2-yl)oxy)piperidin-1-yl)ethane-1,2-dione1797596-92-9C21H21N3O3
- 6-Methoxy-N-[4-methyl-3-(2-oxopyrrolidin-1-yl)phenyl]-1H-indole-2-carboxamide1448044-12-9C21H21N3O3
- 4-[4-(Benzyloxycarbonyl)piperazino]-1H-indole-5-carbaldehyde1258408-30-8C21H21N3O3
- 3-(5,11-Dioxo-6a,11-dihydroisoindolo[2,1-a]quinazolin-6(5H)-yl)-N-(propan-2-yl)propanamide1630862-13-3C21H21N3O3
- N-(Quinolin-8-yl)-6-((tetrahydro-2H-pyran-4-yl)methoxy)nicotinamide2034617-07-5C21H21N3O3
- N-([2,3'-Bipyridin]-3-ylmethyl)-2-(3,4-dimethoxyphenyl)acetamide2034563-02-3C21H21N3O3
- N-Benzhydryl-3-(2,5-dioxopyrrolidin-1-yl)azetidine-1-carboxamide1903612-21-4C21H21N3O3
- 4-(3-(3-(1,3-Dioxo-3a,4,7,7a-tetrahydro-1H-isoindol-2(3H)-yl)azetidin-1-yl)-3-oxopropyl)benzonitrile1903298-05-4C21H21N3O3
- 8-{[1-(6-Methoxypyridine-3-carbonyl)piperidin-4-yl]oxy}quinoline1903456-67-6C21H21N3O3
- N-(Quinolin-8-yl)-2-((tetrahydro-2H-pyran-4-yl)methoxy)isonicotinamide2034243-40-6C21H21N3O3
- 2-(2-Methoxyphenyl)-1-(3-(5-phenyl-1,2,4-oxadiazol-3-yl)pyrrolidin-1-yl)ethanone2034353-41-6C21H21N3O3
- N-((5-(Furan-2-yl)pyridin-3-yl)methyl)-4-morpholinobenzamide2034519-57-6C21H21N3O3
- N-((6-(Furan-3-yl)pyridin-3-yl)methyl)-4-morpholinobenzamide2034383-02-1C21H21N3O3
- N-((5-(Furan-3-yl)pyridin-3-yl)methyl)-4-morpholinobenzamide2034235-54-4C21H21N3O3
- N-(2-((3-Cyclopropyl-1,2,4-oxadiazol-5-yl)methyl)phenyl)-2-(2-methoxyphenyl)acetamide2034547-61-8C21H21N3O3
- Methyl 4-(3-(2-methyl-1H-benzo[d]imidazol-1-yl)pyrrolidine-1-carbonyl)benzoate2034559-98-1C21H21N3O3
- N-((3-(Furan-3-yl)pyrazin-2-yl)methyl)-4-phenyltetrahydro-2H-pyran-4-carboxamide2034422-95-0C21H21N3O3
- (E)-2-((1-(3-(4-Methoxyphenyl)acryloyl)piperidin-3-yl)oxy)isonicotinonitrile2035022-64-9C21H21N3O3
- 3-[2-Oxo-6-(piperidin-4-yl)benzo[cd]indol-1(2H)-yl]piperidine-2,6-dione2655646-64-1C21H21N3O3
- Hdac6-IN-383030872-95-5C21H21N3O3
- 5-[1-(3-Methoxybenzoyl)pyrrolidin-2-yl]-3-(4-methylphenyl)-1,2,4-oxadiazole853366-89-9C21H21N3O3
- 2-(4-Ethoxyphenyl)-N-[4-(6-methoxypyridazin-3-yl)phenyl]acetamide941983-52-4C21H21N3O3
- 4-Methoxy-6-oxo-N-phenethyl-1-(o-tolyl)-1,6-dihydropyridazine-3-carboxamide942004-88-8C21H21N3O3
- 3-Cyclopropyl-N-(3,5-dimethoxyphenyl)-1-phenyl-1H-pyrazole-5-carboxamide878250-46-5C21H21N3O3
- 2-(4-Methoxyphenyl)-N-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]-N-prop-2-enylacetamide915929-68-9C21H21N3O3
- 4-Ethoxy-N-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]-N-prop-2-enylbenzamide915929-26-9C21H21N3O3
- 1-(4-Ethoxyphenyl)-4-(3-(p-tolyl)-1,2,4-oxadiazol-5-yl)pyrrolidin-2-one941892-05-3C21H21N3O3
- 1-(4-Methoxyphenyl)-4-[(5-phenylisoxazol-3-yl)carbonyl]piperazine898520-88-2C21H21N3O3
- 4-Ethoxy-N-[4-(5,6,7,8-tetrahydronaphthalen-2-yl)-1,2,5-oxadiazol-3-yl]benzamide912889-95-3C21H21N3O3
- 2-(3-Methylphenoxy)-N-[4-(5,6,7,8-tetrahydronaphthalen-2-yl)-1,2,5-oxadiazol-3-yl]acetamide912889-79-3C21H21N3O3
- N-{4-[4-(Propan-2-yl)phenyl]-1,2,5-oxadiazol-3-yl}-4-(prop-2-en-1-yloxy)benzamide951928-47-5C21H21N3O3
- 1-[4-(1H-Indol-2-ylcarbonyl)piperazin-1-yl]-2-phenoxyethanone951957-33-8C21H21N3O3
- 2-(1H-Indol-4-yloxy)-N-[2-(5-methoxy-1H-indol-3-yl)ethyl]acetamide1010894-95-7C21H21N3O3
- N-[2-(8-Methoxy-1,3,4,5-tetrahydro-2H-pyrido[4,3-b]indol-2-yl)-2-oxoethyl]benzamide1010876-13-7C21H21N3O3
- (2E)-3-(4-Methoxyphenyl)-N-{4-[4-(propan-2-yl)phenyl]-1,2,5-oxadiazol-3-yl}prop-2-enamide1017507-23-1C21H21N3O3
- 3-(3-Methoxyphenyl)-7-(piperidin-1-ylcarbonyl)quinazolin-4(3H)-one1190299-15-0C21H21N3O3
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 Ethyl 4-(4-(2,6-dimethylpyridin-3-yloxy)pyridin-2-ylamino)benzoate, (E)-N-((3-Cyclopentyl-4-oxo-3,4-dihydrophthalazin-1-yl)methyl)-3-(furan-2-yl)acrylamide, 6-Methoxy-N-[3-(2-oxopiperidin-1-yl)phenyl]-1H-indole-2-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 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.