Molecular formula
C21H21FN4O3
52 compounds have this formula on CompoundList.
- Molar mass
- 396.42g/mol
- Monoisotopic mass
- 398.1630Da
- Atoms
- 50
- Elements
- 5
- Rings plus double bonds
- 13
The formula C21H21FN4O3 describes a molecule made of 21 carbon atoms, 21 hydrogen atoms, 1 fluorine atom, 4 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 × 2163.63%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 215.34%1.008 × 21 = 21.168 g/mol
- F Fluorine × 14.79%18.998 × 1 = 18.998 g/mol
- N Nitrogen × 414.13%14.007 × 4 = 56.028 g/mol
- O Oxygen × 312.11%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C21H21FN4O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 52 of 52 compounds
Pradofloxacin
CAS 195532-12-8C21H21FN4O3
![6-[4-(2-Fluorophenyl)piperazin-1-yl]-3-(4-methoxyphenyl)-1H-pyrimidine-2,4-dione chemical structure, C21H21FN4O3, CAS 847398-76-9](/s/FNYMNXASKBFNNN-UHFFFAOYSA-N.svg)
6-[4-(2-Fluorophenyl)piperazin-1-yl]-3-(4-methoxyphenyl)-1H-pyrimidine-2,4-dione
CAS 847398-76-9C21H21FN4O3
![4-((4-Fluoro-2-methyl-1H-indol-5-yl)oxy)-5-methylpyrrolo[2,1-f][1,2,4]triazin-6-yl pivalate chemical structure, C21H21FN4O3, CAS 952490-01-6](/s/PYHMJYZWTVHQDG-UHFFFAOYSA-N.svg)
4-((4-Fluoro-2-methyl-1H-indol-5-yl)oxy)-5-methylpyrrolo[2,1-f][1,2,4]triazin-6-yl pivalate
CAS 952490-01-6C21H21FN4O3
![4-[5-(4-Fluorophenyl)-1,3,4-oxadiazol-2-yl]-N-(2-methoxyphenyl)piperidine-1-carboxamide chemical structure, C21H21FN4O3, CAS 1170448-46-0](/s/HWPJKCSOXATKJW-UHFFFAOYSA-N.svg)
4-[5-(4-Fluorophenyl)-1,3,4-oxadiazol-2-yl]-N-(2-methoxyphenyl)piperidine-1-carboxamide
CAS 1170448-46-0C21H21FN4O3
1-(4-Fluoro-1H-indazol-3-yl)-N-(2-methoxyphenethyl)-5-oxo-3-pyrrolidinecarboxamide
CAS 1435906-05-0C21H21FN4O3
![Methyl 3-[(4-cyano-2-fluorobenzoyl)amino]-4-(4-methylpiperazin-1-yl)benzoate chemical structure, C21H21FN4O3, CAS 893030-83-6](/s/FEECMBKLVAINRX-UHFFFAOYSA-N.svg)
Methyl 3-[(4-cyano-2-fluorobenzoyl)amino]-4-(4-methylpiperazin-1-yl)benzoate
CAS 893030-83-6C21H21FN4O3
![3-Fluoro-4-methoxy-N-[1-(3-pyridin-3-yl-1,2,4-oxadiazol-5-yl)cyclohexyl]benzamide chemical structure, C21H21FN4O3, CAS 1340842-38-7](/s/VFAXIIKEGJGPKR-UHFFFAOYSA-N.svg)
3-Fluoro-4-methoxy-N-[1-(3-pyridin-3-yl-1,2,4-oxadiazol-5-yl)cyclohexyl]benzamide
CAS 1340842-38-7C21H21FN4O3
![5-{1-[(4-Fluorophenoxy)acetyl]piperidin-4-yl}-4-phenyl-2,4-dihydro-3H-1,2,4-triazol-3-one chemical structure, C21H21FN4O3, CAS 1775357-55-5](/s/AGBJBTCIIDJADG-UHFFFAOYSA-N.svg)
5-{1-[(4-Fluorophenoxy)acetyl]piperidin-4-yl}-4-phenyl-2,4-dihydro-3H-1,2,4-triazol-3-one
CAS 1775357-55-5C21H21FN4O3
![5-[1-(3-Fluoro-4-methoxybenzoyl)piperidin-4-yl]-4-phenyl-2,4-dihydro-3H-1,2,4-triazol-3-one chemical structure, C21H21FN4O3, CAS 1775412-11-7](/s/ZULPZSRMGPYCJZ-UHFFFAOYSA-N.svg)
5-[1-(3-Fluoro-4-methoxybenzoyl)piperidin-4-yl]-4-phenyl-2,4-dihydro-3H-1,2,4-triazol-3-one
CAS 1775412-11-7C21H21FN4O3
2-(2-Fluorophenoxy)-1-(4-(6-(furan-2-yl)pyridazin-3-yl)piperazin-1-yl)propan-1-one
CAS 1049263-89-9C21H21FN4O3
1-(3-Fluoro-4-methylphenyl)-3-(2-(3-(4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl)ethyl)urea
CAS 1049293-94-8C21H21FN4O3
1-(3-(3-(4-Fluorophenyl)-6-oxopyridazin-1(6H)-yl)propyl)-3-(4-methoxyphenyl)urea
CAS 1021254-15-8C21H21FN4O3
![1-(2-Fluorophenyl)-3-{3-[3-(4-methoxyphenyl)-6-oxo-1,6-dihydropyridazin-1-yl]propyl}urea chemical structure, C21H21FN4O3, CAS 1040671-42-8](/s/BZACQZVNVCMIFW-UHFFFAOYSA-N.svg)
1-(2-Fluorophenyl)-3-{3-[3-(4-methoxyphenyl)-6-oxo-1,6-dihydropyridazin-1-yl]propyl}urea
CAS 1040671-42-8C21H21FN4O3
1-(4-Fluorophenyl)-3-(3-(3-(4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl)propyl)urea
CAS 1021217-28-6C21H21FN4O3
(S)-3-((R)-5-(6-Amino-4,5-dimethylpyridin-2-yl)-4-fluoro-3-methyl-1-oxoisoindolin-2-yl)piperidine-2,6-dione
CAS 2850300-72-8C21H21FN4O3
4-(4-(4-Fluorobenzyl)piperazin-1-yl)-1-methyl-3-nitroquinolin-2(1H)-one
CAS 384365-69-9C21H21FN4O3
3-(3-(4-(4-Fluorophenyl)piperazin-1-yl)-3-oxopropyl)quinazoline-2,4(1H,3H)-dione
CAS 879757-54-7C21H21FN4O3
4-((1-(3-(4-Fluorophenyl)-1-methyl-1H-pyrazole-5-carbonyl)azetidin-3-yl)oxy)-1,6-dimethylpyridin-2(1H)-one
CAS 2034273-32-8C21H21FN4O3
![N-[2-(3-Cyclopropyl-5-oxo-4-phenyl-4,5-dihydro-1H-1,2,4-triazol-1-yl)ethyl]-2-(2-fluorophenoxy)acetamide chemical structure, C21H21FN4O3, CAS 1396882-15-7](/s/KCTGEQAMUSPNEF-UHFFFAOYSA-N.svg)
N-[2-(3-Cyclopropyl-5-oxo-4-phenyl-4,5-dihydro-1H-1,2,4-triazol-1-yl)ethyl]-2-(2-fluorophenoxy)acetamide
CAS 1396882-15-7C21H21FN4O3
![(2-{3-[2-(4-Fluorophenoxy)ethyl]-1,2,4-oxadiazol-5-yl}-1-pyrrolidinyl)(6-methyl-3-pyridyl)methanone chemical structure, C21H21FN4O3, CAS 2096075-15-7](/s/SOHUCHIENFZXJQ-UHFFFAOYSA-N.svg)
(2-{3-[2-(4-Fluorophenoxy)ethyl]-1,2,4-oxadiazol-5-yl}-1-pyrrolidinyl)(6-methyl-3-pyridyl)methanone
CAS 2096075-15-7C21H21FN4O3
6-(4-(4-Fluorophenyl)piperazin-1-yl)-3-(4-methoxyphenyl)pyrimidine-2,4(1H,3H)-dione
CAS 847398-77-0C21H21FN4O3
N1-(2-cyanophenyl)-N2-(2-(4-fluorophenyl)-2-morpholinoethyl)oxalamide
CAS 941871-29-0C21H21FN4O3
![4-[4-(5-Fluoro-1,2-benzisoxazol-3-yl)piperidino]-4-oxo-N-(4-pyridyl)butanamide chemical structure, C21H21FN4O3, CAS 1219548-42-1](/s/XMAKBSVZSKPOLQ-UHFFFAOYSA-N.svg)
4-[4-(5-Fluoro-1,2-benzisoxazol-3-yl)piperidino]-4-oxo-N-(4-pyridyl)butanamide
CAS 1219548-42-1C21H21FN4O3
N-Cyclohexyl-2-(3-(3-(4-fluorophenyl)-1,2,4-oxadiazol-5-yl)-2-oxopyridin-1(2H)-yl)acetamide
CAS 1251633-77-8C21H21FN4O3
- 1-(4-(2-Fluorophenyl)piperazin-1-yl)-2-(5-(4-methoxyphenyl)-1,3,4-oxadiazol-2-yl)ethanone1251605-64-7C21H21FN4O3
- N-(4-Acetamidophenyl)-1-(4-fluorophenyl)-4-propoxy-1H-pyrazole-3-carboxamide1171409-23-6C21H21FN4O3
- N-(4-Fluorophenyl)-7-methyl-4-oxo-1-(2-oxo-2-(propylamino)ethyl)-1,4-dihydro-1,8-naphthyridine-3-carboxamide1251598-71-6C21H21FN4O3
- N-(3-Fluorophenyl)-7-methyl-4-oxo-1-(2-oxo-2-(propylamino)ethyl)-1,4-dihydro-1,8-naphthyridine-3-carboxamide1251585-12-2C21H21FN4O3
- 1-({[(4-Fluorophenyl)methyl]carbamoyl}methyl)-2-oxo-N-propyl-1,2-dihydroquinoxaline-6-carboxamide1251601-49-6C21H21FN4O3
- 3-Fluoro-4-methoxy-N-(1-((5-phenyl-1,2,4-oxadiazol-3-yl)methyl)pyrrolidin-3-yl)benzamide1396856-48-6C21H21FN4O3
- 3-(3-((3-(2-Fluorophenyl)-1,2,4-oxadiazol-5-yl)methyl)piperidine-1-carbonyl)-1-methylpyridin-2(1H)-one1705069-66-4C21H21FN4O3
- (3-((3-(2-Fluorophenyl)-1,2,4-oxadiazol-5-yl)methyl)piperidin-1-yl)(6-methoxypyridin-3-yl)methanone1705878-98-3C21H21FN4O3
- 2-(2-Fluorophenoxy)-1-(3-(4-(phenoxymethyl)-1H-1,2,3-triazol-1-yl)azetidin-1-yl)propan-1-one1903492-23-8C21H21FN4O3
- N-{2-[4-Cyclopropyl-3-(4-fluorophenyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl]ethyl}-4-methoxybenzamide2320899-98-5C21H21FN4O3
- N-{2-[4-Cyclopropyl-3-(4-methoxyphenyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl]ethyl}-2-fluorobenzamide2319851-14-2C21H21FN4O3
- 2-(3-Fluorophenyl)-N-(2-methoxyphenyl)-3-oxo-1,4,8-triazaspiro[4.5]dec-1-ene-8-carboxamide1189954-46-8C21H21FN4O3
- 2-(3-Fluorophenyl)-N-(3-methoxyphenyl)-3-oxo-1,4,8-triazaspiro[4.5]dec-1-ene-8-carboxamide1189860-49-8C21H21FN4O3
- 1H-Pyrrolo[2,3-c]pyridine-5-carboxylic acid,1-[(4-fluorophenyl)methyl]-3-[(3-oxo-1-piperazinyl)methyl]-,methyl ester868551-80-8C21H21FN4O3
- 3-{[1-(5-Fluoropyridine-3-carbonyl)piperidin-4-yl]methyl}-7-methoxy-3,4-dihydroquinazolin-4-one2549065-78-1C21H21FN4O3
- 3-{[1-(3-Fluoropyridine-4-carbonyl)piperidin-4-yl]methyl}-7-methoxy-3,4-dihydroquinazolin-4-one2549036-28-2C21H21FN4O3
- N-(4-Ethoxyphenyl)-2-{2-[(4-fluorophenyl)amino]-4-methyl-6-oxo-1,6-dihydropyrimidin-1-yl}acetamide2310146-99-5C21H21FN4O3
- 7-Fluoro-3-{[1-(2-methoxypyridine-3-carbonyl)piperidin-4-yl]methyl}-3,4-dihydroquinazolin-4-one2415554-10-6C21H21FN4O3
- 7-Fluoro-3-{[1-(1-methyl-2-oxo-1,2-dihydropyridine-3-carbonyl)piperidin-4-yl]methyl}-3,4-dihydroquinazolin-4-one2415632-26-5C21H21FN4O3
- 3-{[1-(5-Cyclopropyl-1,2-oxazole-3-carbonyl)piperidin-4-yl]methyl}-7-fluoro-3,4-dihydroquinazolin-4-one2415585-89-4C21H21FN4O3
- 3-{1-[(4-Fluorophenyl)methyl]-2-oxopyrrolidin-3-yl}-1-[3-(2-oxoazetidin-1-yl)phenyl]urea2411199-75-0C21H21FN4O3
- 3-{[1-(3,5-Dimethyl-1,2-oxazole-4-carbonyl)pyrrolidin-3-yl]methoxy}-6-(3-fluorophenyl)pyridazine2549065-92-9C21H21FN4O3
- 3-((S)-5-(6-Amino-4,5-dimethylpyridin-2-yl)-4-fluoro-3-methyl-1-oxoisoindolin-2-yl)piperidine-2,6-dione2850300-60-4C21H21FN4O3
- 3-((R)-5-(6-Amino-4,5-dimethylpyridin-2-yl)-4-fluoro-3-methyl-1-oxoisoindolin-2-yl)piperidine-2,6-dione2850300-61-5C21H21FN4O3
- (R)-3-((R)-5-(6-Amino-4,5-dimethylpyridin-2-yl)-4-fluoro-3-methyl-1-oxoisoindolin-2-yl)piperidine-2,6-dioneC21H21FN4O3
- 1-[5-(2-Fluorophenyl)-1-methyl-2-oxo-2,3-dihydro-1H-1,4-benzodiazepin-3-yl]-3-(3-methyloxetan-3-yl)urea2624118-17-6C21H21FN4O3
- 1-[5-(2-Fluorophenyl)-1-methyl-2-oxo-2,3-dihydro-1H-1,4-benzodiazepin-3-yl]-3-(oxolan-3-yl)urea2624114-66-3C21H21FN4O3
- Propanoic acid, 2,2-dimethyl-, 4-[(4-fluoro-2-methyl-1H-indol-5-yl)oxy]-5-methylpyrrolo[2,1-f][1,2,4]triazin-6-yl-2-14C ester1316667-67-0C21H21FN4O3
Frequently asked questions
What is the molar mass of C21H21FN4O3?
The molar mass of C21H21FN4O3 is 396.42 g/mol, calculated from standard atomic weights for 21 carbon atoms, 21 hydrogen atoms, 1 fluorine atom, 4 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 398.1630 Da.
How many compounds have the formula C21H21FN4O3?
CompoundList lists 52 compounds with the molecular formula C21H21FN4O3, including Pradofloxacin, 6-[4-(2-Fluorophenyl)piperazin-1-yl]-3-(4-methoxyphenyl)-1H-pyrimidine-2,4-dione, 4-((4-Fluoro-2-methyl-1H-indol-5-yl)oxy)-5-methylpyrrolo[2,1-f][1,2,4]triazin-6-yl pivalate. 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 C21H21FN4O3?
C21H21FN4O3 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.