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Molecular formula

C18H21FN4O4

18 compounds have this formula on CompoundList.

Molar mass
376.39g/mol
Monoisotopic mass
376.1547Da
Atoms
48
Elements
5
Rings plus double bonds
10

The formula C18H21FN4O4 describes a molecule made of 18 carbon atoms, 21 hydrogen atoms, 1 fluorine atom, 4 nitrogen atoms and 4 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 × 1857.44%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 215.62%
    1.008 × 21 = 21.168 g/mol
  • F Fluorine × 15.05%
    18.998 × 1 = 18.998 g/mol
  • N Nitrogen × 414.89%
    14.007 × 4 = 56.028 g/mol
  • O Oxygen × 417.00%
    15.999 × 4 = 63.996 g/mol
Look up another formula

Compounds with the formula C18H21FN4O4

Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.

Showing 1 to 18 of 18 compounds

Antofloxacin chemical structure, C18H21FN4O4, CAS 119354-43-7
Antofloxacin
CAS 119354-43-7C18H21FN4O4
N-[(4-Fluorophenyl)methyl]-5-hydroxy-1-methyl-2-(4-methylmorpholin-3-yl)-6-oxo-pyrimidine-4-carboxamide chemical structure, C18H21FN4O4, CAS 518047-37-5
N-[(4-Fluorophenyl)methyl]-5-hydroxy-1-methyl-2-(4-methylmorpholin-3-yl)-6-oxo-pyrimidine-4-carboxamide
CAS 518047-37-5C18H21FN4O4
3-Quinolinecarboxylic acid,5-amino-7-(3-amino-1-pyrrolidinyl)-1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-4-oxo-,dihydrochloride chemical structure, C18H21FN4O4, CAS 112811-80-0
3-Quinolinecarboxylic acid,5-amino-7-(3-amino-1-pyrrolidinyl)-1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-4-oxo-,dihydrochloride
CAS 112811-80-0C18H21FN4O4
3-Quinolinecarboxylic acid, 1,4-dihydro-5-amino-7-(3-amino-1-pyrrolidinyl)-1-cyclopropyl-6-fluoro-8-methoxy-4-oxo-, (S)- chemical structure, C18H21FN4O4, CAS 146981-09-1
3-Quinolinecarboxylic acid, 1,4-dihydro-5-amino-7-(3-amino-1-pyrrolidinyl)-1-cyclopropyl-6-fluoro-8-methoxy-4-oxo-, (S)-
CAS 146981-09-1C18H21FN4O4
7-[3-(Acetylmethylamino)-1-pyrrolidinyl]-1-ethyl-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic acid chemical structure, C18H21FN4O4, CAS 79286-80-9
7-[3-(Acetylmethylamino)-1-pyrrolidinyl]-1-ethyl-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic acid
CAS 79286-80-9C18H21FN4O4
Trelagliptin impurity 4 chemical structure, C18H21FN4O4, CAS 1917324-15-2
Trelagliptin impurity 4
CAS 1917324-15-2C18H21FN4O4
N1-(2-(4-fluorophenyl)-2-morpholinoethyl)-N2-(5-methylisoxazol-3-yl)oxalamide chemical structure, C18H21FN4O4, CAS 941976-59-6
N1-(2-(4-fluorophenyl)-2-morpholinoethyl)-N2-(5-methylisoxazol-3-yl)oxalamide
CAS 941976-59-6C18H21FN4O4
N-(3-Fluoro-4-methoxyphenyl)-2-[4-methyl-2-(morpholin-4-yl)-6-oxo-1,6-dihydropyrimidin-1-yl]acetamide chemical structure, C18H21FN4O4, CAS 1251605-31-8
N-(3-Fluoro-4-methoxyphenyl)-2-[4-methyl-2-(morpholin-4-yl)-6-oxo-1,6-dihydropyrimidin-1-yl]acetamide
CAS 1251605-31-8C18H21FN4O4
1-(4-Fluorophenoxy)-3-(4-{3-[hydroxy(oxido)amino]pyridin-2-yl}piperazin-1-yl)propan-2-ol chemical structure, C18H21FN4O4, CAS 1858255-69-2
1-(4-Fluorophenoxy)-3-(4-{3-[hydroxy(oxido)amino]pyridin-2-yl}piperazin-1-yl)propan-2-ol
CAS 1858255-69-2C18H21FN4O4
1-Acetyl-N'-[1-(4-fluorophenyl)-2,5-dioxopyrrolidin-3-yl]piperidine-4-carbohydrazide chemical structure, C18H21FN4O4, CAS 956791-48-3
1-Acetyl-N'-[1-(4-fluorophenyl)-2,5-dioxopyrrolidin-3-yl]piperidine-4-carbohydrazide
CAS 956791-48-3C18H21FN4O4
1-[2-(2-Fluorophenoxy)acetyl]-N-[(3-methyl-1,2,4-oxadiazol-5-yl)methyl]piperidine-4-carboxamide chemical structure, C18H21FN4O4, CAS 1334376-23-6
1-[2-(2-Fluorophenoxy)acetyl]-N-[(3-methyl-1,2,4-oxadiazol-5-yl)methyl]piperidine-4-carboxamide
CAS 1334376-23-6C18H21FN4O4
7H-Pyrido(3,2,1-ij)(4,1,2)benzoxadiazine-6-carboxylic acid, 2,3-dihydro-9-fluoro-3-methyl-10-(3-((methylamino)methyl)-1-pyrrolidinyl)-7-oxo- chemical structure, C18H21FN4O4, CAS 115550-46-4
7H-Pyrido(3,2,1-ij)(4,1,2)benzoxadiazine-6-carboxylic acid, 2,3-dihydro-9-fluoro-3-methyl-10-(3-((methylamino)methyl)-1-pyrrolidinyl)-7-oxo-
CAS 115550-46-4C18H21FN4O4
7H-Pyrido(3,2,1-ij)(4,1,2)benzoxadiazine-6-carboxylic acid, 2,3-dihydro-10-(3,4-dimethyl-1-piperazinyl)-9-fluoro-3-methyl-7-oxo- chemical structure, C18H21FN4O4, CAS 115550-48-6
7H-Pyrido(3,2,1-ij)(4,1,2)benzoxadiazine-6-carboxylic acid, 2,3-dihydro-10-(3,4-dimethyl-1-piperazinyl)-9-fluoro-3-methyl-7-oxo-
CAS 115550-48-6C18H21FN4O4
1-(4-Fluorophenyl)-4-methoxy-N-(2-morpholin-4-ylethyl)-6-oxopyridazine-3-carboxamide chemical structure, C18H21FN4O4, CAS 941879-63-6
1-(4-Fluorophenyl)-4-methoxy-N-(2-morpholin-4-ylethyl)-6-oxopyridazine-3-carboxamide
CAS 941879-63-6C18H21FN4O4
(1-(2-(2-Fluorophenyl)-2-hydroxyethyl)-1H-1,2,3-triazol-4-yl)(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)methanone chemical structure, C18H21FN4O4, CAS 2034477-58-0
(1-(2-(2-Fluorophenyl)-2-hydroxyethyl)-1H-1,2,3-triazol-4-yl)(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)methanone
CAS 2034477-58-0C18H21FN4O4
N-(2,4-Dimethoxyphenyl)-4-[(5-fluoropyrimidin-2-yl)oxy]piperidine-1-carboxamide chemical structure, C18H21FN4O4, CAS 2380085-35-6
N-(2,4-Dimethoxyphenyl)-4-[(5-fluoropyrimidin-2-yl)oxy]piperidine-1-carboxamide
CAS 2380085-35-6C18H21FN4O4
Ethyl N-[2-(ethoxycarbonylamino)-6-[(4-fluorophenyl)methylamino]-3-pyridinyl]carbamate chemical structure, C18H21FN4O4, CAS 1552323-75-7
Ethyl N-[2-(ethoxycarbonylamino)-6-[(4-fluorophenyl)methylamino]-3-pyridinyl]carbamate
CAS 1552323-75-7C18H21FN4O4
1-[1-(6-Fluoro-1,3-benzoxazol-2-yl)piperidin-4-yl]-3-(2-methoxyethyl)imidazolidine-2,4-dione chemical structure, C18H21FN4O4, CAS 2741944-27-2
1-[1-(6-Fluoro-1,3-benzoxazol-2-yl)piperidin-4-yl]-3-(2-methoxyethyl)imidazolidine-2,4-dione
CAS 2741944-27-2C18H21FN4O4

Frequently asked questions

What is the molar mass of C18H21FN4O4?

The molar mass of C18H21FN4O4 is 376.39 g/mol, calculated from standard atomic weights for 18 carbon atoms, 21 hydrogen atoms, 1 fluorine atom, 4 nitrogen atoms and 4 oxygen atoms. The monoisotopic mass is 376.1547 Da.

How many compounds have the formula C18H21FN4O4?

CompoundList lists 18 compounds with the molecular formula C18H21FN4O4, including Antofloxacin, N-[(4-Fluorophenyl)methyl]-5-hydroxy-1-methyl-2-(4-methylmorpholin-3-yl)-6-oxo-pyrimidine-4-carboxamide, 3-Quinolinecarboxylic acid,5-amino-7-(3-amino-1-pyrrolidinyl)-1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-4-oxo-,dihydrochloride. 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 C18H21FN4O4?

C18H21FN4O4 has a degree of unsaturation of 10. 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.