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Molecular formula

C21H16FN5O3S

26 compounds have this formula on CompoundList.

Molar mass
437.45g/mol
Monoisotopic mass
437.0958Da
Atoms
47
Elements
6
Rings plus double bonds
16

The formula C21H16FN5O3S describes a molecule made of 21 carbon atoms, 16 hydrogen atoms, 1 fluorine atom, 5 nitrogen atoms, 3 oxygen atoms and 1 sulfur atom. 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 × 2157.66%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 163.69%
    1.008 × 16 = 16.128 g/mol
  • F Fluorine × 14.34%
    18.998 × 1 = 18.998 g/mol
  • N Nitrogen × 516.01%
    14.007 × 5 = 70.035 g/mol
  • O Oxygen × 310.97%
    15.999 × 3 = 47.997 g/mol
  • S Sulfur × 17.33%
    32.06 × 1 = 32.060 g/mol
Look up another formula

Compounds with the formula C21H16FN5O3S

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

Showing 1 to 26 of 26 compounds

N-(Benzo[d][1,3]dioxol-5-ylmethyl)-2-((1-(4-fluorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl)thio)acetamide chemical structure, C21H16FN5O3S, CAS 872856-77-4
N-(Benzo[d][1,3]dioxol-5-ylmethyl)-2-((1-(4-fluorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl)thio)acetamide
CAS 872856-77-4C21H16FN5O3S
N-(1-(4-(4-Fluorophenyl)thiazol-2-yl)-3-methyl-1H-pyrazol-5-yl)-2-(4-nitrophenyl)acetamide chemical structure, C21H16FN5O3S, CAS 1019102-45-4
N-(1-(4-(4-Fluorophenyl)thiazol-2-yl)-3-methyl-1H-pyrazol-5-yl)-2-(4-nitrophenyl)acetamide
CAS 1019102-45-4C21H16FN5O3S
N-(Benzo[d][1,3]dioxol-5-yl)-2-((1-(4-fluorophenyl)-4-methyl-1H-pyrazolo[3,4-d]pyridazin-7-yl)thio)acetamide chemical structure, C21H16FN5O3S, CAS 1105236-07-4
N-(Benzo[d][1,3]dioxol-5-yl)-2-((1-(4-fluorophenyl)-4-methyl-1H-pyrazolo[3,4-d]pyridazin-7-yl)thio)acetamide
CAS 1105236-07-4C21H16FN5O3S
N-(Benzo[d][1,3]dioxol-5-ylmethyl)-2-((3-(4-fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)acetamide chemical structure, C21H16FN5O3S, CAS 852374-11-9
N-(Benzo[d][1,3]dioxol-5-ylmethyl)-2-((3-(4-fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)acetamide
CAS 852374-11-9C21H16FN5O3S
N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-2-((3-(3-fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)acetamide chemical structure, C21H16FN5O3S, CAS 852374-80-2
N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-2-((3-(3-fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)acetamide
CAS 852374-80-2C21H16FN5O3S
N-(Benzo[d][1,3]dioxol-5-ylmethyl)-2-((3-(3-fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)acetamide chemical structure, C21H16FN5O3S, CAS 852374-95-9
N-(Benzo[d][1,3]dioxol-5-ylmethyl)-2-((3-(3-fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)acetamide
CAS 852374-95-9C21H16FN5O3S
N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-2-((3-(4-fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)acetamide chemical structure, C21H16FN5O3S, CAS 852373-96-7
N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-2-((3-(4-fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)acetamide
CAS 852373-96-7C21H16FN5O3S
6-[[4-(4-Fluorophenyl)-5-phenacylsulfanyl-1,2,4-triazol-3-yl]methyl]-1H-pyrimidine-2,4-dione chemical structure, C21H16FN5O3S, CAS 852154-57-5
6-[[4-(4-Fluorophenyl)-5-phenacylsulfanyl-1,2,4-triazol-3-yl]methyl]-1H-pyrimidine-2,4-dione
CAS 852154-57-5C21H16FN5O3S
Methyl 4-(2-((3-(4-fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)acetamido)benzoate chemical structure, C21H16FN5O3S, CAS 852374-02-8
Methyl 4-(2-((3-(4-fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)acetamido)benzoate
CAS 852374-02-8C21H16FN5O3S
Methyl 4-(2-((3-(3-fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)acetamido)benzoate chemical structure, C21H16FN5O3S, CAS 852374-86-8
Methyl 4-(2-((3-(3-fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)acetamido)benzoate
CAS 852374-86-8C21H16FN5O3S
2-[3-(2-Fluoro-4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[(2Z)-4-(pyridin-4-yl)-1,3-thiazol-2(3H)-ylidene]acetamide chemical structure, C21H16FN5O3S, CAS 1282126-94-6
2-[3-(2-Fluoro-4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[(2Z)-4-(pyridin-4-yl)-1,3-thiazol-2(3H)-ylidene]acetamide
CAS 1282126-94-6C21H16FN5O3S
2-[3-(4-Fluoro-2-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[(2Z)-4-(pyridin-2-yl)-1,3-thiazol-2(3H)-ylidene]acetamide chemical structure, C21H16FN5O3S, CAS 1282102-88-8
2-[3-(4-Fluoro-2-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[(2Z)-4-(pyridin-2-yl)-1,3-thiazol-2(3H)-ylidene]acetamide
CAS 1282102-88-8C21H16FN5O3S
2-[3-(2-Fluoro-4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[(2Z)-4-(pyridin-2-yl)-1,3-thiazol-2(3H)-ylidene]acetamide chemical structure, C21H16FN5O3S, CAS 1282095-71-9
2-[3-(2-Fluoro-4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[(2Z)-4-(pyridin-2-yl)-1,3-thiazol-2(3H)-ylidene]acetamide
CAS 1282095-71-9C21H16FN5O3S
2-[3-(4-Fluoro-2-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[(2Z)-4-(pyridin-4-yl)-1,3-thiazol-2(3H)-ylidene]acetamide chemical structure, C21H16FN5O3S, CAS 1282102-23-1
2-[3-(4-Fluoro-2-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[(2Z)-4-(pyridin-4-yl)-1,3-thiazol-2(3H)-ylidene]acetamide
CAS 1282102-23-1C21H16FN5O3S
2-[3-(4-Fluoro-2-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[(2Z)-4-(pyridin-3-yl)-1,3-thiazol-2(3H)-ylidene]acetamide chemical structure, C21H16FN5O3S, CAS 1310945-98-2
2-[3-(4-Fluoro-2-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[(2Z)-4-(pyridin-3-yl)-1,3-thiazol-2(3H)-ylidene]acetamide
CAS 1310945-98-2C21H16FN5O3S
2-[3-(2-Fluoro-4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[(2Z)-4-(pyridin-3-yl)-1,3-thiazol-2(3H)-ylidene]acetamide chemical structure, C21H16FN5O3S, CAS 1310945-49-3
2-[3-(2-Fluoro-4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[(2Z)-4-(pyridin-3-yl)-1,3-thiazol-2(3H)-ylidene]acetamide
CAS 1310945-49-3C21H16FN5O3S
N-(1-(4-(4-Fluorophenyl)thiazol-2-yl)-3-methyl-1H-pyrazol-5-yl)-2-methyl-3-nitrobenzamide chemical structure, C21H16FN5O3S, CAS 1019102-40-9
N-(1-(4-(4-Fluorophenyl)thiazol-2-yl)-3-methyl-1H-pyrazol-5-yl)-2-methyl-3-nitrobenzamide
CAS 1019102-40-9C21H16FN5O3S
N-(1-(4-(4-Fluorophenyl)thiazol-2-yl)-3-methyl-1H-pyrazol-5-yl)-4-methyl-3-nitrobenzamide chemical structure, C21H16FN5O3S, CAS 1019102-43-2
N-(1-(4-(4-Fluorophenyl)thiazol-2-yl)-3-methyl-1H-pyrazol-5-yl)-4-methyl-3-nitrobenzamide
CAS 1019102-43-2C21H16FN5O3S
N-[(2H-1,3-Benzodioxol-5-yl)methyl]-2-{[6-(4-fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl]sulfanyl}acetamide chemical structure, C21H16FN5O3S, CAS 894058-08-3
N-[(2H-1,3-Benzodioxol-5-yl)methyl]-2-{[6-(4-fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl]sulfanyl}acetamide
CAS 894058-08-3C21H16FN5O3S
N-(2-(2-(2-Fluorophenyl)thiazolo[3,2-b][1,2,4]triazol-6-yl)ethyl)-2-(2-oxobenzo[d]oxazol-3(2H)-yl)acetamide chemical structure, C21H16FN5O3S, CAS 1211677-96-1
N-(2-(2-(2-Fluorophenyl)thiazolo[3,2-b][1,2,4]triazol-6-yl)ethyl)-2-(2-oxobenzo[d]oxazol-3(2H)-yl)acetamide
CAS 1211677-96-1C21H16FN5O3S
4-(2-(7-(4-Fluorophenyl)-2-methyl-4-oxothiazolo[4,5-d]pyridazin-5(4H)-yl)acetamido)benzamide chemical structure, C21H16FN5O3S, CAS 941897-97-8
4-(2-(7-(4-Fluorophenyl)-2-methyl-4-oxothiazolo[4,5-d]pyridazin-5(4H)-yl)acetamido)benzamide
CAS 941897-97-8C21H16FN5O3S
N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-2-((1-(4-fluorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl)thio)acetamide chemical structure, C21H16FN5O3S, CAS 872856-74-1
N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-2-((1-(4-fluorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl)thio)acetamide
CAS 872856-74-1C21H16FN5O3S
Methyl 4-(2-((1-(4-fluorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl)thio)acetamido)benzoate chemical structure, C21H16FN5O3S, CAS 893936-86-2
Methyl 4-(2-((1-(4-fluorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl)thio)acetamido)benzoate
CAS 893936-86-2C21H16FN5O3S
Methyl 4-(2-((6-(4-fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)thio)acetamido)benzoate chemical structure, C21H16FN5O3S, CAS 894057-77-3
Methyl 4-(2-((6-(4-fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)thio)acetamido)benzoate
CAS 894057-77-3C21H16FN5O3S

Frequently asked questions

What is the molar mass of C21H16FN5O3S?

The molar mass of C21H16FN5O3S is 437.45 g/mol, calculated from standard atomic weights for 21 carbon atoms, 16 hydrogen atoms, 1 fluorine atom, 5 nitrogen atoms, 3 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 437.0958 Da.

How many compounds have the formula C21H16FN5O3S?

CompoundList lists 26 compounds with the molecular formula C21H16FN5O3S, including N-(Benzo[d][1,3]dioxol-5-ylmethyl)-2-((1-(4-fluorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl)thio)acetamide, N-(1-(4-(4-Fluorophenyl)thiazol-2-yl)-3-methyl-1H-pyrazol-5-yl)-2-(4-nitrophenyl)acetamide, N-(Benzo[d][1,3]dioxol-5-yl)-2-((1-(4-fluorophenyl)-4-methyl-1H-pyrazolo[3,4-d]pyridazin-7-yl)thio)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 C21H16FN5O3S?

C21H16FN5O3S has a degree of unsaturation of 16. 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.