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Molecular formula

C21H20N4O3S

217 compounds have this formula on CompoundList.

Molar mass
408.48g/mol
Monoisotopic mass
408.1256Da
Atoms
49
Elements
5
Rings plus double bonds
14

The formula C21H20N4O3S describes a molecule made of 21 carbon atoms, 20 hydrogen atoms, 4 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 × 2161.75%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 204.94%
    1.008 × 20 = 20.160 g/mol
  • N Nitrogen × 413.72%
    14.007 × 4 = 56.028 g/mol
  • O Oxygen × 311.75%
    15.999 × 3 = 47.997 g/mol
  • S Sulfur × 17.85%
    32.06 × 1 = 32.060 g/mol
Look up another formula

Compounds with the formula C21H20N4O3S

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

Showing 201 to 217 of 217 compounds

N-(2,6-Dimethylphenyl)-2-{[5-(furan-2-yl)-4-(furan-2-ylmethyl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetamide chemical structure, C21H20N4O3S, CAS 769133-28-0
N-(2,6-Dimethylphenyl)-2-{[5-(furan-2-yl)-4-(furan-2-ylmethyl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetamide
CAS 769133-28-0C21H20N4O3S
(E)-Methyl 2-((1,3-dimethyl-1H-pyrazol-4-yl)methylene)-7-methyl-3-oxo-5-phenyl-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate chemical structure, C21H20N4O3S, CAS 492455-90-0
(E)-Methyl 2-((1,3-dimethyl-1H-pyrazol-4-yl)methylene)-7-methyl-3-oxo-5-phenyl-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate
CAS 492455-90-0C21H20N4O3S
N-(3-Carbamoyl-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)-1-(3-methylphenyl)-4-oxo-1,4-dihydropyridazine-3-carboxamide chemical structure, C21H20N4O3S, CAS 874356-51-1
N-(3-Carbamoyl-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)-1-(3-methylphenyl)-4-oxo-1,4-dihydropyridazine-3-carboxamide
CAS 874356-51-1C21H20N4O3S
2-{[4-(Phenylsulfanyl)-6-(piperidin-1-yl)-1,3,5-triazin-2-yl]oxy}benzoic acid chemical structure, C21H20N4O3S, CAS 63545-92-6
2-{[4-(Phenylsulfanyl)-6-(piperidin-1-yl)-1,3,5-triazin-2-yl]oxy}benzoic acid
CAS 63545-92-6C21H20N4O3S
N-[3-(Methylcarbamoyl)-4,5,6,7-tetrahydro-1-benzothiophen-2-yl]-4-oxo-1-phenyl-1,4-dihydropyridazine-3-carboxamide chemical structure, C21H20N4O3S, CAS 919066-45-8
N-[3-(Methylcarbamoyl)-4,5,6,7-tetrahydro-1-benzothiophen-2-yl]-4-oxo-1-phenyl-1,4-dihydropyridazine-3-carboxamide
CAS 919066-45-8C21H20N4O3S
5-(2-Methoxyethyl)-3-oxo-2-phenyl-N-(thiophen-2-ylmethyl)-3,5-dihydro-2H-pyrazolo[4,3-c]pyridine-7-carboxamide chemical structure, C21H20N4O3S, CAS 921515-13-1
5-(2-Methoxyethyl)-3-oxo-2-phenyl-N-(thiophen-2-ylmethyl)-3,5-dihydro-2H-pyrazolo[4,3-c]pyridine-7-carboxamide
CAS 921515-13-1C21H20N4O3S
Benzamide, 2-[methyl(methylsulfonyl)amino]-N-[4-(2-phenyldiazenyl)phenyl]- chemical structure, C21H20N4O3S, CAS 1198060-35-3
Benzamide, 2-[methyl(methylsulfonyl)amino]-N-[4-(2-phenyldiazenyl)phenyl]-
CAS 1198060-35-3C21H20N4O3S
1-Benzyl-N-[2-(methylsulfanyl)-4-oxo-3,4-dihydroquinazolin-3-yl]-5-oxopyrrolidine-3-carboxamide chemical structure, C21H20N4O3S, CAS 2640896-53-1
1-Benzyl-N-[2-(methylsulfanyl)-4-oxo-3,4-dihydroquinazolin-3-yl]-5-oxopyrrolidine-3-carboxamide
CAS 2640896-53-1C21H20N4O3S
Acetamide, 2-[methyl(phenylsulfonyl)amino]-N-[4-(2-phenyldiazenyl)phenyl]- chemical structure, C21H20N4O3S, CAS 1287185-61-8
Acetamide, 2-[methyl(phenylsulfonyl)amino]-N-[4-(2-phenyldiazenyl)phenyl]-
CAS 1287185-61-8C21H20N4O3S
4-Ethoxy-N-[3-methyl-1-(5-quinolinyl)-1H-pyrazol-5-yl]benzenesulfonamide chemical structure, C21H20N4O3S, CAS 1452182-96-5
4-Ethoxy-N-[3-methyl-1-(5-quinolinyl)-1H-pyrazol-5-yl]benzenesulfonamide
CAS 1452182-96-5C21H20N4O3S
2-({4-[(4-Oxo-3,4-dihydroquinazolin-3-yl)methyl]piperidin-1-yl}sulfonyl)benzonitrile chemical structure, C21H20N4O3S, CAS 2380185-27-1
2-({4-[(4-Oxo-3,4-dihydroquinazolin-3-yl)methyl]piperidin-1-yl}sulfonyl)benzonitrile
CAS 2380185-27-1C21H20N4O3S
4-({4-[(4-Oxo-3,4-dihydroquinazolin-3-yl)methyl]piperidin-1-yl}sulfonyl)benzonitrile chemical structure, C21H20N4O3S, CAS 2380182-06-7
4-({4-[(4-Oxo-3,4-dihydroquinazolin-3-yl)methyl]piperidin-1-yl}sulfonyl)benzonitrile
CAS 2380182-06-7C21H20N4O3S
2-Methyl-1-{1-[4-(2-methyl-1,3-oxazol-4-yl)benzenesulfonyl]azetidin-3-yl}-1H-1,3-benzodiazole chemical structure, C21H20N4O3S, CAS 2380178-00-5
2-Methyl-1-{1-[4-(2-methyl-1,3-oxazol-4-yl)benzenesulfonyl]azetidin-3-yl}-1H-1,3-benzodiazole
CAS 2380178-00-5C21H20N4O3S
1-(5-{6H,7H,8H,9H-Pyrido[2,3-b]1,6-naphthyridine-7-sulfonyl}-2,3-dihydro-1H-indol-1-yl)ethan-1-one chemical structure, C21H20N4O3S, CAS 2742007-52-7
1-(5-{6H,7H,8H,9H-Pyrido[2,3-b]1,6-naphthyridine-7-sulfonyl}-2,3-dihydro-1H-indol-1-yl)ethan-1-one
CAS 2742007-52-7C21H20N4O3S
N-[2-(Ethylsulfanyl)-4-oxo-3,4-dihydroquinazolin-3-yl]-5-oxo-1-phenylpyrrolidine-3-carboxamide chemical structure, C21H20N4O3S, CAS 2770581-52-5
N-[2-(Ethylsulfanyl)-4-oxo-3,4-dihydroquinazolin-3-yl]-5-oxo-1-phenylpyrrolidine-3-carboxamide
CAS 2770581-52-5C21H20N4O3S
Benzhydryl (2S,3S,5R)-3-(azidomethyl)-3-methyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate chemical structure, C21H20N4O3S, CAS 89051-47-8
Benzhydryl (2S,3S,5R)-3-(azidomethyl)-3-methyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate
CAS 89051-47-8C21H20N4O3S
Methyl (2Z)-2-[(1,5-dimethylpyrazol-4-yl)methylidene]-7-methyl-3-oxo-5-phenyl-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate chemical structure, C21H20N4O3S
Methyl (2Z)-2-[(1,5-dimethylpyrazol-4-yl)methylidene]-7-methyl-3-oxo-5-phenyl-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
C21H20N4O3S

Frequently asked questions

What is the molar mass of C21H20N4O3S?

The molar mass of C21H20N4O3S is 408.48 g/mol, calculated from standard atomic weights for 21 carbon atoms, 20 hydrogen atoms, 4 nitrogen atoms, 3 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 408.1256 Da.

How many compounds have the formula C21H20N4O3S?

CompoundList lists 217 compounds with the molecular formula C21H20N4O3S, including N-(2,6-Dimethylphenyl)-2-{[5-(furan-2-yl)-4-(furan-2-ylmethyl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetamide, (E)-Methyl 2-((1,3-dimethyl-1H-pyrazol-4-yl)methylene)-7-methyl-3-oxo-5-phenyl-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate, N-(3-Carbamoyl-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)-1-(3-methylphenyl)-4-oxo-1,4-dihydropyridazine-3-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 C21H20N4O3S?

C21H20N4O3S has a degree of unsaturation of 14. 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.