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Molecular formula

C21H15N3O4S

33 compounds have this formula on CompoundList.

Molar mass
405.43g/mol
Monoisotopic mass
405.0783Da
Atoms
44
Elements
5
Rings plus double bonds
16

The formula C21H15N3O4S describes a molecule made of 21 carbon atoms, 15 hydrogen atoms, 3 nitrogen atoms, 4 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 × 2162.21%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 153.73%
    1.008 × 15 = 15.120 g/mol
  • N Nitrogen × 310.36%
    14.007 × 3 = 42.021 g/mol
  • O Oxygen × 415.78%
    15.999 × 4 = 63.996 g/mol
  • S Sulfur × 17.91%
    32.06 × 1 = 32.060 g/mol
Look up another formula

Compounds with the formula C21H15N3O4S

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

Showing 1 to 33 of 33 compounds

4-[(Z)-(6-Benzyl-3,7-dioxo-7H-[1,3]thiazolo[3,2-B][1,2,4]triazin-2(3H)-ylidene)methyl]phenyl acetate chemical structure, C21H15N3O4S, CAS 463959-52-6
4-[(Z)-(6-Benzyl-3,7-dioxo-7H-[1,3]thiazolo[3,2-B][1,2,4]triazin-2(3H)-ylidene)methyl]phenyl acetate
CAS 463959-52-6C21H15N3O4S
Fluorescein thiosemicarbazide chemical structure, C21H15N3O4S, CAS 75323-82-9
Fluorescein thiosemicarbazide
CAS 75323-82-9C21H15N3O4S
N-[[4-(Furan-2-carbonylamino)phenyl]carbamothioyl]-1-benzofuran-2-carboxamide chemical structure, C21H15N3O4S, CAS 428829-01-0
N-[[4-(Furan-2-carbonylamino)phenyl]carbamothioyl]-1-benzofuran-2-carboxamide
CAS 428829-01-0C21H15N3O4S
N-[4-(1,3-Benzothiazol-2-yl)-3-hydroxyphenyl]-4-methyl-3-nitrobenzamide chemical structure, C21H15N3O4S, CAS 332152-82-6
N-[4-(1,3-Benzothiazol-2-yl)-3-hydroxyphenyl]-4-methyl-3-nitrobenzamide
CAS 332152-82-6C21H15N3O4S
N-[4-(1,3-Benzothiazol-2-yl)phenyl]-4-methoxy-3-nitrobenzamide chemical structure, C21H15N3O4S, CAS 432015-35-5
N-[4-(1,3-Benzothiazol-2-yl)phenyl]-4-methoxy-3-nitrobenzamide
CAS 432015-35-5C21H15N3O4S
Ethyl [(3Z)-2-oxo-3-(3-oxo[1,3]thiazolo[3,2-a]benzimidazol-2(3H)-ylidene)-2,3-dihydro-1H-indol-1-yl]acetate chemical structure, C21H15N3O4S, CAS 301680-09-1
Ethyl [(3Z)-2-oxo-3-(3-oxo[1,3]thiazolo[3,2-a]benzimidazol-2(3H)-ylidene)-2,3-dihydro-1H-indol-1-yl]acetate
CAS 301680-09-1C21H15N3O4S
N-(4H-Chromeno[4,3-d]thiazol-2-yl)-4-(2,5-dioxopyrrolidin-1-yl)benzamide chemical structure, C21H15N3O4S, CAS 681161-98-8
N-(4H-Chromeno[4,3-d]thiazol-2-yl)-4-(2,5-dioxopyrrolidin-1-yl)benzamide
CAS 681161-98-8C21H15N3O4S
N-(1,3-Benzodioxol-5-yl)-2-(4-oxo-7-phenylthieno[3,2-d]pyrimidin-3(4H)-yl)acetamide chemical structure, C21H15N3O4S, CAS 1105224-28-9
N-(1,3-Benzodioxol-5-yl)-2-(4-oxo-7-phenylthieno[3,2-d]pyrimidin-3(4H)-yl)acetamide
CAS 1105224-28-9C21H15N3O4S
N-[1-Methyl-4-oxo-3-(thiophen-2-yl)-1,4-dihydroquinolin-2-yl]-4-nitrobenzamide chemical structure, C21H15N3O4S, CAS 879450-78-9
N-[1-Methyl-4-oxo-3-(thiophen-2-yl)-1,4-dihydroquinolin-2-yl]-4-nitrobenzamide
CAS 879450-78-9C21H15N3O4S
N-[3-(1,3-Benzothiazol-2-yl)phenyl]-4-methoxy-3-nitrobenzamide chemical structure, C21H15N3O4S, CAS 431933-01-6
N-[3-(1,3-Benzothiazol-2-yl)phenyl]-4-methoxy-3-nitrobenzamide
CAS 431933-01-6C21H15N3O4S
2-(Naphthalen-1-yloxy)-N-(5-(4-nitrophenyl)thiazol-2-yl)acetamide chemical structure, C21H15N3O4S, CAS 868212-98-0
2-(Naphthalen-1-yloxy)-N-(5-(4-nitrophenyl)thiazol-2-yl)acetamide
CAS 868212-98-0C21H15N3O4S
N-[[3-(Furan-2-carbonylamino)phenyl]carbamothioyl]-1-benzofuran-2-carboxamide chemical structure, C21H15N3O4S, CAS 428823-77-2
N-[[3-(Furan-2-carbonylamino)phenyl]carbamothioyl]-1-benzofuran-2-carboxamide
CAS 428823-77-2C21H15N3O4S
6-Methoxy-2-(5-methyl-1,3,4-thiadiazol-2-yl)-1-phenyl-1,2-dihydrochromeno[2,3-c]pyrrole-3,9-dione chemical structure, C21H15N3O4S, CAS 886174-55-6
6-Methoxy-2-(5-methyl-1,3,4-thiadiazol-2-yl)-1-phenyl-1,2-dihydrochromeno[2,3-c]pyrrole-3,9-dione
CAS 886174-55-6C21H15N3O4S
N-(5-Acetyl-4-phenylthiazol-2-yl)-2-(1,3-dioxoisoindolin-2-yl)acetamide chemical structure, C21H15N3O4S, CAS 477545-67-8
N-(5-Acetyl-4-phenylthiazol-2-yl)-2-(1,3-dioxoisoindolin-2-yl)acetamide
CAS 477545-67-8C21H15N3O4S
Methyl 4-[(E)-(6-benzyl-3,7-dioxo-7H-[1,3]thiazolo[3,2-b][1,2,4]triazin-2(3H)-ylidene)methyl]benzoate chemical structure, C21H15N3O4S, CAS 384368-17-6
Methyl 4-[(E)-(6-benzyl-3,7-dioxo-7H-[1,3]thiazolo[3,2-b][1,2,4]triazin-2(3H)-ylidene)methyl]benzoate
CAS 384368-17-6C21H15N3O4S
3-[(Z)-(6-Benzyl-3,7-dioxo-7H-[1,3]thiazolo[3,2-b][1,2,4]triazin-2(3H)-ylidene)methyl]phenyl acetate chemical structure, C21H15N3O4S, CAS 606955-09-3
3-[(Z)-(6-Benzyl-3,7-dioxo-7H-[1,3]thiazolo[3,2-b][1,2,4]triazin-2(3H)-ylidene)methyl]phenyl acetate
CAS 606955-09-3C21H15N3O4S
N-(5-Acetyl-4-methylthiazol-2-yl)-4-(1,3-dioxoisoindolin-2-yl)benzamide chemical structure, C21H15N3O4S, CAS 900716-39-4
N-(5-Acetyl-4-methylthiazol-2-yl)-4-(1,3-dioxoisoindolin-2-yl)benzamide
CAS 900716-39-4C21H15N3O4S
(Z)-4-(2-(2-(Benzo[d][1,3]dioxol-5-ylamino)-1-cyanovinyl)thiazol-4-yl)phenyl acetate chemical structure, C21H15N3O4S, CAS 1021219-37-3
(Z)-4-(2-(2-(Benzo[d][1,3]dioxol-5-ylamino)-1-cyanovinyl)thiazol-4-yl)phenyl acetate
CAS 1021219-37-3C21H15N3O4S
(E)-Methyl 4-((2-(4-(benzo[d][1,3]dioxol-5-yl)thiazol-2-yl)-2-cyanovinyl)amino)benzoate chemical structure, C21H15N3O4S, CAS 1021263-23-9
(E)-Methyl 4-((2-(4-(benzo[d][1,3]dioxol-5-yl)thiazol-2-yl)-2-cyanovinyl)amino)benzoate
CAS 1021263-23-9C21H15N3O4S
2-[(Z)-(6-Benzyl-3,7-dioxo-7H-[1,3]thiazolo[3,2-b][1,2,4]triazin-2(3H)-ylidene)methyl]phenyl acetate chemical structure, C21H15N3O4S, CAS 463959-75-3
2-[(Z)-(6-Benzyl-3,7-dioxo-7H-[1,3]thiazolo[3,2-b][1,2,4]triazin-2(3H)-ylidene)methyl]phenyl acetate
CAS 463959-75-3C21H15N3O4S
N-[3-(1,3-Benzothiazol-2-yl)phenyl]-2-(4-nitrophenoxy)acetamide chemical structure, C21H15N3O4S, CAS 431984-38-2
N-[3-(1,3-Benzothiazol-2-yl)phenyl]-2-(4-nitrophenoxy)acetamide
CAS 431984-38-2C21H15N3O4S
N-[1-Methyl-4-oxo-3-(thiophen-2-yl)-1,4-dihydroquinolin-2-yl]-3-nitrobenzamide chemical structure, C21H15N3O4S, CAS 879449-24-8
N-[1-Methyl-4-oxo-3-(thiophen-2-yl)-1,4-dihydroquinolin-2-yl]-3-nitrobenzamide
CAS 879449-24-8C21H15N3O4S
2-(1,3-Dioxoisoindol-2-yl)-N-(4-methoxy-3-prop-2-ynyl-1,3-benzothiazol-2-ylidene)acetamide chemical structure, C21H15N3O4S, CAS 868378-07-8
2-(1,3-Dioxoisoindol-2-yl)-N-(4-methoxy-3-prop-2-ynyl-1,3-benzothiazol-2-ylidene)acetamide
CAS 868378-07-8C21H15N3O4S
(Z)-2-(1,3-Dioxoisoindolin-2-yl)-N-(6-methoxy-3-(prop-2-yn-1-yl)benzo[d]thiazol-2(3H)-ylidene)acetamide chemical structure, C21H15N3O4S, CAS 941871-81-4
(Z)-2-(1,3-Dioxoisoindolin-2-yl)-N-(6-methoxy-3-(prop-2-yn-1-yl)benzo[d]thiazol-2(3H)-ylidene)acetamide
CAS 941871-81-4C21H15N3O4S

Frequently asked questions

What is the molar mass of C21H15N3O4S?

The molar mass of C21H15N3O4S is 405.43 g/mol, calculated from standard atomic weights for 21 carbon atoms, 15 hydrogen atoms, 3 nitrogen atoms, 4 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 405.0783 Da.

How many compounds have the formula C21H15N3O4S?

CompoundList lists 33 compounds with the molecular formula C21H15N3O4S, including 4-[(Z)-(6-Benzyl-3,7-dioxo-7H-[1,3]thiazolo[3,2-B][1,2,4]triazin-2(3H)-ylidene)methyl]phenyl acetate, Fluorescein thiosemicarbazide, N-[[4-(Furan-2-carbonylamino)phenyl]carbamothioyl]-1-benzofuran-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 C21H15N3O4S?

C21H15N3O4S 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.