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Molecular formula

C21H16N2O4S2

21 compounds have this formula on CompoundList.

Molar mass
424.49g/mol
Monoisotopic mass
424.0551Da
Atoms
45
Elements
5
Rings plus double bonds
15

The formula C21H16N2O4S2 describes a molecule made of 21 carbon atoms, 16 hydrogen atoms, 2 nitrogen atoms, 4 oxygen atoms and 2 sulfur 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 × 2159.42%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 163.80%
    1.008 × 16 = 16.128 g/mol
  • N Nitrogen × 26.60%
    14.007 × 2 = 28.014 g/mol
  • O Oxygen × 415.08%
    15.999 × 4 = 63.996 g/mol
  • S Sulfur × 215.11%
    32.06 × 2 = 64.120 g/mol
Look up another formula

Compounds with the formula C21H16N2O4S2

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

Showing 1 to 21 of 21 compounds

2-(1,3-Benzodioxol-5-ylmethylthio)-5-(2-furanyl)-3-prop-2-enyl-4-thieno[2,3-d]pyrimidinone chemical structure, C21H16N2O4S2, CAS 690642-81-0
2-(1,3-Benzodioxol-5-ylmethylthio)-5-(2-furanyl)-3-prop-2-enyl-4-thieno[2,3-d]pyrimidinone
CAS 690642-81-0C21H16N2O4S2
8-(4-Methoxyphenyl)-6-phenyl-3,4a,7a,8-tetrahydropyrrolo[3',4':5,6]thiopyrano[2,3-d][1,3]thiazole-2,5,7(6H)-trione chemical structure, C21H16N2O4S2, CAS 1005081-98-0
8-(4-Methoxyphenyl)-6-phenyl-3,4a,7a,8-tetrahydropyrrolo[3',4':5,6]thiopyrano[2,3-d][1,3]thiazole-2,5,7(6H)-trione
CAS 1005081-98-0C21H16N2O4S2
N-(6-(Methylsulfonyl)benzo[d]thiazol-2-yl)-2-phenoxybenzamide chemical structure, C21H16N2O4S2, CAS 313469-77-1
N-(6-(Methylsulfonyl)benzo[d]thiazol-2-yl)-2-phenoxybenzamide
CAS 313469-77-1C21H16N2O4S2
3-Thiazolidineacetic acid, 4-oxo-5-(2-(3-(phenylmethyl)-2(3H)-benzoxazolylidene)ethylidene)-2-thioxo- chemical structure, C21H16N2O4S2, CAS 63815-90-7
3-Thiazolidineacetic acid, 4-oxo-5-(2-(3-(phenylmethyl)-2(3H)-benzoxazolylidene)ethylidene)-2-thioxo-
CAS 63815-90-7C21H16N2O4S2
2-[(5Z)-5-[1-[(4-Methylphenyl)methyl]-2-oxoindol-3-ylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]acetic acid chemical structure, C21H16N2O4S2, CAS 380540-98-7
2-[(5Z)-5-[1-[(4-Methylphenyl)methyl]-2-oxoindol-3-ylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]acetic acid
CAS 380540-98-7C21H16N2O4S2
3-{4-Oxo-5-[2-oxo-1-benzylbenzo[d]azolidin-3-ylidene]-2-thioxo-1,3-thiazolidin-3-yl}propanoic acid chemical structure, C21H16N2O4S2, CAS 1355339-16-0
3-{4-Oxo-5-[2-oxo-1-benzylbenzo[d]azolidin-3-ylidene]-2-thioxo-1,3-thiazolidin-3-yl}propanoic acid
CAS 1355339-16-0C21H16N2O4S2
N-(3-Methoxyphenyl)-2-{[4-(2-oxo-2H-chromen-3-yl)-1,3-thiazol-2-yl]sulfanyl}acetamide chemical structure, C21H16N2O4S2, CAS 1260633-75-7
N-(3-Methoxyphenyl)-2-{[4-(2-oxo-2H-chromen-3-yl)-1,3-thiazol-2-yl]sulfanyl}acetamide
CAS 1260633-75-7C21H16N2O4S2
(Z)-N-(3-((2-Methoxyphenyl)amino)-4-oxonaphthalen-1(4H)-ylidene)thiophene-2-sulfonamide chemical structure, C21H16N2O4S2, CAS 518302-07-3
(Z)-N-(3-((2-Methoxyphenyl)amino)-4-oxonaphthalen-1(4H)-ylidene)thiophene-2-sulfonamide
CAS 518302-07-3C21H16N2O4S2
N-(4-(Benzo[d]thiazol-2-yl)-3-hydroxyphenyl)-3-(methylsulfonyl)benzamide chemical structure, C21H16N2O4S2, CAS 896284-29-0
N-(4-(Benzo[d]thiazol-2-yl)-3-hydroxyphenyl)-3-(methylsulfonyl)benzamide
CAS 896284-29-0C21H16N2O4S2
N-(3-(Benzo[d]thiazol-2-yl)-4-hydroxyphenyl)-2-(methylsulfonyl)benzamide chemical structure, C21H16N2O4S2, CAS 896361-31-2
N-(3-(Benzo[d]thiazol-2-yl)-4-hydroxyphenyl)-2-(methylsulfonyl)benzamide
CAS 896361-31-2C21H16N2O4S2
N-(3-(Benzo[d]thiazol-2-yl)-4-hydroxyphenyl)-4-(methylsulfonyl)benzamide chemical structure, C21H16N2O4S2, CAS 896337-37-4
N-(3-(Benzo[d]thiazol-2-yl)-4-hydroxyphenyl)-4-(methylsulfonyl)benzamide
CAS 896337-37-4C21H16N2O4S2
N-(4-(Benzo[d]thiazol-2-yl)-3-hydroxyphenyl)-2-(methylsulfonyl)benzamide chemical structure, C21H16N2O4S2, CAS 896361-70-9
N-(4-(Benzo[d]thiazol-2-yl)-3-hydroxyphenyl)-2-(methylsulfonyl)benzamide
CAS 896361-70-9C21H16N2O4S2
2-{[5-(2,3-Dihydro-1,4-benzodioxin-2-yl)-1,3,4-oxadiazol-2-yl]sulfanyl}-1-(3-methyl-1-benzothiophen-2-yl)ethan-1-one chemical structure, C21H16N2O4S2, CAS 920925-24-2
2-{[5-(2,3-Dihydro-1,4-benzodioxin-2-yl)-1,3,4-oxadiazol-2-yl]sulfanyl}-1-(3-methyl-1-benzothiophen-2-yl)ethan-1-one
CAS 920925-24-2C21H16N2O4S2
N-(3-(Benzo[d]thiazol-2-yl)-4-hydroxyphenyl)-3-(methylsulfonyl)benzamide chemical structure, C21H16N2O4S2, CAS 896283-78-6
N-(3-(Benzo[d]thiazol-2-yl)-4-hydroxyphenyl)-3-(methylsulfonyl)benzamide
CAS 896283-78-6C21H16N2O4S2
N-(4-(Benzo[d]thiazol-2-yl)-3-hydroxyphenyl)-4-(methylsulfonyl)benzamide chemical structure, C21H16N2O4S2, CAS 896337-86-3
N-(4-(Benzo[d]thiazol-2-yl)-3-hydroxyphenyl)-4-(methylsulfonyl)benzamide
CAS 896337-86-3C21H16N2O4S2
{(3Z)-3-[3-(3,4-Dimethylphenyl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]-2-oxo-2,3-dihydro-1H-indol-1-yl}acetic acid chemical structure, C21H16N2O4S2, CAS 307342-82-1
{(3Z)-3-[3-(3,4-Dimethylphenyl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]-2-oxo-2,3-dihydro-1H-indol-1-yl}acetic acid
CAS 307342-82-1C21H16N2O4S2
N-(3-(Benzo[d]thiazol-2-yl)-4-hydroxyphenyl)-2-(phenylsulfonyl)acetamide chemical structure, C21H16N2O4S2, CAS 898427-49-1
N-(3-(Benzo[d]thiazol-2-yl)-4-hydroxyphenyl)-2-(phenylsulfonyl)acetamide
CAS 898427-49-1C21H16N2O4S2
N-(4-(Benzo[d]thiazol-2-yl)-3-hydroxyphenyl)-2-(phenylsulfonyl)acetamide chemical structure, C21H16N2O4S2, CAS 898405-82-8
N-(4-(Benzo[d]thiazol-2-yl)-3-hydroxyphenyl)-2-(phenylsulfonyl)acetamide
CAS 898405-82-8C21H16N2O4S2
5-[2-(5-Methoxy-1H-indol-3-yl)-2-oxo-ethylidene]-3-(4-methoxy-phenyl)-2-thioxo-thiazolidin-4-one chemical structure, C21H16N2O4S2, CAS 1380572-38-2
5-[2-(5-Methoxy-1H-indol-3-yl)-2-oxo-ethylidene]-3-(4-methoxy-phenyl)-2-thioxo-thiazolidin-4-one
CAS 1380572-38-2C21H16N2O4S2
Phenyl (6-(3-(methylsulfonyl)phenyl)benzo[d]thiazol-2-yl)carbamate chemical structure, C21H16N2O4S2, CAS 1244059-85-5
Phenyl (6-(3-(methylsulfonyl)phenyl)benzo[d]thiazol-2-yl)carbamate
CAS 1244059-85-5C21H16N2O4S2
N-(4-(4-Methoxyphenyl)thiazol-2-yl)-2,3-dihydrothieno[2',3':4,5]benzo[1,2-b][1,4]dioxine-7-carboxamide chemical structure, C21H16N2O4S2, CAS 1070794-71-6
N-(4-(4-Methoxyphenyl)thiazol-2-yl)-2,3-dihydrothieno[2',3':4,5]benzo[1,2-b][1,4]dioxine-7-carboxamide
CAS 1070794-71-6C21H16N2O4S2

Frequently asked questions

What is the molar mass of C21H16N2O4S2?

The molar mass of C21H16N2O4S2 is 424.49 g/mol, calculated from standard atomic weights for 21 carbon atoms, 16 hydrogen atoms, 2 nitrogen atoms, 4 oxygen atoms and 2 sulfur atoms. The monoisotopic mass is 424.0551 Da.

How many compounds have the formula C21H16N2O4S2?

CompoundList lists 21 compounds with the molecular formula C21H16N2O4S2, including 2-(1,3-Benzodioxol-5-ylmethylthio)-5-(2-furanyl)-3-prop-2-enyl-4-thieno[2,3-d]pyrimidinone, 8-(4-Methoxyphenyl)-6-phenyl-3,4a,7a,8-tetrahydropyrrolo[3',4':5,6]thiopyrano[2,3-d][1,3]thiazole-2,5,7(6H)-trione, N-(6-(Methylsulfonyl)benzo[d]thiazol-2-yl)-2-phenoxybenzamide. 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 C21H16N2O4S2?

C21H16N2O4S2 has a degree of unsaturation of 15. 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.