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Molecular formula

C21H18N2O2S2

32 compounds have this formula on CompoundList.

Molar mass
394.51g/mol
Monoisotopic mass
394.0810Da
Atoms
45
Elements
5
Rings plus double bonds
14

The formula C21H18N2O2S2 describes a molecule made of 21 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms, 2 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 × 2163.94%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 184.60%
    1.008 × 18 = 18.144 g/mol
  • N Nitrogen × 27.10%
    14.007 × 2 = 28.014 g/mol
  • O Oxygen × 28.11%
    15.999 × 2 = 31.998 g/mol
  • S Sulfur × 216.25%
    32.06 × 2 = 64.120 g/mol
Look up another formula

Compounds with the formula C21H18N2O2S2

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

Showing 1 to 32 of 32 compounds

4-Methyl-N-[4-(6-methyl-1,3-benzothiazol-2-yl)phenyl]benzenesulfonamide chemical structure, C21H18N2O2S2, CAS 312916-58-8
4-Methyl-N-[4-(6-methyl-1,3-benzothiazol-2-yl)phenyl]benzenesulfonamide
CAS 312916-58-8C21H18N2O2S2
4-Methyl-N-((Z)-5-((E)-2-methyl-3-phenylallylidene)-4-oxo-2-thioxothiazolidin-3-yl)benzamide chemical structure, C21H18N2O2S2, CAS 1164556-53-9
4-Methyl-N-((Z)-5-((E)-2-methyl-3-phenylallylidene)-4-oxo-2-thioxothiazolidin-3-yl)benzamide
CAS 1164556-53-9C21H18N2O2S2
2-Benzylsulfanyl-5-(5-methylfuran-2-yl)-3-prop-2-enylthieno[2,3-d]pyrimidin-4-one chemical structure, C21H18N2O2S2, CAS 727689-92-1
2-Benzylsulfanyl-5-(5-methylfuran-2-yl)-3-prop-2-enylthieno[2,3-d]pyrimidin-4-one
CAS 727689-92-1C21H18N2O2S2
2-Methyl-N-{5-[(E)-2-methyl-3-phenyl-prop-2-en-(Z)-ylidene]-4-oxo-2-thioxo-thiazolidin-3-yl}-benzamide chemical structure, C21H18N2O2S2, CAS 1164557-64-5
2-Methyl-N-{5-[(E)-2-methyl-3-phenyl-prop-2-en-(Z)-ylidene]-4-oxo-2-thioxo-thiazolidin-3-yl}-benzamide
CAS 1164557-64-5C21H18N2O2S2
2-({6-Methyl-2-[(2-oxo-2-phenylethyl)sulfanyl]pyrimidin-4-yl}sulfanyl)-1-phenylethan-1-one chemical structure, C21H18N2O2S2, CAS 351364-13-1
2-({6-Methyl-2-[(2-oxo-2-phenylethyl)sulfanyl]pyrimidin-4-yl}sulfanyl)-1-phenylethan-1-one
CAS 351364-13-1C21H18N2O2S2
(3Z)-3-(3-Ethyl-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene)-1-(4-methylbenzyl)-1,3-dihydro-2H-indol-2-one chemical structure, C21H18N2O2S2, CAS 617694-96-9
(3Z)-3-(3-Ethyl-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene)-1-(4-methylbenzyl)-1,3-dihydro-2H-indol-2-one
CAS 617694-96-9C21H18N2O2S2
(3Z)-3-(3-Benzyl-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene)-1-propyl-1,3-dihydro-2H-indol-2-one chemical structure, C21H18N2O2S2, CAS 331852-12-1
(3Z)-3-(3-Benzyl-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene)-1-propyl-1,3-dihydro-2H-indol-2-one
CAS 331852-12-1C21H18N2O2S2
N-((Z)-5-((E)-2-Methyl-3-phenylallylidene)-4-oxo-2-thioxothiazolidin-3-yl)-2-phenylacetamide chemical structure, C21H18N2O2S2, CAS 328030-06-4
N-((Z)-5-((E)-2-Methyl-3-phenylallylidene)-4-oxo-2-thioxothiazolidin-3-yl)-2-phenylacetamide
CAS 328030-06-4C21H18N2O2S2
2-((2-Oxo-2-phenylethyl)thio)-3-(p-tolyl)-6,7-dihydrothieno[3,2-d]pyrimidin-4(3H)-one chemical structure, C21H18N2O2S2, CAS 686771-89-1
2-((2-Oxo-2-phenylethyl)thio)-3-(p-tolyl)-6,7-dihydrothieno[3,2-d]pyrimidin-4(3H)-one
CAS 686771-89-1C21H18N2O2S2
N-(3-(Benzo[d]thiazol-2-yl)phenyl)-2,5-dimethylbenzenesulfonamide chemical structure, C21H18N2O2S2, CAS 695172-77-1
N-(3-(Benzo[d]thiazol-2-yl)phenyl)-2,5-dimethylbenzenesulfonamide
CAS 695172-77-1C21H18N2O2S2
4-Benzyl-3-(benzylsulfanyl)-4H-1lambda6,2,4-benzothiadiazine-1,1-dione chemical structure, C21H18N2O2S2, CAS 892363-04-1
4-Benzyl-3-(benzylsulfanyl)-4H-1lambda6,2,4-benzothiadiazine-1,1-dione
CAS 892363-04-1C21H18N2O2S2
2-[(6-Ethoxy-1,3-benzothiazol-2-yl)sulfanyl]-N-naphthalen-2-ylacetamide chemical structure, C21H18N2O2S2, CAS 381698-87-9
2-[(6-Ethoxy-1,3-benzothiazol-2-yl)sulfanyl]-N-naphthalen-2-ylacetamide
CAS 381698-87-9C21H18N2O2S2
N-(3-(Benzo[d]thiazol-2-yl)-4,5-dimethylthiophen-2-yl)-2-methoxybenzamide chemical structure, C21H18N2O2S2, CAS 886960-07-2
N-(3-(Benzo[d]thiazol-2-yl)-4,5-dimethylthiophen-2-yl)-2-methoxybenzamide
CAS 886960-07-2C21H18N2O2S2
1-(Indolin-1-yl)-2-(2-((2-oxo-2-phenylethyl)thio)thiazol-4-yl)ethanone chemical structure, C21H18N2O2S2, CAS 946241-52-7
1-(Indolin-1-yl)-2-(2-((2-oxo-2-phenylethyl)thio)thiazol-4-yl)ethanone
CAS 946241-52-7C21H18N2O2S2
N-(Benzo[d]thiazol-2-yl)-2-(benzylthio)-N-(furan-2-ylmethyl)acetamide chemical structure, C21H18N2O2S2, CAS 922487-71-6
N-(Benzo[d]thiazol-2-yl)-2-(benzylthio)-N-(furan-2-ylmethyl)acetamide
CAS 922487-71-6C21H18N2O2S2
6-Methyl-2-phenacylsulfanyl-3-phenyl-6,7-dihydrothieno[3,2-d]pyrimidin-4-one chemical structure, C21H18N2O2S2, CAS 905688-70-2
6-Methyl-2-phenacylsulfanyl-3-phenyl-6,7-dihydrothieno[3,2-d]pyrimidin-4-one
CAS 905688-70-2C21H18N2O2S2
3-((Z)-4-Oxo-5-((E)-3-phenylallylidene)-2-thioxothiazolidin-3-yl)-N-phenylpropanamide chemical structure, C21H18N2O2S2, CAS 682766-09-2
3-((Z)-4-Oxo-5-((E)-3-phenylallylidene)-2-thioxothiazolidin-3-yl)-N-phenylpropanamide
CAS 682766-09-2C21H18N2O2S2
N-[4-(6-Methyl-1,3-benzothiazol-2-yl)phenyl]-1-phenylmethanesulfonamide chemical structure, C21H18N2O2S2, CAS 349613-06-5
N-[4-(6-Methyl-1,3-benzothiazol-2-yl)phenyl]-1-phenylmethanesulfonamide
CAS 349613-06-5C21H18N2O2S2
(3Z)-1-Butyl-3-(4-oxo-3-phenyl-2-thioxo-1,3-thiazolidin-5-ylidene)-1,3-dihydro-2H-indol-2-one chemical structure, C21H18N2O2S2, CAS 306279-70-9
(3Z)-1-Butyl-3-(4-oxo-3-phenyl-2-thioxo-1,3-thiazolidin-5-ylidene)-1,3-dihydro-2H-indol-2-one
CAS 306279-70-9C21H18N2O2S2
N-(3-(Benzo[d]thiazol-2-yl)-4,5-dimethylthiophen-2-yl)-4-methoxybenzamide chemical structure, C21H18N2O2S2, CAS 886958-92-5
N-(3-(Benzo[d]thiazol-2-yl)-4,5-dimethylthiophen-2-yl)-4-methoxybenzamide
CAS 886958-92-5C21H18N2O2S2
N-(3-(Benzo[d]thiazol-2-yl)-4,5-dimethylthiophen-2-yl)-2-phenoxyacetamide chemical structure, C21H18N2O2S2, CAS 886960-51-6
N-(3-(Benzo[d]thiazol-2-yl)-4,5-dimethylthiophen-2-yl)-2-phenoxyacetamide
CAS 886960-51-6C21H18N2O2S2
N-(3-(Benzo[d]thiazol-2-yl)thiophen-2-yl)-2-(4-methoxy-3-methylphenyl)acetamide chemical structure, C21H18N2O2S2, CAS 955807-98-4
N-(3-(Benzo[d]thiazol-2-yl)thiophen-2-yl)-2-(4-methoxy-3-methylphenyl)acetamide
CAS 955807-98-4C21H18N2O2S2
N-(Benzo[d]thiazol-2-yl)-N-(furan-2-ylmethyl)-2-(4-(methylthio)phenyl)acetamide chemical structure, C21H18N2O2S2, CAS 922396-78-9
N-(Benzo[d]thiazol-2-yl)-N-(furan-2-ylmethyl)-2-(4-(methylthio)phenyl)acetamide
CAS 922396-78-9C21H18N2O2S2
3-Benzyl-2-phenacylsulfanyl-6,7-dihydrothieno[3,2-d]pyrimidin-4-one chemical structure, C21H18N2O2S2, CAS 877619-05-1
3-Benzyl-2-phenacylsulfanyl-6,7-dihydrothieno[3,2-d]pyrimidin-4-one
CAS 877619-05-1C21H18N2O2S2

Frequently asked questions

What is the molar mass of C21H18N2O2S2?

The molar mass of C21H18N2O2S2 is 394.51 g/mol, calculated from standard atomic weights for 21 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms, 2 oxygen atoms and 2 sulfur atoms. The monoisotopic mass is 394.0810 Da.

How many compounds have the formula C21H18N2O2S2?

CompoundList lists 32 compounds with the molecular formula C21H18N2O2S2, including 4-Methyl-N-[4-(6-methyl-1,3-benzothiazol-2-yl)phenyl]benzenesulfonamide, 4-Methyl-N-((Z)-5-((E)-2-methyl-3-phenylallylidene)-4-oxo-2-thioxothiazolidin-3-yl)benzamide, 2-Benzylsulfanyl-5-(5-methylfuran-2-yl)-3-prop-2-enylthieno[2,3-d]pyrimidin-4-one. 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 C21H18N2O2S2?

C21H18N2O2S2 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.