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Molecular formula

C21H21NO2S

38 compounds have this formula on CompoundList.

Molar mass
351.46g/mol
Monoisotopic mass
359.1795Da
Atoms
46
Elements
5
Rings plus double bonds
12

The formula C21H21NO2S describes a molecule made of 21 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom, 2 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 × 2171.77%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 216.02%
    1.008 × 21 = 21.168 g/mol
  • N Nitrogen × 13.99%
    14.007 × 1 = 14.007 g/mol
  • O Oxygen × 29.10%
    15.999 × 2 = 31.998 g/mol
  • S Sulfur × 19.12%
    32.06 × 1 = 32.060 g/mol
Look up another formula

Compounds with the formula C21H21NO2S

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

Showing 1 to 38 of 38 compounds

Tazarotene chemical structure, C21H21NO2S, CAS 118292-40-3
Tazarotene
CAS 118292-40-3C21H21NO2S
N-2-Biphenylyl-2,4,6-trimethylbenzenesulfonamide chemical structure, C21H21NO2S, CAS 349404-58-6
N-2-Biphenylyl-2,4,6-trimethylbenzenesulfonamide
CAS 349404-58-6C21H21NO2S
N-(1,2-Dihydro-5-acenaphthylenyl)-2,4,6-trimethylbenzenesulfonamide chemical structure, C21H21NO2S, CAS 701228-89-9
N-(1,2-Dihydro-5-acenaphthylenyl)-2,4,6-trimethylbenzenesulfonamide
CAS 701228-89-9C21H21NO2S
N,N-Dibenzyl-4-methylbenzene-1-sulfonamide chemical structure, C21H21NO2S, CAS 5116-35-8
N,N-Dibenzyl-4-methylbenzene-1-sulfonamide
CAS 5116-35-8C21H21NO2S
N-[2-Hydroxy-2-(thiophen-2-yl)ethyl]-3,3-diphenylpropanamide chemical structure, C21H21NO2S, CAS 1351599-04-6
N-[2-Hydroxy-2-(thiophen-2-yl)ethyl]-3,3-diphenylpropanamide
CAS 1351599-04-6C21H21NO2S
4'-Methyl-N-phenethyl-[1,1'-biphenyl]-4-sulfonamide chemical structure, C21H21NO2S, CAS 670271-71-3
4'-Methyl-N-phenethyl-[1,1'-biphenyl]-4-sulfonamide
CAS 670271-71-3C21H21NO2S
1-(3,4-Dimethylphenyl)-2-(7-methoxy-4-methylquinolin-2-yl)sulfanylethanone chemical structure, C21H21NO2S, CAS 690646-54-9
1-(3,4-Dimethylphenyl)-2-(7-methoxy-4-methylquinolin-2-yl)sulfanylethanone
CAS 690646-54-9C21H21NO2S
N,N-Dibenzyl-1-phenylmethanesulfonamide chemical structure, C21H21NO2S, CAS 346727-34-2
N,N-Dibenzyl-1-phenylmethanesulfonamide
CAS 346727-34-2C21H21NO2S
Ethyl 2-methyl-4-phenyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-b]pyridine-3-carboxylate chemical structure, C21H21NO2S, CAS 223423-36-7
Ethyl 2-methyl-4-phenyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-b]pyridine-3-carboxylate
CAS 223423-36-7C21H21NO2S
11-(2-Methoxyphenyl)-3-methyl-3,4,5,11-tetrahydrodibenzo[b,e][1,4]thiazepin-1(2H)-one chemical structure, C21H21NO2S, CAS 726200-45-9
11-(2-Methoxyphenyl)-3-methyl-3,4,5,11-tetrahydrodibenzo[b,e][1,4]thiazepin-1(2H)-one
CAS 726200-45-9C21H21NO2S
N-((4-(Thiophen-2-yl)tetrahydro-2H-pyran-4-yl)methyl)-2-naphthamide chemical structure, C21H21NO2S, CAS 1203171-95-2
N-((4-(Thiophen-2-yl)tetrahydro-2H-pyran-4-yl)methyl)-2-naphthamide
CAS 1203171-95-2C21H21NO2S
N-(Oxan-4-yl)-N-[(thiophen-2-yl)methyl]naphthalene-1-carboxamide chemical structure, C21H21NO2S, CAS 1797077-42-9
N-(Oxan-4-yl)-N-[(thiophen-2-yl)methyl]naphthalene-1-carboxamide
CAS 1797077-42-9C21H21NO2S
N-(2-Hydroxy-2-(naphthalen-1-yl)ethyl)-3-(phenylthio)propanamide chemical structure, C21H21NO2S, CAS 1351586-70-3
N-(2-Hydroxy-2-(naphthalen-1-yl)ethyl)-3-(phenylthio)propanamide
CAS 1351586-70-3C21H21NO2S
Tazarotene-d8 chemical structure, C21H21NO2S, CAS 1246815-76-8
Tazarotene-d8
CAS 1246815-76-8C21H21NO2S
N-(2-{[1,1'-Biphenyl]-4-yl}-2-hydroxypropyl)-2-(thiophen-2-yl)acetamide chemical structure, C21H21NO2S, CAS 1396799-17-9
N-(2-{[1,1'-Biphenyl]-4-yl}-2-hydroxypropyl)-2-(thiophen-2-yl)acetamide
CAS 1396799-17-9C21H21NO2S
N-(4-(Furan-3-yl)benzyl)-1-(thiophen-2-yl)cyclopentanecarboxamide chemical structure, C21H21NO2S, CAS 2034379-19-4
N-(4-(Furan-3-yl)benzyl)-1-(thiophen-2-yl)cyclopentanecarboxamide
CAS 2034379-19-4C21H21NO2S
N-(4-Phenylphenyl)-4-propan-2-ylbenzenesulfonamide chemical structure, C21H21NO2S, CAS 694465-91-3
N-(4-Phenylphenyl)-4-propan-2-ylbenzenesulfonamide
CAS 694465-91-3C21H21NO2S
N-[2-Hydroxy-2-(3-methylthiophen-2-yl)ethyl]-2,2-diphenylacetamide chemical structure, C21H21NO2S, CAS 1351635-45-4
N-[2-Hydroxy-2-(3-methylthiophen-2-yl)ethyl]-2,2-diphenylacetamide
CAS 1351635-45-4C21H21NO2S
2-([1,1'-Biphenyl]-4-yl)-N-(2-methoxy-2-(thiophen-3-yl)ethyl)acetamide chemical structure, C21H21NO2S, CAS 1448076-40-1
2-([1,1'-Biphenyl]-4-yl)-N-(2-methoxy-2-(thiophen-3-yl)ethyl)acetamide
CAS 1448076-40-1C21H21NO2S
2-(4-Ethoxyphenyl)-N-(2-(thiophen-3-yl)benzyl)acetamide chemical structure, C21H21NO2S, CAS 1797713-36-0
2-(4-Ethoxyphenyl)-N-(2-(thiophen-3-yl)benzyl)acetamide
CAS 1797713-36-0C21H21NO2S
N-((5-(Hydroxy(phenyl)methyl)thiophen-2-yl)methyl)-2,5-dimethylbenzamide chemical structure, C21H21NO2S, CAS 1797142-89-2
N-((5-(Hydroxy(phenyl)methyl)thiophen-2-yl)methyl)-2,5-dimethylbenzamide
CAS 1797142-89-2C21H21NO2S
N-(2-{[1,1'-Biphenyl]-4-yl}-2-hydroxypropyl)-2-(thiophen-3-yl)acetamide chemical structure, C21H21NO2S, CAS 1795299-17-0
N-(2-{[1,1'-Biphenyl]-4-yl}-2-hydroxypropyl)-2-(thiophen-3-yl)acetamide
CAS 1795299-17-0C21H21NO2S
Benzofuran-2-yl(7-(o-tolyl)-1,4-thiazepan-4-yl)methanone chemical structure, C21H21NO2S, CAS 1704521-79-8
Benzofuran-2-yl(7-(o-tolyl)-1,4-thiazepan-4-yl)methanone
CAS 1704521-79-8C21H21NO2S
2-(Naphthalen-1-yl)-N-(4-(thiophen-2-yl)tetrahydro-2H-pyran-4-yl)acetamide chemical structure, C21H21NO2S, CAS 2034507-68-9
2-(Naphthalen-1-yl)-N-(4-(thiophen-2-yl)tetrahydro-2H-pyran-4-yl)acetamide
CAS 2034507-68-9C21H21NO2S

Frequently asked questions

What is the molar mass of C21H21NO2S?

The molar mass of C21H21NO2S is 351.46 g/mol, calculated from standard atomic weights for 21 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom, 2 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 359.1795 Da.

How many compounds have the formula C21H21NO2S?

CompoundList lists 38 compounds with the molecular formula C21H21NO2S, including Tazarotene, N-2-Biphenylyl-2,4,6-trimethylbenzenesulfonamide, N-(1,2-Dihydro-5-acenaphthylenyl)-2,4,6-trimethylbenzenesulfonamide. 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 C21H21NO2S?

C21H21NO2S has a degree of unsaturation of 12. 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.