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Molecular formula

C21H17NO3S

31 compounds have this formula on CompoundList.

Molar mass
363.43g/mol
Monoisotopic mass
363.0929Da
Atoms
43
Elements
5
Rings plus double bonds
14

The formula C21H17NO3S describes a molecule made of 21 carbon atoms, 17 hydrogen atoms, 1 nitrogen atom, 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 × 2169.40%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 174.72%
    1.008 × 17 = 17.136 g/mol
  • N Nitrogen × 13.85%
    14.007 × 1 = 14.007 g/mol
  • O Oxygen × 313.21%
    15.999 × 3 = 47.997 g/mol
  • S Sulfur × 18.82%
    32.06 × 1 = 32.060 g/mol
Look up another formula

Compounds with the formula C21H17NO3S

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

Showing 1 to 31 of 31 compounds

7-Acetoxy-6,7-dihydro-6-(4-methoxyphenyl)pyrrolo(2,1-d)(1,5)benzothiazepine chemical structure, C21H17NO3S, CAS 131403-76-4
7-Acetoxy-6,7-dihydro-6-(4-methoxyphenyl)pyrrolo(2,1-d)(1,5)benzothiazepine
CAS 131403-76-4C21H17NO3S
4-[2-(5-Methyl-2-phenyl-1,3-oxazol-4-yl)ethoxy]-1-benzothiophene-7-carbaldehyde chemical structure, C21H17NO3S, CAS 475480-88-7
4-[2-(5-Methyl-2-phenyl-1,3-oxazol-4-yl)ethoxy]-1-benzothiophene-7-carbaldehyde
CAS 475480-88-7C21H17NO3S
7H-Dibenz[b,d]azepin-7-one, 5,6-dihydro-5-(p-tolylsulfonyl)- chemical structure, C21H17NO3S, CAS 24127-35-3
7H-Dibenz[b,d]azepin-7-one, 5,6-dihydro-5-(p-tolylsulfonyl)-
CAS 24127-35-3C21H17NO3S
N-[4-[(E)-3-(4-Methylsulfanylphenyl)prop-2-enoyl]phenyl]furan-2-carboxamide chemical structure, C21H17NO3S, CAS 332114-88-2
N-[4-[(E)-3-(4-Methylsulfanylphenyl)prop-2-enoyl]phenyl]furan-2-carboxamide
CAS 332114-88-2C21H17NO3S
N-Dibenzofuran-3-yl-2-methoxy-4-methylsulfanylbenzamide chemical structure, C21H17NO3S, CAS 339314-33-9
N-Dibenzofuran-3-yl-2-methoxy-4-methylsulfanylbenzamide
CAS 339314-33-9C21H17NO3S
8-Benzo[b]thiophen-2-yl-2-morpholin-4-yl-chromen-4-one chemical structure, C21H17NO3S, CAS 503468-90-4
8-Benzo[b]thiophen-2-yl-2-morpholin-4-yl-chromen-4-one
CAS 503468-90-4C21H17NO3S
2-(Furan-2-yl)-5-(2-oxo-2-phenylethyl)-2,3-dihydrobenzo[b][1,4]thiazepin-4(5H)-one chemical structure, C21H17NO3S, CAS 863005-37-2
2-(Furan-2-yl)-5-(2-oxo-2-phenylethyl)-2,3-dihydrobenzo[b][1,4]thiazepin-4(5H)-one
CAS 863005-37-2C21H17NO3S
Methyl 5-phenyl-3-[(2E)-3-phenylprop-2-enamido]thiophene-2-carboxylate chemical structure, C21H17NO3S, CAS 1321906-73-3
Methyl 5-phenyl-3-[(2E)-3-phenylprop-2-enamido]thiophene-2-carboxylate
CAS 1321906-73-3C21H17NO3S
1-Benzyl-3-hydroxy-3-(2-oxo-2-thiophen-2-ylethyl)indol-2-one chemical structure, C21H17NO3S, CAS 83393-68-4
1-Benzyl-3-hydroxy-3-(2-oxo-2-thiophen-2-ylethyl)indol-2-one
CAS 83393-68-4C21H17NO3S
4-(Benzyloxy)-1-(phenylsulfonyl)-1H-indole chemical structure, C21H17NO3S, CAS 79315-62-1
4-(Benzyloxy)-1-(phenylsulfonyl)-1H-indole
CAS 79315-62-1C21H17NO3S
N-(2-Methoxy-dibenzofuran-3-yl)-2-methylsulfanyl-benzamide chemical structure, C21H17NO3S, CAS 447409-24-7
N-(2-Methoxy-dibenzofuran-3-yl)-2-methylsulfanyl-benzamide
CAS 447409-24-7C21H17NO3S
5-(4-Ethoxyphenyl)-2-(2-methylphenyl)thieno[2,3-d][1,3]oxazin-4-one chemical structure, C21H17NO3S, CAS 443320-67-0
5-(4-Ethoxyphenyl)-2-(2-methylphenyl)thieno[2,3-d][1,3]oxazin-4-one
CAS 443320-67-0C21H17NO3S
8-Ethoxy-3-[4-(4-methylphenyl)-1,3-thiazol-2-yl]chromen-2-one chemical structure, C21H17NO3S, CAS 4626-16-8
8-Ethoxy-3-[4-(4-methylphenyl)-1,3-thiazol-2-yl]chromen-2-one
CAS 4626-16-8C21H17NO3S
4-Methyl-6-phenyl-3-(phenylsulfonyl)-1-(2-propynyl)-2(1H)-pyridinone chemical structure, C21H17NO3S, CAS 477873-05-5
4-Methyl-6-phenyl-3-(phenylsulfonyl)-1-(2-propynyl)-2(1H)-pyridinone
CAS 477873-05-5C21H17NO3S
2-(4-Methoxyphenyl)sulfonyl-4-methylbenzo[h]quinoline chemical structure, C21H17NO3S, CAS 81009-00-9
2-(4-Methoxyphenyl)sulfonyl-4-methylbenzo[h]quinoline
CAS 81009-00-9C21H17NO3S
5-(Phenylmethoxy)-1-phenylsulfonylindole chemical structure, C21H17NO3S, CAS 170147-24-7
5-(Phenylmethoxy)-1-phenylsulfonylindole
CAS 170147-24-7C21H17NO3S
2-Oxo-1,2-diphenylethyl 2-(methylsulfanyl)pyridine-3-carboxylate chemical structure, C21H17NO3S, CAS 453553-08-7
2-Oxo-1,2-diphenylethyl 2-(methylsulfanyl)pyridine-3-carboxylate
CAS 453553-08-7C21H17NO3S
3-(4-Methoxyphenyl)-1-(phenylsulfonyl)-1H-indole chemical structure, C21H17NO3S, CAS 648409-59-0
3-(4-Methoxyphenyl)-1-(phenylsulfonyl)-1H-indole
CAS 648409-59-0C21H17NO3S
N-(1-(Benzo[b]thiophen-3-yl)propan-2-yl)-4-oxo-4H-chromene-2-carboxamide chemical structure, C21H17NO3S, CAS 2034469-42-4
N-(1-(Benzo[b]thiophen-3-yl)propan-2-yl)-4-oxo-4H-chromene-2-carboxamide
CAS 2034469-42-4C21H17NO3S
(5E)-5-[[2-[(4-Methylphenyl)methoxy]phenyl]methylidene]-3-prop-2-ynyl-1,3-thiazolidine-2,4-dione chemical structure, C21H17NO3S, CAS 432016-03-0
(5E)-5-[[2-[(4-Methylphenyl)methoxy]phenyl]methylidene]-3-prop-2-ynyl-1,3-thiazolidine-2,4-dione
CAS 432016-03-0C21H17NO3S
N-[1-(Benzenesulfonyl)-2-phenylethenyl]benzamide chemical structure, C21H17NO3S, CAS 202132-26-1
N-[1-(Benzenesulfonyl)-2-phenylethenyl]benzamide
CAS 202132-26-1C21H17NO3S
N-[2-(3-Phenylacryloyl)phenyl]benzenesulfonamide chemical structure, C21H17NO3S, CAS 124856-90-2
N-[2-(3-Phenylacryloyl)phenyl]benzenesulfonamide
CAS 124856-90-2C21H17NO3S
N-{2-[4-(Furan-2-yl)phenyl]-2-hydroxyethyl}-1-benzothiophene-2-carboxamide chemical structure, C21H17NO3S, CAS 2097932-22-2
N-{2-[4-(Furan-2-yl)phenyl]-2-hydroxyethyl}-1-benzothiophene-2-carboxamide
CAS 2097932-22-2C21H17NO3S
9H-Thioxanthen-9-one, 3-[4-(dimethylamino)phenyl]-, 10,10-dioxide chemical structure, C21H17NO3S, CAS 890045-46-2
9H-Thioxanthen-9-one, 3-[4-(dimethylamino)phenyl]-, 10,10-dioxide
CAS 890045-46-2C21H17NO3S

Frequently asked questions

What is the molar mass of C21H17NO3S?

The molar mass of C21H17NO3S is 363.43 g/mol, calculated from standard atomic weights for 21 carbon atoms, 17 hydrogen atoms, 1 nitrogen atom, 3 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 363.0929 Da.

How many compounds have the formula C21H17NO3S?

CompoundList lists 31 compounds with the molecular formula C21H17NO3S, including 7-Acetoxy-6,7-dihydro-6-(4-methoxyphenyl)pyrrolo(2,1-d)(1,5)benzothiazepine, 4-[2-(5-Methyl-2-phenyl-1,3-oxazol-4-yl)ethoxy]-1-benzothiophene-7-carbaldehyde, 7H-Dibenz[b,d]azepin-7-one, 5,6-dihydro-5-(p-tolylsulfonyl)-. 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 C21H17NO3S?

C21H17NO3S 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.