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Molecular formula

C18H17NO3S

131 compounds have this formula on CompoundList.

Molar mass
327.40g/mol
Monoisotopic mass
327.0929Da
Atoms
40
Elements
5
Rings plus double bonds
11

The formula C18H17NO3S describes a molecule made of 18 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 × 1866.04%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 175.23%
    1.008 × 17 = 17.136 g/mol
  • N Nitrogen × 14.28%
    14.007 × 1 = 14.007 g/mol
  • O Oxygen × 314.66%
    15.999 × 3 = 47.997 g/mol
  • S Sulfur × 19.79%
    32.06 × 1 = 32.060 g/mol
Look up another formula

Compounds with the formula C18H17NO3S

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

Showing 101 to 131 of 131 compounds

N-[3-(4-Methylbenzoyl)-4H,5H,7H-thieno[2,3-c]pyran-2-yl]prop-2-enamide chemical structure, C18H17NO3S, CAS 2305561-39-9
N-[3-(4-Methylbenzoyl)-4H,5H,7H-thieno[2,3-c]pyran-2-yl]prop-2-enamide
CAS 2305561-39-9C18H17NO3S
7-Methoxy-N-{[1-(thiophen-3-yl)cyclopropyl]methyl}-1-benzofuran-2-carboxamide chemical structure, C18H17NO3S, CAS 2415468-26-5
7-Methoxy-N-{[1-(thiophen-3-yl)cyclopropyl]methyl}-1-benzofuran-2-carboxamide
CAS 2415468-26-5C18H17NO3S
N-(2-Methoxyphenyl)-3-phenyl-5,6-dihydro-1,4-oxathiine-2-carboxamide chemical structure, C18H17NO3S, CAS 1010881-75-0
N-(2-Methoxyphenyl)-3-phenyl-5,6-dihydro-1,4-oxathiine-2-carboxamide
CAS 1010881-75-0C18H17NO3S
N-(3-Methoxyphenyl)-3-phenyl-5,6-dihydro-1,4-oxathiine-2-carboxamide chemical structure, C18H17NO3S, CAS 1010876-55-7
N-(3-Methoxyphenyl)-3-phenyl-5,6-dihydro-1,4-oxathiine-2-carboxamide
CAS 1010876-55-7C18H17NO3S
N-(4-Methoxyphenyl)-3-phenyl-5,6-dihydro-1,4-oxathiine-2-carboxamide chemical structure, C18H17NO3S, CAS 1010901-21-9
N-(4-Methoxyphenyl)-3-phenyl-5,6-dihydro-1,4-oxathiine-2-carboxamide
CAS 1010901-21-9C18H17NO3S
8-Quinolinesulfonic acid,2-phenyl-6-propyl- chemical structure, C18H17NO3S, CAS 132850-45-4
8-Quinolinesulfonic acid,2-phenyl-6-propyl-
CAS 132850-45-4C18H17NO3S
N-[(4-Methoxyphenyl)methyl]naphthalene-1-sulfonamide chemical structure, C18H17NO3S, CAS 915797-71-6
N-[(4-Methoxyphenyl)methyl]naphthalene-1-sulfonamide
CAS 915797-71-6C18H17NO3S
2-Methyl-5-[(methylsulfonyl)phenylmethyl]-4-phenyloxazole chemical structure, C18H17NO3S, CAS 1432970-63-2
2-Methyl-5-[(methylsulfonyl)phenylmethyl]-4-phenyloxazole
CAS 1432970-63-2C18H17NO3S
6-(Benzyloxy)-N-methoxy-N-methylbenzo[b]thiophene-2-carboxamide chemical structure, C18H17NO3S, CAS 1841139-15-8
6-(Benzyloxy)-N-methoxy-N-methylbenzo[b]thiophene-2-carboxamide
CAS 1841139-15-8C18H17NO3S
6,7-Dimethoxy-3-[(R)-(4-methylphenyl)sulfinyl]quinoline chemical structure, C18H17NO3S, CAS 850352-74-8
6,7-Dimethoxy-3-[(R)-(4-methylphenyl)sulfinyl]quinoline
CAS 850352-74-8C18H17NO3S
tert-Butyl 2-formyl-10H-phenothiazine-10-carboxylate chemical structure, C18H17NO3S, CAS 1992834-73-7
tert-Butyl 2-formyl-10H-phenothiazine-10-carboxylate
CAS 1992834-73-7C18H17NO3S
Fmoc-(R)-2-aminopropanethioic S-acid chemical structure, C18H17NO3S, CAS 1361143-96-5
Fmoc-(R)-2-aminopropanethioic S-acid
CAS 1361143-96-5C18H17NO3S
5-Oxo-2-phenyl-3-(p-tolylthio)pyrrolidine-3-carboxylic acid chemical structure, C18H17NO3S, CAS 2355281-64-8
5-Oxo-2-phenyl-3-(p-tolylthio)pyrrolidine-3-carboxylic acid
CAS 2355281-64-8C18H17NO3S
6-(Cyclopropylmethoxy)-1-(phenylsulfonyl)-1H-indole chemical structure, C18H17NO3S, CAS 2231234-29-8
6-(Cyclopropylmethoxy)-1-(phenylsulfonyl)-1H-indole
CAS 2231234-29-8C18H17NO3S
3,5-Bis(4-methoxyphenyl)-4-methyl-2(3H)-thiazolone chemical structure, C18H17NO3S, CAS 53503-50-7
3,5-Bis(4-methoxyphenyl)-4-methyl-2(3H)-thiazolone
CAS 53503-50-7C18H17NO3S
4,4-Diphenyl-2-propyl-6-sulfanylidene-1,5,2-dioxazinan-3-one chemical structure, C18H17NO3S, CAS 88051-49-4
4,4-Diphenyl-2-propyl-6-sulfanylidene-1,5,2-dioxazinan-3-one
CAS 88051-49-4C18H17NO3S
Benzyl 2-[2-(methylsulfanyl)-4-oxoazetidin-1-yl]benzoate chemical structure, C18H17NO3S, CAS 90136-87-1
Benzyl 2-[2-(methylsulfanyl)-4-oxoazetidin-1-yl]benzoate
CAS 90136-87-1C18H17NO3S
4-Isothiocyanatophenyl 4-butoxybenzoate chemical structure, C18H17NO3S, CAS 61592-82-3
4-Isothiocyanatophenyl 4-butoxybenzoate
CAS 61592-82-3C18H17NO3S
Ethyl (4S,5S)-4,5-diphenyl-2-sulfanylidene-1,3-oxazolidine-3-carboxylate chemical structure, C18H17NO3S, CAS 61073-70-9
Ethyl (4S,5S)-4,5-diphenyl-2-sulfanylidene-1,3-oxazolidine-3-carboxylate
CAS 61073-70-9C18H17NO3S
Ethyl (4S,5R)-4,5-diphenyl-2-sulfanylidene-1,3-oxazolidine-3-carboxylate chemical structure, C18H17NO3S, CAS 61073-69-6
Ethyl (4S,5R)-4,5-diphenyl-2-sulfanylidene-1,3-oxazolidine-3-carboxylate
CAS 61073-69-6C18H17NO3S
2-[3-(4-Methylbenzene-1-sulfinyl)propyl]-1H-isoindole-1,3(2H)-dione chemical structure, C18H17NO3S, CAS 87943-25-7
2-[3-(4-Methylbenzene-1-sulfinyl)propyl]-1H-isoindole-1,3(2H)-dione
CAS 87943-25-7C18H17NO3S
4-Methyl-3-phenyl-5-tosyl-1,5-dihydro-2H-pyrrol-2-one chemical structure, C18H17NO3S, CAS 374572-46-0
4-Methyl-3-phenyl-5-tosyl-1,5-dihydro-2H-pyrrol-2-one
CAS 374572-46-0C18H17NO3S
4-[4-(Methylsulfonyl)phenyl]-3-(p-tolyl)-1H-pyrrol-2(5H)-one chemical structure, C18H17NO3S, CAS 2268704-43-2
4-[4-(Methylsulfonyl)phenyl]-3-(p-tolyl)-1H-pyrrol-2(5H)-one
CAS 2268704-43-2C18H17NO3S
N-[(4-Hydroxy-4,5,6,7-tetrahydro-1-benzothiophen-4-yl)methyl]-1-benzofuran-2-carboxamide chemical structure, C18H17NO3S, CAS 2549052-19-7
N-[(4-Hydroxy-4,5,6,7-tetrahydro-1-benzothiophen-4-yl)methyl]-1-benzofuran-2-carboxamide
CAS 2549052-19-7C18H17NO3S

Frequently asked questions

What is the molar mass of C18H17NO3S?

The molar mass of C18H17NO3S is 327.40 g/mol, calculated from standard atomic weights for 18 carbon atoms, 17 hydrogen atoms, 1 nitrogen atom, 3 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 327.0929 Da.

How many compounds have the formula C18H17NO3S?

CompoundList lists 131 compounds with the molecular formula C18H17NO3S, including N-[3-(4-Methylbenzoyl)-4H,5H,7H-thieno[2,3-c]pyran-2-yl]prop-2-enamide, 7-Methoxy-N-{[1-(thiophen-3-yl)cyclopropyl]methyl}-1-benzofuran-2-carboxamide, N-(2-Methoxyphenyl)-3-phenyl-5,6-dihydro-1,4-oxathiine-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 C18H17NO3S?

C18H17NO3S has a degree of unsaturation of 11. 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.