CompoundList
Sign in
Molecular formula

C18H21NO5S2

34 compounds have this formula on CompoundList.

Molar mass
395.49g/mol
Monoisotopic mass
395.0861Da
Atoms
47
Elements
5
Rings plus double bonds
9

The formula C18H21NO5S2 describes a molecule made of 18 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom, 5 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 × 1854.67%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 215.35%
    1.008 × 21 = 21.168 g/mol
  • N Nitrogen × 13.54%
    14.007 × 1 = 14.007 g/mol
  • O Oxygen × 520.23%
    15.999 × 5 = 79.995 g/mol
  • S Sulfur × 216.21%
    32.06 × 2 = 64.120 g/mol
Look up another formula

Compounds with the formula C18H21NO5S2

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

Showing 1 to 34 of 34 compounds

4-[Butyryl(thien-2-ylsulfonyl)amino]phenyl butyrate chemical structure, C18H21NO5S2, CAS 494827-72-4
4-[Butyryl(thien-2-ylsulfonyl)amino]phenyl butyrate
CAS 494827-72-4C18H21NO5S2
N-(1,1-Dioxidotetrahydrothiophen-3-yl)-2-(4-methoxyphenoxy)-N-(thiophen-2-ylmethyl)acetamide chemical structure, C18H21NO5S2, CAS 587005-93-4
N-(1,1-Dioxidotetrahydrothiophen-3-yl)-2-(4-methoxyphenoxy)-N-(thiophen-2-ylmethyl)acetamide
CAS 587005-93-4C18H21NO5S2
2-(2,5-Dimethoxyphenyl)-3-((4-methoxyphenyl)sulfonyl)thiazolidine chemical structure, C18H21NO5S2, CAS 402947-10-8
2-(2,5-Dimethoxyphenyl)-3-((4-methoxyphenyl)sulfonyl)thiazolidine
CAS 402947-10-8C18H21NO5S2
N-(1,1-Dioxidotetrahydrothiophen-3-yl)-2-(2-methoxyphenoxy)-N-(thiophen-2-ylmethyl)acetamide chemical structure, C18H21NO5S2, CAS 620564-07-0
N-(1,1-Dioxidotetrahydrothiophen-3-yl)-2-(2-methoxyphenoxy)-N-(thiophen-2-ylmethyl)acetamide
CAS 620564-07-0C18H21NO5S2
((4-(o-Tolyloxy)phenyl)sulfonyl)methionine chemical structure, C18H21NO5S2, CAS 1009755-91-2
((4-(o-Tolyloxy)phenyl)sulfonyl)methionine
CAS 1009755-91-2C18H21NO5S2
6-[(5Z)-5-[(3-Ethoxy-4-hydroxyphenyl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]hexanoic acid chemical structure, C18H21NO5S2, CAS 301688-57-3
6-[(5Z)-5-[(3-Ethoxy-4-hydroxyphenyl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]hexanoic acid
CAS 301688-57-3C18H21NO5S2
3-Pyrrolidinol, 1-[(4-methylphenyl)sulfonyl]-, 3-(4-methylbenzenesulfonate), (3S)- chemical structure, C18H21NO5S2, CAS 133034-01-2
3-Pyrrolidinol, 1-[(4-methylphenyl)sulfonyl]-, 3-(4-methylbenzenesulfonate), (3S)-
CAS 133034-01-2C18H21NO5S2
Ethyl 2-(3-(ethylsulfonyl)benzamido)-4,5-dimethylthiophene-3-carboxylate chemical structure, C18H21NO5S2, CAS 886918-02-1
Ethyl 2-(3-(ethylsulfonyl)benzamido)-4,5-dimethylthiophene-3-carboxylate
CAS 886918-02-1C18H21NO5S2
N-((4-(Thiophen-2-yl)tetrahydro-2H-pyran-4-yl)methyl)-2,3-dihydrobenzo[b][1,4]dioxine-6-sulfonamide chemical structure, C18H21NO5S2, CAS 1203181-04-7
N-((4-(Thiophen-2-yl)tetrahydro-2H-pyran-4-yl)methyl)-2,3-dihydrobenzo[b][1,4]dioxine-6-sulfonamide
CAS 1203181-04-7C18H21NO5S2
1-Tosyl-3-pyrrolidinol Tosylate chemical structure, C18H21NO5S2, CAS 131912-34-0
1-Tosyl-3-pyrrolidinol Tosylate
CAS 131912-34-0C18H21NO5S2
6-[(5Z)-5-[(3,4-Dimethoxyphenyl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]hexanoic acid chemical structure, C18H21NO5S2, CAS 15165-44-3
6-[(5Z)-5-[(3,4-Dimethoxyphenyl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]hexanoic acid
CAS 15165-44-3C18H21NO5S2
Diethyl 5-[(5-ethylthiophene-3-carbonyl)amino]-3-methylthiophene-2,4-dicarboxylate chemical structure, C18H21NO5S2, CAS 438215-47-5
Diethyl 5-[(5-ethylthiophene-3-carbonyl)amino]-3-methylthiophene-2,4-dicarboxylate
CAS 438215-47-5C18H21NO5S2
Methyl 6-[(5E)-5-(4-hydroxy-3-methoxybenzylidene)-4-oxo-2-thioxo-1,3-thiazolidin-3-yl]hexanoate chemical structure, C18H21NO5S2, CAS 329224-43-3
Methyl 6-[(5E)-5-(4-hydroxy-3-methoxybenzylidene)-4-oxo-2-thioxo-1,3-thiazolidin-3-yl]hexanoate
CAS 329224-43-3C18H21NO5S2
Dipropan-2-yl 3-methyl-5-(thiophene-2-carbonylamino)thiophene-2,4-dicarboxylate chemical structure, C18H21NO5S2, CAS 352682-89-4
Dipropan-2-yl 3-methyl-5-(thiophene-2-carbonylamino)thiophene-2,4-dicarboxylate
CAS 352682-89-4C18H21NO5S2
6-[5-(2,5-Dimethoxy-benzylidene)-4-oxo-2-thioxo-thiazolidin-3-yl]-hexanoic acid chemical structure, C18H21NO5S2, CAS 307539-01-1
6-[5-(2,5-Dimethoxy-benzylidene)-4-oxo-2-thioxo-thiazolidin-3-yl]-hexanoic acid
CAS 307539-01-1C18H21NO5S2
Methyl 3-[(5Z)-5-(3-methoxy-4-propoxybenzylidene)-4-oxo-2-thioxo-1,3-thiazolidin-3-yl]propanoate chemical structure, C18H21NO5S2, CAS 303117-38-6
Methyl 3-[(5Z)-5-(3-methoxy-4-propoxybenzylidene)-4-oxo-2-thioxo-1,3-thiazolidin-3-yl]propanoate
CAS 303117-38-6C18H21NO5S2
6-[(5Z)-5-(2,4-Dimethoxybenzylidene)-4-oxo-2-thioxo-1,3-thiazolidin-3-yl]hexanoic acid chemical structure, C18H21NO5S2, CAS 380589-85-5
6-[(5Z)-5-(2,4-Dimethoxybenzylidene)-4-oxo-2-thioxo-1,3-thiazolidin-3-yl]hexanoic acid
CAS 380589-85-5C18H21NO5S2
(E)-4-((Furan-2-ylmethyl)sulfonyl)-1-(styrylsulfonyl)piperidine chemical structure, C18H21NO5S2, CAS 1448140-95-1
(E)-4-((Furan-2-ylmethyl)sulfonyl)-1-(styrylsulfonyl)piperidine
CAS 1448140-95-1C18H21NO5S2
1-((3,4-Dimethylphenyl)sulfonyl)-3-((4-methoxyphenyl)sulfonyl)azetidine chemical structure, C18H21NO5S2, CAS 1798034-49-7
1-((3,4-Dimethylphenyl)sulfonyl)-3-((4-methoxyphenyl)sulfonyl)azetidine
CAS 1798034-49-7C18H21NO5S2
3-((4-Methoxyphenyl)sulfonyl)-1-(phenethylsulfonyl)azetidine chemical structure, C18H21NO5S2, CAS 1797017-38-9
3-((4-Methoxyphenyl)sulfonyl)-1-(phenethylsulfonyl)azetidine
CAS 1797017-38-9C18H21NO5S2
Butyl 2-[(5Z)-5-[(3,4-dimethoxyphenyl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]acetate chemical structure, C18H21NO5S2, CAS 681833-40-9
Butyl 2-[(5Z)-5-[(3,4-dimethoxyphenyl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]acetate
CAS 681833-40-9C18H21NO5S2
2-(4-(Isopropylsulfonyl)phenyl)-N-(4-(methylsulfonyl)phenyl)acetamide chemical structure, C18H21NO5S2, CAS 955597-07-6
2-(4-(Isopropylsulfonyl)phenyl)-N-(4-(methylsulfonyl)phenyl)acetamide
CAS 955597-07-6C18H21NO5S2
Ethyl 5-(2-(4-(ethylsulfonyl)phenyl)acetamido)-3-methylthiophene-2-carboxylate chemical structure, C18H21NO5S2, CAS 919758-25-1
Ethyl 5-(2-(4-(ethylsulfonyl)phenyl)acetamido)-3-methylthiophene-2-carboxylate
CAS 919758-25-1C18H21NO5S2
Ethyl 3-methyl-5-(4-(phenylsulfonyl)butanamido)thiophene-2-carboxylate chemical structure, C18H21NO5S2, CAS 923087-36-9
Ethyl 3-methyl-5-(4-(phenylsulfonyl)butanamido)thiophene-2-carboxylate
CAS 923087-36-9C18H21NO5S2

Frequently asked questions

What is the molar mass of C18H21NO5S2?

The molar mass of C18H21NO5S2 is 395.49 g/mol, calculated from standard atomic weights for 18 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom, 5 oxygen atoms and 2 sulfur atoms. The monoisotopic mass is 395.0861 Da.

How many compounds have the formula C18H21NO5S2?

CompoundList lists 34 compounds with the molecular formula C18H21NO5S2, including 4-[Butyryl(thien-2-ylsulfonyl)amino]phenyl butyrate, N-(1,1-Dioxidotetrahydrothiophen-3-yl)-2-(4-methoxyphenoxy)-N-(thiophen-2-ylmethyl)acetamide, 2-(2,5-Dimethoxyphenyl)-3-((4-methoxyphenyl)sulfonyl)thiazolidine. 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 C18H21NO5S2?

C18H21NO5S2 has a degree of unsaturation of 9. 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.