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Molecular formula

C12H9NO4S2

17 compounds have this formula on CompoundList.

Molar mass
295.33g/mol
Monoisotopic mass
294.9973Da
Atoms
28
Elements
5
Rings plus double bonds
9

The formula C12H9NO4S2 describes a molecule made of 12 carbon atoms, 9 hydrogen atoms, 1 nitrogen atom, 4 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 × 1248.80%
    12.011 × 12 = 144.132 g/mol
  • H Hydrogen × 93.07%
    1.008 × 9 = 9.072 g/mol
  • N Nitrogen × 14.74%
    14.007 × 1 = 14.007 g/mol
  • O Oxygen × 421.67%
    15.999 × 4 = 63.996 g/mol
  • S Sulfur × 221.71%
    32.06 × 2 = 64.120 g/mol
Look up another formula

Compounds with the formula C12H9NO4S2

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

Showing 1 to 17 of 17 compounds

N-(1-Oxo-1,3-dihydro-2-benzofuran-5-yl)thiophene-2-sulfonamide chemical structure, C12H9NO4S2, CAS 632292-96-7
N-(1-Oxo-1,3-dihydro-2-benzofuran-5-yl)thiophene-2-sulfonamide
CAS 632292-96-7C12H9NO4S2
2-[(5E)-5-[(3-Hydroxyphenyl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]acetic acid chemical structure, C12H9NO4S2, CAS 299952-50-4
2-[(5E)-5-[(3-Hydroxyphenyl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]acetic acid
CAS 299952-50-4C12H9NO4S2
[(5Z)-5-(3-Hydroxybenzylidene)-4-oxo-2-thioxo-1,3-thiazolidin-3-yl]acetic acid chemical structure, C12H9NO4S2, CAS 1151944-62-5
[(5Z)-5-(3-Hydroxybenzylidene)-4-oxo-2-thioxo-1,3-thiazolidin-3-yl]acetic acid
CAS 1151944-62-5C12H9NO4S2
{4-[(Z)-(4-Oxo-2-thioxo-1,3-thiazolidin-5-ylidene)methyl]phenoxy}acetic acid chemical structure, C12H9NO4S2, CAS 91493-67-3
{4-[(Z)-(4-Oxo-2-thioxo-1,3-thiazolidin-5-ylidene)methyl]phenoxy}acetic acid
CAS 91493-67-3C12H9NO4S2
3-[(4-Nitrobenzyl)sulfanyl]-2-thiophene-carboxylic acid chemical structure, C12H9NO4S2, CAS 251097-01-5
3-[(4-Nitrobenzyl)sulfanyl]-2-thiophene-carboxylic acid
CAS 251097-01-5C12H9NO4S2
{2-[(4-Oxo-2-thioxo-1,3-thiazolidin-5-ylidene)methyl]phenoxy}acetic acid chemical structure, C12H9NO4S2, CAS 91493-66-2
{2-[(4-Oxo-2-thioxo-1,3-thiazolidin-5-ylidene)methyl]phenoxy}acetic acid
CAS 91493-66-2C12H9NO4S2
Benzenesulfonothioic acid, S-(4-nitrophenyl) ester chemical structure, C12H9NO4S2, CAS 1150-28-3
Benzenesulfonothioic acid, S-(4-nitrophenyl) ester
CAS 1150-28-3C12H9NO4S2
2-(4-Methoxyphenyl)thieno[2,3-d]isothiazol-3(2H)-one 1,1-dioxide chemical structure, C12H9NO4S2, CAS 946293-88-5
2-(4-Methoxyphenyl)thieno[2,3-d]isothiazol-3(2H)-one 1,1-dioxide
CAS 946293-88-5C12H9NO4S2
(E)-2-(5-(2-Hydroxybenzylidene)-4-oxo-2-thioxothiazolidin-3-yl)acetic acid chemical structure, C12H9NO4S2, CAS 301343-17-9
(E)-2-(5-(2-Hydroxybenzylidene)-4-oxo-2-thioxothiazolidin-3-yl)acetic acid
CAS 301343-17-9C12H9NO4S2
Benzenesulfonothioic acid, S-(2-nitrophenyl) ester chemical structure, C12H9NO4S2, CAS 18512-80-6
Benzenesulfonothioic acid, S-(2-nitrophenyl) ester
CAS 18512-80-6C12H9NO4S2
2-[5-((2E)-3-(2-Furyl)prop-2-enylidene)-4-oxo-2-thioxo-1,3-thiazolidin-3-yl]ac etic acid chemical structure, C12H9NO4S2, CAS 848996-29-2
2-[5-((2E)-3-(2-Furyl)prop-2-enylidene)-4-oxo-2-thioxo-1,3-thiazolidin-3-yl]ac etic acid
CAS 848996-29-2C12H9NO4S2
5-[(4-Hydroxyphenyl)methylene]-4-oxo-2-thioxo-3-thiazolidineacetic acid chemical structure, C12H9NO4S2, CAS 82158-59-6
5-[(4-Hydroxyphenyl)methylene]-4-oxo-2-thioxo-3-thiazolidineacetic acid
CAS 82158-59-6C12H9NO4S2
3-[2-(4-Nitrobenzenesulfonyl)ethenyl]thiophene chemical structure, C12H9NO4S2, CAS 1351504-86-3
3-[2-(4-Nitrobenzenesulfonyl)ethenyl]thiophene
CAS 1351504-86-3C12H9NO4S2
Methyl 4,4-dioxo-9H-thieno[3,4-b][1,4]benzothiazine-1-carboxylate chemical structure, C12H9NO4S2, CAS 1557296-93-1
Methyl 4,4-dioxo-9H-thieno[3,4-b][1,4]benzothiazine-1-carboxylate
CAS 1557296-93-1C12H9NO4S2
S-Phenyl 2-nitrobenzenesulfonothioate chemical structure, C12H9NO4S2, CAS 42267-32-3
S-Phenyl 2-nitrobenzenesulfonothioate
CAS 42267-32-3C12H9NO4S2
S-(3-Nitrophenyl)benzenethiosulfonate chemical structure, C12H9NO4S2, CAS 95533-72-5
S-(3-Nitrophenyl)benzenethiosulfonate
CAS 95533-72-5C12H9NO4S2
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1,3-dithiolane-2-carboxylate chemical structure, C12H9NO4S2, CAS 2248339-98-0
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1,3-dithiolane-2-carboxylate
CAS 2248339-98-0C12H9NO4S2

Frequently asked questions

What is the molar mass of C12H9NO4S2?

The molar mass of C12H9NO4S2 is 295.33 g/mol, calculated from standard atomic weights for 12 carbon atoms, 9 hydrogen atoms, 1 nitrogen atom, 4 oxygen atoms and 2 sulfur atoms. The monoisotopic mass is 294.9973 Da.

How many compounds have the formula C12H9NO4S2?

CompoundList lists 17 compounds with the molecular formula C12H9NO4S2, including N-(1-Oxo-1,3-dihydro-2-benzofuran-5-yl)thiophene-2-sulfonamide, 2-[(5E)-5-[(3-Hydroxyphenyl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]acetic acid, [(5Z)-5-(3-Hydroxybenzylidene)-4-oxo-2-thioxo-1,3-thiazolidin-3-yl]acetic acid. 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 C12H9NO4S2?

C12H9NO4S2 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.