C21H17NO5S
31 compounds have this formula on CompoundList.
- Molar mass
- 395.43g/mol
- Monoisotopic mass
- 395.0827Da
- Atoms
- 45
- Elements
- 5
- Rings plus double bonds
- 14
The formula C21H17NO5S describes a molecule made of 21 carbon atoms, 17 hydrogen atoms, 1 nitrogen atom, 5 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 × 2163.79%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 174.33%1.008 × 17 = 17.136 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 × 18.11%32.06 × 1 = 32.060 g/mol
Compounds with the formula C21H17NO5S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 31 of 31 compounds
![5-(3,4-Dimethoxyphenyl)-2-(4-methoxyphenyl)-4H-thieno[2,3-d][1,3]oxazin-4-one chemical structure, C21H17NO5S, CAS 342383-02-2](/s/SCXYXXRLDKCPNR-UHFFFAOYSA-N.svg)
![2-[4-[4-(Phenylcarbamoyl)phenyl]phenyl]sulfonylacetic acid chemical structure, C21H17NO5S, CAS 653588-57-9](/s/LBSPPOJIJNRUTG-UHFFFAOYSA-N.svg)
![2-[4-[3-(Phenylcarbamoyl)phenyl]phenyl]sulfonylacetic acid chemical structure, C21H17NO5S, CAS 653588-66-0](/s/RUEQIEWECZLBEN-UHFFFAOYSA-N.svg)
![Methyl 3-[4-(methoxycarbonyl)benzamido]-5-phenylthiophene-2-carboxylate chemical structure, C21H17NO5S, CAS 477326-76-4](/s/BEYJZDUBDTWWJZ-UHFFFAOYSA-N.svg)
![{[9-(4-Methylbenzene-1-sulfonyl)-9H-carbazol-2-yl]oxy}acetic acid chemical structure, C21H17NO5S, CAS 920982-20-3](/s/CFUDBEWJWALWEI-UHFFFAOYSA-N.svg)
![Methyl 2-methyl-5-[(2-naphthylsulfonyl)amino]-1-benzofuran-3-carboxylate chemical structure, C21H17NO5S, CAS 313394-09-1](/s/ZGOIWYQZVMRFBA-UHFFFAOYSA-N.svg)
![5-Phenyl-2-(3,4,5-trimethoxyphenyl)-4H-thieno[2,3-d][1,3]oxazin-4-one chemical structure, C21H17NO5S, CAS 380644-65-5](/s/WQCLZEKRHLJMFQ-UHFFFAOYSA-N.svg)
![Methyl 2-methyl-5-[(phenylsulfonyl)amino]naphtho[1,2-b]furan-3-carboxylate chemical structure, C21H17NO5S, CAS 442553-81-3](/s/DYUBSUDYQXJLKO-UHFFFAOYSA-N.svg)
![3-Thiophenecarboxylic acid, 2-[[(2E)-3-carboxy-1-oxo-2-propenyl]amino]-4-(1-naphthalenyl)-, 3-ethyl ester chemical structure, C21H17NO5S, CAS 519016-50-3](/s/JVSYCYPMGKXJQG-ZHACJKMWSA-N.svg)
![Methyl 3-(2,3-dihydrobenzo[b][1,4]dioxine-2-carboxamido)-5-phenylthiophene-2-carboxylate chemical structure, C21H17NO5S, CAS 681173-98-8](/s/UMLPACHYNODQQJ-UHFFFAOYSA-N.svg)
![Ethyl 2-{[3-(1,3-benzothiazol-2-yl)-2-oxo-2H-chromen-7-yl]oxy}propanoate chemical structure, C21H17NO5S, CAS 314745-64-7](/s/PVQCBDIFLQKSJQ-UHFFFAOYSA-N.svg)
![Methyl 2-methyl-5-[(1-naphthylsulfonyl)amino]-1-benzofuran-3-carboxylate chemical structure, C21H17NO5S, CAS 694460-76-9](/s/JLACRVXQOFWDQX-UHFFFAOYSA-N.svg)
![Ethyl [(5E)-2,4-dioxo-5-{[2-(prop-2-yn-1-yloxy)naphthalen-1-yl]methylidene}-1,3-thiazolidin-3-yl]acetate chemical structure, C21H17NO5S, CAS 432525-50-3](/s/LMMPYZRUEPVQIL-LDADJPATSA-N.svg)
![(2E)-4-{[3-(Ethoxycarbonyl)-4-(naphthalen-2-yl)thiophen-2-yl]amino}-4-oxobut-2-enoic acid chemical structure, C21H17NO5S, CAS 581781-39-7](/s/MKLQIZLGAQOVHJ-MDZDMXLPSA-N.svg)
![Ethyl 3-(benzo[d][1,3]dioxole-5-carboxamido)-5-phenylthiophene-2-carboxylate chemical structure, C21H17NO5S, CAS 922031-96-7](/s/OOEDQJCGWUNDFL-UHFFFAOYSA-N.svg)
![N-(2-(Benzo[b]thiophen-3-yl)-2-hydroxyethyl)-8-methoxy-2-oxo-2H-chromene-3-carboxamide chemical structure, C21H17NO5S, CAS 2034406-34-1](/s/GUAKCCXVNNKQHW-UHFFFAOYSA-N.svg)
- Ethyl (5E)-5-(1,3-benzodioxol-5-ylmethylidene)-4-oxo-2-(phenylamino)-4,5-dihydrothiophene-3-carboxylate309731-77-9C21H17NO5S
- Methyl 2-(Fmoc-amino)-4-oxo-4,5-dihydrothiophene-3-carboxylate1644061-55-1C21H17NO5S
- N-[2-(Furan-2-yl)-2-(thiophen-2-yl)ethyl]-8-methoxy-2-oxo-2H-chromene-3-carboxamide2097866-34-5C21H17NO5S
- N-[2-(Furan-2-yl)-2-(thiophen-3-yl)ethyl]-8-methoxy-2-oxo-2H-chromene-3-carboxamide2097921-11-2C21H17NO5S
- Methyl 2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-oxo-4,5-dihydrothiophene-3-carboxylateC21H17NO5S
- 4-Benzoyl-5-{[(benzyloxy)carbonyl]amino}-3-methylthiophene-2-carboxylic acid2639418-17-8C21H17NO5S
- Methyl 7-methoxy-9-(phenylsulfonyl)-9H-carbazole-3-carboxylate1283747-44-3C21H17NO5S
Frequently asked questions
What is the molar mass of C21H17NO5S?
The molar mass of C21H17NO5S is 395.43 g/mol, calculated from standard atomic weights for 21 carbon atoms, 17 hydrogen atoms, 1 nitrogen atom, 5 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 395.0827 Da.
How many compounds have the formula C21H17NO5S?
CompoundList lists 31 compounds with the molecular formula C21H17NO5S, including N-(1,1-Dioxido-2,3-dihydrothiophen-3-yl)-2-oxo-N-(p-tolyl)-2H-chromene-3-carboxamide, 5-(3,4-Dimethoxyphenyl)-2-(4-methoxyphenyl)-4H-thieno[2,3-d][1,3]oxazin-4-one, 2-((3-(Ethoxycarbonyl)-4-phenylthiophen-2-yl)carbamoyl)benzoic 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 C21H17NO5S?
C21H17NO5S 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.