Molecular formula
C21H16N2O4S
68 compounds have this formula on CompoundList.
- Molar mass
- 392.43g/mol
- Monoisotopic mass
- 392.0831Da
- Atoms
- 44
- Elements
- 5
- Rings plus double bonds
- 15
The formula C21H16N2O4S describes a molecule made of 21 carbon atoms, 16 hydrogen atoms, 2 nitrogen atoms, 4 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 × 2164.27%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 164.11%1.008 × 16 = 16.128 g/mol
- N Nitrogen × 27.14%14.007 × 2 = 28.014 g/mol
- O Oxygen × 416.31%15.999 × 4 = 63.996 g/mol
- S Sulfur × 18.17%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C21H16N2O4S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 68 of 68 compounds
N-(2-(4-Oxo-4H-3,1-benzoxazin-2-yl)phenyl)-p-toluenesulphonamide
CAS 3808-20-6C21H16N2O4S
![N-[2-Methoxy-4-(thiophene-2-carbonylamino)phenyl]-1-benzofuran-2-carboxamide chemical structure, C21H16N2O4S, CAS 425608-01-1](/s/ZLFAPJWEWBZKED-UHFFFAOYSA-N.svg)
N-[2-Methoxy-4-(thiophene-2-carbonylamino)phenyl]-1-benzofuran-2-carboxamide
CAS 425608-01-1C21H16N2O4S
PC-796
CAS 21413-28-5C21H16N2O4S
![3-[5-(Naphthalen-1-ylamino)-2,4-dioxo-thiazolidin-3-ylmethyl]-benzoic acid chemical structure, C21H16N2O4S, CAS 496024-49-8](/s/LYXBWZYFSOUZHF-UHFFFAOYSA-N.svg)
3-[5-(Naphthalen-1-ylamino)-2,4-dioxo-thiazolidin-3-ylmethyl]-benzoic acid
CAS 496024-49-8C21H16N2O4S
![N-(4-(Benzo[d]oxazol-2-yl)phenyl)-2-(methylsulfonyl)benzamide chemical structure, C21H16N2O4S, CAS 896366-26-0](/s/QQDUNWUZNUNIOY-UHFFFAOYSA-N.svg)
N-(4-(Benzo[d]oxazol-2-yl)phenyl)-2-(methylsulfonyl)benzamide
CAS 896366-26-0C21H16N2O4S
![N-(3-(Benzo[d]oxazol-2-yl)phenyl)-2-(methylsulfonyl)benzamide chemical structure, C21H16N2O4S, CAS 896365-90-5](/s/HEIBYCSXEUWCLD-UHFFFAOYSA-N.svg)
N-(3-(Benzo[d]oxazol-2-yl)phenyl)-2-(methylsulfonyl)benzamide
CAS 896365-90-5C21H16N2O4S
![Benzyl 6-benzyl-5,7-dioxo-6,7-dihydro-5H-[1,3]thiazolo[3,2-C]pyrimidine-2-carboxylate chemical structure, C21H16N2O4S, CAS 449798-64-5](/s/PLBINCOCFGQAJM-UHFFFAOYSA-N.svg)
Benzyl 6-benzyl-5,7-dioxo-6,7-dihydro-5H-[1,3]thiazolo[3,2-C]pyrimidine-2-carboxylate
CAS 449798-64-5C21H16N2O4S
3-Hydroxy-5-(2-methoxyphenyl)-1-(pyridin-2-yl)-4-(thiophen-2-ylcarbonyl)-1,5-dihydro-2H-pyrrol-2-one
CAS 383904-05-0C21H16N2O4S
![N-(4-(Phenylsulfonyl)benzyl)furo[2,3-c]pyridine-2-carboxamide chemical structure, C21H16N2O4S, CAS 1362153-21-6](/s/IPFCGFBLRONVPM-UHFFFAOYSA-N.svg)
N-(4-(Phenylsulfonyl)benzyl)furo[2,3-c]pyridine-2-carboxamide
CAS 1362153-21-6C21H16N2O4S
![N-(1-(Thiophene-2-carbonyl)indolin-6-yl)benzo[d][1,3]dioxole-5-carboxamide chemical structure, C21H16N2O4S, CAS 1060197-64-9](/s/XIDZGOWMDWQYRQ-UHFFFAOYSA-N.svg)
N-(1-(Thiophene-2-carbonyl)indolin-6-yl)benzo[d][1,3]dioxole-5-carboxamide
CAS 1060197-64-9C21H16N2O4S
![N-[3-(2,5-Dioxo-1-phenyl-2,5-dihydro-1H-pyrrol-3-yl)-4,5-dimethylthiophen-2-yl]furan-2-carboxamide chemical structure, C21H16N2O4S, CAS 690640-63-2](/s/PELYZJGAJKTFPM-UHFFFAOYSA-N.svg)
N-[3-(2,5-Dioxo-1-phenyl-2,5-dihydro-1H-pyrrol-3-yl)-4,5-dimethylthiophen-2-yl]furan-2-carboxamide
CAS 690640-63-2C21H16N2O4S
N-(3-Carbamoyl-5-phenylthiophen-2-yl)-7-methoxybenzofuran-2-carboxamide
CAS 941934-78-7C21H16N2O4S
![Methyl 4-(benzo[d]thiazol-2-yl(furan-2-ylmethyl)carbamoyl)benzoate chemical structure, C21H16N2O4S, CAS 922396-03-0](/s/GVQKPCMJDCMDBQ-UHFFFAOYSA-N.svg)
Methyl 4-(benzo[d]thiazol-2-yl(furan-2-ylmethyl)carbamoyl)benzoate
CAS 922396-03-0C21H16N2O4S
N-(4-(4-Methoxyphenyl)-5-methylthiazol-2-yl)-4-oxo-4H-chromene-2-carboxamide
CAS 536733-87-6C21H16N2O4S
![5-Methoxy-N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)-4-oxo-4H-pyran-2-carboxamide chemical structure, C21H16N2O4S, CAS 1040662-90-5](/s/FULMSHXTLPOPSA-UHFFFAOYSA-N.svg)
5-Methoxy-N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)-4-oxo-4H-pyran-2-carboxamide
CAS 1040662-90-5C21H16N2O4S
4-Acetyl-N-(4-(5-methoxybenzofuran-2-yl)thiazol-2-yl)benzamide
CAS 922106-46-5C21H16N2O4S
N-(2-Phenylphenyl)-2-(1,1,3-trioxo-1,2-benzothiazol-2-yl)acetamide
CAS 503024-08-6C21H16N2O4S
![4-{[5-(4-Methoxyphenyl)-4-oxo-3H,4H-thieno[2,3-d]pyrimidin-3-yl]methyl}benzoic acid chemical structure, C21H16N2O4S, CAS 457918-50-2](/s/BJBRGZWSPUDADO-UHFFFAOYSA-N.svg)
4-{[5-(4-Methoxyphenyl)-4-oxo-3H,4H-thieno[2,3-d]pyrimidin-3-yl]methyl}benzoic acid
CAS 457918-50-2C21H16N2O4S
![N-[[3-[5-(Hydroxymethyl)furan-2-yl]phenyl]carbamothioyl]-1-benzofuran-2-carboxamide chemical structure, C21H16N2O4S, CAS 712292-34-7](/s/UFWOQMQDAULNHP-UHFFFAOYSA-N.svg)
N-[[3-[5-(Hydroxymethyl)furan-2-yl]phenyl]carbamothioyl]-1-benzofuran-2-carboxamide
CAS 712292-34-7C21H16N2O4S
![2-[(4-Methyl-2-oxo-2H-chromen-7-yl)oxy]-N-(4-phenyl-1,3-thiazol-2-yl)acetamide chemical structure, C21H16N2O4S, CAS 307536-58-9](/s/BZMZKYSYEFVXMJ-UHFFFAOYSA-N.svg)
2-[(4-Methyl-2-oxo-2H-chromen-7-yl)oxy]-N-(4-phenyl-1,3-thiazol-2-yl)acetamide
CAS 307536-58-9C21H16N2O4S
![2-(4-Methylphenoxy)-N-[4-(2-oxochromen-3-yl)-1,3-thiazol-2-yl]acetamide chemical structure, C21H16N2O4S, CAS 380868-76-8](/s/COVBNFCMBNDXQO-UHFFFAOYSA-N.svg)
2-(4-Methylphenoxy)-N-[4-(2-oxochromen-3-yl)-1,3-thiazol-2-yl]acetamide
CAS 380868-76-8C21H16N2O4S
![4-Ethoxy-N-[4-(2-oxo-2H-chromen-3-yl)-1,3-thiazol-2-yl]benzamide chemical structure, C21H16N2O4S, CAS 313470-04-1](/s/YZZDKSUOJPZEHH-UHFFFAOYSA-N.svg)
4-Ethoxy-N-[4-(2-oxo-2H-chromen-3-yl)-1,3-thiazol-2-yl]benzamide
CAS 313470-04-1C21H16N2O4S
![4-{[5-(Naphthylamino)-2,4-dioxo-1,3-thiazolidin-3-yl]methyl}benzoic acid chemical structure, C21H16N2O4S, CAS 1009313-02-3](/s/LGORDELEJHVZEZ-UHFFFAOYSA-N.svg)
4-{[5-(Naphthylamino)-2,4-dioxo-1,3-thiazolidin-3-yl]methyl}benzoic acid
CAS 1009313-02-3C21H16N2O4S
![Methyl 2-[(3-methoxynaphthalene-2-carbonyl)amino]-1,3-benzothiazole-6-carboxylate chemical structure, C21H16N2O4S, CAS 888409-16-3](/s/JSDNOZMADPPZBJ-UHFFFAOYSA-N.svg)
Methyl 2-[(3-methoxynaphthalene-2-carbonyl)amino]-1,3-benzothiazole-6-carboxylate
CAS 888409-16-3C21H16N2O4S
- Methyl 3-[[2-(5-methylfuran-2-yl)quinoline-4-carbonyl]amino]thiophene-2-carboxylate313386-40-2C21H16N2O4S
- N-(1,2-Dihydroacenaphthylen-5-yl)-2-(1,1,3-trioxo-1,2-benzothiazol-2-yl)acetamide443108-48-3C21H16N2O4S
- 6-Methoxy-N-(5-methyl-4-phenyl-1,3-thiazol-2-yl)-2-oxochromene-3-carboxamide325779-31-5C21H16N2O4S
- 2-((2-Cyanophenyl)sulfonyl)-N-(4-methoxyphenyl)benzenecarboxamide477885-81-7C21H16N2O4S
- 2-{[3-(1,3-Dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)propyl]sulfanyl}pyridine-3-carboxylic acid324774-58-5C21H16N2O4S
- 4-((1,3-Dihydro-1,3-dioxo-2H-isoindol-2-yl)methyl)-N-phenylbenzenesulphonamide94136-00-2C21H16N2O4S
- N-(4-(4-Ethoxyphenyl)thiazol-2-yl)-4-oxo-4H-chromene-2-carboxamide391896-62-1C21H16N2O4S
- (4E)-4-[Hydroxy(phenyl)methylidene]-5-(4-methoxyphenyl)-1-(1,3-thiazol-2-yl)pyrrolidine-2,3-dione371129-78-1C21H16N2O4S
- 6-(((1-Methyl-1H-imidazol-2-yl)thio)methyl)-4-oxo-4H-pyran-3-yl 1-naphthoate896310-31-9C21H16N2O4S
- 2-(3-((4-Methylbenzo[d]thiazol-2-yl)oxy)azetidine-1-carbonyl)-4H-chromen-4-one1396853-81-8C21H16N2O4S
- 4-({3-Methyl-4-oxo-5-[4-(2-propynyloxy)benzylidene]-1,3-thiazolidin-2-ylidene}amino)benzoic acid443877-92-7C21H16N2O4S
- N-(4-(4-Methoxyphenyl)-5-methylthiazol-2-yl)-2-oxo-2H-chromene-3-carboxamide536733-88-7C21H16N2O4S
- N-(4-(4-Methoxyphenyl)-5-methylthiazol-2-yl)-4-oxo-4H-chromene-3-carboxamide536734-02-8C21H16N2O4S
- N-(4-(2-Oxo-2H-chromen-3-yl)thiazol-2-yl)-3-phenoxypropanamide477547-32-3C21H16N2O4S
- (Z)-2-(4-(Benzo[d][1,3]dioxol-5-yl)thiazol-2-yl)-3-(2,4-dimethoxyphenyl)acrylonitrile476671-70-2C21H16N2O4S
- 6-(((1-Methyl-1H-imidazol-2-yl)thio)methyl)-4-oxo-4H-pyran-3-yl 2-naphthoate896310-38-6C21H16N2O4S
- N-(4H-Chromeno[4,3-d]thiazol-2-yl)-7-ethoxybenzofuran-2-carboxamide921875-46-9C21H16N2O4S
- Methyl 2-{[(3-methyl-1-benzofuran-2-yl)carbonyl]amino}-4-(pyridin-4-yl)thiophene-3-carboxylate717868-33-2C21H16N2O4S
- 2-[4-Methoxy-3-[(4-nitrophenoxy)methyl]phenyl]-1,3-benzothiazole371206-24-5C21H16N2O4S
- (4-Formyl-2-methoxyphenyl) 3-methyl-1-phenylthieno[2,3-c]pyrazole-5-carboxylate327087-24-1C21H16N2O4S
- N-(4-(4-Methoxy-3-methylphenyl)thiazol-2-yl)-4-oxo-4H-chromene-3-carboxamide477551-01-2C21H16N2O4S
- 2-Amino-4-(2,5-dimethoxyphenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carbonitrile704875-65-0C21H16N2O4S
- 2-(Benzenesulfonyl)-N-[3-(1,3-benzoxazol-2-yl)phenyl]acetamide895459-38-8C21H16N2O4S
- N-(4-(Benzo[d]oxazol-2-yl)phenyl)-3-(methylsulfonyl)benzamide896290-99-6C21H16N2O4S
- N-(4-(Benzo[d]oxazol-2-yl)phenyl)-4-(methylsulfonyl)benzamide896344-45-9C21H16N2O4S
- 4-[3-Amino-6-(4-methoxyphenyl)thieno[2,3-B]pyridine-2-carbonyl]benzene-1,2-diol934090-82-1C21H16N2O4S
- Benzyl 2-{2,4-dioxo-3-phenyl-1H,2H,3H,4H-thieno[3,2-d]pyrimidin-1-yl}acetate892273-33-5C21H16N2O4S
- N-(Benzo[d]thiazol-2-yl)-N-(furan-2-ylmethyl)-2,3-dihydrobenzo[b][1,4]dioxine-2-carboxamide922406-06-2C21H16N2O4S
- 4-[(1,1-Dioxido-1,2-benzothiazol-3-yl)amino]phenyl 2-methylbenzoate592467-11-3C21H16N2O4S
- (Z)-N-(3-Allyl-4-methoxybenzo[d]thiazol-2(3H)-ylidene)-4-oxo-4H-chromene-2-carboxamide868376-40-3C21H16N2O4S
- (Z)-N-(3-Allyl-4-methoxybenzo[d]thiazol-2(3H)-ylidene)-2-oxo-2H-chromene-3-carboxamide868376-43-6C21H16N2O4S
- (Z)-2-(4-(Benzo[d][1,3]dioxol-5-yl)thiazol-2-yl)-3-(2,3-dimethoxyphenyl)acrylonitrile476671-55-3C21H16N2O4S
- N-[3-(1,3-Benzoxazol-2-yl)phenyl]-4-methylsulfonylbenzamide896343-98-9C21H16N2O4S
- (E)-2-(3-(Benzo[d][1,3]dioxol-5-yl)acrylamido)-5-phenylthiophene-3-carboxamide1286744-34-0C21H16N2O4S
- 8-Methoxy-2-oxo-N-((2-(thiophen-2-yl)pyridin-4-yl)methyl)-2H-chromene-3-carboxamide2034437-18-6C21H16N2O4S
- 2-(Benzenesulfonyl)-N-[4-(1,3-benzoxazol-2-yl)phenyl]acetamide898405-99-7C21H16N2O4S
- N-(3-Carbamoyl-4,5-dimethylthiophen-2-yl)-3-oxo-3H-benzo[f]chromene-2-carboxamide896308-82-0C21H16N2O4S
- 4-Acetyl-N-(4-(7-methoxybenzofuran-2-yl)thiazol-2-yl)benzamide921869-47-8C21H16N2O4S
- N-(2-Amino-9,10-dihydro-9,10-dioxo-1-anthracenyl)-4-methylbenzenesulfonamide43046-98-6C21H16N2O4S
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-[2-(4-ethylphenyl)-1,3-thiazol-4-yl]acetate2248414-00-6C21H16N2O4S
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(2,4-dimethylphenyl)-4-methyl-1,3-thiazole-5-carboxylate2248277-76-9C21H16N2O4S
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-[4-(propan-2-yl)phenyl]-1,3-thiazole-4-carboxylate2248381-55-5C21H16N2O4S
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(1H-pyrrol-1-yl)-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate2248365-32-2C21H16N2O4S
- (9H-Fluoren-9-yl)methyl N-{7-oxo-4H,6H,7H-pyrano[3,4-d][1,3]thiazol-2-yl}carbamate2770498-29-6C21H16N2O4S
Frequently asked questions
What is the molar mass of C21H16N2O4S?
The molar mass of C21H16N2O4S is 392.43 g/mol, calculated from standard atomic weights for 21 carbon atoms, 16 hydrogen atoms, 2 nitrogen atoms, 4 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 392.0831 Da.
How many compounds have the formula C21H16N2O4S?
CompoundList lists 68 compounds with the molecular formula C21H16N2O4S, including N-(2-(4-Oxo-4H-3,1-benzoxazin-2-yl)phenyl)-p-toluenesulphonamide, N-[2-Methoxy-4-(thiophene-2-carbonylamino)phenyl]-1-benzofuran-2-carboxamide, PC-796. 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 C21H16N2O4S?
C21H16N2O4S has a degree of unsaturation of 15. 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.