Molecular formula
C21H22N2O5S
104 compounds have this formula on CompoundList.
- Molar mass
- 414.48g/mol
- Monoisotopic mass
- 418.1501Da
- Atoms
- 51
- Elements
- 5
- Rings plus double bonds
- 12
The formula C21H22N2O5S describes a molecule made of 21 carbon atoms, 22 hydrogen atoms, 2 nitrogen atoms, 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 × 2160.86%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 225.35%1.008 × 22 = 22.176 g/mol
- N Nitrogen × 26.76%14.007 × 2 = 28.014 g/mol
- O Oxygen × 519.30%15.999 × 5 = 79.995 g/mol
- S Sulfur × 17.74%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C21H22N2O5S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 104 compounds
Nafcillin
CAS 147-52-4C21H22N2O5S
S-((Acetylamino)methyl)-N-((9H-fluoren-9-ylmethoxy)carbonyl)-L-cysteine
CAS 86060-81-3C21H22N2O5S
![Ethyl 2-{[N-(2-furylmethyl)glycyl]amino}-4-(4-methoxyphenyl)-3-thiophenecarboxylate chemical structure, C21H22N2O5S, CAS 565167-77-3](/s/URMFBFOEKWRZSY-UHFFFAOYSA-N.svg)
Ethyl 2-{[N-(2-furylmethyl)glycyl]amino}-4-(4-methoxyphenyl)-3-thiophenecarboxylate
CAS 565167-77-3C21H22N2O5S
![N-Furan-2-ylmethyl-2-[(2-methoxy-phenyl)-(toluene-4-sulfonyl)-amino]-acetamide chemical structure, C21H22N2O5S, CAS 431999-83-6](/s/BKWJYJIWUUDCMS-UHFFFAOYSA-N.svg)
N-Furan-2-ylmethyl-2-[(2-methoxy-phenyl)-(toluene-4-sulfonyl)-amino]-acetamide
CAS 431999-83-6C21H22N2O5S
N-alpha-(9-Fluorenylmethyloxycarbonyl)-S-(acetyl-aminomethyl)-D-cysteine
CAS 168300-88-7C21H22N2O5S
2-(3-(3,4-Dimethoxyphenethyl)-5-oxo-1-phenyl-2-thioxoimidazolidin-4-yl)acetic acid
CAS 1008393-63-2C21H22N2O5S
![3,4-Dihydro-6-methyl-2-oxo-5-[(phenylmethoxy)carbonyl]-4-(2-thienyl)-1(2H)-pyrimidinebutanoic acid chemical structure, C21H22N2O5S, CAS 831217-41-5](/s/XNKVRXVTIXOUKA-UHFFFAOYSA-N.svg)
3,4-Dihydro-6-methyl-2-oxo-5-[(phenylmethoxy)carbonyl]-4-(2-thienyl)-1(2H)-pyrimidinebutanoic acid
CAS 831217-41-5C21H22N2O5S
![Methyl 2-(N-methyl-3-oxo-1,2,3,5,6,7-hexahydropyrido[3,2,1-ij]quinoline-9-sulfonamido)benzoate chemical structure, C21H22N2O5S, CAS 898423-52-4](/s/IIAAHPGNQLQIBP-UHFFFAOYSA-N.svg)
Methyl 2-(N-methyl-3-oxo-1,2,3,5,6,7-hexahydropyrido[3,2,1-ij]quinoline-9-sulfonamido)benzoate
CAS 898423-52-4C21H22N2O5S
![4-[4-(Benzenesulfonyl)-2-(4-ethoxyphenyl)-1,3-oxazol-5-yl]morpholine chemical structure, C21H22N2O5S, CAS 823829-06-7](/s/XZEDXNSKZZMSDY-UHFFFAOYSA-N.svg)
4-[4-(Benzenesulfonyl)-2-(4-ethoxyphenyl)-1,3-oxazol-5-yl]morpholine
CAS 823829-06-7C21H22N2O5S
![N-[4-({4-Oxo-3,4-dihydrospiro[1-benzopyran-2,4'-piperidine]-1'-yl}sulfonyl)phenyl]acetamide chemical structure, C21H22N2O5S, CAS 877811-48-8](/s/UVRSAENNNHJXBT-UHFFFAOYSA-N.svg)
N-[4-({4-Oxo-3,4-dihydrospiro[1-benzopyran-2,4'-piperidine]-1'-yl}sulfonyl)phenyl]acetamide
CAS 877811-48-8C21H22N2O5S
![3-[1-{2-[(2,5-Dimethoxyphenyl)amino]-2-oxoethyl}-5-(2-thienyl)-1H-pyrrol-2-yl]propanoic acid chemical structure, C21H22N2O5S, CAS 713506-35-5](/s/SKJNFSFQLFOUKF-UHFFFAOYSA-N.svg)
3-[1-{2-[(2,5-Dimethoxyphenyl)amino]-2-oxoethyl}-5-(2-thienyl)-1H-pyrrol-2-yl]propanoic acid
CAS 713506-35-5C21H22N2O5S
![4-(Furan-2-ylmethylsulfamoyl)-N-[1-(2-methoxyphenyl)ethyl]benzamide chemical structure, C21H22N2O5S, CAS 852940-88-6](/s/QOKDYDAUXLGLQN-UHFFFAOYSA-N.svg)
4-(Furan-2-ylmethylsulfamoyl)-N-[1-(2-methoxyphenyl)ethyl]benzamide
CAS 852940-88-6C21H22N2O5S
N-(4-Methoxy-3-piperidin-1-ylsulfonylphenyl)-1-benzofuran-2-carboxamide
CAS 865275-53-2C21H22N2O5S
![4-[(4-Methoxyphenyl)sulfamoyl]-N-methyl-N-[(5-methylfuran-2-yl)methyl]benzamide chemical structure, C21H22N2O5S, CAS 794539-00-7](/s/GGJJVLDGNYOCJP-UHFFFAOYSA-N.svg)
4-[(4-Methoxyphenyl)sulfamoyl]-N-methyl-N-[(5-methylfuran-2-yl)methyl]benzamide
CAS 794539-00-7C21H22N2O5S
Zinquin ethyl ester
CAS 181530-09-6C21H22N2O5S
![1-Benzofuran-2-yl-[4-(4-ethoxyphenyl)sulfonylpiperazin-1-yl]methanone chemical structure, C21H22N2O5S, CAS 852128-66-6](/s/KAUFBVXYXCYTJR-UHFFFAOYSA-N.svg)
1-Benzofuran-2-yl-[4-(4-ethoxyphenyl)sulfonylpiperazin-1-yl]methanone
CAS 852128-66-6C21H22N2O5S
4-(Benzenesulfonyl)-2-(4-methoxyphenyl)-N-(oxolan-2-ylmethyl)-1,3-oxazol-5-amine
CAS 855714-99-7C21H22N2O5S
Ethyl 2-(4,8-dimethyl-2-oxo-N-phenyl-1,2-dihydroquinoline-6-sulfonamido)acetate
CAS 899999-07-6C21H22N2O5S
![2-Amino-3-[4-[5-(dimethylamino)naphthalen-1-yl]sulfonyloxyphenyl]propanoic acid chemical structure, C21H22N2O5S, CAS 1252-04-6](/s/PQNLCRQPGFBGJF-UHFFFAOYSA-N.svg)
2-Amino-3-[4-[5-(dimethylamino)naphthalen-1-yl]sulfonyloxyphenyl]propanoic acid
CAS 1252-04-6C21H22N2O5S
![N-(2-(Cyclopropanecarbonyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)-2,3-dihydrobenzo[b][1,4]dioxine-6-sulfonamide chemical structure, C21H22N2O5S, CAS 955714-31-5](/s/ZKSDLLPQWOPSCY-UHFFFAOYSA-N.svg)
N-(2-(Cyclopropanecarbonyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)-2,3-dihydrobenzo[b][1,4]dioxine-6-sulfonamide
CAS 955714-31-5C21H22N2O5S
![(E)-3-(Benzo[d][1,3]dioxol-5-yl)-N-(2-((3,4-dihydroisoquinolin-2(1H)-yl)sulfonyl)ethyl)acrylamide chemical structure, C21H22N2O5S, CAS 941956-55-4](/s/PAJHMWVDJLTSLF-SOFGYWHQSA-N.svg)
(E)-3-(Benzo[d][1,3]dioxol-5-yl)-N-(2-((3,4-dihydroisoquinolin-2(1H)-yl)sulfonyl)ethyl)acrylamide
CAS 941956-55-4C21H22N2O5S
N-((5-(Dimethylamino)-1-naphthyl)sulphonyl)-L-tyrosine
CAS 52107-47-8C21H22N2O5S
2-(N-(4-Ethoxyphenyl)sulfonylanilino)-N-(furan-2-ylmethyl)acetamide
CAS 433238-76-7C21H22N2O5S
![3,4,5-Trimethoxy-N-[4-(4-methoxyphenyl)-5-methyl-1,3-thiazol-2-yl]benzamide chemical structure, C21H22N2O5S, CAS 333433-14-0](/s/OUVHJAGRVLCSNX-UHFFFAOYSA-N.svg)
3,4,5-Trimethoxy-N-[4-(4-methoxyphenyl)-5-methyl-1,3-thiazol-2-yl]benzamide
CAS 333433-14-0C21H22N2O5S
- N-(3,4-Dimethoxyphenyl)-2-[methylsulfonyl(naphthalen-1-yl)amino]acetamide335416-33-6C21H22N2O5S
- Ethyl 4-(4-methylphenyl)-2-oxo-6-[(phenylsulfonyl)methyl]-1,2,3,4-tetrahydropyrimidine-5-carboxylate902277-65-0C21H22N2O5S
- 1-(Benzo[d][1,3]dioxole-5-carbonyl)-N-cyclopentylindoline-5-sulfonamide919019-83-3C21H22N2O5S
- N-(2,5-Dimethoxyphenyl)-2-[methylsulfonyl(naphthalen-1-yl)amino]acetamide335415-14-0C21H22N2O5S
- Propyl 2-[(3-{4-nitrophenyl}acryloyl)amino]-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate550306-47-3C21H22N2O5S
- Methyl 2-[(3-{4-nitrophenyl}acryloyl)amino]-4,5,6,7,8,9-hexahydrocycloocta[b]thiophene-3-carboxylate560103-46-0C21H22N2O5S
- Dansyl-L-tyrosine119945-56-1C21H22N2O5S
- 5-[4-[2-[5-(2-Methyl-1,3-dioxolan-2-yl)-2-pyridyl]ethoxy]benzyl]-2,4-thiazolidinedione184766-66-3C21H22N2O5S
- (5Z)-1-(1,1-Dioxothiolan-3-yl)-4-methyl-2,6-dioxo-5-[(4-propoxyphenyl)methylidene]pyridine-3-carbonitrile877785-25-6C21H22N2O5S
- (3-((4-Methylbenzo[d]thiazol-2-yl)oxy)azetidin-1-yl)(3,4,5-trimethoxyphenyl)methanone1396628-51-5C21H22N2O5S
- Isopropyl 4-{[3-cyano-6-(3,4-dimethoxyphenyl)pyridin-2-yl]sulfanyl}-3-oxobutanoate488730-94-5C21H22N2O5S
- Isobutyl 2-{[(6,8-dimethyl-4-oxo-4H-chromen-2-yl)carbonyl]amino}-4-methyl-1,3-thiazole-5-carboxylate896807-84-4C21H22N2O5S
- N-[4-Ethoxy-2-(naphthalen-2-ylsulfonylamino)phenyl]-2-hydroxypropanamide717878-82-5C21H22N2O5S
- (Z)-N-(6-Ethoxy-3-(2-methoxyethyl)benzo[d]thiazol-2(3H)-ylidene)-2,3-dihydrobenzo[b][1,4]dioxine-6-carboxamide865161-91-7C21H22N2O5S
- 4-(2,3-Dihydrobenzo[b][1,4]dioxine-6-carbonyl)-1-(2-(dimethylamino)ethyl)-3-hydroxy-5-(thiophen-2-yl)-1H-pyrrol-2(5H)-one618405-02-0C21H22N2O5S
- 6-Ethyl 3-methyl 2-cinnamamido-4,5-dihydrothieno[2,3-c]pyridine-3,6(7H)-dicarboxylate864926-13-6C21H22N2O5S
- 1-(4-Butoxybenzoyl)-3-(4-methylphenyl)sulfonylimidazol-2-one950320-67-9C21H22N2O5S
- 4-[(9,10-Dioxoanthracen-2-yl)sulfonyl-methylamino]-N,N-dimethylbutanamide941924-58-9C21H22N2O5S
- Ethyl 2-[[4-methoxybenzenesulfonyl](2-quinolinylmethyl)amino]acetate161315-29-3C21H22N2O5S
- 4-(2,3-Dihydro-1,4-benzodioxin-6-ylsulfonyl)-N-(2-methylpropyl)-2-phenyl-1,3-oxazol-5-amine941236-25-5C21H22N2O5S
- 6-(((1-Methyl-1H-imidazol-2-yl)thio)methyl)-4-oxo-4H-pyran-3-yl 4-butoxybenzoate896307-84-9C21H22N2O5S
- Ethyl 2-(4-methyl-2-oxo-N-(p-tolyl)-1,2-dihydroquinoline-6-sulfonamido)acetate899998-56-2C21H22N2O5S
- 4-(2,5-Dioxopyrrolidin-1-yl)-N-((2-methoxy-2,3-dihydro-1H-inden-2-yl)methyl)benzenesulfonamide2034347-36-7C21H22N2O5S
- 3,6-Dimethyl-N-[4-(morpholin-4-ylsulfonyl)phenyl]-1-benzofuran-2-carboxamide823827-49-2C21H22N2O5S
- 3,5-Dimethyl-N-[4-(morpholin-4-ylsulfonyl)phenyl]-1-benzofuran-2-carboxamide620585-51-5C21H22N2O5S
- (Z)-Ethyl 2-(2-cyano-3-(3,4-dimethoxyphenyl)acrylamido)-4,5-dimethylthiophene-3-carboxylate300813-49-4C21H22N2O5S
- Ethyl 2-{2-oxo-1-azatricyclo[7.3.1.0^{5,13}]trideca-5,7,9(13)-triene-7-sulfonamido}benzoate898464-78-3C21H22N2O5S
- A-Glucosidase-IN-793068686-30-3C21H22N2O5S
- (Z)-N-(3-Allyl-4-methoxybenzo[d]thiazol-2(3H)-ylidene)-3,4,5-trimethoxybenzamide868376-07-2C21H22N2O5S
- 2-(6-Methyl-1-benzofuran-3-yl)-N-[4-(morpholin-4-ylsulfonyl)phenyl]acetamide785822-35-7C21H22N2O5S
- (Z)-N-(3-Allyl-6-methoxybenzo[d]thiazol-2(3H)-ylidene)-3,4,5-trimethoxybenzamide942011-62-3C21H22N2O5S
- (E)-Ethyl 2-(3-(3-nitrophenyl)acrylamido)-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-3-carboxylate397290-66-3C21H22N2O5S
- 2-(2,3-Dihydro-1H-indol-1-yl)-2-oxoethyl 2-[2-(4-methylphenyl)ethenesulfonamido]acetate852560-47-5C21H22N2O5S
- 1-(2,3-Dihydro-1H-indol-1-yl)-1-oxopropan-2-yl 2-(2-phenylethenesulfonamido)acetate849008-02-2C21H22N2O5S
- Methyl 2-[2-(3,5-dimethoxybenzoyl)imino-5,7-dimethyl-1,3-benzothiazol-3-yl]acetate1321869-95-7C21H22N2O5S
- Methyl 2-[2-(2,4-dimethoxybenzoyl)imino-5,7-dimethyl-1,3-benzothiazol-3-yl]acetate1321691-97-7C21H22N2O5S
- Methyl 2-[2-(3,4-dimethoxybenzoyl)imino-5,7-dimethyl-1,3-benzothiazol-3-yl]acetate1321896-89-2C21H22N2O5S
- N-(1-Cyclopropanecarbonyl-1,2,3,4-tetrahydroquinolin-6-yl)-2,3-dihydro-1,4-benzodioxine-6-sulfonamide946257-97-2C21H22N2O5S
- Ethyl 4-{2-oxo-1-azatricyclo[7.3.1.0^{5,13}]trideca-5,7,9(13)-triene-7-sulfonamido}benzoate898438-70-5C21H22N2O5S
- N-(1-(Cyclopropanecarbonyl)-1,2,3,4-tetrahydroquinolin-7-yl)-2,3-dihydrobenzo[b][1,4]dioxine-6-sulfonamide898465-66-2C21H22N2O5S
- 3-(2-Hydroxyethyl)-6,6-dimethyl-1-phenacyl-5,8-dihydropyrano[2,3]thieno[2,4-b]pyrimidine-2,4-dione903861-65-4C21H22N2O5S
- 2-(5-Methyl-1-benzofuran-3-yl)-N-[4-(morpholin-4-ylsulfonyl)phenyl]acetamide879932-77-1C21H22N2O5S
- 1-(2,3-Dihydro-1,4-benzodioxine-2-carbonyl)-4-(2-phenylethenesulfonyl)piperazine930752-66-2C21H22N2O5S
- 6-{[4-(2-Ethoxyphenyl)piperazinyl]sulfonyl}chromen-2-one929394-26-3C21H22N2O5S
- N-(2-Hydroxy-5-methylphenyl)-4-methyl-2-(3,4,5-trimethoxyphenyl)-1,3-thiazole-5-carboxamide951967-99-0C21H22N2O5S
- Ethyl 2-{3-methyl-2-oxo-1-azatricyclo[6.3.1.0^{4,12}]dodeca-4,6,8(12)-triene-6-sulfonamido}benzoate898411-66-0C21H22N2O5S
- N-Ethyl-4-(N-methyl-9,10-dioxo-9,10-dihydroanthracene-2-sulfonamido)butanamide941951-42-4C21H22N2O5S
- 2-Amino-5-(1,3-dioxo-1,3-dihydro-isoindol-2-ylmethyl)-4,7-dihydro-5H-thieno[2,3-c]pyran-3-carboxylic acid tert-butyl ester243968-15-2C21H22N2O5S
- (1-(Benzo[d][1,3]dioxol-5-ylmethyl)-2-((3,5-dimethoxybenzyl)thio)-1H-imidazol-5-yl)methanol921525-48-6C21H22N2O5S
- 4-[2-(4-Acetamidophenyl)ethenyl]-1-methylquinolin-1-ium methyl sulfate100023-32-3C21H22N2O5S
- N-[2-(2,3-Dihydro-1-benzofuran-5-yl)-2-hydroxyethyl]-11-oxo-1-azatricyclo[6.3.1.0^{4,12}]dodeca-4(12),5,7-triene-6-sulfonamide1705041-77-5C21H22N2O5S
- N-(1-(2,3-Dihydrobenzofuran-5-yl)propan-2-yl)-4-(2,5-dioxopyrrolidin-1-yl)benzenesulfonamide2034599-23-8C21H22N2O5S
- N-(2-(Furan-3-yl)-2-thiomorpholinoethyl)-8-methoxy-2-oxo-2H-chromene-3-carboxamide2034513-84-1C21H22N2O5S
- (7-Methoxy-2-oxo-2H-chromen-4-yl)methyl 3-[4,6-dimethyl-2-(methylsulfanyl)pyrimidin-5-yl]propanoate1110927-92-8C21H22N2O5S
- (5-Phenylisoxazol-3-yl)methyl 4-(N,N-diethylsulfamoyl)benzoate953242-39-2C21H22N2O5S
- Ethyl 6-[(4-methylbenzenesulfonyl)methyl]-2-oxo-4-phenyl-1,2,3,4-tetrahydropyrimidine-5-carboxylate866349-07-7C21H22N2O5S
- N-{3-[(4-Methoxyphenyl)sulfonyl]-4,5-dimethyl-1-(prop-2-en-1-yl)-1H-pyrrol-2-yl}furan-2-carboxamide951925-76-1C21H22N2O5S
- Ethyl 4-[3-(3,4-dimethoxyphenyl)prop-2-enoylcarbamothioylamino]benzoate6978-73-0C21H22N2O5S
- 1-(2,3-Dihydro-1,4-benzodioxine-6-carbonyl)-4-(2-phenylethenesulfonyl)piperazine851415-78-6C21H22N2O5S
- Benzamide, N-(5-butylidene-2-(3-hydroxy-4-methoxyphenyl)-4-oxo-3-thiazolidinyl)-2-hydroxy-99541-57-8C21H22N2O5S
- N-(1,3-Dioxaindan-5-yl)-1-(2-phenylethenesulfonyl)piperidine-4-carboxamide1083183-34-9C21H22N2O5S
- Ethyl 4-[4-(cyclopropylsulfonyl)phenoxy]-2-ethyl-2H-indazole-6-carboxylate1245216-22-1C21H22N2O5S
- N-(1,1-Dioxido-1,2-benzisothiazol-3-yl)-L-alanine 2-oxo-2-(4-propylphenyl)ethyl ester1004950-20-2C21H22N2O5S
- N,N-Bis(4-methoxybenzyl)-2-oxo-1,2-dihydropyridine-3-sulfonamide2260974-44-3C21H22N2O5S
- N,N-Bis(4-methoxybenzyl)-2-oxo-1,2-dihydropyridine-4-sulfonamide2260974-41-0C21H22N2O5S
- N-[2,2-Bis(furan-2-yl)ethyl]-4-(pyrrolidine-1-sulfonyl)benzamide2415453-48-2C21H22N2O5S
- Methyl 4-({[3-(2-methoxybenzoyl)-1,3-thiazolidine-4-carbonyl]amino}methyl)benzoate2321300-00-7C21H22N2O5S
- 3-(2-(3,4-Dimethoxyphenyl)ethyl)-4-oxo-2-(phenylimino)-5-thiazolidineacetic acid67931-64-0C21H22N2O5S
- N-{2-[4-(Morpholine-4-sulfonyl)phenyl]ethyl}-1-benzofuran-2-carboxamide90141-29-0C21H22N2O5S
- (2R)-2-[5-(Dimethylamino)naphthalene-1-sulfonamido]-3-(4-hydroxyphenyl)propanoic acid109527-34-6C21H22N2O5S
- 2-(Tosyloxy)ethyl (R)-1-(1-phenylethyl)-1H-imidazole-5-carboxylate960403-11-6C21H22N2O5S
- 5-[4-[2-[5-(2-Methyl-1,3-dioxolan-2-yl)-2-pyridinyl]ethoxy-d4]benzyl]-2,4-thiazolidinedione1189460-98-7C21H22N2O5S
- 2-(2-{[2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)ethyl]sulfanyl}acetamido)acetic acid2172210-06-7C21H22N2O5S
- 2-({2-[2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)acetamido]ethyl}sulfanyl)acetic acid2172492-88-3C21H22N2O5S
- Methyl 4-[[2-(dimethylamino)-4-quinolinyl][(methylsulfonyl)oxy]methyl]benzoate461665-99-6C21H22N2O5S
- (2S)-2-Amino-3-[4-[5-(dimethylamino)naphthalen-1-yl]sulfonyloxyphenyl]propanoic acidC21H22N2O5S
Frequently asked questions
What is the molar mass of C21H22N2O5S?
The molar mass of C21H22N2O5S is 414.48 g/mol, calculated from standard atomic weights for 21 carbon atoms, 22 hydrogen atoms, 2 nitrogen atoms, 5 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 418.1501 Da.
How many compounds have the formula C21H22N2O5S?
CompoundList lists 104 compounds with the molecular formula C21H22N2O5S, including Nafcillin, S-((Acetylamino)methyl)-N-((9H-fluoren-9-ylmethoxy)carbonyl)-L-cysteine, Ethyl 2-{[N-(2-furylmethyl)glycyl]amino}-4-(4-methoxyphenyl)-3-thiophenecarboxylate. 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 C21H22N2O5S?
C21H22N2O5S has a degree of unsaturation of 12. 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.