Molecular formula
C20H18N2O4S
182 compounds have this formula on CompoundList.
- Molar mass
- 382.43g/mol
- Monoisotopic mass
- 382.0987Da
- Atoms
- 45
- Elements
- 5
- Rings plus double bonds
- 13
The formula C20H18N2O4S describes a molecule made of 20 carbon atoms, 18 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 × 2062.81%12.011 × 20 = 240.220 g/mol
- H Hydrogen × 184.74%1.008 × 18 = 18.144 g/mol
- N Nitrogen × 27.33%14.007 × 2 = 28.014 g/mol
- O Oxygen × 416.73%15.999 × 4 = 63.996 g/mol
- S Sulfur × 18.38%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C20H18N2O4S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 182 compounds
![1-(4-Methoxyphenyl)-4-[(4-methylphenyl)thio]-6-oxo-3-pyridazinecarboxylic acid methyl ester chemical structure, C20H18N2O4S, CAS 338395-97-4](/s/DGMPKQJUJSNOBV-UHFFFAOYSA-N.svg)
1-(4-Methoxyphenyl)-4-[(4-methylphenyl)thio]-6-oxo-3-pyridazinecarboxylic acid methyl ester
CAS 338395-97-4C20H18N2O4S
![2-(4-Formylphenoxy)acetic acid [2-(4-methylanilino)-4-thiazolyl]methyl ester chemical structure, C20H18N2O4S, CAS 756845-94-0](/s/XPDAVXLVGXYYMR-UHFFFAOYSA-N.svg)
2-(4-Formylphenoxy)acetic acid [2-(4-methylanilino)-4-thiazolyl]methyl ester
CAS 756845-94-0C20H18N2O4S
![1-Ethyl-N-(2-methoxyphenyl)-2-oxo-1,2-dihydrobenzo[cd]indole-6-sulfonamide chemical structure, C20H18N2O4S, CAS 438488-77-8](/s/NRIPCAUCAUVABP-UHFFFAOYSA-N.svg)
1-Ethyl-N-(2-methoxyphenyl)-2-oxo-1,2-dihydrobenzo[cd]indole-6-sulfonamide
CAS 438488-77-8C20H18N2O4S
![N'-(1,2-Dihydronaphtho[2,1-b]furan-2-ylcarbonyl)-4-methylbenzenesulfonohydrazide chemical structure, C20H18N2O4S, CAS 478064-25-4](/s/YXBKTUIUENZVFM-UHFFFAOYSA-N.svg)
N'-(1,2-Dihydronaphtho[2,1-b]furan-2-ylcarbonyl)-4-methylbenzenesulfonohydrazide
CAS 478064-25-4C20H18N2O4S
![N-[3-[(2-Methoxyphenyl)carbamoyl]-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl]furan-2-carboxamide chemical structure, C20H18N2O4S, CAS 329935-27-5](/s/HUQSCHCMTTYOIN-UHFFFAOYSA-N.svg)
N-[3-[(2-Methoxyphenyl)carbamoyl]-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl]furan-2-carboxamide
CAS 329935-27-5C20H18N2O4S
(E)-4-(2-((4-Methoxyphenyl)sulfonamido)styryl)pyridine 1-oxide
CAS 173529-10-7C20H18N2O4S
![Methyl 4-{[(phenylsulfonyl)(2-pyridinyl)amino]methyl}benzoate chemical structure, C20H18N2O4S, CAS 331750-23-3](/s/NXSFQHNKHVQUNQ-UHFFFAOYSA-N.svg)
Methyl 4-{[(phenylsulfonyl)(2-pyridinyl)amino]methyl}benzoate
CAS 331750-23-3C20H18N2O4S
(E)-4-(2-(2-(N-((p-Methoxyphenyl)sulfonyl)amino)phenyl)ethenyl)pyridine 1-oxide
C20H18N2O4S
![N-[3-[(2,6-Dimethoxybenzoyl)amino]phenyl]thiophene-2-carboxamide chemical structure, C20H18N2O4S, CAS 702649-76-1](/s/UMOPHGRVWZPRQN-UHFFFAOYSA-N.svg)
N-[3-[(2,6-Dimethoxybenzoyl)amino]phenyl]thiophene-2-carboxamide
CAS 702649-76-1C20H18N2O4S
![2-[N-(Benzenesulfonyl)-4-phenoxyanilino]acetamide chemical structure, C20H18N2O4S, CAS 713499-79-7](/s/VFUKGSYOIMPIAS-UHFFFAOYSA-N.svg)
2-[N-(Benzenesulfonyl)-4-phenoxyanilino]acetamide
CAS 713499-79-7C20H18N2O4S
![N-[(6-Hydroxynaphthalen-1-yl)carbamothioyl]-3,4-dimethoxybenzamide chemical structure, C20H18N2O4S, CAS 831240-14-3](/s/AUCJHGXELXJHJD-UHFFFAOYSA-N.svg)
N-[(6-Hydroxynaphthalen-1-yl)carbamothioyl]-3,4-dimethoxybenzamide
CAS 831240-14-3C20H18N2O4S
![N-[(E)-3-(Furan-2-ylmethylamino)-1-(4-methylsulfanylphenyl)-3-oxoprop-1-en-2-yl]furan-2-carboxamide chemical structure, C20H18N2O4S, CAS 693238-26-5](/s/APEJTFIMDHDEBS-SFQUDFHCSA-N.svg)
N-[(E)-3-(Furan-2-ylmethylamino)-1-(4-methylsulfanylphenyl)-3-oxoprop-1-en-2-yl]furan-2-carboxamide
CAS 693238-26-5C20H18N2O4S
![(Z)-N-(3-Allyl-4-methoxybenzo[d]thiazol-2(3H)-ylidene)-2,3-dihydrobenzo[b][1,4]dioxine-2-carboxamide chemical structure, C20H18N2O4S, CAS 868376-72-1](/s/PCHUXFVHFOCGPU-UHFFFAOYSA-N.svg)
(Z)-N-(3-Allyl-4-methoxybenzo[d]thiazol-2(3H)-ylidene)-2,3-dihydrobenzo[b][1,4]dioxine-2-carboxamide
CAS 868376-72-1C20H18N2O4S
![N-[4-(2,3-Dihydro-1H-indol-1-ylsulfonyl)phenyl]-5-methyl-2-furamide chemical structure, C20H18N2O4S, CAS 717855-75-9](/s/KTPVZAAOZCLGTA-UHFFFAOYSA-N.svg)
N-[4-(2,3-Dihydro-1H-indol-1-ylsulfonyl)phenyl]-5-methyl-2-furamide
CAS 717855-75-9C20H18N2O4S
![[3-(3,4-Dimethoxyphenyl)-5-thiophen-2-yl-3,4-dihydropyrazol-2-yl]-(furan-2-yl)methanone chemical structure, C20H18N2O4S, CAS 836625-35-5](/s/GHSNRIDSNNBBFP-UHFFFAOYSA-N.svg)
[3-(3,4-Dimethoxyphenyl)-5-thiophen-2-yl-3,4-dihydropyrazol-2-yl]-(furan-2-yl)methanone
CAS 836625-35-5C20H18N2O4S
![N-{4-[(4-Phenoxyphenyl)sulfamoyl]phenyl}acetamide chemical structure, C20H18N2O4S, CAS 315248-48-7](/s/VWBDEKYQTPZDSY-UHFFFAOYSA-N.svg)
N-{4-[(4-Phenoxyphenyl)sulfamoyl]phenyl}acetamide
CAS 315248-48-7C20H18N2O4S
![[5-(3,4-Dimethoxyphenyl)-3-thiophen-2-yl-3,4-dihydropyrazol-2-yl]-(furan-2-yl)methanone chemical structure, C20H18N2O4S, CAS 836635-03-1](/s/VPOLIMOEDUCSLJ-UHFFFAOYSA-N.svg)
[5-(3,4-Dimethoxyphenyl)-3-thiophen-2-yl-3,4-dihydropyrazol-2-yl]-(furan-2-yl)methanone
CAS 836635-03-1C20H18N2O4S
3-(3-Phenylureido)phenyl 4-methylbenzenesulfonate
CAS 2102522-55-2C20H18N2O4S
![(NZ)-N-[(6E)-6-[2-(1-hydroxy-4-pyridinylidene)ethylidene]cyclohexa-2,4-dien-1-ylidene]-4-methoxybenzenesulfonamide chemical structure, C20H18N2O4S](/s/MYEJOKLXXLVMPR-RPBJWCAZSA-N.svg)
(NZ)-N-[(6E)-6-[2-(1-hydroxy-4-pyridinylidene)ethylidene]cyclohexa-2,4-dien-1-ylidene]-4-methoxybenzenesulfonamide
C20H18N2O4S
![N-[(6E)-6-[2-(1-Hydroxy-4-pyridinylidene)ethylidene]cyclohexa-2,4-dien-1-ylidene]-4-methoxybenzenesulfonamide chemical structure, C20H18N2O4S](/s/MYEJOKLXXLVMPR-XCRZMLCFSA-N.svg)
N-[(6E)-6-[2-(1-Hydroxy-4-pyridinylidene)ethylidene]cyclohexa-2,4-dien-1-ylidene]-4-methoxybenzenesulfonamide
C20H18N2O4S
N-(3-Carbamoyl-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)-7-methyl-4-oxo-4H-chromene-2-carboxamide
CAS 873081-46-0C20H18N2O4S
Ethyl 4-(4-methoxyphenyl)-2-(nicotinamido)thiophene-3-carboxylate
CAS 315696-85-6C20H18N2O4S
![N-(3-Carbamoyl-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophen-2-yl)-2-oxo-2H-chromene-3-carboxamide chemical structure, C20H18N2O4S, CAS 477494-49-8](/s/VPNZHBJUAGUDAU-UHFFFAOYSA-N.svg)
N-(3-Carbamoyl-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophen-2-yl)-2-oxo-2H-chromene-3-carboxamide
CAS 477494-49-8C20H18N2O4S
![2-[(4-Phenoxybenzoyl)-propan-2-ylamino]-1,3-thiazole-5-carboxylic acid chemical structure, C20H18N2O4S, CAS 827038-41-5](/s/JNSFZDJLXUZMFH-UHFFFAOYSA-N.svg)
2-[(4-Phenoxybenzoyl)-propan-2-ylamino]-1,3-thiazole-5-carboxylic acid
CAS 827038-41-5C20H18N2O4S
- 2-[(4-Phenoxybenzoyl)-propan-2-ylamino]-1,3-thiazole-4-carboxylic acid827038-53-9C20H18N2O4S
- 3-(Benzyloxy)-N-(4-sulfamoylphenyl)benzamide347336-49-6C20H18N2O4S
- Ethyl 2-(3-methoxybenzamido)-4-phenylthiazole-5-carboxylate313240-44-7C20H18N2O4S
- 2-((3-(Methylthio)phenyl)amino)-2-oxoethyl 3-acetylindolizine-1-carboxylate899998-23-3C20H18N2O4S
- N-(4-(Methylsulfonyl)phenyl)-1-(5-phenylisoxazol-3-yl)cyclopropanecarboxamide1334372-75-6C20H18N2O4S
- 3-(2,5-Dimethoxyphenethyl)-2-thioxo-2,3-dihydrobenzofuro[3,2-d]pyrimidin-4(1H)-one892287-35-3C20H18N2O4S
- N-(5-Acetyl-4-phenyl-1,3-thiazol-2-yl)-2,3-dimethoxybenzamide896010-79-0C20H18N2O4S
- Methyl 4-{[4-(4-methoxy-3-methylphenyl)-1,3-thiazol-2-yl]carbamoyl}benzoate477548-67-7C20H18N2O4S
- N-[1-(Furan-2-carbonyl)-1,2,3,4-tetrahydroquinolin-6-yl]benzenesulfonamide946246-76-0C20H18N2O4S
- N-(1-(Furan-2-carbonyl)indolin-6-yl)-1-phenylmethanesulfonamide1040661-97-9C20H18N2O4S
- 9-Ethoxy-2-(2-hydroxy-3-methoxyphenyl)-3H-chromeno[2,3-d]pyrimidine-4(5H)-thione866865-70-5C20H18N2O4S
- (Z)-Methyl 4-((3-allyl-4-methoxybenzo[d]thiazol-2(3H)-ylidene)carbamoyl)benzoate868376-51-6C20H18N2O4S
- N-[3-(Methylcarbamoyl)-4,5,6,7-tetrahydro-1-benzothiophen-2-yl]-4-oxochromene-3-carboxamide892980-36-8C20H18N2O4S
- 4-(tert-Butyl)phenyl 6-diazo-5,6-dihydro-5-oxonaphthalene-1-sulphonate31600-99-4C20H18N2O4S
- N-(1,3-Benzodioxol-5-yl)-2-(7-methoxy-4-methylquinolin-2-yl)sulfanylacetamide301683-81-8C20H18N2O4S
- Ethyl 2-{2-[(4-methoxybenzoyl)amino]-1,3-thiazol-4-yl}benzenecarboxylate339010-11-6C20H18N2O4S
- 1-Ethyl-N-(3-methoxyphenyl)-2-oxo-1,2-dihydrobenzo[cd]indole-6-sulfonamide438488-75-6C20H18N2O4S
- Methyl 3-{2-[2-oxo-2-(1-pyrrolidinyl)acetyl]-1H-pyrrol-1-yl}-1-benzothiophene-2-carboxylate477863-37-9C20H18N2O4S
- Benzenesulfonamide, 4-methyl-N-(4-nitrophenyl)-N-(phenylmethyl)-22019-64-3C20H18N2O4S
- N-[5-(4-Methoxybenzyl)-1,3-thiazol-2-yl]-2,3-dihydro-1,4-benzodioxine-6-carboxamide878692-52-5C20H18N2O4S
- N-[4-(Acetylsulfamoyl)phenyl]-2-naphthalen-1-ylacetamide496011-16-6C20H18N2O4S
- N-[2-Methoxy-5-[(2-phenylsulfanylacetyl)amino]phenyl]furan-2-carboxamide518008-32-7C20H18N2O4S
- Ethyl 2-(2-phenoxyacetamido)-4-phenylthiazole-5-carboxylate313469-62-4C20H18N2O4S
- (2Z)-2-[(4-Hydroxy-3,5-dimethoxyphenyl)methylidene]-5,6-dimethyl-[1,3]thiazolo[3,2-a]benzimidazol-1-one312518-39-1C20H18N2O4S
- Ethyl (2-{[(2-phenoxyphenyl)carbonyl]amino}-1,3-thiazol-4-yl)acetate349440-77-3C20H18N2O4S
- N-(3-Carbamoyl-6-methyl-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)-2-oxo-2H-chromene-3-carboxamide302950-35-2C20H18N2O4S
- N-(3-Carbamoyl-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophen-2-yl)-4-oxochromene-2-carboxamide397290-12-9C20H18N2O4S
- 2-(2,4-Dioxo-5-(2-oxo-2-phenylethyl)thiazolidin-3-yl)-N-(p-tolyl)acetamide868152-87-8C20H18N2O4S
- 2-[2,4-Dioxo-3-(2-oxo-2-phenylethyl)-1,3-thiazolidin-5-yl]-N-(3-methylphenyl)acetamide878990-12-6C20H18N2O4S
- 2-{[(4E)-1-Benzyl-4-[(4-methoxyphenyl)methylidene]-5-oxo-4,5-dihydro-1H-imidazol-2-yl]sulfanyl}acetic acidC20H18N2O4S
- N-[[2-Methoxy-5-(2-oxochromen-3-yl)phenyl]carbamothioyl]propanamide792946-04-4C20H18N2O4S
- 2-[(5Z)-5-(3-Methoxybenzylidene)-2,4-dioxo-1,3-thiazolidin-3-yl]-N-(4-methylphenyl)acetamide430470-73-8C20H18N2O4S
- 2-(Benzenesulfonamido)-N-(4-methoxyphenyl)benzamide825660-35-3C20H18N2O4S
- N-{4-[(2-Phenoxyphenyl)sulfamoyl]phenyl}acetamide432015-90-2C20H18N2O4S
- Ethyl 4-methyl-2-(2-phenoxybenzamido)thiazole-5-carboxylate328539-60-2C20H18N2O4S
- N-(3-Carbamoyl-6-methyl-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)-4-oxo-4H-chromene-2-carboxamide443329-43-9C20H18N2O4S
- Ethyl 2-(2-methoxybenzamido)-4-phenylthiazole-5-carboxylate326017-61-2C20H18N2O4S
- Ethyl 2-(4-methoxybenzamido)-4-phenylthiazole-5-carboxylate312929-39-8C20H18N2O4S
- 2-[2,4-Dioxo-3-(2-oxo-2-phenylethyl)-1,3-thiazolidin-5-yl]-N-(2-methylphenyl)acetamide878990-09-1C20H18N2O4S
- 2-[2,4-Dioxo-3-(2-oxo-2-phenylethyl)-1,3-thiazolidin-5-yl]-N-(4-methylphenyl)acetamide878990-15-9C20H18N2O4S
- N-(8H-Indeno[1,2-d]thiazol-2-yl)-3,4,5-trimethoxybenzamide681158-09-8C20H18N2O4S
- 4-Butylphenyl 6-diazo-5,6-dihydro-5-oxonaphthalene-1-sulphonate94349-48-1C20H18N2O4S
- [6-[(4-Methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 3,5-dimethylbenzoate877635-35-3C20H18N2O4S
- N-[1-(Benzenesulfonyl)-3,4-dihydro-2H-quinolin-6-yl]furan-2-carboxamide941929-47-1C20H18N2O4S
- N-(Benzo[d][1,3]dioxol-5-yl)-2-((5-(3,4-dimethylphenyl)oxazol-2-yl)thio)acetamide1021254-63-6C20H18N2O4S
- N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-2-((5-methoxyisoquinolin-1-yl)thio)acetamide1203034-78-9C20H18N2O4S
- N-(4-(2-Methoxyphenoxy)but-2-yn-1-yl)quinoline-8-sulfonamide1428364-26-4C20H18N2O4S
- N-(Furan-3-ylmethyl)-2-(2-oxobenzo[d]oxazol-3(2H)-yl)-N-(2-(thiophen-2-yl)ethyl)acetamide1421455-94-8C20H18N2O4S
- N-(4-Benzamido-2,5-dimethoxyphenyl)thiophene-2-carboxamide289661-33-2C20H18N2O4S
- 3-{[5-(4-Methoxy-3-methylbenzylidene)-3-methyl-4-oxo-1,3-thiazolidin-2-ylidene]amino}benzoic acid443872-80-8C20H18N2O4S
- Propan-2-yl 4-{[(1-benzofuran-2-ylcarbonyl)carbamothioyl]amino}benzoate432526-60-8C20H18N2O4S
- 2-(3,4,5-Trimethoxyphenyl)-1,5-dihydrochromeno[2,3-d]pyrimidine-4-thione97146-34-4C20H18N2O4S
- Propyl 4-{[(1-benzofuran-2-ylcarbonyl)carbamothioyl]amino}benzoate429621-09-0C20H18N2O4S
- [2-[[4-(4-Methoxyphenyl)-1,3-thiazol-2-yl]amino]-2-oxo-1-phenylethyl] acetate6223-41-2C20H18N2O4S
- N-[3-(Methylcarbamoyl)-4,5,6,7-tetrahydro-1-benzothiophen-2-yl]-4-oxo-4H-chromene-2-carboxamide880784-91-8C20H18N2O4S
- [6-[(4,6-Dimethylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 2-methylbenzoate877635-27-3C20H18N2O4S
- [6-[(4,6-Dimethylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 3-methylbenzoate877635-30-8C20H18N2O4S
- [6-[(4,6-Dimethylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 4-methylbenzoate877635-33-1C20H18N2O4S
- [6-[(4-Methylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 3,4-dimethylbenzoate877635-38-6C20H18N2O4S
- [6-[(4,6-Dimethylpyrimidin-2-yl)sulfanylmethyl]-4-oxopyran-3-yl] 2-phenylacetate877637-30-4C20H18N2O4S
- 1-(4-Methoxyphenyl)-3-((2-(4-methoxyphenyl)-2-oxoethyl)thio)pyrazin-2(1H)-one895110-43-7C20H18N2O4S
- 4-Oxo-6-((pyrimidin-2-ylthio)methyl)-4H-pyran-3-yl 2-phenylbutanoate877637-54-2C20H18N2O4S
- 2-(2-(Furan-2-yl)-4-oxo-3,4-dihydrobenzo[b][1,4]thiazepin-5(2H)-yl)-N-(furan-2-ylmethyl)acetamide863005-25-8C20H18N2O4S
- Butyl 4-(2-cyano-1,1-dioxido-4H-1,4-benzothiazin-4-yl)benzoate1207023-06-0C20H18N2O4S
- N-(4-Methyl-1,3-thiazol-2-yl)-2-(3,5,9-trimethyl-7-oxo-7H-furo[3,2-g]chromen-6-yl)acetamide1219580-94-5C20H18N2O4S
- 4-[({[2-(3-Methoxyphenyl)-4-methyl-1,3-thiazol-5-yl]carbonyl}amino)methyl]benzoic acid1219586-68-1C20H18N2O4S
- 3-{[4-(1H-Indol-3-yl)-1,2,3,6-tetrahydropyridin-1-yl]sulfonyl}benzoic acid1432681-64-5C20H18N2O4S
- 4-Methyl-N-[(4-nitrophenyl)methyl]-N-phenylbenzenesulfonamide1171-92-2C20H18N2O4S
- N-(4-Ethoxyphenyl)-1-methyl-2-oxo-1,2-dihydrobenzo[cd]indole-6-sulfonamide714263-06-6C20H18N2O4S
- 2-(Benzenesulfonamido)-N-(2-methoxyphenyl)benzamide713106-67-3C20H18N2O4S
- (e)-2-((1-Benzyl-4-(4-methoxybenzylidene)-5-oxo-4,5-dihydro-1H-imidazol-2-yl)thio)acetic acid730949-60-7C20H18N2O4S
- N-[4-(4-Ethoxyphenyl)-1,3-thiazol-2-yl]-2,3-dihydro-1,4-benzodioxine-6-carboxamide477551-06-7C20H18N2O4S
- N-[4-(4-Methoxyphenyl)-5-methyl-1,3-thiazol-2-yl]-2,3-dihydro-1,4-benzodioxine-6-carboxamide536734-03-9C20H18N2O4S
- N-[4-(4-Methoxy-3-methylphenyl)-1,3-thiazol-2-yl]-2,3-dihydro-1,4-benzodioxine-6-carboxamide477551-02-3C20H18N2O4S
- N-(3-Carbamoyl-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)-6-methyl-4-oxo-4H-chromene-2-carboxamide866247-56-5C20H18N2O4S
- N-[1-(Furan-2-carbonyl)-1,2,3,4-tetrahydroquinolin-7-yl]benzenesulfonamide946369-49-9C20H18N2O4S
Frequently asked questions
What is the molar mass of C20H18N2O4S?
The molar mass of C20H18N2O4S is 382.43 g/mol, calculated from standard atomic weights for 20 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms, 4 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 382.0987 Da.
How many compounds have the formula C20H18N2O4S?
CompoundList lists 182 compounds with the molecular formula C20H18N2O4S, including 1-(4-Methoxyphenyl)-4-[(4-methylphenyl)thio]-6-oxo-3-pyridazinecarboxylic acid methyl ester, 2-(4-Formylphenoxy)acetic acid [2-(4-methylanilino)-4-thiazolyl]methyl ester, 1-Ethyl-N-(2-methoxyphenyl)-2-oxo-1,2-dihydrobenzo[cd]indole-6-sulfonamide. 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 C20H18N2O4S?
C20H18N2O4S has a degree of unsaturation of 13. 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.