Molecular formula
C18H20N2O3S
453 compounds have this formula on CompoundList.
- Molar mass
- 344.43g/mol
- Monoisotopic mass
- 344.1195Da
- Atoms
- 44
- Elements
- 5
- Rings plus double bonds
- 10
The formula C18H20N2O3S describes a molecule made of 18 carbon atoms, 20 hydrogen atoms, 2 nitrogen atoms, 3 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 × 1862.77%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 205.85%1.008 × 20 = 20.160 g/mol
- N Nitrogen × 28.13%14.007 × 2 = 28.014 g/mol
- O Oxygen × 313.94%15.999 × 3 = 47.997 g/mol
- S Sulfur × 19.31%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C18H20N2O3S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 201 to 300 of 453 compounds
![2-(4-Ethoxybenzamido)-N-methyl-4H,5H,6H-cyclopenta[b]thiophene-3-carboxamide chemical structure, C18H20N2O3S, CAS 893098-99-2](/s/USTHDHCNYZNVQI-UHFFFAOYSA-N.svg)
2-(4-Ethoxybenzamido)-N-methyl-4H,5H,6H-cyclopenta[b]thiophene-3-carboxamide
CAS 893098-99-2C18H20N2O3S
N-(4-(1,1-Dioxido-1,2-thiazinan-2-yl)phenyl)-4-methylbenzamide
CAS 899979-90-9C18H20N2O3S
N-(4-(1,1-Dioxidoisothiazolidin-2-yl)phenyl)-3,5-dimethylbenzamide
CAS 941885-81-0C18H20N2O3S
![N-[4-(1,1-Dioxo-1lambda6,2-thiazolidin-2-yl)phenyl]-3-phenylpropanamide chemical structure, C18H20N2O3S, CAS 941931-87-9](/s/GQKGXDOHPXOPON-UHFFFAOYSA-N.svg)
N-[4-(1,1-Dioxo-1lambda6,2-thiazolidin-2-yl)phenyl]-3-phenylpropanamide
CAS 941931-87-9C18H20N2O3S
N-(4-(2-Oxopyrrolidin-1-yl)phenyl)-2-phenylethanesulfonamide
CAS 942012-60-4C18H20N2O3S
N-(3-(2-Oxopyrrolidin-1-yl)phenyl)-2-phenylethanesulfonamide
CAS 942013-01-6C18H20N2O3S
N-(3-(1,1-Dioxidoisothiazolidin-2-yl)phenyl)-3-phenylpropanamide
CAS 941886-29-9C18H20N2O3S
4-(1,1-Dioxothiazinan-2-yl)-N-(2-methylphenyl)benzamide
CAS 899756-83-3C18H20N2O3S
2-(1H-Benzimidazol-1-ylsulfonyl)-4,5-dimethylphenyl propyl ether
CAS 913241-44-8C18H20N2O3S
![1-((2-Ethoxy-4-methylphenyl)sulfonyl)-5,6-dimethyl-1H-benzo[d]imidazole chemical structure, C18H20N2O3S, CAS 927636-59-7](/s/UAOOVOFDPQMFNU-UHFFFAOYSA-N.svg)
1-((2-Ethoxy-4-methylphenyl)sulfonyl)-5,6-dimethyl-1H-benzo[d]imidazole
CAS 927636-59-7C18H20N2O3S
![Ethyl 4-oxo-4-[2-(2-thienyl)-1,4-dihydro-3(2H)-quinazolinyl]butanoate chemical structure, C18H20N2O3S, CAS 882747-85-5](/s/LYFBPMZPWLADOQ-UHFFFAOYSA-N.svg)
Ethyl 4-oxo-4-[2-(2-thienyl)-1,4-dihydro-3(2H)-quinazolinyl]butanoate
CAS 882747-85-5C18H20N2O3S
![N-[3-(Acetylamino)phenyl]-2-[(2-methoxyethyl)sulfanyl]benzamide chemical structure, C18H20N2O3S, CAS 895860-35-2](/s/XKPSIHGKIPHNMD-UHFFFAOYSA-N.svg)
N-[3-(Acetylamino)phenyl]-2-[(2-methoxyethyl)sulfanyl]benzamide
CAS 895860-35-2C18H20N2O3S
N-((5-Oxo-1-(p-tolyl)pyrrolidin-3-yl)methyl)benzenesulfonamide
CAS 955234-23-8C18H20N2O3S
![1-[(4-Ethoxy-3-ethylphenyl)sulfonyl]-2-methylbenzimidazole chemical structure, C18H20N2O3S, CAS 898639-02-6](/s/KXCYHROYHZMVIF-UHFFFAOYSA-N.svg)
1-[(4-Ethoxy-3-ethylphenyl)sulfonyl]-2-methylbenzimidazole
CAS 898639-02-6C18H20N2O3S
N-(1-Methyl-2-oxoindolin-5-yl)-4-propylbenzenesulfonamide
CAS 921537-02-2C18H20N2O3S
N-(1-Ethyl-2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)-3-methylbenzene-1-sulfonamide
CAS 922026-31-1C18H20N2O3S
N-(1-Ethyl-2-oxoindolin-5-yl)-1-(p-tolyl)methanesulfonamide
CAS 921861-68-9C18H20N2O3S
N-(2-(2,4-Dioxothiazolidin-3-yl)cyclohexyl)cinnamamide
CAS 942742-32-7C18H20N2O3S
N1-benzyl-N2-(2-hydroxy-2-(4-(methylthio)phenyl)ethyl)oxalamide
CAS 1448136-19-3C18H20N2O3S
N-(1-(2-Methoxyacetyl)-1,2,3,4-tetrahydroquinolin-7-yl)-2-(thiophen-3-yl)acetamide
CAS 1796959-86-8C18H20N2O3S
2-(3,5-Dimethylisoxazol-4-yl)-N-(furan-3-ylmethyl)-N-(2-(thiophen-2-yl)ethyl)acetamide
CAS 1797649-98-9C18H20N2O3S
Methyl 2-((1-(4-methylquinoline-6-carbonyl)pyrrolidin-3-yl)thio)acetate
CAS 2034527-38-1C18H20N2O3S
Methyl 2-((1-(2-methylquinoline-8-carbonyl)pyrrolidin-3-yl)thio)acetate
CAS 2034577-91-6C18H20N2O3S
N1-((2-methoxy-2,3-dihydro-1H-inden-2-yl)methyl)-N2-(thiophen-2-ylmethyl)oxalamide
CAS 2034411-56-6C18H20N2O3S
- 5-Isothiazoleglycolic acid, alpha-phenyl-, 3-quinuclidinyl ester101670-60-4C18H20N2O3S
- N-(3,4-Dimethoxybenzoyl)-N'-(2,5-dimethylphenyl)thiourea335214-13-6C18H20N2O3S
- Ethyl 4-[(4-methoxyphenyl)methylcarbamothioylamino]benzoate351165-85-0C18H20N2O3S
- N-Benzyl-2-(1,1-dioxo-1lambda~6~,4-thiazinan-4-yl)benzenecarboxamide860610-40-8C18H20N2O3S
- 4-{4-[(4-Methylphenyl)sulfanyl]-3-nitrobenzyl}morpholine477860-51-8C18H20N2O3S
- N-Benzyl-2-methyl-4-(2-oxopyrrolidin-1-yl)benzenesulfonamide695207-30-8C18H20N2O3S
- N-[4-[(2,6-Dimethylphenyl)sulfamoyl]phenyl]cyclopropanecarboxamide819804-31-4C18H20N2O3S
- 4-[Methyl-(4-methylphenyl)sulfonylamino]-N-prop-2-enylbenzamide693268-43-8C18H20N2O3S
- {[4-(Propan-2-yl)phenyl]carbamoyl}methyl 2-(methylsulfanyl)pyridine-3-carboxylate475054-87-6C18H20N2O3S
- 3-[2-(2-Phenoxyethylsulfanyl)benzimidazol-1-yl]propane-1,2-diol312604-59-4C18H20N2O3S
- N-[(2-Methoxyphenyl)carbamothioyl]-3-propoxybenzamide428843-51-0C18H20N2O3S
- Ethyl 4-{[2-(pyridin-2-ylsulfanyl)butanoyl]amino}benzoate713080-75-2C18H20N2O3S
- N-(5,5-Dimethyl-7-oxo-4,5,6,7-tetrahydro-1,3-benzothiazol-2-yl)-3-ethoxybenzamide606114-48-1C18H20N2O3S
- Ethyl 2,7-dimethyl-5-(4-methylphenyl)-3-oxo-2,3-dihydro-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate620551-22-6C18H20N2O3S
- 1-Acetyl-N-benzyl-N-methyl-2,3-dihydroindole-5-sulfonamide901234-79-5C18H20N2O3S
- Urea, N-[1,1'-biphenyl]-4-yl-N'-(tetrahydro-3-methyl-1,1-dioxido-3-thienyl)-507454-66-2C18H20N2O3S
- N-Benzyl-2-methyl-5-(2-oxopyrrolidin-1-yl)benzenesulfonamide728027-41-6C18H20N2O3S
- 2-(3-Methoxybenzamido)-N-methyl-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide892977-26-3C18H20N2O3S
- 4-(4-Acetyl-1-piperazinyl)phenyl 2-thienylacetate862886-11-1C18H20N2O3S
- N-[1-(Benzenesulfonyl)-3,4-dihydro-2H-quinolin-7-yl]propanamide1005301-67-6C18H20N2O3S
- N-[4-(1,1-Dioxothiazinan-2-yl)phenyl]-3-methylbenzamide899976-27-3C18H20N2O3S
- N-(4-(1,1-Dioxidoisothiazolidin-2-yl)phenyl)-3,4-dimethylbenzamide941974-54-5C18H20N2O3S
- N-(4-(1,1-Dioxidoisothiazolidin-2-yl)phenyl)-2-(m-tolyl)acetamide941885-87-6C18H20N2O3S
- 4-Methyl-N-[4-methyl-3-(2-oxopyrrolidin-1-yl)phenyl]benzenesulfonamide953206-47-8C18H20N2O3S
- N-(1-Tosyl-1,2,3,4-tetrahydroquinolin-6-yl)acetamide941882-44-6C18H20N2O3S
- N-Benzyl-4-(1,1-dioxothiazinan-2-yl)benzamide941992-48-9C18H20N2O3S
- 1-[(2-Methoxy-5-methylphenyl)sulfonyl]-2-benzyl-2-imidazoline873580-20-2C18H20N2O3S
- 4-tert-Butyl-N-(2-oxo-2,3-dihydro-1H-indol-5-yl)benzene-1-sulfonamide921811-92-9C18H20N2O3S
- N-[2-(Dimethylamino)-2-(furan-2-yl)ethyl]naphthalene-2-sulfonamide899955-47-6C18H20N2O3S
- 2,4,6-Trimethyl-N-(1-methyl-2-oxoindolin-5-yl)benzenesulfonamide921861-88-3C18H20N2O3S
- 2,4,5-Trimethyl-N-(1-methyl-2-oxoindolin-5-yl)benzenesulfonamide921861-97-4C18H20N2O3S
- 4-Isopropyl-N-(1-methyl-2-oxoindolin-5-yl)benzenesulfonamide921862-15-9C18H20N2O3S
- 2,3,5,6-Tetramethyl-N-(2-oxoindolin-5-yl)benzenesulfonamide921773-23-1C18H20N2O3S
- N-(1-Ethyl-2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)-4-methylbenzenesulfonamide922105-22-4C18H20N2O3S
- 4-Ethyl-N-(1-methyl-2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)benzenesulfonamide922105-68-8C18H20N2O3S
- 2,4,5-Trimethyl-N-(2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)benzenesulfonamide921916-37-2C18H20N2O3S
- N-(1-Benzoyl-1,2,3,4-tetrahydroquinolin-7-yl)ethane-1-sulfonamide946221-03-0C18H20N2O3S
- 3,5-Dimethyl-1-[(4-propoxynaphthyl)sulfonyl]pyrazole1081320-76-4C18H20N2O3S
- 1-(4-(sec-Butyl)benzyl)-1H-benzo[d]imidazole-2-sulfonic acid1147200-25-6C18H20N2O3S
- 1-([1,1'-Biphenyl]-4-ylsulfonyl)-4-piperidinecarboxamide1087639-75-5C18H20N2O3S
- (E)-N-(4,5-Dihydrothiazol-2-yl)-3-(6-methoxy-2,3-dimethylbenzofuran-5-yl)but-2-enamide1173408-93-9C18H20N2O3S
- 1-(4-Methoxyphenyl)-5-oxo-N-[2-(thiophen-2-yl)ethyl]pyrrolidine-3-carboxamide1048893-69-1C18H20N2O3S
- N-{4-[2-(4-Hydroxypiperidin-1-yl)-2-oxoethyl]phenyl}thiophene-3-carboxamide1235009-63-8C18H20N2O3S
- (4-(Cyclopropylsulfonyl)piperazin-1-yl)(naphthalen-1-yl)methanone1219914-29-0C18H20N2O3S
- Phenyl 4-((thiophene-2-carboxamido)methyl)piperidine-1-carboxylate1235084-38-4C18H20N2O3S
- (E)-N-((1-(3-(Furan-2-yl)acryloyl)piperidin-4-yl)methyl)thiophene-2-carboxamide1235706-08-7C18H20N2O3S
- N-(2-(1H-Indol-3-yl)ethyl)-2-phenoxyethanesulfonamide1351604-96-0C18H20N2O3S
- N1-(2-hydroxy-2-phenylpropyl)-N2-(3-(methylthio)phenyl)oxalamide1351644-72-8C18H20N2O3S
- N1-(3-hydroxy-3-phenylpropyl)-N2-(2-(methylthio)phenyl)oxalamide1396747-75-3C18H20N2O3S
- (E)-N-((1-(Furan-3-carbonyl)piperidin-4-yl)methyl)-3-(thiophen-2-yl)acrylamide1396891-38-5C18H20N2O3S
- (E)-N-((1-(Furan-3-carbonyl)piperidin-4-yl)methyl)-3-(thiophen-3-yl)acrylamide1396891-36-3C18H20N2O3S
- N1-(2-cyclopropyl-2-hydroxy-2-phenylethyl)-N2-(thiophen-2-ylmethyl)oxalamide1421501-08-7C18H20N2O3S
- (7,7-Dimethyl-6,8-dioxa-2-azaspiro[3.5]nonan-2-yl)(2-phenylthiazol-4-yl)methanone1396806-55-5C18H20N2O3S
- N1-((2-hydroxy-1,2,3,4-tetrahydronaphthalen-2-yl)methyl)-N2-(thiophen-2-ylmethyl)oxalamide1421506-79-7C18H20N2O3S
- N-(2-(Benzo[b]thiophen-2-yl)-2-hydroxypropyl)-2-(3,5-dimethylisoxazol-4-yl)acetamide2034403-83-1C18H20N2O3S
- Ethyl 2-(4-butoxy-3-cyanophenyl)-4-methylthiazole-5-carboxylate2230270-05-8C18H20N2O3S
- 2-[(2-Amino-3-benzhydrylsulfanylpropanoyl)amino]acetic acid26988-56-7C18H20N2O3S
- N-(3-Isopropoxybenzoyl)-N'-(2-methoxyphenyl)thiourea428467-07-6C18H20N2O3S
- N-[(2-Hydroxy-3,5-dimethylphenyl)carbamothioyl]-2-(3-methylphenoxy)acetamide445412-58-8C18H20N2O3S
- N-[(3,5-Dimethylphenyl)carbamothioyl]-3,4-dimethoxybenzamide364741-32-2C18H20N2O3S
- N-[(2,3-Dimethylphenyl)carbamothioyl]-3,4-dimethoxybenzamide445419-66-9C18H20N2O3S
- N-[(4-Ethylphenyl)carbamothioyl]-3,5-dimethoxybenzamide428857-01-6C18H20N2O3S
- 3-Ethoxy-N-[(2-hydroxy-4,5-dimethylphenyl)carbamothioyl]benzamide364595-18-6C18H20N2O3S
- N-[(3-Methoxyphenyl)carbamothioyl]-3-propoxybenzamide428848-30-0C18H20N2O3S
- (E)-N-[(5-tert-Butyl-2-hydroxyphenyl)carbamothioyl]-3-(furan-2-yl)prop-2-enamide429640-69-7C18H20N2O3S
- N-[(3,4-Dimethylphenyl)carbamothioyl]-2-(3-methoxyphenoxy)acetamide764710-13-6C18H20N2O3S
- N-[3-(3,4-Dihydroisoquinolin-2(1H)-yl)-3-oxopropyl]benzenesulfonamide849536-26-1C18H20N2O3S
- 2-Methyl-N-(1-methylsulfonyl-3,4-dihydro-2H-quinolin-7-yl)benzamide946350-19-2C18H20N2O3S
- 3-Methyl-N-(1-methylsulfonyl-3,4-dihydro-2H-quinolin-7-yl)benzamide946299-15-6C18H20N2O3S
- N-(4-(1,1-Dioxido-1,2-thiazinan-2-yl)phenyl)-2-methylbenzamide899979-48-7C18H20N2O3S
- N-(1-Acetyl-3,4-dihydro-2H-quinolin-6-yl)-3-methylbenzenesulfonamide942006-00-0C18H20N2O3S
- N-(1-Acetyl-3,4-dihydro-2H-quinolin-6-yl)-4-methylbenzenesulfonamide941915-83-9C18H20N2O3S
- 3-Methyl-N-(4-methyl-3-(2-oxopyrrolidin-1-yl)phenyl)benzenesulfonamide953142-03-5C18H20N2O3S
- N-(3-(1,1-Dioxidoisothiazolidin-2-yl)phenyl)-3,5-dimethylbenzamide942011-36-1C18H20N2O3S
- N-(3-(1,1-Dioxidoisothiazolidin-2-yl)phenyl)-3,4-dimethylbenzamide942011-44-1C18H20N2O3S
- N-(3-(1,1-Dioxidoisothiazolidin-2-yl)phenyl)-2-(m-tolyl)acetamide941932-41-8C18H20N2O3S
Frequently asked questions
What is the molar mass of C18H20N2O3S?
The molar mass of C18H20N2O3S is 344.43 g/mol, calculated from standard atomic weights for 18 carbon atoms, 20 hydrogen atoms, 2 nitrogen atoms, 3 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 344.1195 Da.
How many compounds have the formula C18H20N2O3S?
CompoundList lists 453 compounds with the molecular formula C18H20N2O3S, including 2-(4-Ethoxybenzamido)-N-methyl-4H,5H,6H-cyclopenta[b]thiophene-3-carboxamide, N-(4-(1,1-Dioxido-1,2-thiazinan-2-yl)phenyl)-4-methylbenzamide, N-(4-(1,1-Dioxidoisothiazolidin-2-yl)phenyl)-3,5-dimethylbenzamide. 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 C18H20N2O3S?
C18H20N2O3S has a degree of unsaturation of 10. 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.