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 401 to 453 of 453 compounds
![2-[2-({2-[4-(Methylamino)phenyl]-1,3-benzothiazol-6-yl}oxy)ethoxy]ethan-1-ol chemical structure, C18H20N2O3S, CAS 917763-19-0](/s/NEEOUBSCMVVROQ-UHFFFAOYSA-N.svg)
2-[2-({2-[4-(Methylamino)phenyl]-1,3-benzothiazol-6-yl}oxy)ethoxy]ethan-1-ol
CAS 917763-19-0C18H20N2O3S
![1-[(5-Isopropyl-2-methoxyphenyl)sulfonyl]-2-methyl-1H-benzimidazole chemical structure, C18H20N2O3S, CAS 1428153-69-8](/s/JRJOPOJXCSBRPI-UHFFFAOYSA-N.svg)
1-[(5-Isopropyl-2-methoxyphenyl)sulfonyl]-2-methyl-1H-benzimidazole
CAS 1428153-69-8C18H20N2O3S
N-Benzyl-3-(phenylsulfonyl)pyrrolidine-1-carboxamide
CAS 1448057-73-5C18H20N2O3S
N-Phenyl-4-(phenylsulfonyl)piperidine-1-carboxamide
CAS 1448060-86-3C18H20N2O3S
![6-Methoxy-N-[2-methoxy-2-(5-methylthiophen-2-yl)ethyl]-1H-indole-2-carboxamide chemical structure, C18H20N2O3S, CAS 1448033-48-4](/s/HJRQOGCWYBYKEU-UHFFFAOYSA-N.svg)
6-Methoxy-N-[2-methoxy-2-(5-methylthiophen-2-yl)ethyl]-1H-indole-2-carboxamide
CAS 1448033-48-4C18H20N2O3S
6-Methoxy-N-(2-methoxyethyl)-N-(thiophen-3-ylmethyl)-1H-indole-2-carboxamide
CAS 1797318-51-4C18H20N2O3S
![N-Methyl-3-[2-[[(E)-2-phenylethenyl]sulfonylamino]ethyl]benzamide chemical structure, C18H20N2O3S, CAS 1385620-28-9](/s/YIJADGSPJFMJSY-ACCUITESSA-N.svg)
N-Methyl-3-[2-[[(E)-2-phenylethenyl]sulfonylamino]ethyl]benzamide
CAS 1385620-28-9C18H20N2O3S
3-(Phenylsulfonyl)-N-(o-tolyl)pyrrolidine-1-carboxamide
CAS 1705770-64-4C18H20N2O3S
N-(2-Hydroxyethyl)-N-phenyl-6-((tetrahydrothiophen-3-yl)oxy)nicotinamide
CAS 2034444-43-2C18H20N2O3S
N-(2-Ethoxyphenyl)-6-((tetrahydrothiophen-3-yl)oxy)nicotinamide
CAS 2034494-59-0C18H20N2O3S
N-(3-Methoxybenzyl)-6-((tetrahydrothiophen-3-yl)oxy)nicotinamide
CAS 2034470-52-3C18H20N2O3S
N-(2-Methoxybenzyl)-2-((tetrahydrothiophen-3-yl)oxy)isonicotinamide
CAS 2034428-57-2C18H20N2O3S
N-(2-Methoxy-5-methylphenyl)-2-((tetrahydrothiophen-3-yl)oxy)isonicotinamide
CAS 2034388-71-9C18H20N2O3S
N-(2-Phenoxyethyl)-2-((tetrahydrothiophen-3-yl)oxy)isonicotinamide
CAS 2034498-41-2C18H20N2O3S
N-(2-Methoxybenzyl)-2-((tetrahydrothiophen-3-yl)oxy)nicotinamide
CAS 1903634-10-5C18H20N2O3S
N-(2-Methoxy-5-methylphenyl)-2-((tetrahydrothiophen-3-yl)oxy)nicotinamide
CAS 2034240-96-3C18H20N2O3S
![N-(2-(Benzo[b]thiophen-3-yl)-2-hydroxyethyl)-3-(3,5-dimethylisoxazol-4-yl)propanamide chemical structure, C18H20N2O3S, CAS 2097899-48-2](/s/UVATYXZCMYOONK-UHFFFAOYSA-N.svg)
N-(2-(Benzo[b]thiophen-3-yl)-2-hydroxyethyl)-3-(3,5-dimethylisoxazol-4-yl)propanamide
CAS 2097899-48-2C18H20N2O3S
![2-(4-Methoxybenzyl)-2H-spiro[benzo[d]isothiazole-3,3'-pyrrolidine] 1,1-dioxide chemical structure, C18H20N2O3S, CAS 1422068-56-1](/s/RDJJZANERKEWDR-UHFFFAOYSA-N.svg)
2-(4-Methoxybenzyl)-2H-spiro[benzo[d]isothiazole-3,3'-pyrrolidine] 1,1-dioxide
CAS 1422068-56-1C18H20N2O3S
![Methyl 4-({1-[(thiophen-3-yl)methyl]pyrrolidin-3-yl}carbamoyl)benzoate chemical structure, C18H20N2O3S, CAS 2097911-90-3](/s/UNAJPRNBFMSLJI-UHFFFAOYSA-N.svg)
Methyl 4-({1-[(thiophen-3-yl)methyl]pyrrolidin-3-yl}carbamoyl)benzoate
CAS 2097911-90-3C18H20N2O3S
(Z)-2-Cyano-3-(4-hydroxy-1-benzothiophen-2-yl)-N-(3-propan-2-yloxypropyl)prop-2-enamide
CAS 2094952-36-8C18H20N2O3S
![N-[(1S,2R)-2,6-Dimethyl-2,3-dihydro-1H-inden-1-yl]-6-methylsulfonylpyridine-3-carboxamide chemical structure, C18H20N2O3S, CAS 2249468-39-9](/s/AIPZVHNXHWGHFF-PXAZEXFGSA-N.svg)
N-[(1S,2R)-2,6-Dimethyl-2,3-dihydro-1H-inden-1-yl]-6-methylsulfonylpyridine-3-carboxamide
CAS 2249468-39-9C18H20N2O3S
N-(2,3-Dihydro-1H-inden-1-ylmethyl)-N-methyl-6-methylsulfonylpyridine-3-carboxamide
CAS 2249155-89-1C18H20N2O3S
![N-Cyclopropyl-N-[(2-methylphenyl)methyl]-6-methylsulfonylpyridine-3-carboxamide chemical structure, C18H20N2O3S, CAS 2248863-60-5](/s/GTTCPMVGDGWZPX-UHFFFAOYSA-N.svg)
N-Cyclopropyl-N-[(2-methylphenyl)methyl]-6-methylsulfonylpyridine-3-carboxamide
CAS 2248863-60-5C18H20N2O3S
![Methyl (E)-5-phenyl-2-[3-(1,3-thiazol-4-yl)propanoylamino]pent-4-enoate chemical structure, C18H20N2O3S, CAS 2460763-59-9](/s/LVXWLRYAPUNIES-VMPITWQZSA-N.svg)
Methyl (E)-5-phenyl-2-[3-(1,3-thiazol-4-yl)propanoylamino]pent-4-enoate
CAS 2460763-59-9C18H20N2O3S
- N-(3-Methylphenyl)-3-(2-phenylethenesulfonamido)propanamide949386-62-3C18H20N2O3S
- Benzyl 4-[(thiophen-2-yl)acetyl]piperazine-1-carboxylate918479-98-8C18H20N2O3S
- 1-(5-Ethoxy-2,4-dimethylbenzenesulfonyl)-2-methyl-1H-1,3-benzodiazole1428152-35-5C18H20N2O3S
- 2-(4-Methyl-2-phenylpiperazin-1-yl)sulfonylbenzaldehyde2305542-07-6C18H20N2O3S
- N-(Furan-2-ylmethyl)-5-isobutyl-2-methyl-4-oxo-4,5-dihydrothieno[3,2-c]pyridine-3-carboxamide1574605-44-9C18H20N2O3S
- N'-(4-Ethoxyphenyl)-N-{[1-(thiophen-3-yl)cyclopropyl]methyl}ethanediamide2415540-92-8C18H20N2O3S
- Febuxostat 2-butyl isomer ethyl ester2375033-35-3C18H20N2O3S
- 2-Ethyl-1-(6-methanesulfonylpyridine-3-carbonyl)-1,2,3,4-tetrahydroquinoline2392868-44-7C18H20N2O3S
- 1-[4-(Ethanesulfonyl)phenyl]-3-(4-methoxyphenyl)-4,5-dihydro-1H-pyrazole94068-14-1C18H20N2O3S
- (4-Methylphenyl)carbamic acid 1-methyl-2-(3-oxo-1,2-benzisothiazol-2(3H)-yl)ethyl ester199173-11-0C18H20N2O3S
- 6-Ethyl-2-(2-methoxyethyl)-5-(3-methoxyphenyl)-3H-thieno[2,3-d]pyrimidin-4-one1082128-60-6C18H20N2O3S
- 2-[4-(Furan-2-carbonyl)piperazin-1-yl]-1-[4-(methylsulfanyl)phenyl]ethan-1-one105578-69-6C18H20N2O3S
- 4-Nitro-N-[4-(pentyloxy)phenyl]benzene-1-carbothioamide62516-84-1C18H20N2O3S
- N-[Benzyl(ethyl)carbamoyl]-2-phenylethene-1-sulfonamide61298-80-4C18H20N2O3S
- N-[Methyl(2-phenylethyl)carbamoyl]-2-phenylethene-1-sulfonamide61298-67-7C18H20N2O3S
- 2,2-Diphenyl-N-(propylcarbamoyl)ethene-1-sulfonamide56752-94-4C18H20N2O3S
- 2,2-Diphenyl-N-[(propan-2-yl)carbamoyl]ethene-1-sulfonamide56752-93-3C18H20N2O3S
- 3-(1-(3-(4-(Methylthio)phenyl)propanoyl)azetidin-3-yl)-3-azabicyclo[3.1.0]hexane-2,4-dione2742050-82-2C18H20N2O3S
- N'-Benzyl-N-[(4-hydroxy-4,5,6,7-tetrahydro-1-benzothiophen-4-yl)methyl]ethanediamide2549002-82-4C18H20N2O3S
- 3-(3,5-Dimethyl-1,2-oxazol-4-yl)-N-{2-[5-(furan-2-yl)thiophen-2-yl]ethyl}propanamide2741931-04-2C18H20N2O3S
- 3-[(4-Hydroxy-3,4-dihydro-1H-2-benzothiopyran-4-yl)methyl]-1-(2-methoxyphenyl)urea2742068-25-1C18H20N2O3S
- (1S,5R)-1,2,3,4,5,6-Hexahydro-3-[(4-methylphenyl)sulfonyl]-1,5-methano-10H-pyrido[1,2-d][1,4]diazocin-10-one881386-06-7C18H20N2O3S
- Benzyl 4-[2-oxo-2-(thiophen-2-yl)ethyl]piperazine-1-carboxylate2680852-65-5C18H20N2O3S
- Benzyl N-(1-oxo-3-phenyl-1lambda6-thiomorpholin-1-ylidene)carbamate2680898-18-2C18H20N2O3S
- tert-Butyl N-[3-(pyridine-3-carbonyl)-4H,5H,6H-cyclopenta[b]thiophen-2-yl]carbamate2680826-03-1C18H20N2O3S
- tert-Butyl N-[3-(pyridine-4-carbonyl)-4H,5H,6H-cyclopenta[b]thiophen-2-yl]carbamate2680689-10-3C18H20N2O3S
- Phenylmethylcarbamic acid 1-methyl-2-(3-oxo-1,2-benzisothiazol-2(3H)-yl)ethyl ester199173-06-3C18H20N2O3S
- (3-Methylphenyl)carbamic acid 1-methyl-2-(3-oxo-1,2-benzisothiazol-2(3H)-yl)ethyl ester199173-10-9C18H20N2O3S
- 5-(((4-Methoxy-3-(methylthio)benzyl)amino)methyl)-2H-benzo[b][1,4]oxazin-3(4H)-one2954733-33-4C18H20N2O3S
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-[2-({2-[4-(Methylamino)phenyl]-1,3-benzothiazol-6-yl}oxy)ethoxy]ethan-1-ol, 1-[(5-Isopropyl-2-methoxyphenyl)sulfonyl]-2-methyl-1H-benzimidazole, N-Benzyl-3-(phenylsulfonyl)pyrrolidine-1-carboxamide. 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.