Molecular formula
C18H18N2O4S
269 compounds have this formula on CompoundList.
- Molar mass
- 358.41g/mol
- Monoisotopic mass
- 358.0987Da
- Atoms
- 43
- Elements
- 5
- Rings plus double bonds
- 11
The formula C18H18N2O4S describes a molecule made of 18 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 × 1860.32%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 185.06%1.008 × 18 = 18.144 g/mol
- N Nitrogen × 27.82%14.007 × 2 = 28.014 g/mol
- O Oxygen × 417.86%15.999 × 4 = 63.996 g/mol
- S Sulfur × 18.95%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C18H18N2O4S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 201 to 269 of 269 compounds
4-(3-Tosylpropanoyl)-3,4-dihydroquinoxalin-2(1H)-one
CAS 952812-63-4C18H18N2O4S
4-(2-(4-(Ethylsulfonyl)phenyl)acetyl)-3,4-dihydroquinoxalin-2(1H)-one
CAS 952887-87-5C18H18N2O4S
N-((5-(3,4-Dimethoxyphenyl)isoxazol-3-yl)methyl)-2-(thiophen-2-yl)acetamide
CAS 953233-45-9C18H18N2O4S
![Methyl 4-((2-(ethylsulfonyl)-1H-benzo[d]imidazol-1-yl)methyl)benzoate chemical structure, C18H18N2O4S, CAS 886924-71-6](/s/WHRGBRJFTKJXGO-UHFFFAOYSA-N.svg)
Methyl 4-((2-(ethylsulfonyl)-1H-benzo[d]imidazol-1-yl)methyl)benzoate
CAS 886924-71-6C18H18N2O4S
N-Methyl-1-(2-(methylsulfonyl)benzoyl)indoline-2-carboxamide
CAS 1103515-24-7C18H18N2O4S
4-(Benzenesulfonyl)-N-(2-methoxyethyl)-2-phenyl-1,3-oxazol-5-amine
CAS 862741-67-1C18H18N2O4S
(S)-N-(1-(3-Hydroxy-1H-indol-1-yl)-1-oxopropan-2-yl)-4-methylbenzenesulfonamide
CAS 101506-88-1C18H18N2O4S
Methyl 4-(2-oxo-2-(((1-(thiophen-2-yl)cyclopropyl)methyl)amino)acetamido)benzoate
CAS 1207022-88-5C18H18N2O4S
![3-(((6-Methylbenzo[d]thiazol-2-yl)amino)methylene)-1,5-dioxaspiro[5.5]undecane-2,4-dione chemical structure, C18H18N2O4S, CAS 1105216-28-1](/s/ACBONUSKPKGPOW-UHFFFAOYSA-N.svg)
3-(((6-Methylbenzo[d]thiazol-2-yl)amino)methylene)-1,5-dioxaspiro[5.5]undecane-2,4-dione
CAS 1105216-28-1C18H18N2O4S
![2-(2-(Benzo[d][1,3]dioxol-5-yl)acetamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide chemical structure, C18H18N2O4S, CAS 922013-65-8](/s/SSAOAIQANKQTQG-UHFFFAOYSA-N.svg)
2-(2-(Benzo[d][1,3]dioxol-5-yl)acetamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide
CAS 922013-65-8C18H18N2O4S
![1-[(2-Acetylphenyl)carbamoyl]ethyl 2-(methylsulfanyl)pyridine-3-carboxylate chemical structure, C18H18N2O4S, CAS 1089607-30-6](/s/IRJMJPXAXAKOGS-UHFFFAOYSA-N.svg)
1-[(2-Acetylphenyl)carbamoyl]ethyl 2-(methylsulfanyl)pyridine-3-carboxylate
CAS 1089607-30-6C18H18N2O4S
![5-[(Benzenesulfonyl)methyl]-N-(1-cyanocyclobutyl)-N-methylfuran-2-carboxamide chemical structure, C18H18N2O4S, CAS 1281174-58-0](/s/YJEWLVJJZQWEIW-UHFFFAOYSA-N.svg)
5-[(Benzenesulfonyl)methyl]-N-(1-cyanocyclobutyl)-N-methylfuran-2-carboxamide
CAS 1281174-58-0C18H18N2O4S
![N-(2-Ethoxyphenyl)-4-ethyl-7-hydroxy-5-oxo-4H,5H-thieno[3,2-b]pyridine-6-carboxamide chemical structure, C18H18N2O4S, CAS 1251610-16-8](/s/JIAKGAPPACFYCY-UHFFFAOYSA-N.svg)
N-(2-Ethoxyphenyl)-4-ethyl-7-hydroxy-5-oxo-4H,5H-thieno[3,2-b]pyridine-6-carboxamide
CAS 1251610-16-8C18H18N2O4S
![4-Ethyl-7-hydroxy-N-(2-methoxy-5-methylphenyl)-5-oxo-4,5-dihydrothieno[3,2-b]pyridine-6-carboxamide chemical structure, C18H18N2O4S, CAS 1251572-20-9](/s/GFIAMAAFNDXMJP-UHFFFAOYSA-N.svg)
4-Ethyl-7-hydroxy-N-(2-methoxy-5-methylphenyl)-5-oxo-4,5-dihydrothieno[3,2-b]pyridine-6-carboxamide
CAS 1251572-20-9C18H18N2O4S
2,5-Dimethoxy-4-methyl-N-(quinolin-3-yl)benzene-1-sulfonamide
CAS 1374681-64-7C18H18N2O4S
1-(3-((Furan-2-ylmethyl)sulfonyl)azetidin-1-yl)-2-(1H-indol-1-yl)ethanone
CAS 1797020-56-4C18H18N2O4S
(3-((Furan-2-ylmethyl)sulfonyl)pyrrolidin-1-yl)(1H-indol-5-yl)methanone
CAS 1787917-38-7C18H18N2O4S
![N-(Benzo[d][1,3]dioxol-5-yl)-2-(3-methoxyphenyl)thiazolidine-3-carboxamide chemical structure, C18H18N2O4S, CAS 2034614-63-4](/s/OVSBFBMFLFYKBB-UHFFFAOYSA-N.svg)
N-(Benzo[d][1,3]dioxol-5-yl)-2-(3-methoxyphenyl)thiazolidine-3-carboxamide
CAS 2034614-63-4C18H18N2O4S
N-(2-Hydroxy-3-(2-oxopyridin-1(2H)-yl)propyl)naphthalene-1-sulfonamide
CAS 1706084-75-4C18H18N2O4S
![3-(2-(7-(Furan-2-yl)-1,4-thiazepan-4-yl)-2-oxoethyl)benzo[d]oxazol-2(3H)-one chemical structure, C18H18N2O4S, CAS 1705871-48-2](/s/HFTJAHYXDBBIKZ-UHFFFAOYSA-N.svg)
3-(2-(7-(Furan-2-yl)-1,4-thiazepan-4-yl)-2-oxoethyl)benzo[d]oxazol-2(3H)-one
CAS 1705871-48-2C18H18N2O4S
![N-(Benzo[d][1,3]dioxol-5-ylmethyl)-2-((tetrahydrothiophen-3-yl)oxy)isonicotinamide chemical structure, C18H18N2O4S, CAS 2034360-80-8](/s/SFQOZYWKZMFNNQ-UHFFFAOYSA-N.svg)
N-(Benzo[d][1,3]dioxol-5-ylmethyl)-2-((tetrahydrothiophen-3-yl)oxy)isonicotinamide
CAS 2034360-80-8C18H18N2O4S
![N-(2-(Furan-2-yl)-2-hydroxy-2-(thiophen-2-yl)ethyl)-4,5,6,7-tetrahydrobenzo[d]isoxazole-3-carboxamide chemical structure, C18H18N2O4S, CAS 2034484-96-1](/s/JOHPFKLYDGKPCO-UHFFFAOYSA-N.svg)
N-(2-(Furan-2-yl)-2-hydroxy-2-(thiophen-2-yl)ethyl)-4,5,6,7-tetrahydrobenzo[d]isoxazole-3-carboxamide
CAS 2034484-96-1C18H18N2O4S
![N1-(2-(benzo[b]thiophen-2-yl)-2-hydroxypropyl)-N2-(furan-2-ylmethyl)oxalamide chemical structure, C18H18N2O4S, CAS 1903893-01-5](/s/ACDYHAGTZCUKDR-UHFFFAOYSA-N.svg)
N1-(2-(benzo[b]thiophen-2-yl)-2-hydroxypropyl)-N2-(furan-2-ylmethyl)oxalamide
CAS 1903893-01-5C18H18N2O4S
![N-(2-(Furan-2-yl)-2-hydroxy-2-(thiophen-3-yl)ethyl)-4,5,6,7-tetrahydrobenzo[d]isoxazole-3-carboxamide chemical structure, C18H18N2O4S, CAS 2034237-54-0](/s/MNVHSERPUUEIJG-UHFFFAOYSA-N.svg)
N-(2-(Furan-2-yl)-2-hydroxy-2-(thiophen-3-yl)ethyl)-4,5,6,7-tetrahydrobenzo[d]isoxazole-3-carboxamide
CAS 2034237-54-0C18H18N2O4S
- N-(2-(2-Hydroxyethoxy)-2-(thiophen-2-yl)ethyl)-5-phenylisoxazole-3-carboxamide2034614-81-6C18H18N2O4S
- N-(2-(Furan-3-yl)-2-hydroxy-2-(thiophen-2-yl)ethyl)-4,5,6,7-tetrahydrobenzo[d]isoxazole-3-carboxamide2034264-77-0C18H18N2O4S
- 1-(2,3-Dimethoxyphenyl)-3-((5-(thiophen-3-yl)furan-2-yl)methyl)urea2034341-63-2C18H18N2O4S
- N1-(2-(benzofuran-2-yl)-2-methoxyethyl)-N2-(thiophen-2-ylmethyl)oxalamide2034556-76-6C18H18N2O4S
- N-(2-(2-Hydroxyethoxy)-2-(thiophen-3-yl)ethyl)-5-phenylisoxazole-3-carboxamide2034566-27-1C18H18N2O4S
- tert-Butyl (3-((3-cyanophenyl)sulfonyl)phenyl)carbamate1639298-56-8C18H18N2O4S
- Ethyl (7Z)-2-benzamido-7-(hydroxyimino)-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylateC18H18N2O4S
- 4-(Cyclopropylmethyl)-2-(3-methoxyphenyl)-1,1-dioxo-1lambda6,2,4-benzothiadiazin-3-one2548987-17-1C18H18N2O4S
- Ethyl {(5E)-5-[(1-ethyl-1H-indol-3-yl)methylidene]-2,4-dioxo-1,3-thiazolidin-3-yl}acetate432538-38-0C18H18N2O4S
- 2-Methyl-3-({[(3-methylphenoxy)acetyl]carbamothioyl}amino)benzoic acid434306-61-3C18H18N2O4S
- Propyl 4-({[(2E)-3-(furan-2-yl)prop-2-enoyl]carbamothioyl}amino)benzoate429643-11-8C18H18N2O4S
- (2S)-3-(1H-Indol-3-yl)-2-(3-methylbenzenesulfonamido)propanoic acid85979-23-3C18H18N2O4S
- 2-(4-Ethoxyphenyl)-5-(4-methylphenyl)sulfonyl-3H-pyrazol-4-one1023468-48-5C18H18N2O4S
- Acetamidine, 2-(2-(phenylthio)phenyl)-, (Z)-2-butenedioate (1:1)117596-36-8C18H18N2O4S
- 3,5-Dimethoxy-N-(4-methoxy-7-methyl-1,3-benzothiazol-2-yl)benzamide912762-08-4C18H18N2O4S
- N-(4,7-Dimethoxy-1,3-benzothiazol-2-yl)-4-ethoxybenzamide912771-06-3C18H18N2O4S
- N-(4-Ethoxy-1,3-benzothiazol-2-yl)-2,3-dimethoxybenzamide895441-45-9C18H18N2O4S
- 3-Methyl-1-(4-methylphenyl)-1H-pyrazol-5-yl 4-methoxybenzenesulfonate957510-59-7C18H18N2O4S
- 2-(6,7-Dimethyl-1-benzofuran-3-yl)-N-(4-sulfamoylphenyl)acetamide866247-69-0C18H18N2O4S
- 4-(4-(Phenylsulfonyl)butanoyl)-3,4-dihydroquinoxalin-2(1H)-one952861-52-8C18H18N2O4S
- 4-Acetyl-N-(5-oxo-1-phenylpyrrolidin-3-yl)benzenesulfonamide896306-86-8C18H18N2O4S
- (E)-2-(4-Methylphenyl)-N-[2-(2-oxo-1,3-oxazolidin-3-yl)phenyl]ethenesulfonamide1259235-35-2C18H18N2O4S
- Ethyl (2E)-cyano[4-(2-ethoxy-2-oxoethyl)-3-phenyl-1,3-thiazol-2(3H)-ylidene]acetate84645-52-3C18H18N2O4S
- N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-2-((tetrahydrothiophen-3-yl)oxy)nicotinamide2034499-44-8C18H18N2O4S
- 4-(1-(Benzo[b]thiophene-2-carbonyl)piperidin-4-yl)morpholine-3,5-dione2034424-23-0C18H18N2O4S
- Methyl 4-[(3-cyclopropyl-2,2-dioxo-1,3-dihydro-2lambda6,1,3-benzothiadiazol-1-yl)methyl]benzoate2097862-05-8C18H18N2O4S
- Ethyl 5-methyl-4-oxo-3-(2-phenoxyethyl)-3,4-dihydrothieno[2,3-d]pyrimidine-6-carboxylate692761-13-0C18H18N2O4S
- 2-[[2-(3,5-Dimethylphenoxy)acetyl]carbamothioylamino]benzoic acid530153-05-0C18H18N2O4S
- 3-[[[[(3,5-Dimethylphenoxy)acetyl]amino]thioxomethyl]amino]-benzoic acid530128-52-0C18H18N2O4S
- 4-[[[[4-(1-Methylethoxy)benzoyl]amino]thioxomethyl]amino]-benzoic acid530148-89-1C18H18N2O4S
- 3-[[[(4-Ethoxybenzoyl)amino]thioxomethyl]amino]-2-methyl-benzoic acid531546-82-4C18H18N2O4S
- 2-Methyl-3-[[2-(4-methylphenoxy)acetyl]carbamothioylamino]benzoic acid532430-11-8C18H18N2O4S
- (2-Cyanophenyl)methyl 2-[methyl-(4-methylphenyl)sulfonylamino]acetate5732-63-8C18H18N2O4S
- Ethyl [1-(benzylsulfonyl)imidazo[1,5-a]pyridin-3-yl]acetate1346517-90-5C18H18N2O4S
- Ethyl 3-benzylsulfonyl-1H-indazol-1-ylacetate1346560-00-6C18H18N2O4S
- 4-[5-(3-Methoxyphenyl)-3-(thiophen-2-yl)-4,5-dihydro-1H-pyrazol-1-yl]-4-oxobutanoic acid1410792-93-6C18H18N2O4S
- 1-(2,3-Dimethoxyphenyl)-3-{[4-(furan-3-yl)thiophen-2-yl]methyl}urea2379975-67-2C18H18N2O4S
- 2-(2,5-Dioxopyrrolidin-1-yl)-N-{2-hydroxy-2-[4-(thiophen-2-yl)phenyl]ethyl}acetamide2380194-09-0C18H18N2O4S
- Methyl 7-((2,4-dimethoxybenzyl)amino)thieno[2,3-c]pyridine-2-carboxylate2766206-95-3C18H18N2O4S
- 4-Methyl-3-[[2-(2-methylphenoxy)acetyl]carbamothioylamino]benzoic acid461399-67-7C18H18N2O4S
- N-{2-[4-(Furan-2-yl)thiophen-2-yl]-2-hydroxyethyl}-4,5,6,7-tetrahydro-1,2-benzoxazole-3-carboxamide2415500-43-3C18H18N2O4S
- 3-(2H-1,3-Benzodioxol-5-yl)-1-[(4-hydroxy-3,4-dihydro-1H-2-benzothiopyran-4-yl)methyl]urea2742032-75-1C18H18N2O4S
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(2-butyl-4-methyl-1,3-thiazol-5-yl)acetate2248396-50-9C18H18N2O4S
- 4-{[(Benzyloxy)carbonyl]amino}-3-thia-1-azatricyclo[5.2.2.0,2,6]undeca-2(6),4-diene-5-carboxylic acid2580201-59-6C18H18N2O4S
- {4-[(6-Hydroxy-4,5,7-trimethyl-1,3-benzothiazol-2-yl)amino]phenoxy}acetic acid783268-37-1C18H18N2O4S
Frequently asked questions
What is the molar mass of C18H18N2O4S?
The molar mass of C18H18N2O4S is 358.41 g/mol, calculated from standard atomic weights for 18 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms, 4 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 358.0987 Da.
How many compounds have the formula C18H18N2O4S?
CompoundList lists 269 compounds with the molecular formula C18H18N2O4S, including 4-(3-Tosylpropanoyl)-3,4-dihydroquinoxalin-2(1H)-one, 4-(2-(4-(Ethylsulfonyl)phenyl)acetyl)-3,4-dihydroquinoxalin-2(1H)-one, N-((5-(3,4-Dimethoxyphenyl)isoxazol-3-yl)methyl)-2-(thiophen-2-yl)acetamide. 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 C18H18N2O4S?
C18H18N2O4S has a degree of unsaturation of 11. 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.