Molecular formula
C18H18N2O5S
163 compounds have this formula on CompoundList.
- Molar mass
- 374.41g/mol
- Monoisotopic mass
- 374.0936Da
- Atoms
- 44
- Elements
- 5
- Rings plus double bonds
- 11
The formula C18H18N2O5S describes a molecule made of 18 carbon atoms, 18 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 × 1857.74%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 184.85%1.008 × 18 = 18.144 g/mol
- N Nitrogen × 27.48%14.007 × 2 = 28.014 g/mol
- O Oxygen × 521.37%15.999 × 5 = 79.995 g/mol
- S Sulfur × 18.56%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C18H18N2O5S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 163 of 163 compounds
![Ethyl 2-[7-(3,4-dimethoxyphenyl)-4-oxo-3H,4H-thieno[3,2-d]pyrimidin-3-yl]acetate chemical structure, C18H18N2O5S, CAS 1105219-76-8](/s/IZHCHGIJOAZGQL-UHFFFAOYSA-N.svg)
Ethyl 2-[7-(3,4-dimethoxyphenyl)-4-oxo-3H,4H-thieno[3,2-d]pyrimidin-3-yl]acetate
CAS 1105219-76-8C18H18N2O5S
![N-(3-Methanesulfonamidophenyl)-2-[(3-oxo-2,3-dihydro-1H-inden-5-yl)oxy]acetamide chemical structure, C18H18N2O5S, CAS 1203253-94-4](/s/YTBOQFHFFMAQEU-UHFFFAOYSA-N.svg)
N-(3-Methanesulfonamidophenyl)-2-[(3-oxo-2,3-dihydro-1H-inden-5-yl)oxy]acetamide
CAS 1203253-94-4C18H18N2O5S
![N-(3,4-Dimethoxyphenethyl)-7-hydroxy-5-oxo-4,5-dihydrothieno[3,2-b]pyridine-6-carboxamide chemical structure, C18H18N2O5S, CAS 1251671-38-1](/s/CWNYGZGYZREWKP-UHFFFAOYSA-N.svg)
N-(3,4-Dimethoxyphenethyl)-7-hydroxy-5-oxo-4,5-dihydrothieno[3,2-b]pyridine-6-carboxamide
CAS 1251671-38-1C18H18N2O5S
Methyl 2-(4-benzyl-5-oxomorpholine-3-carboxamido)thiophene-3-carboxylate
CAS 1351586-62-3C18H18N2O5S
![N-(Benzo[d][1,3]dioxol-5-ylmethyl)-5-oxo-4-(thiophen-2-ylmethyl)morpholine-3-carboxamide chemical structure, C18H18N2O5S, CAS 1421443-10-8](/s/OEILWSGSKNVSIL-UHFFFAOYSA-N.svg)
N-(Benzo[d][1,3]dioxol-5-ylmethyl)-5-oxo-4-(thiophen-2-ylmethyl)morpholine-3-carboxamide
CAS 1421443-10-8C18H18N2O5S
![N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-5-oxo-4-(thiophen-2-ylmethyl)morpholine-3-carboxamide chemical structure, C18H18N2O5S, CAS 1421448-83-0](/s/DAUNUMZVKPWAAX-UHFFFAOYSA-N.svg)
N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-5-oxo-4-(thiophen-2-ylmethyl)morpholine-3-carboxamide
CAS 1421448-83-0C18H18N2O5S
![Ethyl 4,5-dimethyl-2-[[(E)-3-(4-nitrophenyl)prop-2-enoyl]amino]thiophene-3-carboxylate chemical structure, C18H18N2O5S, CAS 360765-94-2](/s/IKWUXQQZULATDG-JXMROGBWSA-N.svg)
Ethyl 4,5-dimethyl-2-[[(E)-3-(4-nitrophenyl)prop-2-enoyl]amino]thiophene-3-carboxylate
CAS 360765-94-2C18H18N2O5S
![Benzamide, 4-phenoxy-N-[[(tetrahydro-1,1-dioxido-3-thienyl)amino]carbonyl]- chemical structure, C18H18N2O5S, CAS 507454-60-6](/s/YQCOMDCBTHXADR-UHFFFAOYSA-N.svg)
Benzamide, 4-phenoxy-N-[[(tetrahydro-1,1-dioxido-3-thienyl)amino]carbonyl]-
CAS 507454-60-6C18H18N2O5S
![N-(4,7-Dimethoxybenzo[d]thiazol-2-yl)-2,4-dimethoxybenzamide chemical structure, C18H18N2O5S, CAS 912762-39-1](/s/CLRYZHZFVKYHRZ-UHFFFAOYSA-N.svg)
N-(4,7-Dimethoxybenzo[d]thiazol-2-yl)-2,4-dimethoxybenzamide
CAS 912762-39-1C18H18N2O5S
N-(1-Methylsulfonyl-3,4-dihydro-2H-quinolin-7-yl)-1,3-benzodioxole-5-carboxamide
CAS 946224-73-3C18H18N2O5S
![Dimethyl 2-benzamido-4,5-dihydrothieno[2,3-c]pyridine-3,6(7H)-dicarboxylate chemical structure, C18H18N2O5S, CAS 886957-41-1](/s/BIRYNXPZJVORNE-UHFFFAOYSA-N.svg)
Dimethyl 2-benzamido-4,5-dihydrothieno[2,3-c]pyridine-3,6(7H)-dicarboxylate
CAS 886957-41-1C18H18N2O5S
Ethanimidamide, N-hydroxy-2-(2-(phenylthio)phenyl)-, (Z)-2-butenedioate (1:1)
CAS 117596-51-7C18H18N2O5S
![N-(1-Methyl-2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)-2,3-dihydrobenzo[b][1,4]dioxine-6-sulfonamide chemical structure, C18H18N2O5S, CAS 922005-03-6](/s/QGMJAQOWZYBZPH-UHFFFAOYSA-N.svg)
N-(1-Methyl-2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)-2,3-dihydrobenzo[b][1,4]dioxine-6-sulfonamide
CAS 922005-03-6C18H18N2O5S
3,4,5-Trimethoxy-N-((5-(thiophen-2-yl)isoxazol-3-yl)methyl)benzamide
CAS 946345-03-5C18H18N2O5S
![N-((1-(Benzo[d][1,3]dioxol-5-yl)-5-oxopyrrolidin-3-yl)methyl)benzenesulfonamide chemical structure, C18H18N2O5S, CAS 954714-99-9](/s/WQOXJKZCRNUYFY-UHFFFAOYSA-N.svg)
N-((1-(Benzo[d][1,3]dioxol-5-yl)-5-oxopyrrolidin-3-yl)methyl)benzenesulfonamide
CAS 954714-99-9C18H18N2O5S
![Methyl 4-methoxy-3-[(6-methyl-1,1-dioxo-4H-1lambda6,2,4-benzothiadiazin-4-yl)methyl]benzoate chemical structure, C18H18N2O5S, CAS 951541-06-3](/s/KFMUDQJQPRHMTA-UHFFFAOYSA-N.svg)
Methyl 4-methoxy-3-[(6-methyl-1,1-dioxo-4H-1lambda6,2,4-benzothiadiazin-4-yl)methyl]benzoate
CAS 951541-06-3C18H18N2O5S
5-(((2,5-Dimethoxyphenyl)sulfonyl)methyl)-3-(o-tolyl)-1,2,4-oxadiazole
CAS 1105221-89-3C18H18N2O5S
3-(4-Ethoxyphenyl)-5-(((4-methoxyphenyl)sulfonyl)methyl)-1,2,4-oxadiazole
CAS 1112000-12-0C18H18N2O5S
![N-(3,4-Dimethoxyphenyl)-4-ethyl-7-hydroxy-5-oxo-4,5-dihydrothieno[3,2-b]pyridine-6-carboxamide chemical structure, C18H18N2O5S, CAS 1251681-49-8](/s/ABDGEXVXQBXWMG-UHFFFAOYSA-N.svg)
N-(3,4-Dimethoxyphenyl)-4-ethyl-7-hydroxy-5-oxo-4,5-dihydrothieno[3,2-b]pyridine-6-carboxamide
CAS 1251681-49-8C18H18N2O5S
![N-(2,5-Dimethoxyphenyl)-4-ethyl-7-hydroxy-5-oxo-4,5-dihydrothieno[3,2-b]pyridine-6-carboxamide chemical structure, C18H18N2O5S, CAS 1251572-13-0](/s/HZCPMZIHINWMCK-UHFFFAOYSA-N.svg)
N-(2,5-Dimethoxyphenyl)-4-ethyl-7-hydroxy-5-oxo-4,5-dihydrothieno[3,2-b]pyridine-6-carboxamide
CAS 1251572-13-0C18H18N2O5S
![Methyl 2-ethyl-4-[4-(methylsulfonyl)phenoxy]-2H-indazole-6-carboxylate chemical structure, C18H18N2O5S, CAS 1245216-15-2](/s/MMERCCHROKSBGY-UHFFFAOYSA-N.svg)
Methyl 2-ethyl-4-[4-(methylsulfonyl)phenoxy]-2H-indazole-6-carboxylate
CAS 1245216-15-2C18H18N2O5S
![N1-(benzo[d][1,3]dioxol-5-yl)-N2-(2-hydroxy-2-(4-(methylthio)phenyl)ethyl)oxalamide chemical structure, C18H18N2O5S, CAS 1448131-24-5](/s/QETKQLJLDPYWHX-UHFFFAOYSA-N.svg)
N1-(benzo[d][1,3]dioxol-5-yl)-N2-(2-hydroxy-2-(4-(methylthio)phenyl)ethyl)oxalamide
CAS 1448131-24-5C18H18N2O5S
![3-Methyl-5-((2-phenylmorpholino)sulfonyl)benzo[d]oxazol-2(3H)-one chemical structure, C18H18N2O5S, CAS 1448037-10-2](/s/VPBFWWIWROPXSX-UHFFFAOYSA-N.svg)
3-Methyl-5-((2-phenylmorpholino)sulfonyl)benzo[d]oxazol-2(3H)-one
CAS 1448037-10-2C18H18N2O5S
![N-((1-Hydroxy-2,3-dihydro-1H-inden-1-yl)methyl)-3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-5-sulfonamide chemical structure, C18H18N2O5S, CAS 1448037-43-1](/s/RLQLEPMNMKLTLQ-UHFFFAOYSA-N.svg)
N-((1-Hydroxy-2,3-dihydro-1H-inden-1-yl)methyl)-3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-5-sulfonamide
CAS 1448037-43-1C18H18N2O5S
- N-((2-Hydroxy-1,2,3,4-tetrahydronaphthalen-2-yl)methyl)-2-oxo-2,3-dihydrobenzo[d]oxazole-5-sulfonamide1448124-20-6C18H18N2O5S
- 2-((4-((6-Methyl-2-oxo-2H-pyran-4-yl)oxy)piperidin-1-yl)sulfonyl)benzonitrile1790201-01-2C18H18N2O5S
- (Z)-Ethyl 2-((4-hydroxy-3-nitrobenzylidene)amino)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate325779-34-8C18H18N2O5S
- N-(Isochroman-3-ylmethyl)-3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-5-sulfonamide2034475-15-3C18H18N2O5S
- N-(Isochroman-3-ylmethyl)-N-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-5-sulfonamide2034320-75-5C18H18N2O5S
- N-([2,2'-Bifuran]-5-ylmethyl)-4-(N,N-dimethylsulfamoyl)benzamide2034251-11-9C18H18N2O5S
- 2-(3,4-Dimethoxyphenyl)-1,1-dioxo-4-prop-2-enyl-1lambda6,2,4-benzothiadiazin-3-one2549043-86-7C18H18N2O5S
- 2-(3,5-Dimethoxyphenyl)-1,1-dioxo-4-prop-2-enyl-1lambda6,2,4-benzothiadiazin-3-one2549049-53-6C18H18N2O5S
- 2Grw53wjc42840522-79-2C18H18N2O5S
- Methyl 2-methyl-3-({[(4-nitrobenzyl)sulfanyl]acetyl}amino)benzoate706771-81-5C18H18N2O5S
- N-(4,7-Dimethoxy-1,3-benzothiazol-2-yl)-3,5-dimethoxybenzamide912762-11-9C18H18N2O5S
- N-(4,7-Dimethoxy-1,3-benzothiazol-2-yl)-3,4-dimethoxybenzamide912764-17-1C18H18N2O5S
- N-(5,6-Dimethoxy-1,3-benzothiazol-2-yl)-3,5-dimethoxybenzamide895436-13-2C18H18N2O5S
- N-(5,6-Dimethoxy-1,3-benzothiazol-2-yl)-3,4-dimethoxybenzamide895437-38-4C18H18N2O5S
- 2-(1,1-Dioxido-3-oxo-1,2-benzothiazol-2(3H)-yl)-N-(4-ethoxybenzyl)acetamide932199-90-1C18H18N2O5S
- N-(1,3-Benzodioxol-5-yl)-N-[2-(2,3-dihydro-1H-indol-1-yl)-2-oxoethyl]methanesulfonamide932005-61-3C18H18N2O5S
- N-(5-Oxo-1-phenylpyrrolidin-3-yl)-2,3-dihydrobenzo[b][1,4]dioxine-6-sulfonamide896307-14-5C18H18N2O5S
- N-(1,3-Benzodioxol-5-yl)-3-[[(E)-2-phenylethenyl]sulfonylamino]propanamide1424754-13-1C18H18N2O5S
- N-(2-Oxo-1-phenylazetidin-3-yl)-3,4-dihydro-2H-1,5-benzodioxepine-7-sulfonamide1796923-23-3C18H18N2O5S
- N-(1,3-Dioxaindan-5-yl)-2-(2-phenylethenesulfonamido)propanamide1428116-10-2C18H18N2O5S
- Methyl 2-[2-(2,5-dimethylphenyl)-1,1,3-trioxo-3,4-dihydro-2H-1lambda6,2,4-benzothiadiazin-4-yl]acetate2549041-43-0C18H18N2O5S
- Methyl5-(4-methoxybenzenesulfonamido)-2-methyl-1H-indole-3-carboxylate2247103-31-5C18H18N2O5S
- N-[(1,3-Dioxaindan-5-yl)methyl]-2-(2-phenylethenesulfonamido)acetamide949265-33-2C18H18N2O5S
- 2-Ethyl-5-(4-morpholinylsulfonyl)-1H-benz[de]isoquinoline-1,3(2H)-dione1179491-43-0C18H18N2O5S
- 3-[6-Ethoxy-1-(pyridine-3-sulfonyl)-1H-indol-3-yl]-propionic acid929254-99-9C18H18N2O5S
- 3-[5-Ethoxy-1-(pyridine-3-sulfonyl)-1H-indol-3-yl]-propionic acid929254-93-3C18H18N2O5S
- N-[(2-Phenylethenesulfonyl)carbamoyl]-L-phenylalanine61299-01-2C18H18N2O5S
- N-{[5-(3,5-Dimethyl-1,2-oxazol-4-yl)furan-2-yl]methyl}-2,3-dihydro-1-benzofuran-5-sulfonamide2415621-93-9C18H18N2O5S
- 5-[(Benzyloxy)carbonyl]-3a-(1,3-thiazol-2-yl)hexahydro-1H-furo[3,4-c]pyrrole-1-carboxylic acid1250994-15-0C18H18N2O5S
- (2H-1,3-Benzodioxol-5-yl)[3-(piperidine-1-sulfonyl)pyridin-4-yl]methanone88184-97-8C18H18N2O5S
- 2,3,4-Trimethoxy-N-(6-methoxy-1,3-benzothiazol-2-yl)benzamide1180551-72-7C18H18N2O5S
- 1,3-Dibenzyl-2-oxo-2,3-dihydropyrimidin-1-ium hydrogen sulfate54424-58-7C18H18N2O5S
- 2,4,5-Trimethoxy-N-(5-methoxy-1,3-benzothiazol-2-yl)benzamide870458-11-0C18H18N2O5S
- S-[2-[4,5-Dihydro-4-(1-methylethylidene)-5-oxo-2-oxazolyl]-2-[(2-phenoxyacetyl)amino]ethenyl] ethanethioate39235-73-9C18H18N2O5S
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl (4R)-3-cyclopentanecarbonyl-1,3-thiazolidine-4-carboxylate2248202-36-8C18H18N2O5S
- 6-Acetyl-2-{[(benzyloxy)carbonyl]amino}-4H,5H,6H,7H-thieno[2,3-c]pyridine-3-carboxylic acid2757904-11-1C18H18N2O5S
- 5-{[(Benzyloxy)carbonyl]amino}-2-[(dimethylcarbamoyl)sulfanyl]benzoic acid2639457-46-6C18H18N2O5S
- 2-[4-(2-Carboxypropoxy)-3-cyanophenyl]-4-methyl-5-thiazolecarboxylic Acid 5-Ethyl Ester1572503-76-4C18H18N2O5S
- Ethyl 2-[(Z)-[(4-hydroxy-3-nitrophenyl)methylidene]amino]-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylateC18H18N2O5S
Frequently asked questions
What is the molar mass of C18H18N2O5S?
The molar mass of C18H18N2O5S is 374.41 g/mol, calculated from standard atomic weights for 18 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms, 5 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 374.0936 Da.
How many compounds have the formula C18H18N2O5S?
CompoundList lists 163 compounds with the molecular formula C18H18N2O5S, including Ethyl 2-[7-(3,4-dimethoxyphenyl)-4-oxo-3H,4H-thieno[3,2-d]pyrimidin-3-yl]acetate, N-(3-Methanesulfonamidophenyl)-2-[(3-oxo-2,3-dihydro-1H-inden-5-yl)oxy]acetamide, N-(3,4-Dimethoxyphenethyl)-7-hydroxy-5-oxo-4,5-dihydrothieno[3,2-b]pyridine-6-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 C18H18N2O5S?
C18H18N2O5S 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.