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 101 to 200 of 269 compounds
![Methyl 4-[(3-carbamoyl-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)carbamoyl]benzoate chemical structure, C18H18N2O4S, CAS 477548-56-4](/s/AURQNBRWVZKENZ-UHFFFAOYSA-N.svg)
Methyl 4-[(3-carbamoyl-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)carbamoyl]benzoate
CAS 477548-56-4C18H18N2O4S
![N-(3-Methoxyphenyl)-2-oxo-1,2,5,6-tetrahydro-4H-pyrrolo[3,2,1-ij]quinoline-8-sulfonamide chemical structure, C18H18N2O4S, CAS 896375-27-2](/s/SZKAFBBCTQSNIN-UHFFFAOYSA-N.svg)
N-(3-Methoxyphenyl)-2-oxo-1,2,5,6-tetrahydro-4H-pyrrolo[3,2,1-ij]quinoline-8-sulfonamide
CAS 896375-27-2C18H18N2O4S
![N-(4-Methoxyphenyl)-4-oxo-1,2,5,6-tetrahydro-4H-pyrrolo[3,2,1-ij]quinoline-8-sulfonamide chemical structure, C18H18N2O4S, CAS 898435-90-0](/s/QWFIPILODUVTBA-UHFFFAOYSA-N.svg)
N-(4-Methoxyphenyl)-4-oxo-1,2,5,6-tetrahydro-4H-pyrrolo[3,2,1-ij]quinoline-8-sulfonamide
CAS 898435-90-0C18H18N2O4S
![N-(2,4-Dimethylphenyl)-3-(1,1-dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)propanamide chemical structure, C18H18N2O4S, CAS 899996-19-1](/s/ITOBVWOMHFMLDP-UHFFFAOYSA-N.svg)
N-(2,4-Dimethylphenyl)-3-(1,1-dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)propanamide
CAS 899996-19-1C18H18N2O4S
![2-((4-Carbamoylphenyl)amino)-2-oxoethyl 4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate chemical structure, C18H18N2O4S, CAS 871218-26-7](/s/GTAABKTZQGLVNE-UHFFFAOYSA-N.svg)
2-((4-Carbamoylphenyl)amino)-2-oxoethyl 4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate
CAS 871218-26-7C18H18N2O4S
Benzenesulfonamide, 4-(3,4-dimethyl-2,5-dioxo-3-phenyl-1-pyrrolidinyl)-
CAS 28103-55-1C18H18N2O4S
2-(Benzylsulfanyl)-5-(3,4,5-trimethoxyphenyl)-1,3,4-oxadiazole
CAS 336181-28-3C18H18N2O4S
![N-[(3-Acetylphenyl)carbamothioyl]-3,5-dimethoxybenzamide chemical structure, C18H18N2O4S, CAS 429644-18-8](/s/ODWWUNKGKPMJJT-UHFFFAOYSA-N.svg)
N-[(3-Acetylphenyl)carbamothioyl]-3,5-dimethoxybenzamide
CAS 429644-18-8C18H18N2O4S
![4-[[2-(3,4-Dimethylphenoxy)acetyl]carbamothioylamino]benzoic acid chemical structure, C18H18N2O4S, CAS 532957-21-4](/s/UQWLUEIFFAEANO-UHFFFAOYSA-N.svg)
4-[[2-(3,4-Dimethylphenoxy)acetyl]carbamothioylamino]benzoic acid
CAS 532957-21-4C18H18N2O4S
![4-[(4-Propoxybenzoyl)carbamothioylamino]benzoic acid chemical structure, C18H18N2O4S, CAS 434308-61-9](/s/DRNPGCHVWQOQHL-UHFFFAOYSA-N.svg)
4-[(4-Propoxybenzoyl)carbamothioylamino]benzoic acid
CAS 434308-61-9C18H18N2O4S
2-(Benzylsulfonylamino)-3-(1H-indol-3-yl)propanoic acid
CAS 6297-58-1C18H18N2O4S
![N-(3-(Methylcarbamoyl)-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl)-2,3-dihydrobenzo[b][1,4]dioxine-6-carboxamide chemical structure, C18H18N2O4S, CAS 868965-65-5](/s/SPHODKHKORRHPJ-UHFFFAOYSA-N.svg)
N-(3-(Methylcarbamoyl)-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl)-2,3-dihydrobenzo[b][1,4]dioxine-6-carboxamide
CAS 868965-65-5C18H18N2O4S
2,3-Dimethoxy-N-(4-methoxy-7-methyl-1,3-benzothiazol-2-yl)benzamide
CAS 895445-10-0C18H18N2O4S
N-(5,6-Dimethoxy-3-methyl-1,3-benzothiazol-2-ylidene)-3-methoxybenzamide
CAS 895449-88-4C18H18N2O4S
N-(5,6-Dimethoxy-3-methyl-1,3-benzothiazol-2-ylidene)-4-methoxybenzamide
CAS 895450-43-8C18H18N2O4S
N-Hydroxy-3-(3-(indan-2-ylsulfamoyl)phenyl)acrylamide
CAS 414865-46-6C18H18N2O4S
![N-(2,4-Dimethylphenyl)-2-(1,1-dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)propanamide chemical structure, C18H18N2O4S, CAS 899996-75-9](/s/NIERQOHEVZYDRP-UHFFFAOYSA-N.svg)
N-(2,4-Dimethylphenyl)-2-(1,1-dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)propanamide
CAS 899996-75-9C18H18N2O4S
N-(2,6-Dimethylphenyl)-2-(1,1,3-trioxo-2,3-dihydro-1lambda6,2-benzothiazol-2-yl)propanamide
CAS 899758-14-6C18H18N2O4S
![N-[3-(Methylcarbamoyl)-4H,5H,6H-cyclopenta[b]thiophen-2-yl]-2,3-dihydro-1,4-benzodioxine-2-carboxamide chemical structure, C18H18N2O4S, CAS 893100-14-6](/s/RSQUHXNGZNLWEU-UHFFFAOYSA-N.svg)
N-[3-(Methylcarbamoyl)-4H,5H,6H-cyclopenta[b]thiophen-2-yl]-2,3-dihydro-1,4-benzodioxine-2-carboxamide
CAS 893100-14-6C18H18N2O4S
![N-(2-Cyclopropyl-2-hydroxy-2-(thiophen-2-yl)ethyl)-2-(2-oxobenzo[d]oxazol-3(2H)-yl)acetamide chemical structure, C18H18N2O4S, CAS 1421458-15-2](/s/CLNFFXUAEUILKF-UHFFFAOYSA-N.svg)
N-(2-Cyclopropyl-2-hydroxy-2-(thiophen-2-yl)ethyl)-2-(2-oxobenzo[d]oxazol-3(2H)-yl)acetamide
CAS 1421458-15-2C18H18N2O4S
![1-(4-Methoxybenzo[d]thiazol-2-yl)azetidin-3-yl 2,5-dimethylfuran-3-carboxylate chemical structure, C18H18N2O4S, CAS 1396869-25-2](/s/KBCSAPSMMUHVBZ-UHFFFAOYSA-N.svg)
1-(4-Methoxybenzo[d]thiazol-2-yl)azetidin-3-yl 2,5-dimethylfuran-3-carboxylate
CAS 1396869-25-2C18H18N2O4S
![(2,5-Dimethylfuran-3-yl)(3-((4-methoxybenzo[d]thiazol-2-yl)oxy)azetidin-1-yl)methanone chemical structure, C18H18N2O4S, CAS 1421443-00-6](/s/PSMTZJPMVNIMTO-UHFFFAOYSA-N.svg)
(2,5-Dimethylfuran-3-yl)(3-((4-methoxybenzo[d]thiazol-2-yl)oxy)azetidin-1-yl)methanone
CAS 1421443-00-6C18H18N2O4S
![2-[2,6-Dioxo-4-(thiophen-2-yl)piperidin-1-yl]-N-(2-methoxyphenyl)acetamide chemical structure, C18H18N2O4S, CAS 1396858-50-6](/s/ZSHUVLXMOOZSBA-UHFFFAOYSA-N.svg)
2-[2,6-Dioxo-4-(thiophen-2-yl)piperidin-1-yl]-N-(2-methoxyphenyl)acetamide
CAS 1396858-50-6C18H18N2O4S
Benzoxazolium, 2-(2-(phenylamino)ethenyl)-3-(3-sulfopropyl)-, inner salt
CAS 55036-57-2C18H18N2O4S
- 3-[(3-Ethoxybenzoyl)carbamothioylamino]-4-methylbenzoic acid461428-10-4C18H18N2O4S
- 3-[({[4-(Propan-2-yloxy)phenyl]carbonyl}carbamothioyl)amino]benzoic acid433973-26-3C18H18N2O4S
- Methyl 4-(3-(2-(p-tolyloxy)acetyl)thioureido)benzoate381692-60-0C18H18N2O4S
- N-(4,7-Dimethoxy-3-methyl-1,3-benzothiazol-2-ylidene)-2-methoxybenzamide868370-50-7C18H18N2O4S
- N-(4,7-Dimethoxy-3-methyl-1,3-benzothiazol-2-ylidene)-2-phenoxyacetamide868370-91-6C18H18N2O4S
- (5Z)-5-[(3-Methoxy-4-prop-2-enoxyphenyl)methylidene]-1-prop-2-enyl-2-sulfanylidene-1,3-diazinane-4,6-dione347395-62-4C18H18N2O4S
- 4-(Benzenesulfonyl)-2-(3-methoxyphenyl)-N,N-dimethyl-1,3-oxazol-5-amine620559-22-0C18H18N2O4S
- Methyl 2-[[2-(benzylamino)-2-oxoacetyl]amino]-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxylate838888-95-2C18H18N2O4S
- 5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 3-methyl-8-oxo-7-(((1-phenylcyclopropyl)carbonyl)amino)-, (6R-trans)-108098-16-4C18H18N2O4S
- 4-[({[3-(Propan-2-yloxy)phenyl]carbonyl}carbamothioyl)amino]benzoic acid532416-92-5C18H18N2O4S
- 1-[(2,5-Dimethoxyphenyl)sulfonyl]-4-methyl-2-phenyl-1H-imidazole853902-38-2C18H18N2O4S
- N-(5,6-Dimethoxy-3-methyl-1,3-benzothiazol-2-ylidene)-2-methoxybenzamide895439-03-9C18H18N2O4S
- 2-(1,1-Dioxido-3-oxo-1,2-benzothiazol-2(3H)-yl)-N-ethyl-N-(3-methylphenyl)acetamide899995-50-7C18H18N2O4S
- N-(2,3-Dimethylphenyl)-2-(1,1-dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)propanamide899955-40-9C18H18N2O4S
- 3-(1,1-Dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)-N-phenethylpropanamide899757-22-3C18H18N2O4S
- 3-{N-[3-(N-Cyclopropylcarbamoyl)-4-phenyl-2-thienyl]carbamoyl}propanoic acid774192-03-9C18H18N2O4S
- (E)-2,3-Dimethoxy-N-(4-methoxy-3-methylbenzo[d]thiazol-2(3H)-ylidene)benzamide895441-99-3C18H18N2O4S
- (E)-2,3-Dimethoxy-N-(6-methoxy-3-methylbenzo[d]thiazol-2(3H)-ylidene)benzamide895442-14-5C18H18N2O4S
- 2-(1,1-Dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)-N-(2-ethylphenyl)propanamide899955-11-4C18H18N2O4S
- 2-(1,1-Dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)-N-(4-ethylphenyl)propanamide899757-83-6C18H18N2O4S
- Methyl 5-(((1-benzyl-5-(hydroxymethyl)-1H-imidazol-2-yl)thio)methyl)furan-2-carboxylate941997-39-3C18H18N2O4S
- 4-(3-(Isopropylsulfonyl)benzoyl)-3,4-dihydroquinoxalin-2(1H)-one946282-11-7C18H18N2O4S
- Methyl 4-[4-(dimethylamino)phenyl]-4H-1,4-benzothiazine-2-carboxylate 1,1-dioxide1291839-65-0C18H18N2O4S
- N-[3-(2-Oxopyrrolidin-1-yl)phenyl]-2,3-dihydro-1-benzofuran-5-sulfonamide1325499-04-4C18H18N2O4S
- Methyl (2S)-2-(N-benzyl4-cyanobenzenesulfonamido)propanoate1445775-49-4C18H18N2O4S
- Lsd1/hdac-IN-13056145-98-0C18H18N2O4S
- 2,5-Bis(3,4-dimethoxyphenyl)-1,3,4-thiadiazole49773-64-0C18H18N2O4S
- N-(Furan-2-ylmethyl)-2-[methyl(naphthalen-2-ylsulfonyl)amino]acetamide701286-33-1C18H18N2O4S
- 3,5,6-Trimethyl-N-(4-sulfamoylphenyl)-1-benzofuran-2-carboxamide622349-10-4C18H18N2O4S
- 3-[(3-Propan-2-yloxybenzoyl)carbamothioylamino]benzoic acid433956-71-9C18H18N2O4S
- 3-({[(4-Ethoxyphenyl)carbonyl]carbamothioyl}amino)-4-methylbenzoic acid433962-33-5C18H18N2O4S
- 2-[({[4-(Propan-2-yloxy)phenyl]carbonyl}carbamothioyl)amino]benzoic acid433964-26-2C18H18N2O4S
- Ethyl 4-(1,3-benzodioxol-5-ylmethylcarbamothioylamino)benzoate351165-94-1C18H18N2O4S
- 3-({[(3-Propoxyphenyl)carbonyl]carbamothioyl}amino)benzoic acid433944-97-9C18H18N2O4S
- 4-Methyl-3-[[[[(4-methylphenoxy)acetyl]amino]thioxomethyl]amino]-benzoic acid433695-99-9C18H18N2O4S
- 1-(2,3-Dihydro-1,4-benzodioxine-2-carbonyl)-4-(thiophene-2-carbonyl)piperazine861211-40-7C18H18N2O4S
- Methyl 6-acetyl-2-benzamido-5,7-dihydro-4H-thieno[2,3-c]pyridine-3-carboxylate887893-11-0C18H18N2O4S
- 4-[[2-(2,4-Dimethylphenoxy)acetyl]carbamothioylamino]benzoic acid586391-32-4C18H18N2O4S
- 2-Methyl-3-[[2-(2-methylphenoxy)acetyl]carbamothioylamino]benzoic acid533919-67-4C18H18N2O4S
- 3-(1,1-Dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)-N-(2-ethylphenyl)propanamide899757-30-3C18H18N2O4S
- Methyl 4-((3-(methylcarbamoyl)-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl)carbamoyl)benzoate893096-96-3C18H18N2O4S
- N-(5,6-Dimethoxy-1,3-benzothiazol-2-yl)-3-phenoxypropanamide895438-56-9C18H18N2O4S
- 2-(5-(3,4-Dimethoxyphenyl)isoxazol-3-yl)-N-(thiophen-2-ylmethyl)acetamide953158-46-8C18H18N2O4S
- 3-(4-Methyl-1,1-dioxido-3-oxoisothiazolidin-2-yl)-N-(p-tolyl)benzamide919633-61-7C18H18N2O4S
- N-(4-Acetylphenyl)-3-(cyclopropylsulfamoyl)benzamide1018068-09-1C18H18N2O4S
- 3-(7-Methoxy-4-methyl-2-oxo-2H-chromen-6-yl)-N-(5-methyl-1,3-thiazol-2-yl)propanamide1010939-02-2C18H18N2O4S
- N-(2,4-Dimethoxyphenyl)-3-(3-oxo-1,2-benzothiazol-2(3H)-yl)propanamide1219588-42-7C18H18N2O4S
- N-(4-Ethoxyphenyl)-4-ethyl-7-hydroxy-5-oxo-4H,5H-thieno[3,2-b]pyridine-6-carboxamide1251687-81-6C18H18N2O4S
- 3-({[(3-Ethoxyphenyl)carbonyl]carbamothioyl}amino)-2-methylbenzoic acid532434-13-2C18H18N2O4S
- N-(4,7-Dimethoxy-1,3-benzothiazol-2-yl)-3-phenoxypropanamide868230-63-1C18H18N2O4S
- N-(4,7-Dimethoxy-3-methyl-1,3-benzothiazol-2-ylidene)-3-methoxybenzamide868369-14-6C18H18N2O4S
- N-(4,7-Dimethoxy-3-methyl-1,3-benzothiazol-2-ylidene)-4-methoxybenzamide868369-18-0C18H18N2O4S
- N-[(4-Acetylphenyl)carbamothioyl]-3,4-dimethoxybenzamide347339-63-3C18H18N2O4S
- 4-({[(3-Propoxyphenyl)carbonyl]carbamothioyl}amino)benzoic acid434309-44-1C18H18N2O4S
- N-(6-Methoxy-1,3-benzothiazol-2-yl)-2-(2-methoxyphenoxy)propanamide831239-21-5C18H18N2O4S
- Ethanone, 1-(4-hydroxy-5,7-dimethyl-2-(phenylmethyl)-2H-pyrido(3,2-e)-1,2-thiazin-3-yl)-, S,S-dioxide108586-70-5C18H18N2O4S
- 4-Methyl-3-[[2-(3-methylphenoxy)acetyl]carbamothioylamino]benzoic acid461402-48-2C18H18N2O4S
- N-(1,3-Benzodioxol-5-ylmethyl)-3-(3,3-dimethyl-2-oxo-1-azetanyl)-2-thiophenecarboxamide866156-13-0C18H18N2O4S
- (E)-2,6-Dimethoxy-N-(6-methoxy-3-methylbenzo[d]thiazol-2(3H)-ylidene)benzamide850782-10-4C18H18N2O4S
- (E)-2,4-Dimethoxy-N-(6-methoxy-3-methylbenzo[d]thiazol-2(3H)-ylidene)benzamide850781-90-7C18H18N2O4S
- 2-[[2-(2,4-Dimethylphenoxy)acetyl]carbamothioylamino]benzoic acid461401-62-7C18H18N2O4S
- 3-[(4-Propoxybenzoyl)carbamothioylamino]benzoic acid462095-64-3C18H18N2O4S
- 3-[[2-(2,4-Dimethylphenoxy)acetyl]carbamothioylamino]benzoic acid461408-63-9C18H18N2O4S
- 1-Dibenzofuran-2-ylsulfonylpiperidine-4-carboxamide893775-00-3C18H18N2O4S
- (5E)-5-(Dimethylaminomethylidene)-1,1-dioxo-3-(4-phenoxyphenyl)-1,3-thiazolidin-4-one338779-53-6C18H18N2O4S
- 2,4-Dimethoxy-N-(4-methoxy-7-methylbenzo[d]thiazol-2-yl)benzamide912762-35-7C18H18N2O4S
- 3,4-Dimethoxy-N-(4-methoxy-7-methyl-1,3-benzothiazol-2-yl)benzamide912764-15-9C18H18N2O4S
- N-(2,6-Dimethylphenyl)-3-(1,1-dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)propanamide899757-44-9C18H18N2O4S
- 2-(1,1-Dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)-N-ethyl-N-(o-tolyl)acetamide899756-88-8C18H18N2O4S
- 3-[2-(3,4-Dimethoxyphenyl)-2-oxoethyl]-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-one1003657-99-5C18H18N2O4S
- 2-(5-Ethyl-1-benzofuran-3-yl)-N-(4-sulfamoylphenyl)acetamide879928-21-9C18H18N2O4S
- 2-(4,6-Dimethyl-1-benzofuran-3-yl)-N-(4-sulfamoylphenyl)acetamide880787-26-8C18H18N2O4S
- N-(2,5-Dimethylphenyl)-2-(1,1-dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)propanamide899758-12-4C18H18N2O4S
- N-(3,4-Dimethylphenyl)-2-(1,1-dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)propanamide899955-42-1C18H18N2O4S
- N-(3,5-Dimethylphenyl)-2-(1,1-dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)propanamide899996-76-0C18H18N2O4S
- N-(4-Methoxyphenyl)-4,8-dimethyl-2-oxo-1,2-dihydroquinoline-6-sulfonamide899998-85-7C18H18N2O4S
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 Methyl 4-[(3-carbamoyl-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)carbamoyl]benzoate, N-(3-Methoxyphenyl)-2-oxo-1,2,5,6-tetrahydro-4H-pyrrolo[3,2,1-ij]quinoline-8-sulfonamide, N-(4-Methoxyphenyl)-4-oxo-1,2,5,6-tetrahydro-4H-pyrrolo[3,2,1-ij]quinoline-8-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 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.