Molecular formula
C18H18N4O5S
64 compounds have this formula on CompoundList.
- Molar mass
- 402.43g/mol
- Monoisotopic mass
- 402.0998Da
- Atoms
- 46
- Elements
- 5
- Rings plus double bonds
- 12
The formula C18H18N4O5S describes a molecule made of 18 carbon atoms, 18 hydrogen atoms, 4 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 × 1853.72%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 184.51%1.008 × 18 = 18.144 g/mol
- N Nitrogen × 413.92%14.007 × 4 = 56.028 g/mol
- O Oxygen × 519.88%15.999 × 5 = 79.995 g/mol
- S Sulfur × 17.97%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C18H18N4O5S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 64 of 64 compounds
![4-(Dimethylsulfamoyl)-N-[5-(2-methoxyphenyl)-1,3,4-oxadiazol-2-yl]benzamide chemical structure, C18H18N4O5S, CAS 501351-86-6](/s/ZAPZVLIJPBBDTM-UHFFFAOYSA-N.svg)
4-(Dimethylsulfamoyl)-N-[5-(2-methoxyphenyl)-1,3,4-oxadiazol-2-yl]benzamide
CAS 501351-86-6C18H18N4O5S
![N-[5-(Methoxymethyl)-1,3,4-oxadiazol-2-yl]-4-[methyl(phenyl)sulfamoyl]benzamide chemical structure, C18H18N4O5S, CAS 850936-12-8](/s/DHQFJUBYZAXYDN-UHFFFAOYSA-N.svg)
N-[5-(Methoxymethyl)-1,3,4-oxadiazol-2-yl]-4-[methyl(phenyl)sulfamoyl]benzamide
CAS 850936-12-8C18H18N4O5S
![N-[(4-{[(4-Nitrophenoxy)acetyl]amino}phenyl)carbamothioyl]propanamide chemical structure, C18H18N4O5S, CAS 532409-85-1](/s/LVTUPRXONRVHRJ-UHFFFAOYSA-N.svg)
N-[(4-{[(4-Nitrophenoxy)acetyl]amino}phenyl)carbamothioyl]propanamide
CAS 532409-85-1C18H18N4O5S
N-((5-((2-((2-Ethoxyphenyl)amino)-2-oxoethyl)thio)-1,3,4-oxadiazol-2-yl)methyl)furan-2-carboxamide
CAS 851862-52-7C18H18N4O5S
![N-[[5-[2-(4-Ethoxyanilino)-2-oxoethyl]sulfanyl-1,3,4-oxadiazol-2-yl]methyl]furan-2-carboxamide chemical structure, C18H18N4O5S, CAS 851862-20-9](/s/GXBCCIDLVDFNNR-UHFFFAOYSA-N.svg)
N-[[5-[2-(4-Ethoxyanilino)-2-oxoethyl]sulfanyl-1,3,4-oxadiazol-2-yl]methyl]furan-2-carboxamide
CAS 851862-20-9C18H18N4O5S
![N-[5-(Furan-2-yl)-1,3,4-oxadiazol-2-yl]-4-piperidin-1-ylsulfonylbenzamide chemical structure, C18H18N4O5S, CAS 905679-45-0](/s/HTSBSGOTVOAHCR-UHFFFAOYSA-N.svg)
N-[5-(Furan-2-yl)-1,3,4-oxadiazol-2-yl]-4-piperidin-1-ylsulfonylbenzamide
CAS 905679-45-0C18H18N4O5S
![2-((2-(4-Methoxyphenyl)-6,8-dimethyl-5,7-dioxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)propanoic acid chemical structure, C18H18N4O5S, CAS 852169-39-2](/s/APWVUNVUVIFJOU-UHFFFAOYSA-N.svg)
2-((2-(4-Methoxyphenyl)-6,8-dimethyl-5,7-dioxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)propanoic acid
CAS 852169-39-2C18H18N4O5S
![6-(4-(Furan-2-carbonyl)piperazine-1-carbonyl)-1,3-dimethylthieno[2,3-d]pyrimidine-2,4(1H,3H)-dione chemical structure, C18H18N4O5S, CAS 946206-92-4](/s/UWCULQABJJFNOT-UHFFFAOYSA-N.svg)
6-(4-(Furan-2-carbonyl)piperazine-1-carbonyl)-1,3-dimethylthieno[2,3-d]pyrimidine-2,4(1H,3H)-dione
CAS 946206-92-4C18H18N4O5S
![4-(Dimethylsulfamoyl)-N-[5-(3-methoxyphenyl)-1,3,4-oxadiazol-2-yl]benzamide chemical structure, C18H18N4O5S, CAS 533869-81-7](/s/PLQOFCWTXWFQKI-UHFFFAOYSA-N.svg)
4-(Dimethylsulfamoyl)-N-[5-(3-methoxyphenyl)-1,3,4-oxadiazol-2-yl]benzamide
CAS 533869-81-7C18H18N4O5S
![4-(Dimethylsulfamoyl)-N-[5-(4-methoxyphenyl)-1,3,4-oxadiazol-2-yl]benzamide chemical structure, C18H18N4O5S, CAS 442881-08-5](/s/MHKGJTRSKWGCKG-UHFFFAOYSA-N.svg)
4-(Dimethylsulfamoyl)-N-[5-(4-methoxyphenyl)-1,3,4-oxadiazol-2-yl]benzamide
CAS 442881-08-5C18H18N4O5S
![N-(3-Methoxyphenyl)-2-[(6-{[(4-methyl-4H-1,2,4-triazol-3-yl)sulfanyl]methyl}-4-oxo-4H-pyran-3-yl)oxy]acetamide chemical structure, C18H18N4O5S, CAS 899745-18-7](/s/PQGCNEHESLWBNW-UHFFFAOYSA-N.svg)
N-(3-Methoxyphenyl)-2-[(6-{[(4-methyl-4H-1,2,4-triazol-3-yl)sulfanyl]methyl}-4-oxo-4H-pyran-3-yl)oxy]acetamide
CAS 899745-18-7C18H18N4O5S
![N-(4-(2-((2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)amino)-2-oxoethyl)thiazol-2-yl)-5-oxopyrrolidine-2-carboxamide chemical structure, C18H18N4O5S, CAS 1048678-48-3](/s/ZQHVJGPNGOSYGS-UHFFFAOYSA-N.svg)
N-(4-(2-((2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)amino)-2-oxoethyl)thiazol-2-yl)-5-oxopyrrolidine-2-carboxamide
CAS 1048678-48-3C18H18N4O5S
4-((4-Methoxyphenyl)sulfonyl)-N-(5-(pyridin-4-yl)-1,3,4-oxadiazol-2-yl)butanamide
CAS 941929-92-6C18H18N4O5S
4-(3-(Furan-2-yl)-6-oxopyridazin-1(6H)-yl)-N-(4-sulfamoylphenyl)butanamide
CAS 1021037-42-2C18H18N4O5S
![1-(1,1-Dioxidotetrahydrothiophen-3-yl)-5-(2-(4-methoxyphenyl)-2-oxoethyl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one chemical structure, C18H18N4O5S, CAS 1105210-39-6](/s/HVLCHNPVEHWNFI-UHFFFAOYSA-N.svg)
1-(1,1-Dioxidotetrahydrothiophen-3-yl)-5-(2-(4-methoxyphenyl)-2-oxoethyl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one
CAS 1105210-39-6C18H18N4O5S
![Methyl 4-((1-(1,1-dioxidotetrahydrothiophen-3-yl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)methyl)benzoate chemical structure, C18H18N4O5S, CAS 1040647-24-2](/s/RAUSNKPQWIQCLV-UHFFFAOYSA-N.svg)
Methyl 4-((1-(1,1-dioxidotetrahydrothiophen-3-yl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)methyl)benzoate
CAS 1040647-24-2C18H18N4O5S
N-(4-(1-Acetyl-5-(3-nitrophenyl)-4,5-dihydro-1H-pyrazol-3-yl)phenyl)methanesulfonamide
CAS 851717-91-4C18H18N4O5S
![Benzyl 2-(1-(1,1-dioxidotetrahydrothiophen-3-yl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acetate chemical structure, C18H18N4O5S, CAS 1040647-04-8](/s/VMWDQQDZPXMAIG-UHFFFAOYSA-N.svg)
Benzyl 2-(1-(1,1-dioxidotetrahydrothiophen-3-yl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acetate
CAS 1040647-04-8C18H18N4O5S
![N-[3-[2-Acetyl-3-(3-nitrophenyl)-3,4-dihydropyrazol-5-yl]phenyl]methanesulfonamide chemical structure, C18H18N4O5S, CAS 851719-02-3](/s/DBOTWWGDUKBXBS-UHFFFAOYSA-N.svg)
N-[3-[2-Acetyl-3-(3-nitrophenyl)-3,4-dihydropyrazol-5-yl]phenyl]methanesulfonamide
CAS 851719-02-3C18H18N4O5S
Ethyl 6-(2-amino-2-oxoethyl)sulfanyl-5-cyano-2-methyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3-carboxylate
CAS 111853-34-0C18H18N4O5S
![Ethyl 7-methyl-2-(methylthio)-5-(3-nitrophenyl)-4-oxo-3,4,5,8-tetrahydropyrido[2,3-d]pyrimidine-6-carboxylate chemical structure, C18H18N4O5S, CAS 321681-80-5](/s/LXTKTBPRORZVMS-UHFFFAOYSA-N.svg)
Ethyl 7-methyl-2-(methylthio)-5-(3-nitrophenyl)-4-oxo-3,4,5,8-tetrahydropyrido[2,3-d]pyrimidine-6-carboxylate
CAS 321681-80-5C18H18N4O5S
![Methyl 2-(ethylsulfanyl)-7-methyl-5-(4-nitrophenyl)-4-oxo-3,4,5,8-tetrahydropyrido[2,3-d]pyrimidine-6-carboxylate chemical structure, C18H18N4O5S, CAS 537004-58-3](/s/HKKZFSTZVIXJDN-UHFFFAOYSA-N.svg)
Methyl 2-(ethylsulfanyl)-7-methyl-5-(4-nitrophenyl)-4-oxo-3,4,5,8-tetrahydropyrido[2,3-d]pyrimidine-6-carboxylate
CAS 537004-58-3C18H18N4O5S
2-(2,4-Dinitrophenylthio)-1-(4-phenylpiperazinyl)ethan-1-one
CAS 459175-32-7C18H18N4O5S
![Ethyl 2-{[3-(2-hydroxy-5-oxo-4,5-dihydro-3H-1,4-benzodiazepin-3-yl)propanoyl]amino}-1,3-thiazole-4-carboxylate chemical structure, C18H18N4O5S, CAS 1574293-62-1](/s/GPODKILKBXSBPG-UHFFFAOYSA-N.svg)
Ethyl 2-{[3-(2-hydroxy-5-oxo-4,5-dihydro-3H-1,4-benzodiazepin-3-yl)propanoyl]amino}-1,3-thiazole-4-carboxylate
CAS 1574293-62-1C18H18N4O5S
- 2-(2,4-Dioxo-1H-quinazolin-3-yl)-N-[2-(4-sulfamoylphenyl)ethyl]acetamide896381-59-2C18H18N4O5S
- 1-Cyclopentyl-4-methyl-1H-pyrazolo[3,4-b]pyridin-6-yl 3-nitrobenzene-1-sulfonate929972-81-6C18H18N4O5S
- Methyl 2-(2-(5,7-dioxo-6-propyl-6,7-dihydroisothiazolo[4,3-d]pyrimidin-4(5H)-yl)acetamido)benzoate1251657-50-7C18H18N4O5S
- Ethyl 4-(2-{4-methyl-3,5-dioxo-2H,3H,4H,5H,6H-pyridazino[4,5-b][1,4]thiazin-6-yl}acetamido)benzoate1286709-38-3C18H18N4O5S
- Methyl 2-{[3-(5,7-dioxo-5,7-dihydro-6H-pyrrolo[3,4-b]pyridin-6-yl)propanoyl]amino}-5-(propan-2-yl)-1,3-thiazole-4-carboxylate1435904-68-9C18H18N4O5S
- Methyl 2-({[3-(furan-2-yl)-6-oxopyridazin-1(6H)-yl]acetyl}amino)-5-(propan-2-yl)-1,3-thiazole-4-carboxylate1435982-91-4C18H18N4O5S
- 4-(3-(3-(Furan-2-yl)-1,2,4-oxadiazol-5-yl)azetidine-1-carbonyl)-N,N-dimethylbenzenesulfonamide1428379-91-2C18H18N4O5S
- N'-(4-Carbamoylphenyl)-N-[3-(1,1-dioxo-1lambda6,2-thiazolidin-2-yl)phenyl]ethanediamide941998-14-7C18H18N4O5S
- 2-(2-Methoxyethyl)-1,3-dioxo-N-[(2E)-5-(tetrahydrofuran-2-yl)-1,3,4-thiadiazol-2(3H)-ylidene]-2,3-dihydro-1H-isoindole-5-carboxamide1144434-79-6C18H18N4O5S
- 2-[(2H-1,3-Benzodioxol-5-yl)methyl]-8-(pyrrolidine-1-sulfonyl)-2H,3H-[1,2,4]triazolo[4,3-a]pyridin-3-one1251584-40-3C18H18N4O5S
- Methyl 4-{2-[5,7-dioxo-6-(propan-2-yl)-4H,5H,6H,7H-[1,2]thiazolo[4,3-d]pyrimidin-4-yl]acetamido}benzoate1251604-16-6C18H18N4O5S
- N-(2,3-Dihydro-1,4-benzodioxin-6-yl)-2-[5,7-dioxo-6-(propan-2-yl)-4H,5H,6H,7H-[1,2]thiazolo[4,3-d]pyrimidin-4-yl]acetamide1251627-83-4C18H18N4O5S
- Ethyl 2-{[(6-hydroxy-2-methyl-4-oxoquinazolin-3(4H)-yl)acetyl]amino}-4-methyl-1,3-thiazole-5-carboxylate1374516-81-0C18H18N4O5S
- Methyl (2E)-2-{[3-(2-hydroxy-5-oxo-4,5-dihydro-3H-1,4-benzodiazepin-3-yl)propanoyl]imino}-4-methyl-2,3-dihydro-1,3-thiazole-5-carboxylate1401534-00-6C18H18N4O5S
- Methyl 2-{[3-(1,3-dioxo-1,3-dihydro-2H-pyrrolo[3,4-c]pyridin-2-yl)propanoyl]amino}-5-(propan-2-yl)-1,3-thiazole-4-carboxylate1435996-42-1C18H18N4O5S
- N-[(4-{[(2-Nitrophenoxy)acetyl]amino}phenyl)carbamothioyl]propanamide532954-63-5C18H18N4O5S
- 4-Methoxy-3-nitro-N-[[4-(propanoylamino)phenyl]carbamothioyl]benzamide428447-63-6C18H18N4O5S
- 4-Methoxy-3-nitro-N-[4-(propanoylcarbamothioylamino)phenyl]benzamide530131-67-0C18H18N4O5S
- Methyl 4-methoxy-2-((3-(methylsulfonamido)quinoxalin-2-yl)amino)benzoate1050512-31-6C18H18N4O5S
- 6-(Methoxymethyl)-1,3-dimethyl-5-{[(4-nitrophenyl)methyl]sulfanyl}-1H,2H,3H,4H-pyrido[2,3-d]pyrimidine-2,4-dione946337-46-8C18H18N4O5S
- 6-(Methoxymethyl)-1,3-dimethyl-5-{[(3-nitrophenyl)methyl]sulfanyl}-1H,2H,3H,4H-pyrido[2,3-d]pyrimidine-2,4-dione946342-43-4C18H18N4O5S
- N-(4-(2-((Benzo[d][1,3]dioxol-5-ylmethyl)amino)-2-oxoethyl)thiazol-2-yl)-5-oxopyrrolidine-2-carboxamide1105682-46-9C18H18N4O5S
- (Z)-Ethyl 2-(2-((1-methyl-1H-pyrazole-3-carbonyl)imino)-6,7-dihydro-[1,4]dioxino[2',3':4,5]benzo[1,2-d]thiazol-3(2H)-yl)acetate1203443-38-2C18H18N4O5S
- Ethyl 3-(2-{4-methyl-3,5-dioxo-2H,3H,4H,5H,6H-pyridazino[4,5-b][1,4]thiazin-6-yl}acetamido)benzoate1251596-31-2C18H18N4O5S
- Methyl 2-{[(6-isopropyl-5,7-dioxo-6,7-dihydroisothiazolo[4,3-d]pyrimidin-4(5H)-yl)acetyl]amino}benzoate1251544-97-4C18H18N4O5S
- 2-{6-Cyclopropyl-5,7-dioxo-4H,5H,6H,7H-[1,2]thiazolo[4,3-d]pyrimidin-4-yl}-N-(3,5-dimethoxyphenyl)acetamide1251614-40-0C18H18N4O5S
- (E)-N-(5-(2-Methylthiazol-4-yl)-1,3,4-oxadiazol-2-yl)-3-(3,4,5-trimethoxyphenyl)acrylamide1334377-13-7C18H18N4O5S
- Sydnone imine, 3-(1-methyl-2-phenylethyl)-N-(((4-sulfophenyl)amino)carbonyl)-, dihydrate117015-70-0C18H18N4O5S
- N-{1-[(4-Ethylphenoxy)methyl]-1H-pyrazol-4-yl}-4-nitrobenzenesulfonamide1005684-95-6C18H18N4O5S
- 1-[4-(2,1,3-Benzoxadiazol-4-ylsulfonyl)piperazin-1-yl]-2-phenoxyethanone1010894-89-9C18H18N4O5S
- 2-((9-Methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-2-yl)oxy)-N-(4-sulfamoylbenzyl)acetamide1105251-29-3C18H18N4O5S
- 3-(4-((4-Methyl-4H-1,2,4-triazol-3-yl)sulfonyl)piperidine-1-carbonyl)-2H-chromen-2-one1448073-46-8C18H18N4O5S
- 3-Methyl-2-oxo-N-((2-(2-oxopyrrolidin-1-yl)pyridin-4-yl)methyl)-2,3-dihydrobenzo[d]oxazole-5-sulfonamide2034586-41-7C18H18N4O5S
- Inosine, 6-S-(2-oxo-2-phenylethyl)-6-thio-51375-22-5C18H18N4O5S
- (1,3-Dimethyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)methyl 2-(furan-2-yl)-4-methyl-6-(methylsulfanyl)pyrimidine-5-carboxylate1016106-76-5C18H18N4O5S
- [4-(2,1,3-Benzoxadiazol-4-ylsulfonyl)piperazin-1-yl](3-methoxyphenyl)methanone1010907-01-3C18H18N4O5S
- [4-(2,1,3-Benzoxadiazol-4-ylsulfonyl)piperazin-1-yl](2-methoxyphenyl)methanone1010888-28-4C18H18N4O5S
- Methyl 5-[(2-ethoxy-4-{[(5-sulfanylidene-1,5-dihydro-4H-1,2,4-triazol-4-yl)imino]methyl}phenoxy)methyl]furan-2-carboxylate7168-25-4C18H18N4O5S
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 3-{[5-(2-methylpropyl)-1,3,4-thiadiazol-2-yl]carbamoyl}propanoate2248289-47-4C18H18N4O5S
- 5,6-Dimethyl-3-(4-nitrophenyl)-1,1-dioxo-N-phenyl-3,6-dihydro-2H-1lambda6,2,6-thiadiazine-4-carboxamide2975283-01-1C18H18N4O5S
Frequently asked questions
What is the molar mass of C18H18N4O5S?
The molar mass of C18H18N4O5S is 402.43 g/mol, calculated from standard atomic weights for 18 carbon atoms, 18 hydrogen atoms, 4 nitrogen atoms, 5 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 402.0998 Da.
How many compounds have the formula C18H18N4O5S?
CompoundList lists 64 compounds with the molecular formula C18H18N4O5S, including 4-(Dimethylsulfamoyl)-N-[5-(2-methoxyphenyl)-1,3,4-oxadiazol-2-yl]benzamide, N-[5-(Methoxymethyl)-1,3,4-oxadiazol-2-yl]-4-[methyl(phenyl)sulfamoyl]benzamide, N-[(4-{[(4-Nitrophenoxy)acetyl]amino}phenyl)carbamothioyl]propanamide. 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 C18H18N4O5S?
C18H18N4O5S has a degree of unsaturation of 12. 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.