Molecular formula
C18H21N3O4S2
68 compounds have this formula on CompoundList.
- Molar mass
- 407.50g/mol
- Monoisotopic mass
- 407.0973Da
- Atoms
- 48
- Elements
- 5
- Rings plus double bonds
- 10
The formula C18H21N3O4S2 describes a molecule made of 18 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms, 4 oxygen atoms and 2 sulfur atoms. 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 × 1853.05%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 215.19%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 310.31%14.007 × 3 = 42.021 g/mol
- O Oxygen × 415.70%15.999 × 4 = 63.996 g/mol
- S Sulfur × 215.73%32.06 × 2 = 64.120 g/mol
Look up another formula
Compounds with the formula C18H21N3O4S2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 68 of 68 compounds
Razupenem
CAS 426253-04-5C18H21N3O4S2
2-(4-((4-Methylpiperidin-1-yl)sulfonyl)benzamido)thiophene-3-carboxamide
CAS 864940-96-5C18H21N3O4S2
![N-[4-(2-Ethylsulfonyl-3-phenyl-3,4-dihydropyrazol-5-yl)phenyl]methanesulfonamide chemical structure, C18H21N3O4S2, CAS 851781-29-8](/s/JQOMFXLNIZTRGX-UHFFFAOYSA-N.svg)
N-[4-(2-Ethylsulfonyl-3-phenyl-3,4-dihydropyrazol-5-yl)phenyl]methanesulfonamide
CAS 851781-29-8C18H21N3O4S2
![N-{3-[1-(Ethanesulfonyl)-5-phenyl-4,5-dihydro-1H-pyrazol-3-yl]phenyl}methanesulfonamide chemical structure, C18H21N3O4S2, CAS 851782-59-7](/s/YVAQAMFCMYPMAO-UHFFFAOYSA-N.svg)
N-{3-[1-(Ethanesulfonyl)-5-phenyl-4,5-dihydro-1H-pyrazol-3-yl]phenyl}methanesulfonamide
CAS 851782-59-7C18H21N3O4S2
![N-{6-[(Diallylamino)sulfonyl]-1,3-benzothiazol-2-yl}tetrahydro-2-furancarboxamide chemical structure, C18H21N3O4S2, CAS 692762-35-9](/s/SJMFUKVMVCBOBF-UHFFFAOYSA-N.svg)
N-{6-[(Diallylamino)sulfonyl]-1,3-benzothiazol-2-yl}tetrahydro-2-furancarboxamide
CAS 692762-35-9C18H21N3O4S2
N-(3-(1-(Methylsulfonyl)-5-phenyl-4,5-dihydro-1H-pyrazol-3-yl)phenyl)ethanesulfonamide
CAS 851783-22-7C18H21N3O4S2
2-(4-((2-Methylpiperidin-1-yl)sulfonyl)benzamido)thiophene-3-carboxamide
CAS 864940-97-6C18H21N3O4S2
![N'-(4-Methylphenyl)-N-{[1-(thiophene-2-sulfonyl)pyrrolidin-2-yl]methyl}ethanediamide chemical structure, C18H21N3O4S2, CAS 896294-26-1](/s/NUQYDCSRAGQAEQ-UHFFFAOYSA-N.svg)
N'-(4-Methylphenyl)-N-{[1-(thiophene-2-sulfonyl)pyrrolidin-2-yl]methyl}ethanediamide
CAS 896294-26-1C18H21N3O4S2
N-(3-(1-(Methylsulfonyl)-5-(p-tolyl)-4,5-dihydro-1H-pyrazol-3-yl)phenyl)methanesulfonamide
CAS 851782-08-6C18H21N3O4S2
![N-(2,5-Dimethoxyphenyl)-2-[(3-ethyl-4-oxo-6,7-dihydrothieno[3,2-d]pyrimidin-2-yl)sulfanyl]acetamide chemical structure, C18H21N3O4S2, CAS 893366-04-6](/s/UHQNIZAFYLQUQH-UHFFFAOYSA-N.svg)
N-(2,5-Dimethoxyphenyl)-2-[(3-ethyl-4-oxo-6,7-dihydrothieno[3,2-d]pyrimidin-2-yl)sulfanyl]acetamide
CAS 893366-04-6C18H21N3O4S2
N-Propyl-N'-(1-thiophen-2-ylsulfonyl-3,4-dihydro-2H-quinolin-7-yl)oxamide
CAS 898430-28-9C18H21N3O4S2
N'-Propan-2-yl-N-(1-thiophen-2-ylsulfonyl-3,4-dihydro-2H-quinolin-7-yl)oxamide
CAS 898414-17-0C18H21N3O4S2
1-(4-Acetylphenyl)sulfonyl-N-(5-methyl-1,3-thiazol-2-yl)piperidine-4-carboxamide
CAS 878961-54-7C18H21N3O4S2
![N-(3,4-Dimethoxyphenyl)-2-({3-ethyl-4-oxo-3H,4H,6H,7H-thieno[3,2-d]pyrimidin-2-yl}sulfanyl)acetamide chemical structure, C18H21N3O4S2, CAS 869076-52-8](/s/VKSPCIPSHRDAGE-UHFFFAOYSA-N.svg)
N-(3,4-Dimethoxyphenyl)-2-({3-ethyl-4-oxo-3H,4H,6H,7H-thieno[3,2-d]pyrimidin-2-yl}sulfanyl)acetamide
CAS 869076-52-8C18H21N3O4S2
N1-benzyl-N2-((1-(thiophen-2-ylsulfonyl)pyrrolidin-2-yl)methyl)oxalamide
CAS 896293-63-3C18H21N3O4S2
N1-((1-(thiophen-2-ylsulfonyl)pyrrolidin-2-yl)methyl)-N2-(o-tolyl)oxalamide
CAS 896283-14-0C18H21N3O4S2
N1-((1-(thiophen-2-ylsulfonyl)pyrrolidin-2-yl)methyl)-N2-(m-tolyl)oxalamide
CAS 896294-68-1C18H21N3O4S2
![N-Butyl-4-[(1,1-dioxo-1,2-benzothiazol-3-yl)amino]-N-methylbenzenesulfonamide chemical structure, C18H21N3O4S2, CAS 831236-57-8](/s/NKOIDPKTHTZBQP-UHFFFAOYSA-N.svg)
N-Butyl-4-[(1,1-dioxo-1,2-benzothiazol-3-yl)amino]-N-methylbenzenesulfonamide
CAS 831236-57-8C18H21N3O4S2
![1-[(4-Methylsulfanylphenyl)methyl]-4-(4-nitrophenyl)sulfonylpiperazine chemical structure, C18H21N3O4S2, CAS 429625-25-2](/s/ZOEXRPRPWVFGRH-UHFFFAOYSA-N.svg)
1-[(4-Methylsulfanylphenyl)methyl]-4-(4-nitrophenyl)sulfonylpiperazine
CAS 429625-25-2C18H21N3O4S2
![1-[(4-Methylsulfanylphenyl)methyl]-4-(2-nitrophenyl)sulfonylpiperazine chemical structure, C18H21N3O4S2, CAS 428852-67-9](/s/CIDOYXQOABFQRU-UHFFFAOYSA-N.svg)
1-[(4-Methylsulfanylphenyl)methyl]-4-(2-nitrophenyl)sulfonylpiperazine
CAS 428852-67-9C18H21N3O4S2
![N-[4-(1-Azepanylsulfonyl)phenyl]-N'-(2-furoyl)thiourea chemical structure, C18H21N3O4S2, CAS 642957-52-6](/s/AOSFFZFQZMFGBY-UHFFFAOYSA-N.svg)
N-[4-(1-Azepanylsulfonyl)phenyl]-N'-(2-furoyl)thiourea
CAS 642957-52-6C18H21N3O4S2
![N-(2,4-Dimethoxyphenyl)-2-((3,6-dimethyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide chemical structure, C18H21N3O4S2, CAS 688353-38-0](/s/PVOZQYPHZGNKDL-UHFFFAOYSA-N.svg)
N-(2,4-Dimethoxyphenyl)-2-((3,6-dimethyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide
CAS 688353-38-0C18H21N3O4S2
![N-(2,5-Dimethoxyphenyl)-2-((3,6-dimethyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide chemical structure, C18H21N3O4S2, CAS 689262-52-0](/s/OEWDGMHONRZJCV-UHFFFAOYSA-N.svg)
N-(2,5-Dimethoxyphenyl)-2-((3,6-dimethyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide
CAS 689262-52-0C18H21N3O4S2
1-(Methylsulfonyl)-N-(2-(thiophene-3-carboxamido)phenyl)piperidine-4-carboxamide
CAS 1207006-65-2C18H21N3O4S2
- N-{2-[1-Methanesulfonyl-5-(4-methylphenyl)-4,5-dihydro-1H-pyrazol-3-yl]phenyl}methanesulfonamide923250-41-3C18H21N3O4S2
- 4-Methoxy-N-[[4-(propan-2-ylsulfamoyl)phenyl]carbamothioyl]benzamide714208-60-3C18H21N3O4S2
- N-{3-[1-Methanesulfonyl-5-(2-methylphenyl)-4,5-dihydro-1H-pyrazol-3-yl]phenyl}methanesulfonamide833430-25-4C18H21N3O4S2
- (Z)-3-(5-(2-Methoxybenzylidene)-4-oxo-2-thioxothiazolidin-3-yl)-N-morpholinopropanamide681480-44-4C18H21N3O4S2
- N-(5-Acetyl-4-phenylthiazol-2-yl)-1-(methylsulfonyl)piperidine-2-carboxamide1214833-42-7C18H21N3O4S2
- N-(5-Acetyl-4-phenylthiazol-2-yl)-1-(methylsulfonyl)piperidine-3-carboxamide1060165-07-2C18H21N3O4S2
- N-(3-Carbamoyl-5-phenylthiophen-2-yl)-1-(methylsulfonyl)piperidine-3-carboxamide1058189-44-8C18H21N3O4S2
- Ethyl 5-acetyl-2-(2-((4,6-dimethylpyrimidin-2-yl)thio)acetamido)-4-methylthiophene-3-carboxylate332162-21-7C18H21N3O4S2
- Ethyl 4-(3-(4-sulfamoylphenethyl)thioureido)benzoate351060-63-4C18H21N3O4S2
- 2-({[4-(Acetylamino)phenyl]sulfonyl}amino)-6-methyl-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxamide581780-50-9C18H21N3O4S2
- 2-[4-(Dimethylsulfamoyl)benzamido]-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxamide300573-70-0C18H21N3O4S2
- 2-({[4-(Acetylamino)phenyl]sulfonyl}amino)-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-3-carboxamide303138-68-3C18H21N3O4S2
- N-(2-(1-(Methylsulfonyl)-5-(o-tolyl)-4,5-dihydro-1H-pyrazol-3-yl)phenyl)methanesulfonamide921142-57-6C18H21N3O4S2
- N-(4-Methyl-2-(morpholinosulfonyl)phenyl)-2-(methylthio)nicotinamide380570-15-0C18H21N3O4S2
- 2-[[4-(Dimethylsulfamoyl)benzoyl]amino]-N-methyl-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxamide893094-37-6C18H21N3O4S2
- 2-[(4-Butyl-1,1-dioxido-4H-1,2,4-benzothiadiazin-3-yl)thio]-N-(2-furylmethyl)acetamide899970-90-2C18H21N3O4S2
- Ethyl 4-({[4-(ethylsulfamoyl)phenyl]carbamothioyl}amino)benzoate706768-82-3C18H21N3O4S2
- 3-Butoxy-N-[(4-sulfamoylphenyl)carbamothioyl]benzamide832687-91-9C18H21N3O4S2
- 4-(Morpholinosulfonyl)-N-(4,5,6,7-tetrahydrobenzo[d]thiazol-2-yl)benzamide320367-82-6C18H21N3O4S2
- N-(5,5-Dimethyl-7-oxo-4,5,6,7-tetrahydrobenzo[d]thiazol-2-yl)-4-(N,N-dimethylsulfamoyl)benzamide6216-79-1C18H21N3O4S2
- 2-(4-(Azepan-1-ylsulfonyl)benzamido)thiophene-3-carboxamide784165-42-0C18H21N3O4S2
- N-{4-[1-Methanesulfonyl-5-(2-methylphenyl)-4,5-dihydro-1H-pyrazol-3-yl]phenyl}methanesulfonamide851781-18-5C18H21N3O4S2
- N-(4-(1-(Methylsulfonyl)-5-phenyl-4,5-dihydro-1H-pyrazol-3-yl)phenyl)ethanesulfonamide851782-01-9C18H21N3O4S2
- (Z)-2-(5-(4-Ethoxybenzylidene)-4-oxo-2-thioxothiazolidin-3-yl)-N-morpholinoacetamide463319-52-0C18H21N3O4S2
- 1-(4-((4-Methoxyphenyl)sulfonyl)piperidin-1-yl)-2-(pyrimidin-2-ylthio)ethanone1798033-74-5C18H21N3O4S2
- N-[(5Z)-5-[(4-Nitrophenyl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]octanamide300819-09-4C18H21N3O4S2
- N-(3-Carbamoylthiophen-2-yl)-1-tosylpiperidine-4-carboxamide923443-95-2C18H21N3O4S2
- 2-(4-((3-Methylpiperidin-1-yl)sulfonyl)benzamido)thiophene-3-carboxamide888413-15-8C18H21N3O4S2
- 1-(Methylsulfonyl)-N-(2-(thiophene-2-carboxamido)phenyl)piperidine-4-carboxamide1207029-07-9C18H21N3O4S2
- N-(1,1-Dioxidotetrahydrothiophen-3-yl)-N-methyl-2-{3-[4-(methylsulfanyl)phenyl]-6-oxopyridazin-1(6H)-yl}acetamide1232783-31-1C18H21N3O4S2
- Methyl [4-({[2-(4-sulfamoylphenyl)ethyl]carbamothioyl}amino)phenyl]acetate516457-50-4C18H21N3O4S2
- N-(4-(1-(Methylsulfonyl)-5-(p-tolyl)-4,5-dihydro-1H-pyrazol-3-yl)phenyl)methanesulfonamide851780-75-1C18H21N3O4S2
- 4,5-Dimethyl-2-(4-(pyrrolidin-1-ylsulfonyl)benzamido)thiophene-3-carboxamide896307-26-9C18H21N3O4S2
- Benzenesulfonamide,4-[[[6-hydroxy-7-(1-hydroxyethyl)-4,5-dimethyl-2-benzothiazolyl]amino]methyl]-120164-58-1C18H21N3O4S2
- N-(5,6-Dihydro-4H-cyclopenta[d]thiazol-2-yl)-1-((4-methoxyphenyl)sulfonyl)pyrrolidine-2-carboxamide1049952-08-0C18H21N3O4S2
- N1-((1-(phenylsulfonyl)pyrrolidin-2-yl)methyl)-N2-(thiophen-2-ylmethyl)oxalamide896266-91-4C18H21N3O4S2
- (E)-N-(6-Methoxy-3-(prop-2-yn-1-yl)benzo[d]thiazol-2(3H)-ylidene)-1-(methylsulfonyl)piperidine-4-carboxamide1058211-42-9C18H21N3O4S2
- Butyl 2-(((4,6-dioxo-2-thioxotetrahydropyrimidin-5(2H)-ylidene)methyl)amino)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate1021263-05-7C18H21N3O4S2
- 2-(2-Phenylethenesulfonamido)-N-({[2-(thiophen-2-yl)ethyl]carbamoyl}methyl)acetamide949238-29-3C18H21N3O4S2
- 2-{2,4-Dioxo-3-[2-(thiophen-2-yl)ethyl]-3,4-dihydrothieno[3,2-d]pyrimidin-1(2H)-yl}-N-(3-methoxypropyl)acetamide1260941-57-8C18H21N3O4S2
- N-(4-Sulfamoylphenethyl)-2-((tetrahydrothiophen-3-yl)oxy)nicotinamide2034430-72-1C18H21N3O4S2
- N-{6-Azaspiro[2.5]octan-1-yl}-2-nitro-N-[(thiophen-3-yl)methyl]benzene-1-sulfonamide2138040-95-4C18H21N3O4S2
- N-{6-Azaspiro[2.5]octan-1-yl}-4-nitro-N-[(thiophen-3-yl)methyl]benzene-1-sulfonamide2138082-37-6C18H21N3O4S2
- 2-[(5-{[(Benzyloxy)carbonyl](cyclohexyl)amino}-1,3,4-thiadiazol-2-yl)sulfanyl]acetic acid2680827-80-7C18H21N3O4S2
Frequently asked questions
What is the molar mass of C18H21N3O4S2?
The molar mass of C18H21N3O4S2 is 407.50 g/mol, calculated from standard atomic weights for 18 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms, 4 oxygen atoms and 2 sulfur atoms. The monoisotopic mass is 407.0973 Da.
How many compounds have the formula C18H21N3O4S2?
CompoundList lists 68 compounds with the molecular formula C18H21N3O4S2, including Razupenem, 2-(4-((4-Methylpiperidin-1-yl)sulfonyl)benzamido)thiophene-3-carboxamide, N-[4-(2-Ethylsulfonyl-3-phenyl-3,4-dihydropyrazol-5-yl)phenyl]methanesulfonamide. 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 C18H21N3O4S2?
C18H21N3O4S2 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.