Molecular formula
C18H21NO4S
219 compounds have this formula on CompoundList.
- Molar mass
- 347.43g/mol
- Monoisotopic mass
- 347.1191Da
- Atoms
- 45
- Elements
- 5
- Rings plus double bonds
- 9
The formula C18H21NO4S describes a molecule made of 18 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom, 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 × 1862.23%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 216.09%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 14.03%14.007 × 1 = 14.007 g/mol
- O Oxygen × 418.42%15.999 × 4 = 63.996 g/mol
- S Sulfur × 19.23%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C18H21NO4S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 200 of 219 compounds
N-(2-(2,3-Dihydrobenzofuran-5-yl)-2-hydroxyethyl)-2-phenylethanesulfonamide
CAS 1421477-34-0C18H21NO4S
6,7-Isoquinolinediol, 1,2,3,4-tetrahydro-1-(p-(isopropylsulfonyl)phenyl)-
CAS 21140-78-3C18H21NO4S
Benzamide, 2-(2-(benzylthio)ethoxy)-5-(methoxymethoxy)-
CAS 28169-56-4C18H21NO4S
8-Methoxy-2-(4-methylphenyl)sulfonyl-1,3,4,5-tetrahydro-2-benzazepin-5-ol
CAS 41790-03-8C18H21NO4S
![Methyl 4-[(4-tert-butylphenyl)sulfonylamino]benzoate chemical structure, C18H21NO4S, CAS 333444-26-1](/s/DTBUQBVODCPZNB-UHFFFAOYSA-N.svg)
Methyl 4-[(4-tert-butylphenyl)sulfonylamino]benzoate
CAS 333444-26-1C18H21NO4S
![Propan-2-yl 2-[(3-methoxybenzoyl)amino]-4,5-dimethylthiophene-3-carboxylate chemical structure, C18H21NO4S, CAS 551908-09-9](/s/BAFSFWKSCRTVJP-UHFFFAOYSA-N.svg)
Propan-2-yl 2-[(3-methoxybenzoyl)amino]-4,5-dimethylthiophene-3-carboxylate
CAS 551908-09-9C18H21NO4S
Ethyl 2-(butoxycarbonylamino)-5-phenylthiophene-3-carboxylate
CAS 431072-01-4C18H21NO4S
Mcu2GU9lus
CAS 906772-02-9C18H21NO4S
![Propyl 2-[(furan-2-ylcarbonyl)amino]-6-methyl-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate chemical structure, C18H21NO4S, CAS 362499-34-1](/s/HHNASYHRVVAVNK-UHFFFAOYSA-N.svg)
Propyl 2-[(furan-2-ylcarbonyl)amino]-6-methyl-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate
CAS 362499-34-1C18H21NO4S
3-Benzylsulfonyl-N-(2-methoxy-5-methylphenyl)propanamide
CAS 827620-17-7C18H21NO4S
Benzeneethanamine, N,alpha-dimethyl-2-(phenylthio)-, ethanedioate (1:1)
CAS 127876-84-0C18H21NO4S
![Benzyl N-[1-(phenylsulfonyl)butyl]carbamate chemical structure, C18H21NO4S, CAS 860788-40-5](/s/PRCBZIXDLWNEDM-UHFFFAOYSA-N.svg)
Benzyl N-[1-(phenylsulfonyl)butyl]carbamate
CAS 860788-40-5C18H21NO4S
![1-[(2,5-Dimethoxy-4-methylphenyl)sulfonyl]-2-methylindoline chemical structure, C18H21NO4S, CAS 873579-33-0](/s/QALVDDSMSZZNCR-UHFFFAOYSA-N.svg)
1-[(2,5-Dimethoxy-4-methylphenyl)sulfonyl]-2-methylindoline
CAS 873579-33-0C18H21NO4S
![4-Methyl-3-({[4-(methylpropyl)phenyl]sulfonyl}amino)benzoic acid chemical structure, C18H21NO4S, CAS 669733-59-9](/s/QBDFSLJIFSOPSE-UHFFFAOYSA-N.svg)
4-Methyl-3-({[4-(methylpropyl)phenyl]sulfonyl}amino)benzoic acid
CAS 669733-59-9C18H21NO4S
![3,4,5-Trimethoxy-N-{[1-(thiophen-2-yl)cyclopropyl]methyl}benzamide chemical structure, C18H21NO4S, CAS 1207041-05-1](/s/GUNADNGMUSGSLJ-UHFFFAOYSA-N.svg)
3,4,5-Trimethoxy-N-{[1-(thiophen-2-yl)cyclopropyl]methyl}benzamide
CAS 1207041-05-1C18H21NO4S
(E)-N-(2-(Thiophen-3-yl)ethyl)-3-(3,4,5-trimethoxyphenyl)acrylamide
CAS 1251711-62-2C18H21NO4S
![2-Methoxy-4-[4-(piperidin-1-ylsulfonyl)phenyl]phenol chemical structure, C18H21NO4S, CAS 1262002-36-7](/s/IHUGPQITVHHSBV-UHFFFAOYSA-N.svg)
2-Methoxy-4-[4-(piperidin-1-ylsulfonyl)phenyl]phenol
CAS 1262002-36-7C18H21NO4S
![2-Methoxy-5-[4-(piperidin-1-ylsulfonyl)phenyl]phenol chemical structure, C18H21NO4S, CAS 1261990-00-4](/s/DHRZMNSUTLYFMQ-UHFFFAOYSA-N.svg)
2-Methoxy-5-[4-(piperidin-1-ylsulfonyl)phenyl]phenol
CAS 1261990-00-4C18H21NO4S
N-(2-Hydroxy-2-(4-(methylthio)phenyl)ethyl)-2,6-dimethoxybenzamide
CAS 1448043-26-2C18H21NO4S
(E)-N-(2-Methoxy-2-(2-methoxyphenyl)ethyl)-2-phenylethenesulfonamide
CAS 1799259-00-9C18H21NO4S
2-Methoxy-N-((2-methoxy-2,3-dihydro-1H-inden-2-yl)methyl)benzenesulfonamide
CAS 2034261-54-4C18H21NO4S
Ethyl 2-(butanoylamino)-4-(4-methoxyphenyl)thiophene-3-carboxylate
CAS 373614-63-2C18H21NO4S
![N-Benzyl-N-[(2,4,6-trimethylphenyl)sulfonyl]glycine chemical structure, C18H21NO4S, CAS 276695-53-5](/s/BRUKIOXBWALXCN-UHFFFAOYSA-N.svg)
N-Benzyl-N-[(2,4,6-trimethylphenyl)sulfonyl]glycine
CAS 276695-53-5C18H21NO4S
![Ethyl 4-[(4-methylbenzyl)(methylsulfonyl)amino]benzoate chemical structure, C18H21NO4S, CAS 528573-97-9](/s/MRERNKSFOFIBAR-UHFFFAOYSA-N.svg)
Ethyl 4-[(4-methylbenzyl)(methylsulfonyl)amino]benzoate
CAS 528573-97-9C18H21NO4S
- (E)-N-[(3,4-Dimethoxyphenyl)methyl]-N-methyl-2-phenylethenesulfonamide852218-73-6C18H21NO4S
- 3-Phenyl-3-[(4-propan-2-ylphenyl)sulfonylamino]propanoic acid670258-94-3C18H21NO4S
- 3-Phenylsulfanyl-N-(3,4,5-trimethoxyphenyl)propanamide326479-10-1C18H21NO4S
- Ethyl 2-[benzyl-(4-methylphenyl)sulfonylamino]acetate197958-49-9C18H21NO4S
- Ethyl 5-[2-(4-ethoxyphenyl)acetamido]-3-methylthiophene-2-carboxylate923441-73-0C18H21NO4S
- N-Benzyl-4-((4-methoxyphenyl)sulfonyl)butanamide922876-32-2C18H21NO4S
- 4-(Benzylsulfonyl)-N-(4-methoxyphenyl)butanamide923498-87-7C18H21NO4S
- (1-(4-Methoxy-2,6-dimethylphenylsulfonyl)indolin-6-yl)methanol1239953-20-8C18H21NO4S
- tert-Butyl [5-methoxy-2-(2-oxo-2-thiophen-3-ylethyl)phenyl]carbamate1262879-55-9C18H21NO4S
- N-[2-Cyclopropyl-2-hydroxy-2-(thiophen-2-yl)ethyl]-2,3-dimethoxybenzamide1396847-24-7C18H21NO4S
- 1-[2-(4-Methoxyphenoxy)ethanesulfonyl]-1,2,3,4-tetrahydroquinoline1396846-29-9C18H21NO4S
- N-((4-Hydroxychroman-4-yl)methyl)-2-phenylethanesulfonamide1396684-10-8C18H21NO4S
- N-((4-Hydroxychroman-4-yl)methyl)-2,5-dimethylbenzenesulfonamide1396805-27-8C18H21NO4S
- (5-(((4-Methylbenzyl)sulfonyl)methyl)furan-2-yl)(pyrrolidin-1-yl)methanone1448043-21-7C18H21NO4S
- N-(4-(Benzo[d][1,3]dioxol-5-yloxy)but-2-yn-1-yl)-2-(cyclopentylthio)acetamide1448133-22-9C18H21NO4S
- N-(2-(2,3-Dihydrobenzofuran-5-yl)-2-hydroxyethyl)-2,5-dimethylbenzenesulfonamide1421484-98-1C18H21NO4S
- N-((2-Hydroxy-1,2,3,4-tetrahydronaphthalen-2-yl)methyl)-2-methoxybenzenesulfonamide1421514-16-0C18H21NO4S
- (3-((Furan-2-ylmethyl)sulfonyl)azetidin-1-yl)(mesityl)methanone1797020-37-1C18H21NO4S
- 6-Methyl-4-({1-[3-(3-methylthiophen-2-yl)propanoyl]pyrrolidin-3-yl}oxy)-2H-pyran-2-one1705096-58-7C18H21NO4S
- 2-(2-Methoxyphenoxy)-N-(4-(thiophen-2-yl)tetrahydro-2H-pyran-4-yl)acetamide2034244-78-3C18H21NO4S
- 4-((4-Methoxy-3-methylphenyl)sulfonyl)-2-phenylmorpholine946292-10-0C18H21NO4S
- 4-((2-Methoxy-5-methylphenyl)sulfonyl)-2-phenylmorpholine946292-14-4C18H21NO4S
- 2-(4-Propoxyphenoxy)ethyl 2-(methylsulfanyl)pyridine-3-carboxylate893900-21-5C18H21NO4S
- 3-(3-Methoxyphenoxy)-1-(3-methoxypropyl)-4-(thiophen-2-yl)azetidin-2-one1241536-74-2C18H21NO4S
- 2-(3-t-Butylsulfamoylphenyl)-6-methylbenzoic acid1261969-74-7C18H21NO4S
- 4-(3-t-Butylsulfamoylphenyl)-3-methylbenzoic acid1261990-41-3C18H21NO4S
- 3-(3-t-Butylsulfamoylphenyl)-2-methylbenzoic acid1261997-30-1C18H21NO4S
- 2-(3-t-Butylsulfamoylphenyl)-5-methylbenzoic acid1261916-74-8C18H21NO4S
- 2-(4-T-Butylsulfamoylphenyl)-6-methylbenzoic acid1261972-15-9C18H21NO4S
- 4-(4-t-Butylsulfamoylphenyl)-3-methylbenzoic acid1261969-87-2C18H21NO4S
- 3-(4-T-Butylsulfamoylphenyl)-2-methylbenzoic acid1261941-39-2C18H21NO4S
- 2-(4-t-Butylsulfamoylphenyl)-5-methylbenzoic acid1261961-15-2C18H21NO4S
- N-(4,8-Dioxotricyclo[3.3.1.1~3,7~]decan-2-yl)-N,4-dimethylbenzene-1-sulfonamide56781-98-7C18H21NO4S
- N-((1-Hydroxy-2,3-dihydro-1H-inden-1-yl)methyl)-4-methoxy-3-methylbenzenesulfonamide1448054-49-6C18H21NO4S
- N-(3-Hydroxy-3-phenylpropyl)-3-(phenylsulfonyl)propanamide1396847-88-3C18H21NO4S
- N-(2-Cyclopropyl-2-hydroxy-2-phenylethyl)-3-methoxybenzenesulfonamide1421517-43-2C18H21NO4S
- N-((4-Hydroxychroman-4-yl)methyl)-1-(m-tolyl)methanesulfonamide1396794-00-5C18H21NO4S
- (4-((Furan-2-ylmethyl)sulfonyl)piperidin-1-yl)(o-tolyl)methanone1448051-10-2C18H21NO4S
- (3-((Furan-2-ylmethyl)sulfonyl)azetidin-1-yl)(4-propylphenyl)methanone1797343-81-7C18H21NO4S
- 3-Acetyl-N-(2-methoxy-2-(o-tolyl)ethyl)benzenesulfonamide1797878-43-3C18H21NO4S
- 1-(7-(Furan-2-yl)-1,4-thiazepan-4-yl)-2-(2-methoxyphenoxy)ethanone1795450-68-8C18H21NO4S
- 2-tert-Butoxycarbonylamino-5-phenyl-thiophene-3-carboxylic acid ethyl ester1431470-42-6C18H21NO4S
- Benzofuran-2-yl(3-(cyclohexylsulfonyl)azetidin-1-yl)methanone1706164-91-1C18H21NO4S
- 2-Ethoxy-N-(isochroman-3-ylmethyl)benzenesulfonamide2034447-75-9C18H21NO4S
- N-(Isochroman-3-ylmethyl)-2-methoxy-N-methylbenzenesulfonamide2034320-70-0C18H21NO4S
- 2,3-Dimethoxy-N-(4-(thiophen-2-yl)tetrahydro-2H-pyran-4-yl)benzamide2034325-37-4C18H21NO4S
- Methyl 4-((5-hydroxy-3-(thiophen-2-yl)pentyl)carbamoyl)benzoate2034507-56-5C18H21NO4S
- Methyl 4-((5-hydroxy-3-(thiophen-3-yl)pentyl)carbamoyl)benzoate2034540-73-1C18H21NO4S
- (3,5-Dimethoxyphenyl)(4-(thiophen-3-yloxy)piperidin-1-yl)methanone2034302-24-2C18H21NO4S
- 2-(2-Methoxyphenoxy)-1-(4-(thiophen-3-yloxy)piperidin-1-yl)ethanone2034428-68-5C18H21NO4S
- 3-Cyclopropylidene-8-(2,3-dihydro-1,4-benzodioxine-6-sulfonyl)-8-azabicyclo[3.2.1]octane2194847-78-2C18H21NO4S
- Ethyl 2-(N-(4-methylphenyl)sulfonylanilino)propanoate14370-81-1C18H21NO4S
- 6-[Hydroxy(4-methoxyphenyl)methyl]-2-phenyl-1lambda~6~,2-thiazinane-1,1-dione54531-89-4C18H21NO4S
- 1-Benzothiepin-5-amine, 2,3,4,5-tetrahydro-N-methyl-N-2-propynyl-, maleate (1:1)21699-89-8C18H21NO4S
- Ethyl 2-(4-butoxybenzamido)thiophene-3-carboxylate896680-40-3C18H21NO4S
- N-(3,4-Diethoxyphenyl)-2-phenylethene-1-sulfonamide941043-45-4C18H21NO4S
- Phenylmethyl (2S)-2-methyl-3-[(methylphenylamino)sulfonyl]propanoate181124-50-5C18H21NO4S
- 2-{[(2,4-Dimethylphenyl)sulfonyl](propyl)amino}benzoic acid912896-00-5C18H21NO4S
- 2-(2,3-Dimethoxyphenyl)-1-(4-methylbenzene-1-sulfonyl)azetidine824390-94-5C18H21NO4S
- N-(2-(2,3-Dihydrobenzofuran-5-yl)-2-hydroxyethyl)-1-(m-tolyl)methanesulfonamide1421497-71-3C18H21NO4S
- (I+/-S)-N-(1-Methylethyl)-I+/--[[(4-methylphenyl)sulfonyl]oxy]benzeneacetamide1354039-87-4C18H21NO4S
- [1-Ethyl-4-(4-ethylbenzoyl)-5-(methylsulfanyl)-2-oxo-2,5-dihydro-1H-pyrrol-3-yl]acetic acid1269531-57-8C18H21NO4S
- 3-(5-Ethyl-2-thiazolyl)-5-[(tetrahydro-2H-pyran-4-yl)methoxy]benzoic acid1948233-94-0C18H21NO4S
- N-Benzyl-N-(3-(hydroxymethyl)oxetan-3-yl)-4-methylbenzenesulfonamide2095219-05-7C18H21NO4S
- 1-({2-Hydroxy-2-[4-(thiophen-3-yl)phenyl]ethyl}carbamoyl)-1-methylethyl acetate2097900-96-2C18H21NO4S
- Benzenesulfonamide, N-(1-(4-methoxyphenyl)ethyl)-N-(2-oxiranylmethyl)-87690-14-0C18H21NO4S
- Benzenesulfonamide, N-(1-(3-methoxyphenyl)ethyl)-N-(2-oxiranylmethyl)-87690-20-8C18H21NO4S
- N-[2-(3,4-Dimethoxyphenyl)ethyl]-2-phenylethene-1-sulfonamide930917-74-1C18H21NO4S
- Benzeneacetamide, N-(1-methyl-2-phenylethyl)-N-[(methylsulfonyl)oxy]-143217-15-6C18H21NO4S
- N-[1-(2,5-Dimethylphenyl)ethyl]-2,3-dihydro-1,4-benzodioxine-6-sulfonamide932219-21-1C18H21NO4S
- 4-(N-tert-Butylglycyl)phenyl benzenesulfonate920804-57-5C18H21NO4S
- Boc-4-(thiophen-2-yl)-DL-phenylalanine1260010-26-1C18H21NO4S
- 3-(5-Ethyl-2-thiazolyl)-5-[(tetrahydro-2H-pyran-4-yl)oxy]benzoic acid methyl ester1948234-00-1C18H21NO4S
- 3-(5-Methyl-2-thiazolyl)-5-[(tetrahydro-3-methyl-3-furanyl)methoxy]benzoic acid methyl ester1948235-60-6C18H21NO4S
- 3-(5-Methyl-2-thiazolyl)-5-[(tetrahydro-2H-pyran-4-yl)methoxy]benzoic acid methyl ester1948233-68-8C18H21NO4S
- 4-Amino-3-(2-cyclohexylphenoxy)benzenesulfonic acid1089340-66-8C18H21NO4S
Frequently asked questions
What is the molar mass of C18H21NO4S?
The molar mass of C18H21NO4S is 347.43 g/mol, calculated from standard atomic weights for 18 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom, 4 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 347.1191 Da.
How many compounds have the formula C18H21NO4S?
CompoundList lists 219 compounds with the molecular formula C18H21NO4S, including N-(2-(2,3-Dihydrobenzofuran-5-yl)-2-hydroxyethyl)-2-phenylethanesulfonamide, 6,7-Isoquinolinediol, 1,2,3,4-tetrahydro-1-(p-(isopropylsulfonyl)phenyl)-, Benzamide, 2-(2-(benzylthio)ethoxy)-5-(methoxymethoxy)-. 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 C18H21NO4S?
C18H21NO4S has a degree of unsaturation of 9. 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.