C18H21NO4S2
48 compounds have this formula on CompoundList.
- Molar mass
- 379.49g/mol
- Monoisotopic mass
- 379.0912Da
- Atoms
- 46
- Elements
- 5
- Rings plus double bonds
- 9
The formula C18H21NO4S2 describes a molecule made of 18 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom, 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 × 1856.97%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 215.58%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 13.69%14.007 × 1 = 14.007 g/mol
- O Oxygen × 416.86%15.999 × 4 = 63.996 g/mol
- S Sulfur × 216.90%32.06 × 2 = 64.120 g/mol
Compounds with the formula C18H21NO4S2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 48 of 48 compounds
![N-(1,1-Dioxidotetrahydrothiophen-3-yl)-4-methoxy-N-[(3-methylthiophen-2-yl)methyl]benzamide chemical structure, C18H21NO4S2, CAS 838899-23-3](/s/BRCOEANZRYNGKR-UHFFFAOYSA-N.svg)
![Ethyl 2-[(benzylsulfonyl)amino]-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate chemical structure, C18H21NO4S2, CAS 521298-74-8](/s/ZCZPRGVPKCAUNM-UHFFFAOYSA-N.svg)
![N-(1,1-Dioxidotetrahydrothiophen-3-yl)-2-methoxy-N-[(3-methylthiophen-2-yl)methyl]benzamide chemical structure, C18H21NO4S2, CAS 880392-03-0](/s/XQXMKLKRHCAJOK-UHFFFAOYSA-N.svg)
![Ethyl 2-{[(4-methylphenyl)sulfonyl]amino}-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate chemical structure, C18H21NO4S2, CAS 63183-11-9](/s/RMFPMCARNSZRLJ-UHFFFAOYSA-N.svg)
![N-[2-[(3-Methylphenyl)methylsulfanyl]ethyl]-2,3-dihydro-1,4-benzodioxine-6-sulfonamide chemical structure, C18H21NO4S2, CAS 432532-95-1](/s/JSYCEXVTPJVIQX-UHFFFAOYSA-N.svg)
![N-(1,1-Dioxidotetrahydrothiophen-3-yl)-3-methoxy-N-[(3-methylthiophen-2-yl)methyl]benzamide chemical structure, C18H21NO4S2, CAS 879929-26-7](/s/DLQGYIUJSGEGRH-UHFFFAOYSA-N.svg)
![N-{[1-(Thiophen-2-yl)cyclopentyl]methyl}-2,3-dihydro-1,4-benzodioxine-6-sulfonamide chemical structure, C18H21NO4S2, CAS 1058184-80-7](/s/QFOVPTHWJFXYEX-UHFFFAOYSA-N.svg)
![(2R)-3-Methyl-2-[[4-(4-methylsulfanylphenyl)phenyl]sulfonylamino]butanoic acid chemical structure, C18H21NO4S2, CAS 193808-61-6](/s/JDHBSANRAFEDMI-QGZVFWFLSA-N.svg)
- (5Z)-3-Cyclopentyl-2-thioxo-5-(3,4,5-trimethoxybenzylidene)-1,3-thiazolidin-4-one848924-73-2C18H21NO4S2
- 6-[(5Z)-5-[(4-Ethoxyphenyl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]hexanoic acid378776-72-8C18H21NO4S2
- Butyl 3-[(5Z)-5-[(4-methoxyphenyl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]propanoate265098-85-9C18H21NO4S2
- N-(1,1-Dioxidotetrahydrothiophen-3-yl)-2-(4-methoxyphenyl)-N-(thiophen-2-ylmethyl)acetamide883710-56-3C18H21NO4S2
- N-(2-Cyclopropyl-2-hydroxy-2-(thiophen-2-yl)ethyl)-3-(phenylsulfonyl)propanamide1396887-40-3C18H21NO4S2
- 1-(7-(Furan-2-yl)-1,4-thiazepan-4-yl)-3-(phenylsulfonyl)propan-1-one1795451-19-2C18H21NO4S2
- Methyl 6-[(5E)-5-[(4-methoxyphenyl)methylidene]-2-oxo-4-sulfanylidene-1,3-thiazolidin-3-yl]hexanoate303055-62-1C18H21NO4S2
- (5-(((2-Methylbenzyl)sulfonyl)methyl)furan-2-yl)(thiomorpholino)methanone1448073-93-5C18H21NO4S2
- 1-((2,4-Dimethylphenyl)sulfonyl)-3-(phenylsulfonyl)pyrrolidine1448046-56-7C18H21NO4S2
- 1-(Phenethylsulfonyl)-3-(phenylsulfonyl)pyrrolidine1448043-80-8C18H21NO4S2
- 2-((Phenylsulfonyl)methyl)-1-(m-tolylsulfonyl)pyrrolidine1448131-70-1C18H21NO4S2
- (3-((Furan-2-ylmethyl)sulfonyl)azetidin-1-yl)(1-(thiophen-2-yl)cyclopentyl)methanone1797698-00-0C18H21NO4S2
- 1-(4-((4-Methoxyphenyl)sulfonyl)piperidin-1-yl)-2-(thiophen-2-yl)ethanone1705273-63-7C18H21NO4S2
- (1R,5S)-3-(Methylsulfonyl)-8-(naphthalen-1-ylsulfonyl)-8-azabicyclo[3.2.1]octane1706404-21-8C18H21NO4S2
- 1-(3-((4-Methoxyphenyl)sulfonyl)azetidin-1-yl)-3-(3-methylthiophen-2-yl)propan-1-one1704522-35-9C18H21NO4S2
- 4-(Benzylsulfonyl)-1-(phenylsulfonyl)piperidine2034521-15-6C18H21NO4S2
- 2-(Benzyloxy)-1-(1,1-dioxido-7-(thiophen-2-yl)-1,4-thiazepan-4-yl)ethanone2034460-65-4C18H21NO4S2
- 1-(1,1-Dioxido-7-(thiophen-2-yl)-1,4-thiazepan-4-yl)-2-hydroxy-3-phenylpropan-1-one2034382-14-2C18H21NO4S2
- N-((Tetrahydro-2H-pyran-4-yl)(thiophen-2-yl)methyl)-2,3-dihydrobenzofuran-5-sulfonamide2319720-41-5C18H21NO4S2
- 3-{(5E)-5-[4-Methoxy-2-methyl-5-(propan-2-yl)benzylidene]-4-oxo-2-thioxo-1,3-thiazolidin-3-yl}propanoic acid692281-72-4C18H21NO4S2
- (E)-N-Methyl-N-[1-(4-methylsulfonylphenyl)ethyl]-2-phenylethenesulfonamide1030742-64-3C18H21NO4S2
- Piperidine, 4-phenyl-1-[[(phenylsulfonyl)methyl]sulfonyl]-55116-78-4C18H21NO4S2
- N-{[3-(Methanesulfonylmethyl)phenyl]methyl}-2-(4-methylphenyl)ethene-1-sulfonamide1252569-37-1C18H21NO4S2
- I(2)-Alanine, N-[o-(methylthio)phenyl]-N-(p-tolylsulfonyl)-, methyl ester13372-64-0C18H21NO4S2
Frequently asked questions
What is the molar mass of C18H21NO4S2?
The molar mass of C18H21NO4S2 is 379.49 g/mol, calculated from standard atomic weights for 18 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom, 4 oxygen atoms and 2 sulfur atoms. The monoisotopic mass is 379.0912 Da.
How many compounds have the formula C18H21NO4S2?
CompoundList lists 48 compounds with the molecular formula C18H21NO4S2, including N-(1,1-Dioxidotetrahydrothiophen-3-yl)-4-methoxy-N-[(3-methylthiophen-2-yl)methyl]benzamide, N-(1,1-Dioxothiolan-3-yl)-2-(3-methylphenoxy)-N-(thiophen-2-ylmethyl)acetamide, Ethyl 2-[(benzylsulfonyl)amino]-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate. 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 C18H21NO4S2?
C18H21NO4S2 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.