C21H18N2O4S2
45 compounds have this formula on CompoundList.
- Molar mass
- 426.50g/mol
- Monoisotopic mass
- 426.0708Da
- Atoms
- 47
- Elements
- 5
- Rings plus double bonds
- 14
The formula C21H18N2O4S2 describes a molecule made of 21 carbon atoms, 18 hydrogen atoms, 2 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 × 2159.14%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 184.25%1.008 × 18 = 18.144 g/mol
- N Nitrogen × 26.57%14.007 × 2 = 28.014 g/mol
- O Oxygen × 415.00%15.999 × 4 = 63.996 g/mol
- S Sulfur × 215.03%32.06 × 2 = 64.120 g/mol
Compounds with the formula C21H18N2O4S2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 45 of 45 compounds
![(5Z)-3-[2-(3,4-Dimethoxyphenyl)ethyl]-5-(2-oxo-1H-indol-3-ylidene)-2-sulfanylidene-1,3-thiazolidin-4-one chemical structure, C21H18N2O4S2, CAS 324564-78-5](/s/RXNSMZRBGQMYOK-UHFFFAOYSA-N.svg)
![(4E)-1-(4,5-Dimethyl-1,3-thiazol-2-yl)-4-[hydroxy(thiophen-2-yl)methylidene]-5-(2-methoxyphenyl)pyrrolidine-2,3-dione chemical structure, C21H18N2O4S2, CAS 615274-96-9](/s/KNRIHXLPQPTOKK-UHFFFAOYSA-N.svg)
![3-({3-[5-(4-Methylbenzylidene)-4-oxo-2-thioxo-1,3-thiazolidin-3-yl]propanoyl}amino)benzoic acid chemical structure, C21H18N2O4S2, CAS 6615-95-8](/s/WJWBVNIJPMKGJW-BOPFTXTBSA-N.svg)
sulfamoyl}benzamide chemical structure, C21H18N2O4S2, CAS 922990-99-6](/s/LHVYUHDIWZDBPW-UHFFFAOYSA-N.svg)
![2-(2-((2-(Benzo[d][1,3]dioxol-5-yl)-2-oxoethyl)thio)thiazol-4-yl)-N-benzylacetamide chemical structure, C21H18N2O4S2, CAS 1040638-83-2](/s/QCAVZOSLPMRZJP-UHFFFAOYSA-N.svg)
![5-{5-[(4-Methylbenzenesulfonyl)methyl]furan-2-yl}-3-[4-(methylsulfanyl)phenyl]-1,2,4-oxadiazole chemical structure, C21H18N2O4S2, CAS 1040654-79-2](/s/GGRVWMUVUBSRQA-UHFFFAOYSA-N.svg)
![Methyl (2Z)-5-(2-methoxyphenyl)-7-methyl-3-oxo-2-(thiophen-2-ylmethylidene)-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate chemical structure, C21H18N2O4S2, CAS 384377-15-5](/s/QEJZJPBHCCXGPG-WJDWOHSUSA-N.svg)
![4-({4-[(5Z)-5-Benzylidene-4-oxo-2-thioxo-1,3-thiazolidin-3-yl]butanoyl}amino)benzoic acid chemical structure, C21H18N2O4S2, CAS 303792-70-3](/s/PZEAOHTUVQYNJE-LGMDPLHJSA-N.svg)
![(3Z)-3-[3-(2,5-Dimethoxyphenyl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]-1-ethyl-1,3-dihydro-2H-indol-2-one chemical structure, C21H18N2O4S2, CAS 304893-24-1](/s/NKNCYZRGRWVTRK-ZCXUNETKSA-N.svg)
![(Z)-3-(5-(Benzo[d][1,3]dioxol-5-ylmethylene)-4-oxo-2-thioxothiazolidin-3-yl)-N-(m-tolyl)propanamide chemical structure, C21H18N2O4S2, CAS 314274-86-7](/s/YORROKSJHNROQT-WQRHYEAKSA-N.svg)
![2-[2-(Carboxyphenylmethylthio)-6-methylpyrimidin-4-ylthio]-2-phenylacetic acid chemical structure, C21H18N2O4S2, CAS 391229-35-9](/s/IFWPLAOXKJPRSW-UHFFFAOYSA-N.svg)
![3-(Furan-2-ylmethyl)-2-[2-(4-methoxyphenyl)-2-oxoethyl]sulfanyl-6-methylthieno[2,3-d]pyrimidin-4-one chemical structure, C21H18N2O4S2, CAS 878682-47-4](/s/WGDGJAZMCYXMLR-UHFFFAOYSA-N.svg)
![Methyl 5-[({3-ethyl-4-oxo-6-phenyl-3H,4H-thieno[3,2-d]pyrimidin-2-yl}sulfanyl)methyl]furan-2-carboxylate chemical structure, C21H18N2O4S2, CAS 1207030-31-6](/s/PFAFTIXQVXBVFO-UHFFFAOYSA-N.svg)
![3-[(5Z)-5-(1,3-Benzodioxol-5-ylmethylidene)-4-oxo-2-thioxo-1,3-thiazolidin-3-yl]-N-(4-methylphenyl)propanamide chemical structure, C21H18N2O4S2, CAS 307542-12-7](/s/ZPYFVSXRUMBRHG-WQRHYEAKSA-N.svg)
- 4-(Benzenesulfonyl)-N-[(4-methoxyphenyl)methyl]-2-thiophen-2-yl-1,3-oxazol-5-amine627833-31-2C21H18N2O4S2
- 4-(Benzenesulfonyl)-N-(4-ethoxyphenyl)-2-thiophen-2-yl-1,3-oxazol-5-amine627833-42-5C21H18N2O4S2
- 4-[(5Z)-5-[(2H-1,3-Benzodioxol-5-yl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]-N-phenylbutanamide463308-69-2C21H18N2O4S2
- 2-Cyano-4'-(3-(1-methylethylsulfonamido)thiophen-2-yl)-[1,1'-biphenyl]-4-carboxylic acid942597-98-0C21H18N2O4S2
- Ethyl 2-{[(3-phenyl-5,6-dihydro-1,4-oxathiin-2-yl)carbonyl]amino}-1,3-benzothiazole-6-carboxylate1010911-48-4C21H18N2O4S2
- (3Z)-1-Benzyl-3-{[(4-methoxyphenyl)amino]methylidene}-1H-thieno[3,2-c][1,2]thiazin-4(3H)-one 2,2-dioxide894669-07-9C21H18N2O4S2
- Methyl 4-(2-{2-[(2-oxo-2-phenylethyl)sulfanyl]-1,3-thiazol-4-yl}acetamido)benzoate946241-80-1C21H18N2O4S2
- N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-2-(2-((2-oxo-2-phenylethyl)thio)thiazol-4-yl)acetamide946242-00-8C21H18N2O4S2
- N-(Benzo[d][1,3]dioxol-5-ylmethyl)-2-(2-((2-oxo-2-phenylethyl)thio)thiazol-4-yl)acetamide1049268-85-0C21H18N2O4S2
- 2-(2-((2-(Benzo[d][1,3]dioxol-5-yl)-2-oxoethyl)thio)thiazol-4-yl)-N-(m-tolyl)acetamide1049201-28-6C21H18N2O4S2
- (3Z)-1-Benzyl-3-{[(2-methoxyphenyl)amino]methylene}-1H-thieno[3,2-c][1,2]thiazin-4(3H)-one 2,2-dioxide894668-93-0C21H18N2O4S2
- (3Z)-1-Benzyl-3-{[(3-methoxyphenyl)amino]methylene}-1H-thieno[3,2-c][1,2]thiazin-4(3H)-one 2,2-dioxide894669-00-2C21H18N2O4S2
- (E)-2-((4-Methoxyphenyl)sulfonyl)-N-(1-methylnaphtho[1,2-d]thiazol-2(1H)-ylidene)acetamide941988-62-1C21H18N2O4S2
- N-(4-(Benzofuran-2-yl)thiazol-2-yl)-3-tosylpropanamide941918-57-6C21H18N2O4S2
- 3-Phenyl-N-(pyridin-2-yl)-N-(thiophen-2-ylmethyl)-5,6-dihydro-1,4-oxathiine-2-carboxamide 4,4-dioxide1179500-43-6C21H18N2O4S2
- 1-(2-(4-Methoxyphenyl)-2-oxoethyl)-3-(2-(thiophen-2-yl)ethyl)thieno[3,2-d]pyrimidine-2,4(1H,3H)-dione1428363-68-1C21H18N2O4S2
- 1H-Indole-2-carboxylic acid,1-[[4-[(methylsulfonyl)amino]phenyl]methyl]-3-(2-thienyl)-849354-00-3C21H18N2O4S2
- 4,5-Bis(4-methoxyphenyl)-2-(thiophene-2-sulfonyl)-1H-imidazole81527-42-6C21H18N2O4S2
- Diethyl bis[(2-cyanophenyl)sulfanyl]propanedioate34761-13-2C21H18N2O4S2
- N-(3-Acetylphenyl)-4-{[3-oxo-3-(thiophen-2-yl)prop-1-en-1-yl]amino}benzene-1-sulfonamide4205-53-2C21H18N2O4S2
- 2-({[2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-1,3-thiazol-4-yl]methyl}sulfanyl)acetic acid2243506-02-5C21H18N2O4S2
Frequently asked questions
What is the molar mass of C21H18N2O4S2?
The molar mass of C21H18N2O4S2 is 426.50 g/mol, calculated from standard atomic weights for 21 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms, 4 oxygen atoms and 2 sulfur atoms. The monoisotopic mass is 426.0708 Da.
How many compounds have the formula C21H18N2O4S2?
CompoundList lists 45 compounds with the molecular formula C21H18N2O4S2, including (E)-4-(4-(5-Benzylidene-2-oxo-4-thioxothiazolidin-3-yl)butanamido)benzoic acid, (5Z)-3-[2-(3,4-Dimethoxyphenyl)ethyl]-5-(2-oxo-1H-indol-3-ylidene)-2-sulfanylidene-1,3-thiazolidin-4-one, (4E)-1-(4,5-Dimethyl-1,3-thiazol-2-yl)-4-[hydroxy(thiophen-2-yl)methylidene]-5-(2-methoxyphenyl)pyrrolidine-2,3-dione. 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 C21H18N2O4S2?
C21H18N2O4S2 has a degree of unsaturation of 14. 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.