Molecular formula

C₂₁H₁₈N₄O₅S₂

24 compounds have this formula on CompoundList.

Molar mass: 470.52g/mol
Monoisotopic mass: 470.0719Da
Atoms: 50
Elements: 5
Rings plus double bonds: 15

The formula C21H18N4O5S2 describes a molecule made of 21 carbon atoms, 18 hydrogen atoms, 4 nitrogen atoms, 5 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 × 2153.61%
12.011 × 21 = 252.231 g/mol
H Hydrogen × 183.86%
1.008 × 18 = 18.144 g/mol
N Nitrogen × 411.91%
14.007 × 4 = 56.028 g/mol
O Oxygen × 517.00%
15.999 × 5 = 79.995 g/mol
S Sulfur × 213.63%
32.06 × 2 = 64.120 g/mol

Look up another formula

Compounds with the formula C21H18N4O5S2

Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.

Showing 1 to 24 of 24 compounds

Methyl 2-(2-((5,6-di(furan-2-yl)-1,2,4-triazin-3-yl)thio)acetamido)-4,5-dimethylthiophene-3-carboxylate

CAS 823211-50-3C₂₁H₁₈N₄O₅S₂

N-{3-[1-(3-Nitrobenzoyl)-5-thien-2-yl-4,5-dihydro-1H-pyrazol-3-yl]phenyl}methanesulfonamide

CAS 851719-37-4C₂₁H₁₈N₄O₅S₂

2-[3-(Furan-2-ylmethyl)-4-oxoquinazolin-2-yl]sulfanyl-N-(3-sulfamoylphenyl)acetamide

CAS 852899-90-2C₂₁H₁₈N₄O₅S₂

4-(1,3-Dioxo-1,3-dihydro-2H-isoindol-2-yl)-N-[4-(1,3-thiazol-2-ylsulfamoyl)phenyl]butanamide

CAS 333430-18-5C₂₁H₁₈N₄O₅S₂

N-(4-Methoxyphenyl)-2-[[3-(4-nitrophenyl)-4-oxo-6,7-dihydrothieno[3,2-d]pyrimidin-2-yl]sulfanyl]acetamide

CAS 687568-04-3C₂₁H₁₈N₄O₅S₂

2-((3-(2-Methoxyphenyl)-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-(4-nitrophenyl)acetamide

CAS 686772-19-0C₂₁H₁₈N₄O₅S₂

N-{4-[5-(3-Nitrophenyl)-1-(thiophene-2-carbonyl)-4,5-dihydro-1H-pyrazol-3-yl]phenyl}methanesulfonamide

CAS 851717-90-3C₂₁H₁₈N₄O₅S₂

1-(4-Ethoxyphenyl)-N-[6-(methylsulfonyl)-1,3-benzothiazol-2-yl]-4-oxo-1,4-dihydropyridazine-3-carboxamide

CAS 892633-15-7C₂₁H₁₈N₄O₅S₂

N-(2,3-Dihydro-1,4-benzodioxin-6-yl)-2-(6-methyl-5,5-dioxopyrimido[5,4-c][2,1]benzothiazin-2-yl)sulfanylacetamide

CAS 895103-83-0C₂₁H₁₈N₄O₅S₂

Methyl 7-acetyl-8-methyl-1-(4-nitrophenyl)-9-phenyl-4,6-dithia-1,2,9-triazaspiro[4.4]nona-2,7-diene-3-carboxylate

CAS 670263-00-0C₂₁H₁₈N₄O₅S₂

N-[4-[(4-Ethoxy-3-nitrobenzoyl)carbamothioylamino]phenyl]thiophene-2-carboxamide

CAS 428482-84-2C₂₁H₁₈N₄O₅S₂

(Z)-N-(3-Allyl-6-sulfamoylbenzo[d]thiazol-2(3H)-ylidene)-3-(2,5-dioxopyrrolidin-1-yl)benzamide

CAS 865176-40-5C₂₁H₁₈N₄O₅S₂

3-(5-((2-((Furan-2-ylmethyl)amino)-7-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)methylene)-4-oxo-2-thioxothiazolidin-3-yl)propanoic acid

CAS 505079-03-8C₂₁H₁₈N₄O₅S₂

$Methyl 4-[2-({9-methyl-8,8-dioxo-8lambda6-thia-3,5,9-triazatricyclo[8.4.0.0^{2,7}]tetradeca-1(14),2(7),3,5,10,12-hexaen-4-yl}sulfanyl)acetamido]benzoate chemical structure, C21H18N4O5S2, CAS 895103-71-6$

Methyl 4-[2-({9-methyl-8,8-dioxo-8lambda6-thia-3,5,9-triazatricyclo[8.4.0.0^{2,7}]tetradeca-1(14),2(7),3,5,10,12-hexaen-4-yl}sulfanyl)acetamido]benzoate

CAS 895103-71-6C₂₁H₁₈N₄O₅S₂

$N-(2H-1,3-Benzodioxol-5-yl)-2-({9-ethyl-8,8-dioxo-8lambda6-thia-3,5,9-triazatricyclo[8.4.0.0^{2,7}]tetradeca-1(14),2(7),3,5,10,12-hexaen-4-yl}sulfanyl)acetamide chemical structure, C21H18N4O5S2, CAS 1111433-85-2$

N-(2H-1,3-Benzodioxol-5-yl)-2-({9-ethyl-8,8-dioxo-8lambda6-thia-3,5,9-triazatricyclo[8.4.0.0^{2,7}]tetradeca-1(14),2(7),3,5,10,12-hexaen-4-yl}sulfanyl)acetamide

CAS 1111433-85-2C₂₁H₁₈N₄O₅S₂

N-[[4-[Methyl(phenyl)sulfamoyl]phenyl]carbamothioyl]-2-nitrobenzamide

CAS 714279-06-8C₂₁H₁₈N₄O₅S₂

Methyl 7-acetyl-8-methyl-1-(2-nitrophenyl)-9-phenyl-4,6-dithia-1,2,9-triazaspiro[4.4]nona-2,7-diene-3-carboxylate

CAS 585564-14-3C₂₁H₁₈N₄O₅S₂

(Z)-N-(3-Allyl-6-sulfamoylbenzo[d]thiazol-2(3H)-ylidene)-4-(2,5-dioxopyrrolidin-1-yl)benzamide

CAS 865176-24-5C₂₁H₁₈N₄O₅S₂

N-{3-[5-(3-Nitrophenyl)-1-(thiophene-2-carbonyl)-4,5-dihydro-1H-pyrazol-3-yl]phenyl}methanesulfonamide

CAS 851719-00-1C₂₁H₁₈N₄O₅S₂

2-((3-(3-Methoxyphenyl)-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-(3-nitrophenyl)acetamide

CAS 877655-31-7C₂₁H₁₈N₄O₅S₂

2-((3-(3-Methoxyphenyl)-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-(4-nitrophenyl)acetamide

CAS 877655-33-9C₂₁H₁₈N₄O₅S₂

(E)-2-Cyano-3-[5-(4-morpholin-4-ylsulfonylphenyl)furan-2-yl]-N-(1,3-thiazol-2-yl)prop-2-enamide

CAS 743470-61-3C₂₁H₁₈N₄O₅S₂

[4-[(E)-[5-Imino-2-(3-methylphenyl)-7-oxo-[1,3,4]thiadiazolo[3,2-a]pyrimidin-6-ylidene]methyl]-2-methoxyphenyl] methanesulfonate

CAS 445457-96-5C₂₁H₁₈N₄O₅S₂

AChE-IN-82

CAS 3075378-48-9C₂₁H₁₈N₄O₅S₂

Frequently asked questions

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What is the molar mass of C21H18N4O5S2?

The molar mass of C21H18N4O5S2 is 470.52 g/mol, calculated from standard atomic weights for 21 carbon atoms, 18 hydrogen atoms, 4 nitrogen atoms, 5 oxygen atoms and 2 sulfur atoms. The monoisotopic mass is 470.0719 Da.

How many compounds have the formula C21H18N4O5S2?

CompoundList lists 24 compounds with the molecular formula C21H18N4O5S2, including Methyl 2-(2-((5,6-di(furan-2-yl)-1,2,4-triazin-3-yl)thio)acetamido)-4,5-dimethylthiophene-3-carboxylate, N-{3-[1-(3-Nitrobenzoyl)-5-thien-2-yl-4,5-dihydro-1H-pyrazol-3-yl]phenyl}methanesulfonamide, 2-[3-(Furan-2-ylmethyl)-4-oxoquinazolin-2-yl]sulfanyl-N-(3-sulfamoylphenyl)acetamide. 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 C21H18N4O5S2?

C21H18N4O5S2 has a degree of unsaturation of 15. 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.