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Molecular formula

C21H21N5O3S2

20 compounds have this formula on CompoundList.

Molar mass
455.55g/mol
Monoisotopic mass
455.1086Da
Atoms
52
Elements
5
Rings plus double bonds
14

The formula C21H21N5O3S2 describes a molecule made of 21 carbon atoms, 21 hydrogen atoms, 5 nitrogen atoms, 3 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 × 2155.37%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 214.65%
    1.008 × 21 = 21.168 g/mol
  • N Nitrogen × 515.37%
    14.007 × 5 = 70.035 g/mol
  • O Oxygen × 310.54%
    15.999 × 3 = 47.997 g/mol
  • S Sulfur × 214.08%
    32.06 × 2 = 64.120 g/mol
Look up another formula

Compounds with the formula C21H21N5O3S2

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

Showing 1 to 20 of 20 compounds

N-(2-Ethoxyphenyl)-2-((4-methyl-5-((2-oxobenzo[d]thiazol-3(2H)-yl)methyl)-4H-1,2,4-triazol-3-yl)thio)acetamide chemical structure, C21H21N5O3S2, CAS 847400-41-3
N-(2-Ethoxyphenyl)-2-((4-methyl-5-((2-oxobenzo[d]thiazol-3(2H)-yl)methyl)-4H-1,2,4-triazol-3-yl)thio)acetamide
CAS 847400-41-3C21H21N5O3S2
N-(4-Ethoxyphenyl)-2-((4-methyl-5-((2-oxobenzo[d]thiazol-3(2H)-yl)methyl)-4H-1,2,4-triazol-3-yl)thio)acetamide chemical structure, C21H21N5O3S2, CAS 847400-42-4
N-(4-Ethoxyphenyl)-2-((4-methyl-5-((2-oxobenzo[d]thiazol-3(2H)-yl)methyl)-4H-1,2,4-triazol-3-yl)thio)acetamide
CAS 847400-42-4C21H21N5O3S2
4-(Diethylamino)-N-((4-(4-nitrophenyl)thiazol-2-yl)carbamothioyl)benzamide chemical structure, C21H21N5O3S2, CAS 351191-14-5
4-(Diethylamino)-N-((4-(4-nitrophenyl)thiazol-2-yl)carbamothioyl)benzamide
CAS 351191-14-5C21H21N5O3S2
N-(3-Acetamidophenyl)-2-((4-(2-oxo-2-((pyridin-2-ylmethyl)amino)ethyl)thiazol-2-yl)thio)acetamide chemical structure, C21H21N5O3S2, CAS 954094-65-6
N-(3-Acetamidophenyl)-2-((4-(2-oxo-2-((pyridin-2-ylmethyl)amino)ethyl)thiazol-2-yl)thio)acetamide
CAS 954094-65-6C21H21N5O3S2
N-(3-Acetamidophenyl)-2-((4-(2-oxo-2-((pyridin-4-ylmethyl)amino)ethyl)thiazol-2-yl)thio)acetamide chemical structure, C21H21N5O3S2, CAS 953927-77-0
N-(3-Acetamidophenyl)-2-((4-(2-oxo-2-((pyridin-4-ylmethyl)amino)ethyl)thiazol-2-yl)thio)acetamide
CAS 953927-77-0C21H21N5O3S2
1-(5-((2-(3,4-Dihydroquinolin-1(2H)-yl)-2-oxoethyl)thio)-1,3,4-thiadiazol-2-yl)-3-(4-methoxyphenyl)urea chemical structure, C21H21N5O3S2, CAS 941999-08-2
1-(5-((2-(3,4-Dihydroquinolin-1(2H)-yl)-2-oxoethyl)thio)-1,3,4-thiadiazol-2-yl)-3-(4-methoxyphenyl)urea
CAS 941999-08-2C21H21N5O3S2
Ethyl 4-cyano-5-[[2-[(3-cyano-6-methyl-7,8-dihydro-5H-1,6-naphthyridin-2-yl)sulfanyl]acetyl]amino]-3-methylthiophene-2-carboxylate chemical structure, C21H21N5O3S2, CAS 488793-00-6
Ethyl 4-cyano-5-[[2-[(3-cyano-6-methyl-7,8-dihydro-5H-1,6-naphthyridin-2-yl)sulfanyl]acetyl]amino]-3-methylthiophene-2-carboxylate
CAS 488793-00-6C21H21N5O3S2
N-(Benzo[d]thiazol-2-yl)-2-((1,3-dimethyl-2,4-dioxo-6-propyl-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidin-5-yl)thio)acetamide chemical structure, C21H21N5O3S2, CAS 941924-45-4
N-(Benzo[d]thiazol-2-yl)-2-((1,3-dimethyl-2,4-dioxo-6-propyl-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidin-5-yl)thio)acetamide
CAS 941924-45-4C21H21N5O3S2
1-(4-Oxo-3-{(Z)-[4-oxo-3-(prop-2-en-1-yl)-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-4H-pyrido[1,2-a]pyrimidin-2-yl)piperidine-4-carboxamide chemical structure, C21H21N5O3S2, CAS 607704-03-0
1-(4-Oxo-3-{(Z)-[4-oxo-3-(prop-2-en-1-yl)-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-4H-pyrido[1,2-a]pyrimidin-2-yl)piperidine-4-carboxamide
CAS 607704-03-0C21H21N5O3S2
N-{2-[6-(Benzylsulfanyl)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl]ethyl}-4-methoxybenzene-1-sulfonamide chemical structure, C21H21N5O3S2, CAS 873002-06-3
N-{2-[6-(Benzylsulfanyl)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl]ethyl}-4-methoxybenzene-1-sulfonamide
CAS 873002-06-3C21H21N5O3S2
N-[4-({2-[2-(4-Methylphenyl)-[1,2,4]triazolo[3,2-b][1,3]thiazol-6-yl]ethyl}sulfamoyl)phenyl]acetamide chemical structure, C21H21N5O3S2, CAS 877642-36-9
N-[4-({2-[2-(4-Methylphenyl)-[1,2,4]triazolo[3,2-b][1,3]thiazol-6-yl]ethyl}sulfamoyl)phenyl]acetamide
CAS 877642-36-9C21H21N5O3S2
N-[5-[2-(4-Acetamidoanilino)-2-oxoethyl]sulfanyl-1,3,4-thiadiazol-2-yl]-3-phenylpropanamide chemical structure, C21H21N5O3S2, CAS 701229-55-2
N-[5-[2-(4-Acetamidoanilino)-2-oxoethyl]sulfanyl-1,3,4-thiadiazol-2-yl]-3-phenylpropanamide
CAS 701229-55-2C21H21N5O3S2
1-[4-(2,1,3-Benzothiadiazol-4-ylsulfonyl)piperazin-1-yl]-3-(1H-indol-3-yl)propan-1-one chemical structure, C21H21N5O3S2, CAS 951998-83-7
1-[4-(2,1,3-Benzothiadiazol-4-ylsulfonyl)piperazin-1-yl]-3-(1H-indol-3-yl)propan-1-one
CAS 951998-83-7C21H21N5O3S2
N-(4-Acetamidophenyl)-2-((4-(2-oxo-2-((pyridin-3-ylmethyl)amino)ethyl)thiazol-2-yl)thio)acetamide chemical structure, C21H21N5O3S2, CAS 941891-85-6
N-(4-Acetamidophenyl)-2-((4-(2-oxo-2-((pyridin-3-ylmethyl)amino)ethyl)thiazol-2-yl)thio)acetamide
CAS 941891-85-6C21H21N5O3S2
N-(4-Acetamidophenyl)-2-((4-(2-oxo-2-((pyridin-2-ylmethyl)amino)ethyl)thiazol-2-yl)thio)acetamide chemical structure, C21H21N5O3S2, CAS 941937-24-2
N-(4-Acetamidophenyl)-2-((4-(2-oxo-2-((pyridin-2-ylmethyl)amino)ethyl)thiazol-2-yl)thio)acetamide
CAS 941937-24-2C21H21N5O3S2
N-(4-Acetamidophenyl)-2-((4-(2-oxo-2-((pyridin-4-ylmethyl)amino)ethyl)thiazol-2-yl)thio)acetamide chemical structure, C21H21N5O3S2, CAS 941997-65-5
N-(4-Acetamidophenyl)-2-((4-(2-oxo-2-((pyridin-4-ylmethyl)amino)ethyl)thiazol-2-yl)thio)acetamide
CAS 941997-65-5C21H21N5O3S2
N-(3,4-Dimethoxyphenethyl)-2-((6-(thiophen-2-yl)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)thio)acetamide chemical structure, C21H21N5O3S2, CAS 894050-12-5
N-(3,4-Dimethoxyphenethyl)-2-((6-(thiophen-2-yl)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)thio)acetamide
CAS 894050-12-5C21H21N5O3S2
2-((6-Ethyl-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidin-5-yl)thio)-N-(6-methylbenzo[d]thiazol-2-yl)acetamide chemical structure, C21H21N5O3S2, CAS 941924-39-6
2-((6-Ethyl-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidin-5-yl)thio)-N-(6-methylbenzo[d]thiazol-2-yl)acetamide
CAS 941924-39-6C21H21N5O3S2
N-(Furan-2-ylmethyl)-2-(4-oxo-2-(piperidin-1-yl)-7-(thiophen-2-yl)thiazolo[4,5-d]pyridazin-5(4H)-yl)acetamide chemical structure, C21H21N5O3S2, CAS 1105234-24-9
N-(Furan-2-ylmethyl)-2-(4-oxo-2-(piperidin-1-yl)-7-(thiophen-2-yl)thiazolo[4,5-d]pyridazin-5(4H)-yl)acetamide
CAS 1105234-24-9C21H21N5O3S2
2-((7,7-Dimethyl-5-oxo-4-(p-tolyl)-5,6,7,9-tetrahydro-4H-pyrano[4',3':4,5]thieno[3,2-e][1,2,4]triazolo[4,3-a]pyrimidin-1-yl)thio)acetamide chemical structure, C21H21N5O3S2, CAS 308289-87-4
2-((7,7-Dimethyl-5-oxo-4-(p-tolyl)-5,6,7,9-tetrahydro-4H-pyrano[4',3':4,5]thieno[3,2-e][1,2,4]triazolo[4,3-a]pyrimidin-1-yl)thio)acetamide
CAS 308289-87-4C21H21N5O3S2

Frequently asked questions

What is the molar mass of C21H21N5O3S2?

The molar mass of C21H21N5O3S2 is 455.55 g/mol, calculated from standard atomic weights for 21 carbon atoms, 21 hydrogen atoms, 5 nitrogen atoms, 3 oxygen atoms and 2 sulfur atoms. The monoisotopic mass is 455.1086 Da.

How many compounds have the formula C21H21N5O3S2?

CompoundList lists 20 compounds with the molecular formula C21H21N5O3S2, including N-(2-Ethoxyphenyl)-2-((4-methyl-5-((2-oxobenzo[d]thiazol-3(2H)-yl)methyl)-4H-1,2,4-triazol-3-yl)thio)acetamide, N-(4-Ethoxyphenyl)-2-((4-methyl-5-((2-oxobenzo[d]thiazol-3(2H)-yl)methyl)-4H-1,2,4-triazol-3-yl)thio)acetamide, 4-(Diethylamino)-N-((4-(4-nitrophenyl)thiazol-2-yl)carbamothioyl)benzamide. 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 C21H21N5O3S2?

C21H21N5O3S2 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.