Molecular formula

C₂₁H₁₆N₄O₃S₂

23 compounds have this formula on CompoundList.

Molar mass: 436.50g/mol
Monoisotopic mass: 436.0664Da
Atoms: 46
Elements: 5
Rings plus double bonds: 16

The formula C21H16N4O3S2 describes a molecule made of 21 carbon atoms, 16 hydrogen atoms, 4 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 × 2157.78%
12.011 × 21 = 252.231 g/mol
H Hydrogen × 163.69%
1.008 × 16 = 16.128 g/mol
N Nitrogen × 412.84%
14.007 × 4 = 56.028 g/mol
O Oxygen × 311.00%
15.999 × 3 = 47.997 g/mol
S Sulfur × 214.69%
32.06 × 2 = 64.120 g/mol

Look up another formula

Compounds with the formula C21H16N4O3S2

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

Showing 1 to 23 of 23 compounds

(5E)-5-[(2,5-Dimethyl-1-pyridin-3-ylpyrrol-3-yl)methylidene]-3-(4-nitrophenyl)-2-sulfanylidene-1,3-thiazolidin-4-one

CAS 1164483-51-5C₂₁H₁₆N₄O₃S₂

2-(1,3-Benzothiazol-2-ylsulfanyl)-N-[7-(furan-2-yl)-5-oxo-5,6,7,8-tetrahydroquinazolin-2-yl]acetamide

CAS 510766-39-9C₂₁H₁₆N₄O₃S₂

Bcl-xL antagonist 2

CAS 1235032-75-3C₂₁H₁₆N₄O₃S₂

N-(Benzo[d][1,3]dioxol-5-yl)-2-((2-methyl-7-phenylthiazolo[4,5-d]pyridazin-4-yl)thio)acetamide

CAS 946381-15-3C₂₁H₁₆N₄O₃S₂

4-[[4-(2-Benzamido-4-methyl-1,3-thiazol-5-yl)-1,3-thiazol-2-yl]amino]benzoic acid

CAS 315704-34-8C₂₁H₁₆N₄O₃S₂

$N-(6-Ethoxy-1,3-benzothiazol-2-yl)-10-methyl-2-oxo-6-thia-1,8-diazatricyclo[7.4.0.0^{3,7}]trideca-3(7),4,8,10,12-pentaene-5-carboxamide chemical structure, C21H16N4O3S2, CAS 690253-11-3$

N-(6-Ethoxy-1,3-benzothiazol-2-yl)-10-methyl-2-oxo-6-thia-1,8-diazatricyclo[7.4.0.0^{3,7}]trideca-3(7),4,8,10,12-pentaene-5-carboxamide

CAS 690253-11-3C₂₁H₁₆N₄O₃S₂

N-(2-((2-Amino-2-oxoethyl)thio)-4-phenylthiazol-5-yl)-2-(1H-indol-3-yl)-2-oxoacetamide

CAS 946327-51-1C₂₁H₁₆N₄O₃S₂

3-(1,3-Benzodioxol-5-yl)-6-[({3-[4-(methylsulfanyl)phenyl]-1,2,4-oxadiazol-5-yl}methyl)sulfanyl]pyridazine

CAS 1114914-93-0C₂₁H₁₆N₄O₃S₂

N-(4-(2-((4-(Furan-2-yl)thiazol-2-yl)amino)-2-oxoethyl)thiazol-2-yl)cinnamamide

CAS 1207061-65-1C₂₁H₁₆N₄O₃S₂

N-(5-(5-Phenylisoxazole-3-carbonyl)-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-yl)thiophene-2-carboxamide

CAS 1351659-16-9C₂₁H₁₆N₄O₃S₂

N-(2,1,3-Benzoxadiazol-4-yl)-3-{(5Z)-4-oxo-5-[(2E)-3-phenylprop-2-en-1-ylidene]-2-thioxo-1,3-thiazolidin-3-yl}propanamide

CAS 904516-28-5C₂₁H₁₆N₄O₃S₂

2-[(5Z)-5-(4-Methoxybenzylidene)-4-oxo-2-thioxo-1,3-thiazolidin-3-yl]-N-(quinoxalin-6-yl)acetamide

CAS 929843-38-9C₂₁H₁₆N₄O₃S₂

2-[(5Z)-5-(3-Methoxybenzylidene)-4-oxo-2-thioxo-1,3-thiazolidin-3-yl]-N-(quinoxalin-6-yl)acetamide

CAS 929830-75-1C₂₁H₁₆N₄O₃S₂

2-[(5Z)-5-(2-Methoxybenzylidene)-4-oxo-2-thioxo-1,3-thiazolidin-3-yl]-N-(quinoxalin-6-yl)acetamide

CAS 929845-99-8C₂₁H₁₆N₄O₃S₂

3-((4-(3-(Methylthio)phenyl)-1,1-dioxido-3-oxo-3,4-dihydro-2H-pyrido[2,3-e][1,2,4]thiadiazin-2-yl)methyl)benzonitrile

CAS 1251606-46-8C₂₁H₁₆N₄O₃S₂

2-((6-(Benzo[d][1,3]dioxol-5-yl)pyridazin-3-yl)thio)-N-(6-methylbenzo[d]thiazol-2-yl)acetamide

CAS 872695-63-1C₂₁H₁₆N₄O₃S₂

(E)-N-(6-Methylbenzo[d]thiazol-2-yl)-3-(5-nitrothiophen-2-yl)-N-(pyridin-3-ylmethyl)acrylamide

CAS 895009-29-7C₂₁H₁₆N₄O₃S₂

3-(Methylthio)-N-(6-nitrobenzo[d]thiazol-2-yl)-N-(pyridin-2-ylmethyl)benzamide

CAS 886939-03-3C₂₁H₁₆N₄O₃S₂

4-(Methylthio)-N-(6-nitrobenzo[d]thiazol-2-yl)-N-(pyridin-2-ylmethyl)benzamide

CAS 886939-21-5C₂₁H₁₆N₄O₃S₂

N-(6-Nitrobenzo[d]thiazol-2-yl)-2-(phenylthio)-N-(pyridin-3-ylmethyl)acetamide

CAS 899991-05-0C₂₁H₁₆N₄O₃S₂

4-Benzenesulfonamido-N-[4-(pyridin-4-yl)-1,3-thiazol-2-yl]benzamide

CAS 896364-12-8C₂₁H₁₆N₄O₃S₂

3-Ethyl-5-[[3-(3-nitrophenyl)-1-phenyl-1H-pyrazol-4-yl]methylene]-2-thioxo-4-thiazolidinone

CAS 376359-06-7C₂₁H₁₆N₄O₃S₂

N-(3-Acetylphenyl)-2-({3-[3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl]pyridin-2-yl}sulfanyl)acetamide

CAS 1251574-42-1C₂₁H₁₆N₄O₃S₂

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What is the molar mass of C21H16N4O3S2?

The molar mass of C21H16N4O3S2 is 436.50 g/mol, calculated from standard atomic weights for 21 carbon atoms, 16 hydrogen atoms, 4 nitrogen atoms, 3 oxygen atoms and 2 sulfur atoms. The monoisotopic mass is 436.0664 Da.

How many compounds have the formula C21H16N4O3S2?

CompoundList lists 23 compounds with the molecular formula C21H16N4O3S2, including (5E)-5-[(2,5-Dimethyl-1-pyridin-3-ylpyrrol-3-yl)methylidene]-3-(4-nitrophenyl)-2-sulfanylidene-1,3-thiazolidin-4-one, 2-(1,3-Benzothiazol-2-ylsulfanyl)-N-[7-(furan-2-yl)-5-oxo-5,6,7,8-tetrahydroquinazolin-2-yl]acetamide, Bcl-xL antagonist 2. 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 C21H16N4O3S2?

C21H16N4O3S2 has a degree of unsaturation of 16. 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.