Molecular formula

C₂₁H₂₁N₅O₄S

73 compounds have this formula on CompoundList.

Molar mass: 439.49g/mol
Monoisotopic mass: 439.1314Da
Atoms: 52
Elements: 5
Rings plus double bonds: 14

The formula C21H21N5O4S describes a molecule made of 21 carbon atoms, 21 hydrogen atoms, 5 nitrogen atoms, 4 oxygen atoms and 1 sulfur atom. 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 × 2157.39%
12.011 × 21 = 252.231 g/mol
H Hydrogen × 214.82%
1.008 × 21 = 21.168 g/mol
N Nitrogen × 515.94%
14.007 × 5 = 70.035 g/mol
O Oxygen × 414.56%
15.999 × 4 = 63.996 g/mol
S Sulfur × 17.29%
32.06 × 1 = 32.060 g/mol

Look up another formula

Compounds with the formula C21H21N5O4S

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

Showing 1 to 73 of 73 compounds

Furan-2-yl(4-((6-hydroxythiazolo[3,2-b][1,2,4]triazol-5-yl)(3-methoxyphenyl)methyl)piperazin-1-yl)methanone

CAS 868220-53-5C₂₁H₂₁N₅O₄S

IRAK inhibitor 3

CAS 1012343-93-9C₂₁H₂₁N₅O₄S

Methyl 2-{[({5-[3-(acetylamino)phenyl]-4-methyl-4H-1,2,4-triazol-3-yl}sulfanyl)acetyl]amino}benzoate

CAS 500265-70-3C₂₁H₂₁N₅O₄S

2-[[4-Amino-5-(7-methoxy-1-benzofuran-2-yl)-1,2,4-triazol-3-yl]sulfanyl]-N-(2-methoxy-5-methylphenyl)acetamide

CAS 694502-67-5C₂₁H₂₁N₅O₄S

2-Methyl-5-nitro-N-(4-(6-(pyrrolidin-1-yl)pyridazin-3-yl)phenyl)benzenesulfonamide

CAS 898446-44-1C₂₁H₂₁N₅O₄S

2-Methyl-5-nitro-N-[3-(6-pyrrolidinopyridazin-3-yl)phenyl]benzenesulfonamide

CAS 898422-03-2C₂₁H₂₁N₅O₄S

1-(4-(4-(Furan-2-carbonyl)piperazine-1-carbonyl)thiazol-2-yl)-3-(p-tolyl)urea

CAS 941880-64-4C₂₁H₂₁N₅O₄S

Isobutyl 2-amino-1-(4-sulfamoylphenyl)-1H-pyrrolo[2,3-b]quinoxaline-3-carboxylate

CAS 799831-75-7C₂₁H₂₁N₅O₄S

7-(3-Oxo-3-(4-(pyridin-2-yl)piperazin-1-yl)propyl)-6-thioxo-6,7-dihydro-[1,3]dioxolo[4,5-g]quinazolin-8(5H)-one

CAS 688055-44-9C₂₁H₂₁N₅O₄S

Methyl 4-oxo-3-{2-oxo-2-[4-(pyridin-2-yl)piperazin-1-yl]ethyl}-2-sulfanylidene-1,2,3,4-tetrahydroquinazoline-7-carboxylate

CAS 946329-18-6C₂₁H₂₁N₅O₄S

2-(7-(Furan-2-yl)-4-oxo-2-(piperidin-1-yl)thiazolo[4,5-d]pyridazin-5(4H)-yl)-N-(furan-2-ylmethyl)acetamide

CAS 1105241-54-0C₂₁H₂₁N₅O₄S

3-(4-Oxo-4,5-dihydro-3H-pyrimido[5,4-b]indol-3-yl)-N-(4-sulfamoylphenethyl)propanamide

CAS 1105214-26-3C₂₁H₂₁N₅O₄S

N-(2-((3-(3,4-Dimethoxyphenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)oxy)ethyl)-2-(thiophen-2-yl)acetamide

CAS 1021031-26-4C₂₁H₂₁N₅O₄S

2-Methoxy-5-methyl-N-(2-((3-phenyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)oxy)ethyl)benzenesulfonamide

CAS 1021082-26-7C₂₁H₂₁N₅O₄S

N-(2-((3-(3-Methoxyphenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)oxy)ethyl)-3-methylbenzenesulfonamide

CAS 1021082-45-0C₂₁H₂₁N₅O₄S

N-(2-((3-(3-Methoxyphenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)oxy)ethyl)-1-phenylmethanesulfonamide

CAS 1020976-34-4C₂₁H₂₁N₅O₄S

4-Methoxy-3-methyl-N-(2-((3-phenyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)oxy)ethyl)benzenesulfonamide

CAS 1021051-06-8C₂₁H₂₁N₅O₄S

2-Nitro-N-(3-(6-(piperidin-1-yl)pyridazin-3-yl)phenyl)benzenesulfonamide

CAS 898446-20-3C₂₁H₂₁N₅O₄S

4-[2-Methoxy-5-(6-methyl-[1,2,4]triazolo[3,4-a]phthalazin-3-yl)phenyl]sulfonylmorpholine

CAS 577997-54-7C₂₁H₂₁N₅O₄S

4-[4-Methoxy-3-(6-methyl-[1,2,4]triazolo[3,4-a]phthalazin-3-yl)phenyl]sulfonylmorpholine

CAS 708239-40-1C₂₁H₂₁N₅O₄S

4-(2-Methylpropanoylamino)-N-[4-(pyrimidin-2-ylsulfamoyl)phenyl]benzamide

CAS 701219-48-9C₂₁H₂₁N₅O₄S

Furan-2-yl(4-((6-hydroxythiazolo[3,2-b][1,2,4]triazol-5-yl)(4-methoxyphenyl)methyl)piperazin-1-yl)methanone

CAS 868219-87-8C₂₁H₂₁N₅O₄S

2-((8,9-Dimethoxy-2-methyl-[1,2,4]triazolo[1,5-c]quinazolin-5-yl)thio)-N-(3-methoxyphenyl)acetamide

CAS 901755-72-4C₂₁H₂₁N₅O₄S

$N-(2,5-Dimethoxyphenyl)-2-{5-oxo-10-thia-3,4,6,8-tetraazatetracyclo[7.7.0.0^{2,6}.0^{11,16}]hexadeca-1(9),2,7,11(16)-tetraen-4-yl}acetamide chemical structure, C21H21N5O4S, CAS 1207036-28-9$

N-(2,5-Dimethoxyphenyl)-2-{5-oxo-10-thia-3,4,6,8-tetraazatetracyclo[7.7.0.0^{2,6}.0^{11,16}]hexadeca-1(9),2,7,11(16)-tetraen-4-yl}acetamide

CAS 1207036-28-9C₂₁H₂₁N₅O₄S

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What is the molar mass of C21H21N5O4S?

The molar mass of C21H21N5O4S is 439.49 g/mol, calculated from standard atomic weights for 21 carbon atoms, 21 hydrogen atoms, 5 nitrogen atoms, 4 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 439.1314 Da.

How many compounds have the formula C21H21N5O4S?

CompoundList lists 73 compounds with the molecular formula C21H21N5O4S, including Furan-2-yl(4-((6-hydroxythiazolo[3,2-b][1,2,4]triazol-5-yl)(3-methoxyphenyl)methyl)piperazin-1-yl)methanone, IRAK inhibitor 3, Methyl 2-{[({5-[3-(acetylamino)phenyl]-4-methyl-4H-1,2,4-triazol-3-yl}sulfanyl)acetyl]amino}benzoate. 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 C21H21N5O4S?

C21H21N5O4S 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.