Molecular formula

C₂₀H₂₁N₃O₄S

271 compounds have this formula on CompoundList.

Molar mass: 399.46g/mol
Monoisotopic mass: 399.1253Da
Atoms: 49
Elements: 5
Rings plus double bonds: 12

The formula C20H21N3O4S describes a molecule made of 20 carbon atoms, 21 hydrogen atoms, 3 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 × 2060.14%
12.011 × 20 = 240.220 g/mol
H Hydrogen × 215.30%
1.008 × 21 = 21.168 g/mol
N Nitrogen × 310.52%
14.007 × 3 = 42.021 g/mol
O Oxygen × 416.02%
15.999 × 4 = 63.996 g/mol
S Sulfur × 18.03%
32.06 × 1 = 32.060 g/mol

Look up another formula

Compounds with the formula C20H21N3O4S

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

Showing 201 to 271 of 271 compounds

N-(5-(2,4-Dimethylphenyl)-1,3,4-oxadiazol-2-yl)-4-(isopropylsulfonyl)benzamide

CAS 941913-55-9C₂₀H₂₁N₃O₄S

4-(4-Hydroxy-3-methoxyphenyl)-5-(3-methoxypropyl)-3-(thiophen-2-yl)-4,5-dihydropyrrolo[3,4-c]pyrazol-6(1H)-one

CAS 939742-60-6C₂₀H₂₁N₃O₄S

$N-Benzyl-8-thia-4,6-diazatricyclo[7.5.0.0^{2,7}]tetradeca-1(9),2(7),3,5-tetraen-3-amine, oxalic acid chemical structure, C20H21N3O4S, CAS 1135016-74-8$

N-Benzyl-8-thia-4,6-diazatricyclo[7.5.0.0^{2,7}]tetradeca-1(9),2(7),3,5-tetraen-3-amine, oxalic acid

CAS 1135016-74-8C₂₀H₂₁N₃O₄S

8-((1,2-Dihydroacenaphthylen-3-yl)sulfonyl)-3-methyl-1,3,8-triazaspiro[4.5]decane-2,4-dione

CAS 1021222-79-6C₂₀H₂₁N₃O₄S

4-Methoxy-3-methyl-N-{2-[(6-phenylpyridazin-3-yl)oxy]ethyl}benzene-1-sulfonamide

CAS 920399-35-5C₂₀H₂₁N₃O₄S

Methyl 3-({[2-(thiomorpholin-4-ylcarbonyl)phenyl]carbamoyl}amino)benzoate

CAS 1081126-50-2C₂₀H₂₁N₃O₄S

N-(4,5-Dimethoxy-2-methylphenyl)-2-(furan-2-yl)-4-methyl-6-(methylsulfanyl)pyrimidine-5-carboxamide

CAS 1030721-71-1C₂₀H₂₁N₃O₄S

3-[1-(4-Methylbenzenesulfonyl)piperidin-4-yl]-1,2,3,4-tetrahydroquinazoline-2,4-dione

CAS 2034459-13-5C₂₀H₂₁N₃O₄S

N-(Pyridin-3-ylmethyl)-2-[2-(3,4,5-trimethoxyphenyl)-1,3-thiazol-4-yl]acetamide

CAS 1010929-25-5C₂₀H₂₁N₃O₄S

N-(5-(4-Ethylbenzyl)-1,3,4-oxadiazol-2-yl)-3-(ethylsulfonyl)benzamide

CAS 1170595-14-8C₂₀H₂₁N₃O₄S

N-(5-(3,4-Dimethylbenzyl)-1,3,4-oxadiazol-2-yl)-3-(phenylsulfonyl)propanamide

CAS 1172811-16-3C₂₀H₂₁N₃O₄S

$4-(Dimethylsulfamoyl)-N-{11-oxo-1-azatricyclo[6.3.1.0^{4,12}]dodeca-4(12),5,7-trien-6-yl}benzamide chemical structure, C20H21N3O4S, CAS 1211338-54-3$

4-(Dimethylsulfamoyl)-N-{11-oxo-1-azatricyclo[6.3.1.0^{4,12}]dodeca-4(12),5,7-trien-6-yl}benzamide

CAS 1211338-54-3C₂₀H₂₁N₃O₄S

N-(3-Acetylphenyl)-2-(3-butyl-2,4-dioxo-3,4-dihydrothieno[3,2-d]pyrimidin-1(2H)-yl)acetamide

CAS 1252824-89-7C₂₀H₂₁N₃O₄S

N-(4-Acetylphenyl)-2-(3-butyl-2,4-dioxo-3,4-dihydrothieno[3,2-d]pyrimidin-1(2H)-yl)acetamide

CAS 1252825-56-1C₂₀H₂₁N₃O₄S

Methyl 3-(N-methyl-N-phenylsulfamoyl)-1-(2-methylbenzyl)-1H-pyrazole-4-carboxylate

CAS 1251602-31-9C₂₀H₂₁N₃O₄S

3-(4-Methoxyphenyl)-8-(phenylsulfonyl)-1,4,8-triazaspiro[4.5]dec-3-en-2-one

CAS 1217057-35-6C₂₀H₂₁N₃O₄S

3-(3-Methoxyphenyl)-8-(phenylsulfonyl)-1,4,8-triazaspiro[4.5]dec-3-en-2-one

CAS 1358758-91-4C₂₀H₂₁N₃O₄S

N5-(3,5-dimethylphenyl)-4-hydroxy-N2,N2,3-trimethyl-6-oxo-6,7-dihydrothieno[2,3-b]pyridine-2,5-dicarboxamide

CAS 1251590-53-0C₂₀H₂₁N₃O₄S

2-(6,7-Dimethoxy-4-oxoquinazolin-3(4H)-yl)-N-[2-(phenylsulfanyl)ethyl]acetamide

CAS 1574496-25-5C₂₀H₂₁N₃O₄S

N-(2,5-Dimethoxyphenyl)-5-{[(4,6-dimethylpyrimidin-2-yl)sulfanyl]methyl}furan-2-carboxamide

CAS 1401560-03-9C₂₀H₂₁N₃O₄S

3-(Benzo[d]thiazol-2-yloxy)-N-(3,4-dimethoxybenzyl)azetidine-1-carboxamide

CAS 1421453-11-3C₂₀H₂₁N₃O₄S

N-(3,4-Dimethoxyphenyl)-1-(4-methoxybenzo[d]thiazol-2-yl)azetidine-3-carboxamide

CAS 1396626-05-3C₂₀H₂₁N₃O₄S

2-Methoxy-4,5-dimethyl-N-(2-(1-methyl-6-oxo-1,6-dihydropyridazin-3-yl)phenyl)benzenesulfonamide

CAS 1448058-78-3C₂₀H₂₁N₃O₄S

N-Benzyl-5-(3-cyanomorpholine-4-carbonyl)-2-methylbenzene-1-sulfonamide

CAS 1384675-89-1C₂₀H₂₁N₃O₄S

Frequently asked questions

Still have a question?

The help centre explains buying, quotes and supplier badges step by step, or you can write to our team.

Help centre Contact us

What is the molar mass of C20H21N3O4S?

The molar mass of C20H21N3O4S is 399.46 g/mol, calculated from standard atomic weights for 20 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms, 4 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 399.1253 Da.

How many compounds have the formula C20H21N3O4S?

CompoundList lists 271 compounds with the molecular formula C20H21N3O4S, including N-(5-(2,4-Dimethylphenyl)-1,3,4-oxadiazol-2-yl)-4-(isopropylsulfonyl)benzamide, 4-(4-Hydroxy-3-methoxyphenyl)-5-(3-methoxypropyl)-3-(thiophen-2-yl)-4,5-dihydropyrrolo[3,4-c]pyrazol-6(1H)-one, N-Benzyl-8-thia-4,6-diazatricyclo[7.5.0.0^{2,7}]tetradeca-1(9),2(7),3,5-tetraen-3-amine, oxalic acid. 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 C20H21N3O4S?

C20H21N3O4S has a degree of unsaturation of 12. 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.