Molecular formula

C₂₁H₁₈ClNO₅S

19 compounds have this formula on CompoundList.

Molar mass: 431.89g/mol
Monoisotopic mass: 431.0594Da
Atoms: 47
Elements: 6
Rings plus double bonds: 13

The formula C21H18ClNO5S describes a molecule made of 21 carbon atoms, 18 hydrogen atoms, 1 chlorine atom, 1 nitrogen atom, 5 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 × 2158.40%
12.011 × 21 = 252.231 g/mol
H Hydrogen × 184.20%
1.008 × 18 = 18.144 g/mol
Cl Chlorine × 18.21%
35.45 × 1 = 35.450 g/mol
N Nitrogen × 13.24%
14.007 × 1 = 14.007 g/mol
O Oxygen × 518.52%
15.999 × 5 = 79.995 g/mol
S Sulfur × 17.42%
32.06 × 1 = 32.060 g/mol

Look up another formula

Compounds with the formula C21H18ClNO5S

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

Showing 1 to 19 of 19 compounds

3-[Benzyl(4-methoxyphenyl)sulfamoyl]-4-chlorobenzoic acid

CAS 565173-05-9C₂₁H₁₈ClNO₅S

3-[Benzyl(2-methoxyphenyl)sulfamoyl]-4-chlorobenzoic acid

CAS 565166-97-4C₂₁H₁₈ClNO₅S

5-[Benzyl-(4-methoxy-phenyl)-sulfamoyl]-2-chloro-benzoic acid

CAS 565198-70-1C₂₁H₁₈ClNO₅S

N-((4-Chlorophenyl)sulfonyl)-2-methoxy-N-(4-methoxyphenyl)benzamide

CAS 431923-22-7C₂₁H₁₈ClNO₅S

N-(3-Chlorobenzyl)-N-(1,1-dioxidotetrahydrothiophen-3-yl)-2-oxo-2H-chromene-3-carboxamide

CAS 578722-29-9C₂₁H₁₈ClNO₅S

N-Benzyl-6-chloro-N-(1,1-dioxidotetrahydrothiophen-3-yl)-4-oxo-4H-chromene-2-carboxamide

CAS 874138-85-9C₂₁H₁₈ClNO₅S

N-([4-(2-Chlorophenoxy)phenyl]sulfonyl)phenylalanine

CAS 1009715-73-4C₂₁H₁₈ClNO₅S

(Z)-2-(3-Chlorobenzylidene)-8-(1,1-dioxidotetrahydrothiophen-3-yl)-8,9-dihydro-2H-benzofuro[7,6-e][1,3]oxazin-3(7H)-one

CAS 946385-37-1C₂₁H₁₈ClNO₅S

N-(4-Chlorobenzyl)-N-(1,1-dioxidotetrahydrothiophen-3-yl)-2-oxo-2H-chromene-3-carboxamide

CAS 577996-09-9C₂₁H₁₈ClNO₅S

3-(4-Chlorophenyl)-9-(1,1-dioxidotetrahydrothiophen-3-yl)-9,10-dihydrochromeno[8,7-e][1,3]oxazin-2(8H)-one

CAS 951940-27-5C₂₁H₁₈ClNO₅S

Methyl 4-(4-chlorophenyl)-2-[(3,4-dimethoxybenzoyl)amino]thiophene-3-carboxylate

CAS 444998-23-6C₂₁H₁₈ClNO₅S

3-(4-Chlorophenyl)-9-(1,1-dioxidotetrahydrothiophen-3-yl)-9,10-dihydro-4H,8H-chromeno[8,7-e][1,3]oxazin-4-one

CAS 946293-53-4C₂₁H₁₈ClNO₅S

N-(2-Chlorobenzyl)-N-(1,1-dioxidotetrahydrothiophen-3-yl)-4-oxo-4H-chromene-2-carboxamide

CAS 912906-37-7C₂₁H₁₈ClNO₅S

N-(2-Chlorobenzyl)-N-(1,1-dioxidotetrahydrothiophen-3-yl)-2-oxo-2H-chromene-3-carboxamide

CAS 620569-52-0C₂₁H₁₈ClNO₅S

N-(3-Chlorobenzyl)-N-(1,1-dioxidotetrahydrothiophen-3-yl)-4-oxo-4H-chromene-2-carboxamide

CAS 912890-25-6C₂₁H₁₈ClNO₅S

Methyl 2-{[(6-chloro-7-methyl-4-oxo-4H-chromen-2-yl)carbonyl]amino}-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate

CAS 873082-08-7C₂₁H₁₈ClNO₅S

Ethyl [(5E)-5-{2-[(4-chlorobenzyl)oxy]benzylidene}-2,4-dioxo-1,3-thiazolidin-3-yl]acetate

CAS 432539-33-8C₂₁H₁₈ClNO₅S

Ethyl 2-[[[4-(2-chlorophenoxy)phenyl]sulfonyl]amino]benzoate

CAS 606944-49-4C₂₁H₁₈ClNO₅S

Ethyl 2-((2-chlorophenyl)amino)-5-(2-hydroxy-5-methoxybenzylidene)-4-oxo-4,5-dihydrothiophene-3-carboxylate

CAS 1048245-58-4C₂₁H₁₈ClNO₅S

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What is the molar mass of C21H18ClNO5S?

The molar mass of C21H18ClNO5S is 431.89 g/mol, calculated from standard atomic weights for 21 carbon atoms, 18 hydrogen atoms, 1 chlorine atom, 1 nitrogen atom, 5 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 431.0594 Da.

How many compounds have the formula C21H18ClNO5S?

CompoundList lists 19 compounds with the molecular formula C21H18ClNO5S, including 3-[Benzyl(4-methoxyphenyl)sulfamoyl]-4-chlorobenzoic acid, 3-[Benzyl(2-methoxyphenyl)sulfamoyl]-4-chlorobenzoic acid, 5-[Benzyl-(4-methoxy-phenyl)-sulfamoyl]-2-chloro-benzoic 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 C21H18ClNO5S?

C21H18ClNO5S has a degree of unsaturation of 13. 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.