Molecular formula

C₂₁H₁₈N₂O₆S

33 compounds have this formula on CompoundList.

Molar mass: 426.44g/mol
Monoisotopic mass: 426.0886Da
Atoms: 48
Elements: 5
Rings plus double bonds: 14

The formula C21H18N2O6S describes a molecule made of 21 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms, 6 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 × 2159.15%
12.011 × 21 = 252.231 g/mol
H Hydrogen × 184.25%
1.008 × 18 = 18.144 g/mol
N Nitrogen × 26.57%
14.007 × 2 = 28.014 g/mol
O Oxygen × 622.51%
15.999 × 6 = 95.994 g/mol
S Sulfur × 17.52%
32.06 × 1 = 32.060 g/mol

Look up another formula

Compounds with the formula C21H18N2O6S

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

Showing 1 to 33 of 33 compounds

Methyl 6-[4-(furan-2-carbonyloxy)phenyl]-8-methyl-4-oxo-3,6-dihydro-2H-pyrimido[2,1-b][1,3]thiazine-7-carboxylate

CAS 381195-67-1C₂₁H₁₈N₂O₆S

(4E)-5-(2,5-Dimethoxyphenyl)-4-[hydroxy(thiophen-2-yl)methylidene]-1-(5-methyl-1,2-oxazol-3-yl)pyrrolidine-2,3-dione

CAS 618873-39-5C₂₁H₁₈N₂O₆S

N-(1-(Furan-2-carbonyl)indolin-6-yl)-2,3-dihydrobenzo[b][1,4]dioxine-6-sulfonamide

CAS 1021210-50-3C₂₁H₁₈N₂O₆S

3,4-Dimethoxy-N-(11-oxo-10,11-dihydrodibenzo[b,f][1,4]oxazepin-2-yl)benzenesulfonamide

CAS 921920-41-4C₂₁H₁₈N₂O₆S

Ethyl 2-[[2-(4-nitrophenoxy)acetyl]amino]-5-phenylthiophene-3-carboxylate

CAS 307536-31-8C₂₁H₁₈N₂O₆S

Methyl 4-(2-(2,4-dioxo-3-(2-oxo-2-phenylethyl)thiazolidin-5-yl)acetamido)benzoate

CAS 871323-67-0C₂₁H₁₈N₂O₆S

Ethyl 4-(4-methoxyphenyl)-2-[(3-nitrobenzoyl)amino]thiophene-3-carboxylate

CAS 332859-74-2C₂₁H₁₈N₂O₆S

5-(3,4-Dimethoxyphenyl)-3-hydroxy-1-(5-methylisoxazol-3-yl)-4-(thiophene-2-carbonyl)-1H-pyrrol-2(5H)-one

CAS 618873-41-9C₂₁H₁₈N₂O₆S

2-[[4-[(4-Methoxyphenyl)sulfamoyl]phenyl]carbamoyl]benzoic acid

CAS 433967-16-9C₂₁H₁₈N₂O₆S

Methyl 2-({3-nitrobenzoyl}amino)-4-(4-methoxyphenyl)-5-methylthiophene-3-carboxylate

CAS 445013-77-4C₂₁H₁₈N₂O₆S

(4E)-5-(3-Ethoxy-4-hydroxyphenyl)-4-[hydroxy(thiophen-2-yl)methylidene]-1-(5-methyl-1,2-oxazol-3-yl)pyrrolidine-2,3-dione

CAS 618873-17-9C₂₁H₁₈N₂O₆S

Methyl 2-({4-nitrobenzoyl}amino)-4-(4-methoxyphenyl)-5-methyl-3-thiophenecarboxylate

CAS 444932-58-5C₂₁H₁₈N₂O₆S

(4E)-5-(2,3-Dimethoxyphenyl)-4-[hydroxy(thiophen-2-yl)methylidene]-1-(5-methyl-1,2-oxazol-3-yl)pyrrolidine-2,3-dione

CAS 618873-37-3C₂₁H₁₈N₂O₆S

N-Bsmoc-L-tryptophan

CAS 197245-27-5C₂₁H₁₈N₂O₆S

Methyl (2-{[(3,5-dimethyl-7-oxo-7H-furo[3,2-g]chromen-6-yl)acetyl]amino}-1,3-thiazol-4-yl)acetate

CAS 1010909-28-0C₂₁H₁₈N₂O₆S

N-(2H-1,3-Benzodioxol-5-yl)-4-(4-methoxybenzenesulfonamido)benzamide

CAS 898430-79-0C₂₁H₁₈N₂O₆S

(E)-4-Oxo-6-((pyrimidin-2-ylthio)methyl)-4H-pyran-3-yl 3-(3,4-dimethoxyphenyl)acrylate

CAS 1321764-24-2C₂₁H₁₈N₂O₆S

10-Methoxy-13-methyl-7-oxo-7H-benzimidazo(2,1-a)benz(de)isoquinolinium methyl sulphate

CAS 27076-17-1C₂₁H₁₈N₂O₆S

Ethyl 4-(4-methoxyphenyl)-2-[(4-nitrobenzoyl)amino]thiophene-3-carboxylate

CAS 372503-55-4C₂₁H₁₈N₂O₆S

Methyl [(5E)-2,4-dioxo-5-{2-[2-oxo-2-(phenylamino)ethoxy]benzylidene}-1,3-thiazolidin-3-yl]acetate

CAS 500135-24-0C₂₁H₁₈N₂O₆S

2-[(5E)-5-[(6-Methoxy-1,3-benzodioxol-5-yl)methylidene]-2,4-dioxo-1,3-thiazolidin-3-yl]-N-(4-methylphenyl)acetamide

CAS 692276-31-6C₂₁H₁₈N₂O₆S

2-[(5Z)-5-(1,3-Benzodioxol-5-ylmethylidene)-2,4-dioxo-1,3-thiazolidin-3-yl]-N-[2-(4-hydroxyphenyl)ethyl]acetamide

CAS 902319-15-7C₂₁H₁₈N₂O₆S

$2,4-Dimethoxy-N-{10-oxo-2-oxa-9-azatricyclo[9.4.0.0^{3,8}]pentadeca-1(11),3(8),4,6,12,14-hexaen-13-yl}benzene-1-sulfonamide chemical structure, C21H18N2O6S, CAS 922137-58-4$

2,4-Dimethoxy-N-{10-oxo-2-oxa-9-azatricyclo[9.4.0.0^{3,8}]pentadeca-1(11),3(8),4,6,12,14-hexaen-13-yl}benzene-1-sulfonamide

CAS 922137-58-4C₂₁H₁₈N₂O₆S

Methyl 2-({[5-(2,3-dihydro-1,4-benzodioxin-6-yl)isoxazol-3-yl]carbonyl}amino)-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxylate

CAS 912896-66-3C₂₁H₁₈N₂O₆S

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What is the molar mass of C21H18N2O6S?

The molar mass of C21H18N2O6S is 426.44 g/mol, calculated from standard atomic weights for 21 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms, 6 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 426.0886 Da.

How many compounds have the formula C21H18N2O6S?

CompoundList lists 33 compounds with the molecular formula C21H18N2O6S, including Methyl 6-[4-(furan-2-carbonyloxy)phenyl]-8-methyl-4-oxo-3,6-dihydro-2H-pyrimido[2,1-b][1,3]thiazine-7-carboxylate, (4E)-5-(2,5-Dimethoxyphenyl)-4-[hydroxy(thiophen-2-yl)methylidene]-1-(5-methyl-1,2-oxazol-3-yl)pyrrolidine-2,3-dione, N-(1-(Furan-2-carbonyl)indolin-6-yl)-2,3-dihydrobenzo[b][1,4]dioxine-6-sulfonamide. 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 C21H18N2O6S?

C21H18N2O6S 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.