Molecular formula

C₁₈H₁₈N₂O₇S

26 compounds have this formula on CompoundList.

Molar mass: 406.41g/mol
Monoisotopic mass: 406.0835Da
Atoms: 46
Elements: 5
Rings plus double bonds: 11

The formula C18H18N2O7S describes a molecule made of 18 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms, 7 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 × 1853.20%
12.011 × 18 = 216.198 g/mol
H Hydrogen × 184.46%
1.008 × 18 = 18.144 g/mol
N Nitrogen × 26.89%
14.007 × 2 = 28.014 g/mol
O Oxygen × 727.56%
15.999 × 7 = 111.993 g/mol
S Sulfur × 17.89%
32.06 × 1 = 32.060 g/mol

Look up another formula

Compounds with the formula C18H18N2O7S

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

Showing 1 to 26 of 26 compounds

8-Hydroxyquinoline sulfate monohydrate

CAS 207386-91-2C₁₈H₁₈N₂O₇S

Dimethyl 5-({[4-(acetylamino)phenyl]sulfonyl}amino)isophthalate

CAS 346696-87-5C₁₈H₁₈N₂O₇S

(6R,7R)-3-[(Acetyloxy)methyl]-7-[[(2R)-2-hydroxy-2-phenylacetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

CAS 51818-85-0C₁₈H₁₈N₂O₇S

(6R,7R)-3-(Acetyloxymethyl)-8-oxo-7-[(2-phenoxyacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

CAS 10390-44-0C₁₈H₁₈N₂O₇S

Thormaehlen positive compound B

CAS 98125-71-4C₁₈H₁₈N₂O₇S

(6R,7R)-3-(Acetyloxymethyl)-7-[(2-hydroxy-2-phenylacetyl)amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

C₁₈H₁₈N₂O₇S

Diethyl 3-methyl-5-[(3-nitrobenzoyl)amino]thiophene-2,4-dicarboxylate

CAS 312944-57-3C₁₈H₁₈N₂O₇S

2-O-Methyl 4-O-propan-2-yl 3-methyl-5-[(3-nitrobenzoyl)amino]thiophene-2,4-dicarboxylate

CAS 444998-36-1C₁₈H₁₈N₂O₇S

4-Ethyl 2-methyl 3-methyl-5-{[(4-nitrophenyl)acetyl]amino}thiophene-2,4-dicarboxylate

CAS 445000-52-2C₁₈H₁₈N₂O₇S

2-Methyl 4-propyl 5-({2-nitrobenzoyl}amino)-3-methyl-2,4-thiophenedicarboxylate

CAS 445001-40-1C₁₈H₁₈N₂O₇S

Ethyl 5-acetyl-2-{[(4-methoxy-3-nitrophenyl)carbonyl]amino}-4-methylthiophene-3-carboxylate

CAS 774587-51-8C₁₈H₁₈N₂O₇S

3-Methoxy-4-(2-nitro-4-pyrrolidin-1-ylsulfonylphenoxy)benzaldehyde

CAS 571929-63-0C₁₈H₁₈N₂O₇S

4,5-Dimethoxy-2-({[(4-nitrobenzyl)sulfanyl]acetyl}amino)benzoic acid

CAS 831232-31-6C₁₈H₁₈N₂O₇S

N-[2-(1,3-Benzodioxol-5-ylmethylsulfamoyl)ethyl]-1,3-benzodioxole-5-carboxamide

CAS 899968-42-4C₁₈H₁₈N₂O₇S

(6R-(6alpha,7beta(R*)))-3-(Acetoxymethyl)-7-(hydroxyphenylacetamido)-8-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid

CAS 27910-26-5C₁₈H₁₈N₂O₇S

2-(1,1-Dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)-N-(3,4,5-trimethoxyphenyl)acetamide

CAS 879856-58-3C₁₈H₁₈N₂O₇S

Methyl (4-(N-(2-(furan-2-yl)-2-(furan-3-yl)-2-hydroxyethyl)sulfamoyl)phenyl)carbamate

CAS 2034329-76-3C₁₈H₁₈N₂O₇S

2-(4-(N-(2-(Furan-2-yl)-2-(furan-3-yl)-2-hydroxyethyl)sulfamoyl)phenoxy)acetamide

CAS 2034329-83-2C₁₈H₁₈N₂O₇S

N-(2-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-2-hydroxyethyl)-3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-5-sulfonamide

CAS 2034256-87-4C₁₈H₁₈N₂O₇S

Methyl 2-[2-(3,4-dimethoxyphenyl)-1,1,3-trioxo-1lambda6,2,4-benzothiadiazin-4-yl]acetate

CAS 2549046-23-1C₁₈H₁₈N₂O₇S

N-(1,3-Benzodioxol-5-yl)-2-[2,3-dihydro-1,4-benzodioxin-6-yl(methylsulfonyl)amino]acetamide

CAS 693828-49-8C₁₈H₁₈N₂O₇S

Methyl N-{4-[(2-{[2,2'-bifuran]-5-yl}-2-hydroxyethyl)sulfamoyl]phenyl}carbamate

CAS 2320544-81-6C₁₈H₁₈N₂O₇S

5-[(2-{[2,2'-Bifuran]-5-yl}-2-hydroxyethyl)sulfamoyl]-2-methoxybenzamide

CAS 2320930-80-9C₁₈H₁₈N₂O₇S

Iguratimod impurity 21

CAS 544482-14-6C₁₈H₁₈N₂O₇S

Frequently asked questions

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What is the molar mass of C18H18N2O7S?

The molar mass of C18H18N2O7S is 406.41 g/mol, calculated from standard atomic weights for 18 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms, 7 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 406.0835 Da.

How many compounds have the formula C18H18N2O7S?

CompoundList lists 26 compounds with the molecular formula C18H18N2O7S, including 8-Hydroxyquinoline sulfate monohydrate, Dimethyl 5-({[4-(acetylamino)phenyl]sulfonyl}amino)isophthalate, (6R,7R)-3-[(Acetyloxy)methyl]-7-[[(2R)-2-hydroxy-2-phenylacetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic 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 C18H18N2O7S?

C18H18N2O7S has a degree of unsaturation of 11. 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.