ChemCalc
You entered: C10H5NNa2O8S2 . xH2O
The formula is: C10H5NNa2O8S2.nH2O
The compound seems to be a salt or a hydrate.
The mass of C10H5NNa2O8S2.nH2O is not defined
Mass of C10H5NNa2O8S2: 377.25114
Mass of H2O: 18.01528
Isotopic distribution