The Sulfurous acid,disodium salt, heptahydrate (9CI), with the CAS registry number 10102-15-5, is also known as Sodium sulfite hydrate. It belongs to the product category of Refined & Fuming Sulfuric Acid(Oleum). This chemical's molecular formula is H₁₄Na₂O₁₀S and molecular weight is 252.15. What's more, its IUPAC name is called Disodium sulfite heptahydrate. It should be stored in a cool, dry place. This chemical can be prepared by Na₂CO₃·10H₂O with SO₂. This reaction needs solvent H₂O and crystallization. It is used as reducing agent, antiseptic, development protectant.

Physical properties about Sulfurous acid,disodium salt, heptahydrate (9CI) are: (1)ACD/LogP: -1.59; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -6.06; (4)ACD/LogD (pH 7.4): -6.09; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)#H bond acceptors: 3; (8)#H bond donors: 2; (9)#Freely Rotating Bonds: 0; (10)Polar Surface Area: 76.74 Å².

You can still convert the following datas into molecular structure:
(1) SMILES: [Na+].[Na+].[O-]S([O-])=O.O.O.O.O.O.O.O
(2) InChI: InChI=1S/2Na.H2O3S.7H2O/c;;1-4(2)3;;;;;;;/h;;(H2,1,2,3);7*1H2/q2*+1;;;;;;;;/p-2
(3) InChIKey: WMJRPJZQQSSDBU-UHFFFAOYSA-L

The toxicity data is as follows: