The Cobalt iodide, dihydrate (8CI,9CI), with CAS registry number 13455-29-3, has the systematic name of cobalt(2+) diiodide dihydrate. Besides this, it is also called Cobalt(II) Iodide dihydrate. This chemical is a kind of brownish red crystal. And the chemical formula of this chemical is H₄CoI₂O₂. This chemical can be prepared by Hydrogen iodide and cobaltous carbonate.

Physical properties of Cobalt iodide (CoI₂),dihydrate (8CI,9CI): (1)#H bond acceptors: 2; (2)#H bond donors: 4; (3)#Freely Rotating Bonds: 0.

When you are using this chemical, please be cautious about it as the following:
The Cobalt iodide,dihydrate (8CI,9CI) may cause sensitization by skin contact. And it has possible risk of irreversible effects. When use it, wear suitable protective clothing, gloves and eye/face protection. This material and its container must be disposed of as hazardous waste.

You can still convert the following datas into molecular structure:
(1)SMILES: [Co+2].[I-].[I-].O.O
(2)InChI: InChI=1/Co.2HI.2H2O/h;2*1H;2*1H2/q+2;;;;/p-2
(3)InChIKey: GIJGBKYNIRFTKD-NUQVWONBAK
(4)Std. InChI: InChI=1S/Co.2HI.2H2O/h;2*1H;2*1H2/q+2;;;;/p-2
(5)Std. InChIKey: GIJGBKYNIRFTKD-UHFFFAOYSA-L