The Manganese triacetate dihydrate, with the cas registry number 19513-05-4, has the systematic name of manganese(3+) acetate hydrate (1:3:2). And its product categories are various, including Manganese; Micro/Nanoelectronics and Solution Deposition Precursors. It is a kind of hygroscopic chemical and  its molecular formula is C₆H₉MnO₆^.2(H₂O).

The characteristics of this chemical are as followings: (1)#H bond acceptors: 8; (2)#H bond donors: 7; (3)#Freely Rotating Bonds: 0; (4)Polar Surface Area: 120.39 Å².

You should be cautious while dealing with this chemical. It irritates to eyes, respiratory system and skin. What's more, it may cause harm to unborn child and possible risk of impaired fertility. Therefore, you had better take the following instructions: Wear suitable gloves and eye/face protection, and if in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice. 
 
Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: [Mn+3].O.O.O=C([O-])C.[O-]C(C)=O.[O-]C(C)=O
(2)InChI: InChI=1/3C2H4O2.Mn.2H2O/c3*1-2(3)4;;;/h3*1H3,(H,3,4);;2*1H2/q;;;+3;;/p-3
(3)InChIKey: ONJSLAKTVIZUQS-DFZHHIFOAT