Question: Please describe this drug.
 The Compound has the SMILES O.O.O.O.O.O.O.O.O.[Na+].[Na+].[S-2].
Answer: Sodium sulfide nonahydrate is a hydrate with formula Na2S.9H2O. It contains a sodium sulfide (anhydrous).
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
O.O.O.O.O.O.O.O.O.[Na+].[Na+].[S-2]
O.O.O.O.O.O.O.O.O.[Na+].[Na+].[S-2]
disodium;sulfide;nonahydrate
Please describe this drug.