If glutamic acid has the formula HC5H8NO4 then what is the formula of sodium glutamate commonly known as MSG or monosodium glutamate?

MSG, 2-aminopentanedioic acid, is C5H8NNaO4 and has a SMILES (simplified molecular input line entry specification) of C(CC(=O)O)C(C(=O)O-)N.[Na+]. A link is provided to the Wikipedia article on MSG.