(2S)-2-azaniumylpentanedioate (2S)-2-ammoniopentanedioate (2S)-2-ammonioglutarate L-glutamate(1-) L-glutamic acid monoanion hydrogen L-glutamate ZINC01482113 CHEBI:29985 (4S)-4-amino-5-hydroxy-5-oxopentanoate (4S)-4-amino-5-hydroxy-5-oxo-pentanoate (4S)-4-amino-5-hydroxy-5-keto-valerate GAMMA-GLUTAMIC ACID GGL