5-Oxo-L-proline, compound with L-arginine (1:1) 56265-06-6 Adiuvant Arginina pidolato [Spanish] Arginine PCA Arginine pidolate Arginine pyroglutamate EINECS 260-081-5 G-278 L-Arginine compd. with 5-oxo-L-proline (1:1) L-Proline, 5-oxo-, compd. with L-arginine (1:1) Proline, 5-oxo-, L-, compd. with L-arginine (1:1)