Aztreonam USP Related Compound A (Open-ring Aztreonam);OPEN RING AZTREONAM (25 MG);SQ 26992;Open Ring Aztreonam (15 mg);(2S,3S)-2-[[(2Z)-2-(2-Amino-4-thiazolyl)-2-[(1-carboxy-1-methylethoxy)imino]acetyl]amino]-3-(sulfoamino)butanoic Acid;Open Ring Aztreonam (10 mg);Open Ring AztreonaM;AztreonaM IMpurity A