[Appearance]: white crystal powder [Content]: ≥96.0%(no water) [Sulphate]: ≤0.2% [Moisture(KF)]: ≤1.0% [Heavy metal]: ≤0.002% [Iodine sorption]: ≤2.0% [Relevant Substance]: Ampicillin≤3.0% [Sulbactam]: ≤1.0% [Solubility]: Easily soluble in dichloromethane, soluble in acetone, diluted acid and diluted base.