Molecular Formula: C16H20N3NaO4S (or C16H18N3NaO4S, with slight variations in hydrogen atom count due to different preparation methods or sources)
Molecular Weight: 373.4 (or 371.387, depending on the molecular formula used)
Physical Properties
Appearance: White or slightly yellowish powder or crystalline solid
Melting Point: 215 °C
Solubility: Freely soluble in water, sparingly soluble in acetone, and insoluble in ether. The aqueous solution may gradually turn yellow and become turbid at room temperature, with a gradual decrease in potency.
pH Value: pH (100g/l, 25°C): 8.0~10.0
Specific Rotation: +246° to +272° (or +258° to +287°, with slight variations depending on the measurement conditions)
Chemical Properties
Stability: Should be stored in a cool, dry place, away from light and heat. Avoid repeated freezing and thawing.
Antibacterial Activity: Ampicillin sodium is a broad-spectrum penicillin antibiotic with antibacterial activity against a variety of Gram-positive and Gram-negative bacteria. It is particularly effective against bacteria such as Escherichia coli, Proteus vulgaris, Salmonella, and Shigella.
