Sodium Phosphate Monobasic Dihydrate

Sodium Phosphate Monobasic Dihydrate USP 25 kg bag

• Commercial Name: Sodium Dihydrogen Phosphate Dihydrate
• Chemical Formula: NaH ₂ PO ₄ · 2H ₂ O
• Molecular Weight :  156.1 g/mol
• CAS Number: 13472-35-0
• Appearance :  White crystalline powder or colorless crystals

Description:

Sodium Phosphate Monobasic Dihydrate is a high-purity inorganic phosphate salt with an assay of 98.0–100.5% on a dry basis. It is produced under GMP conditions and fully conforms to the USP (United States Pharmacopeia) monograph, making it a reliable excipient for pharmaceutical manufacturing. As a water-soluble, mildly acidic salt, it is primarily employed as a buffering agent in pharmaceutical formulations, particularly in parenteral (injectable) and ophthalmic preparations where precise pH control is critical. Its high solubility, chemical stability, and regulatory compliance ensure consistent performance across demanding pharmaceutical applications .

Typical Applications

• pH buffering in injectable and ophthalmic pharmaceutical formulations 
• Component of phosphate buffer saline (PBS) solutions 
• Nutrient source in cell culture and fermentation media 
• Sequestrant and emulsifier in food processing 
• Laboratory reagent in analytical and biochemical applications

Key Features

• High purity (98.0–100.5% on dry basis) 
• USP-compliant, pharma-grade 
• Produced under GMP conditions 
• Excellent water solubility 
• Controlled loss on drying (18.0–26.5%) 
• Suitable for parenteral and ophthalmic formulations

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