Product Overview

Potassium Dihydrogen Orthophosphate Anhydrous 99.5% For Molecular biology (CAS No. 7778-77-0) is the monopotassium salt of phosphoric acid, consisting of potassium and dihydrogen phosphate ions. Also known as potassium phosphate monobasic or monopotassium phosphate, it is an inorganic phosphate reagent whose acid–base properties make it an important component of aqueous phosphate-buffer systems. The dihydrogen phosphate species participates in the phosphate buffering system and can be combined with dibasic phosphate salts to establish controlled pH conditions in biological and biochemical media.

The Molecular biology grade is intended for preparation of biological buffers and reagent systems used in molecular and biochemical procedures where controlled ionic composition is important. Its anhydrous form provides a defined solid starting material for preparing phosphate-buffered solutions, while the high assay supports applications requiring a consistent phosphate reagent. Established molecular-biology uses include phosphate buffer preparation, phosphate-buffered saline systems, nucleic-acid workflows and other biomolecular procedures involving controlled aqueous pH and ionic conditions.

Typical Applications

• Preparation of phosphate buffers for molecular-biology and biochemical procedures.
• Preparation of phosphate-buffered saline and related aqueous biological buffer systems.
• Preparation of buffer solutions used in nucleic-acid isolation and analysis.
• Preparation of biological and biochemical reagent solutions requiring a phosphate buffering system.
• Buffer preparation for protein and biomolecule handling, purification and chromatography.
• Preparation of aqueous media and reagent systems used in cell-biological and biochemical research.
• Laboratory research requiring potassium phosphate as a controlled inorganic phosphate source.

Common Synonyms

• Potassium Dihydrogen Phosphate
• Potassium Phosphate Monobasic
• Monobasic Potassium Phosphate
• Monopotassium Phosphate
• Monopotassium Dihydrogen Phosphate
• Potassium Acid Phosphate
• Potassium Biphosphate
• KDP

Storage Conditions

Store tightly closed in a dry environment and protect the material from unnecessary atmospheric moisture to preserve the anhydrous product form during storage and handling. Maintain clean handling conditions and promptly reseal the container after dispensing to minimise contamination and moisture exchange before preparation of molecular-biology buffer systems.