RDD038

Sodium phosphate dibasic

BioReagent, suitable for cell culture, suitable for insect cell culture, ≥99.0%, free-flowing, Redi-Dri^™

• Synonym(s): sec-Sodium phosphate, Disodium hydrogen phosphate, Disodium phosphate, Sodium hydrogenphosphate
• Linear Formula: Na₂HPO₄
• CAS Number: 7558-79-4
• Molecular Weight: 141.96
• UNSPSC Code: 12352200
• NACRES: NA.21
• MDL number: MFCD00003496
• eCl@ss: 38070211

Properties

• Quality Segment: 100
• product line: BioReagent, Redi-Dri^™
• assay: ≥99.0%
• form: powder or crystals
• quality: free-flowing
• technique(s): cell culture | insect: suitable, cell culture | mammalian: suitable
• pH: 8.9-9.2 (25 °C, 50 g/L in water)
• pKa (25 °C): (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
• solubility: water: soluble 100 mg/mL
• application(s): diagnostic assay manufacturing
• SMILES string: [Na+].[Na+].[H]OP([O-])([O-])=O
• InChI: 1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
• InChI key: BNIILDVGGAEEIG-UHFFFAOYSA-L

Description

General description

Sodium phosphate dibasic is a component in many biological buffers used in biochemical, biomedical, and molecular biological research. It is also known as disodium hydrogen phosphate (Na₂HPO₄), it is an inorganic salt that is highly soluble in water. It serves as a versatile buffering agent in research with a pH of 8.9 - 9.2. It is essential for making several phosphate buffers including PBS, utilized for cell culture, immunohistochemistry, Western blot, ELISA, and other applications where a stable pH is critical.

Application

Sodium phosphate dibasic may be used for phosphate buffer and Phosphate Buffered Saline (PBS) that is commonly utilized for cell culture, immunohistochemistry, western blot, and other biochemical applications where a stable pH is crucial. Including protein purification and enzymatic assays.

Features and Benefits

• Qualified for use in cell culture; suitable for insect cell culture
• Redi-Dri^™ packaging controls moisture for hygroscopic chemicals that commonly clump
• Anhydrous powder remains free-flowing and easy to use
• Safer to handle and weigh out for routine use in lab
• Eliminates clumps, maintaining product moisture, quality, and attributes

Other Notes

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Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Safety Information

• Storage Class: 13 - Non Combustible Solids
• flash_point_f: Not applicable
• flash_point_c: Not applicable