Product Description


  • HEPES is a zwintterionic buffer ideally suited for cell culture in a range of 10 to 25mM.
  • It has a buffering range from 6.8 to 8.2.
  • It is also a component of Tris-HEPES buffer for polyacrylamide electrophoresis of proteins.

Physical Specifications:

  • CAS#: 75277-39-3
  • Molecular Formula: C8H17N2O4SNa
  • Molecular Weight: 260.30
  • Purity: Min. 99.0
  • pKa (1X solution @ 25°C): 7.45 - 7.65
  • Heavy Metals: ≤0.0001%
  • Solubility (5%, Water): Pass
  • Appearance: White Crystalline Powder

Molecular Biology Specifications:

  • DNase: None
  • RNase: None
  • Protease: None

Storage: Store at room temperature. Protect from moisture.

Warning: Irritant. Avoid contact with eyes, skin, and mucous membranes. Avoid breathing vapors. Wash thoroughly with water after handling. See Material Safety Data Sheet for additional information.


Please Note: This item is manufactured for laboratory research only and will not be shipped to other types of commercial or residential addresses.


Manufacturer IBI Scientific
Item Ships From Iowa

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