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Enduro Electrophoresis System 7x10cm

Item #: ASPCRELCTP22 

1 year warranty

PR1MA Buffers

Kappa is now PR1MA™ - Same great product, new name
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PR1MA™  HEPES, Free Acid [N-(2-Hydroxyethyl) piperazine N'-(2-ethanesulfonic acid)]

Common Name: [N-(2-Hydroxyethyl) piperazine N'-(2-ethanesulfonic acid)]
CAS Number: 7365-45-9
Molecular Weight: 238.3
Chemical Formula: C8H18N2O4S
Solubility: Water
Storage Temperature: Room Temperature



Zwitterionic N-substituted aminosulfonic acid buffer.

  • pka (25°C): 7.5
  • pH Range (Working): 6.8 - 8.2
  • Heavy Metals: <0.001% Max

Research or further manufacturing use only, not for food or drug use.


  • Appearance: White Crystalline Powder
  • Assay (Titration, dried basis): ≥ 99.5 %
  • DNase, RNase, protease: Not Detected
  • Endotoxin (0.2% Solution): ≤ 0.25 EU/ml
  • Heavy Metals (as Pb): ≤ 0.001 %
  • Identification (IR): Pass
  • Iron (Fe): ≤ 0.0005 %
  • Loss on Drying: ≤ 1.0 %
  • pH (5% in water): 5.0 - 6.5
  • pKa @ 20°C: 7.35 - 7.70
  • Residue on Ignition: ≤ 0.1 %
  • Solubility (1M Solution in Water ) : Clear and Colorless Solution
  • Sulfate: ≤ 0.05 %
  • UV Absorbance (1M@260nm): ≤ 0.05
  • UV Absorbance (1M@280nm): ≤ 0.05

PNKAPPA

Chemical
HEPES, Free Acid
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Enduro Electrophoresis System 7x10cm
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