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HEPES, Free Acid [N-(2-Hydroxyethyl) piperazine N'-(2-ethanesulfonic acid)], 250 Grams

Price$ 114.25
You Save$ 93.25
  • SKU: H75030-250.0
  • Pack Size: 250 G
Quantity
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Frequently Bought Together

Total price: $ 185.25

This item: HEPES, Free Acid, 250 G $ 114.25

Sucrose, 1 KG $ 34.00

Glycerol, 1 L $ 37.00

[N-(2-Hydroxyethyl) piperazine N'-(2-ethanesulfonic acid)]

7365-45-9

238.3

C8H18N2O4S

Water

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

0.6499 lbs

3.50 x 3.75 x 3.50



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

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