PR1MA HEPES, Sodium Salt

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PR1MA™  HEPES, Sodium Salt [N-(2-Hydroxyethyl) piperazine-N'-(2-ethanesulfonic acid)]

Common Name: N-(2-Hydroxyethyl)piperazine-N'-(2-ethanesulfonic acid)
CAS Number: 75277-39-3
Molecular Weight: 260.3
Chemical Formula: C₈H₁₇N₂O₄SNa
Solubility: Water
Storage Temperature: Room Temperature

• pKa (20°C): 7.45-7.65
• pH Range: 6.8-8.2

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

• Appearance: White crystalline powder
• Assay (Titration, dried basis): ≥ 98.0 %
• Chloride (Cl): ≤ 0.1 %
• Heavy Metals (as Pb): ≤ 1 ppm
• Loss on Drying @ 105 ^oC, 3hrs: ≤ 2.0 %
• pH (1% aqueous @ 25 ^oC): 9.4 - 11.0
• pKa @ 20°C: 7.45 - 7.65
• Solubility (1M Solution in H₂O): Clear, complete and colorless
• UV Absorbance @ 250nm 1M: ≤ 1.0