HEPES, Sodium Salt, 250 G

pKa (20°C): 7.45-7.65pH Range: 6.8-8.2
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
Storage Conditions: Room Temperature
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: 3.0 %
pH (1% aqueous @ 25 oC): 9.4 - 11.0
pKa @ 20C: 7.45 - 7.65
Solubility (1M Solution in H2O): Clear, complete and colorless
UV Absorbance @ 250nm 1M: 1.0
BSE/TSE Free: BSE/TSE Free
Country of Origin: Report
Shipping Weight: 0.25 lbs
Shipping Dimensions: 3.50 x 3.75 x 3.50
Research or further manufacturing use only, not for food or drug use.