N-(2-Hydroxyethyl)piperazine-N'-2-ethane sulfonic acid -Na-salt, analytical grade, SERVA

Opis towaru

N-(2-Hydroxyethyl) piperazine-N'-2-ethane sulfonic acid sodium salt (HEPES sodium salt) is a buffering substance for biochemistry and molecular biology.
At biological pH, HEPES is zwitterionic, and is effective as a buffer at pH 6.8 to 8.2 (pKa 20 = 7.55). Thus this Good's buffer is widely used in biological solutions and as a component in cell culture media.

HEPES·Na-salt
C₈H₁₇N₂O₄S·Na

M_r 260.3

CAS No. 75277-39-3 

Assay (titr.): min. 99.0 %
A 1 cm/10 % in water
260 nm: max. 0.15
280 nm: max. 0.1
pH 10 % in water: 9.5 - 11.5

Storage Temperature: +15 °C to +30 °C