N- (2-hydroxyethyl) piperazine-n- (2-ethanesulfonic acid)

English name：HEPES；N-（2-Hydroxyethyl）Piperazine-N-2-ethanesulfonic acid；4-(2-Hydroxyethyl)-1-piperazineethanesulfonic acid

Other names: 4- (2-hydroxyethyl) - 1-piperazine ethanesulfonic acid; Hydroxyethyl piperazine ethanesulfonic acid; N- (2-hydroxyethyl) piperazine-n'-2-ethanesulfonic acid; 2-[4- (hydroxyethyl) - 1-piperazinyl] ethanesulfonic acid; N- (2-hydroxyethyl) piperazine-n'- ethane sulfonic acid; 4-hydroxyethyl piperazine ethanesulfonic acid; 2-[4- (2-hydroxyethyl) - 1-piperazine ethane] sulfonic acid

CAS No.: 7365-45-9

C8H18N2O4S=238.30

Grade: br

Content: ≥ 99.0%

PH：6.8～8.2

Heavy metals: ≤ 0.0005%

Chloride: ≤ 0.05%

Sulfate: ≤ 0.005%

Melting point: 234 ~ 238 ℃

Physicochemical properties: white crystalline powder. pKa7.5(25℃）。 One of the buffers of cool's series. Sexual stability. Soluble in water (2.25mol/l, 0 ℃). Melting point 210 ℃. UV absorbance a (5%/1cm, 250nm, water) <0.05

Purpose: biochemical research. Prepare biochemical buffer

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