:PIPES

PIPES

1,4-piperazine diethanesulfonic acid
piperazine-n,n'-bis (2-ethanesulfonic acid),

Specifications

CAS 5625-37-6
Grade ultra pure
Formula weight 302.4
Formula C8H18N2O6S2
Physical description white powder
Unit Min Max
Assay (Titration) % 99 100
Appearance (White Powder/crystalline) Pass 0 0
Heavy Metals (As Pb) ppm 0 5
Identification (IR) Pass 0 0
Uv Absorbance At 290nm (20% W/w 1N NaOH) nm 0 0.1
Expiration Verification (1 Yr. Minimum) Pass 0 0
Solubility (Clear, Colorless) Pass 0 0

Notes & Applications

biological buffer
pka (25°C): 6.8, effective buffer range pH 6.1 - 7.5
store at 15°C to 30°C
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