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