HEPES-2-[4-(2-Hydroxyethyl)-1-piperazinyl]-ethanesulfonic acid free acid ≥99% (by titrimetric analysis on dry substance), ULTROL®, Calbiochem®, Millipore®
Supplier: EMD MILLIPORE (BIOSCIENCES)
Ratings:
(No Reviews)
Total Ratings: 0
Avg. Ratings: 0.0 out of 5
M-Clarity™ quality level = MQ100
391338-25GM
391338-100GM
391338-1KG
391338-500GM
391338-5KG
80058-232EA
99.88
USD
80058-232
80058-228
80058-230
80058-234
80058-236
HEPES-2-[4-(2-Hydroxyethyl)-1-piperazinyl]-ethanesulfonic acid free acid ≥99% (by titrimetric analysis on dry substance), ULTROL®, Calbiochem®, Millipore®
HEPES (4-(2-Hydroxyethyl)piperazin-1-ylethanesulphonic acid)
A zwitterionic N-substituted aminosulfonic acid buffer. HEPES has its maximum buffering capacity very near the pH of mammalian tissue fluids (pKa of 7.31 at 37°C). Exhibits no metal binding and has a small temperature dependent ΔpKa of -0.014/°C.
- Maximum buffering capacity
- Useful in the pH 6.8 to 8.2 range
- pKa (25 °C) 7.5
Absorbance (1.0 M, H₂O, 260 nm):≤0.05
Absorbance (1.0 M, H₂O, 280 nm): ≤0.04
Caution: Storage condition: OK to freeze
Formula:
C₈H₁₈N₂O₄S Storage Temperature: Ambient |
MDL Number:
MFCD00006158 CAS Number: 7365-45-9 |
Specification Test Results
Assay | ≥99% dry basis (titration) |
Form | Crystalline powder |
Chloride (Cl-) | ≤0.01% |
Sulfate (SO42-) | ≤0.05% |
Color | White |
Learn more
About VWR
Avantor is a vertically integrated, global supplier of discovery-to-delivery solutions for...