HEPES (2-[4-(2-hydroxyethyl)-1-piperazinyl]ethanesulphonic acid) free acid ≥99%, Ultrapure Bioreagent for liquid chromatography, for molecular biology, J.T.Baker®
Supplier: Avantor
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Warning
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BAKR4018-04EA
215
SGD
BAKR4018-04
HEPES (2-[4-(2-hydroxyethyl)-1-piperazinyl]ethanesulphonic acid) free acid ≥99%, Ultrapure Bioreagent for liquid chromatography, for molecular biology, J.T.Baker®
HEPES (4-(2-Hydroxyethyl)piperazin-1-ylethanesulphonic acid)
Free acid for liquid chromatography and molecular biology buffers. Lot analysis on label.
- Lot analysis on label
Formula:
C₈H₁₈N₂O₄S Melting Pt: 210…215 °C Density: 1,448 g/cm³ (20 °C) Storage Temperature: Ambient |
MDL Number:
MFCD00006158 CAS Number: 7365-45-9 EINECS: 230-907-9 Merck Index: 13,04672 |
Specification Test Results
For Laboratory,Research,or Manufacturing Use | ≥99% |
Assay (C₈H₁₈N₂O₄S) | ≥99 % |
Appearance (fine, white, crystalline powder) | Passes Test |
Sodium (USP Id.) | Passes Test |
DNase Activity (None Detected) | Passes Test |
RNase Activity | Passes Test |
Protease Activity | Passes Test |
Absorbance of a 0.1M Solution (1-cm path vs water) at - 260 nm | ≤0.050 |
Absorbance of a 0.1M Solution (1-cm path vs water) at - 280 nm | ≤0.050 |
pH of 5% Solution at 25°C | 5.0 - 6.5 |
Ash (sulfated) | ≤0.2 % |
Arsenic and Antimony (as As) | ≤0.050 ppm |
Trace Impurities - ACS - Heavy Metals (as Pb) | ≤5 ppm |
Trace Impurities - Iron (Fe) | ≤5 ppm |
pK^a at 20°C, For Information Only | |
QC Supervisor or equivalent to check supplier's COA to ensure proper chemical form. | Passes Test |
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