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kwas 2-[4-(2-hydroksyetylo)-1-piperazynylo]etanosulfonowy Free_acid 99, high_purity

Dostawca: VWR Chemicals

Synonim: HEPES free acid, N-(2-Hydroxyethyl)piperazine-N′-(2-ethanesulphonic acid), 4-(2-Hydroxyethyl)piperazin-1-ylethanesulphonic acid, N-2-Hydroxyethylpiperazine-N′-2-ethanesulphonic acid, 2-(4-(2-Hydroxyethyl)piperazin-1-yl)ethanesulphonic acid

0511-1KGEA 4220 PLN
0511-1KG 0511-250G 0511-50G
kwas 2-[4-(2-hydroksyetylo)-1-piperazynylo]etanosulfonowy Free_acid 99, high_purity
kwas 2-[4-(2-hydroksyetylo)-1-piperazynylo]etanosulfonowy

HEPES is a general purpose buffer available for biological research.


Has been used to advantage in tissue culture, oxidative phosphorylation, protein synthesis with cell-free bacterial systems, photophosphorylation and CO₂ fixation. Suitable buffer for TEM studies (Transmission Electron Microscopy) as it does not affect metal substrates. Recommended buffer for glutamate binding assays, preventing binding to non receptor materials.

Formuła: C₈H₁₈N₂O₄S
MW: 238.31 g/mol
Temp. topnienia: 234 °C
Gęstość: 1.448 g/cm³ (20 °C)
Temperatura przechowywania: Temperatura otoczenia
Numer MDL: MFCD00006158
Numer CAS: 7365-45-9
Numer WE (dawny EINECS): 230-907-9
Klasyfikacja Merck : 13,04672
https://digitalassets.avantorsciences.com/adaptivemedia/rendition?id=4cdc09c866676149941b93b2cac8d453175059a2&vid=0b09e5b84ea34a806443c3071fad63e15e4e3433&prid=web&clid=SAPDAM

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Wyniki testów specyfikacyjnych

DNase none detected
Heavy Metals (as Pb) ≤0.0005%
Iron ≤0.0005%
pKa @20 °C 7.45 – 7.65
Protease none detected
Purity (Dry Basis) >99%
Residue on Ignition <0.2%
RNase none detected


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