HEPES sodium
Synonyms: HEPES sodium salt, or 4-(2-hydroxyethyl)piperazine-1-ethanesulfonic acid sodium salt, or N-(2-hydroxyethyl)piperazine-N′-(2-ethanesulfonic acid) sodium saltC8H17N2NaO4SMr 260.29CAS [75277-39-3]EC Number 278-169-7MDL Number MFCD00036463PubChem Substance ID 24895780pKa 7.5 at 25°CUseful pH Range of HEPES sodium: 6.6 - 8.2
HR2-733 is titrated to pH 7.5 using HClHR2-733 measured Conductivity range: 41.7 - 43.4 mS/cm at 25°CHR2-733 measured Refractive Index range: 1.37577 - 1.37766 at 20°C
HR2-577 is the free base of HEPES sodium and is to be titrated to the desired pH using HCl HR2-577 measured pH Range: 10.2 - 12.1 at 25°C HR2-577 measured Conductivity range: 25.9 - 27.2 mS/cm at 25°C HR2-577 measured Refractive Index range: 1.37097 - 1.37298 at 20°C
HR2-931-01 - 1.0 M HEPES sodium pH 6.8 is a Custom Shop reagent and is used to reproduce and optimize Crystallization Reagents for use with the Silver Bullets kit.
