StockOptions Sodium HEPES 05 pH 7.2, 185 ml

– 1.0 M concentrated stocks
– 0.1 unit increments for fine tuning pH
– Available in pH 6.8 to 8.2
– 185 ml volume
– Sterile filtered
– Formulated in Type 1+ ultrapure water: 18.2 megaohm-cm resistivity at 25°C, < 5 ppb Total Organic Carbon, bacteria free (<1 Bacteria (CFU/ml)), pyrogen free (<0.03 Endotoxin (EU/ml)), RNase-free (< 0.01 ng/mL) and DNase-free (< 4 pg/µL)

HR2-931-**
** Refers to the reagent number in the kit.
For example, reagent number 1 = HR2-931-01

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 salt
C8H17N2O4SNa
Mr 260.29
CAS [75277-39-3]
EC Number 278-169-7
MDL Number MFCD00036463
PubChem Substance ID 24895780
pKa 7.4-7.7 at 25°C
Useful pH Range of HEPES sodium: 6.6-8.5


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