StockOptions CHES 08, pH 9.3, 185 ml

– 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/uL)

HR2-256-**
** = Refers to the reagent number in the kit.
For example, reagent number 1 = HR2-256-01

Each StockOptions CHES buffer titrated using Sodium hydroxide at 25 degrees Celsius.

CHES
Synonym: 2-(Cyclohexylamino)ethanesulfonic acid
C8H17NO3S
Mr 207.29
CAS No [103-47-9]
EC No 203-115-6
pKa = 9.3
=99.0% (titration)

chloride (Cl-): =0.05%
sulfate (SO42-): =0.05%
Phosphorus (P) =0.0005%
Al: =0.0005%
Ca: =0.001%
Cu: =0.0005%
Fe: =0.0005%
K: =0.005%
Mg: =0.0005%
NH4+: =0.05%
Na: =0.01%
Pb: =0.001%
Zn: =0.0005%

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