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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%