Products > Optimization Screens > StockOptions Buffer Kits > StockOptions MOPS Buffer Kit

StockOptions MOPS Buffer Kit


  • Focused, titrated buffer stocks for crystal screening, optimization & production


  • pH 6.5 to 7.9 in 0.1 pH unit increments (15 reagents)
  • 1.0 M concentrated stocks
  • MOPS pKa 7.2


StockOptions MOPS buffer kit is a preformulated, sterile filtered set of titrated buffer stocks. The StockOptions buffer stock reagents are supplied as 1.0 M stock solutions in 10 milliliter volumes. Each StockOptions MOPS buffer reagent is carefully titrated using Sodium hydroxide. StockOptions MOPS is comprised of 15 unique reagents covering the pH range of 6.5 to 7.9 in 0.1 pH unit increments.

Synonyms: 3-(N-Morpholino)propanesulfonic acid, 4-Morpholinepropanesulfonic acid
Mr 209.28
CAS Number [1132-61-2]
EC Number 214-478-5
RTECS QE9104530
Beilstein Registry Number 1106776
MDL Number MFCD00006183
PubChem Substance ID 24896626

Purity ≥99.5% (T)
DNases, none detected
RNases, none detected
Insoluble matter, passes filter test
Phosphatases, none detected
Proteases, none detected
Ignition Residue <0.1% (as SO4)
Loss <1% loss on drying, 110 °C
Useful pH range 6.5 - 7.9
pKa (25 °C) 7.2

Anion traces
chloride (Cl-): <50 mg/kg
sulfate (SO42-): <50 mg/kg

Cation traces
Al: <5 mg/kg
As: <0.1 mg/kg
Ba: <5 mg/kg
Bi: <5 mg/kg
Ca: <10 mg/kg
Cd: <5 mg/kg
Co: <5 mg/kg
Cr: <5 mg/kg
Cu: <5 mg/kg
Fe: <5 mg/kg
K: <50 mg/kg
Li: <5 mg/kg
Mg: <5 mg/kg
Mn: <5 mg/kg
Mo: <5 mg/kg
Na: <50 mg/kg
Ni: <5 mg/kg
Pb: <5 mg/kg
Sr: <5 mg/kg
Zn: <5 mg/kg




StockOptions MOPS


pH 6.5 to 7.9 in 0.1 pH unit increments



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