69947

Sigma-Aldrich

MOPS

BioUltra, for molecular biology, ≥99.5% (T)

Synonym(s):
4-Morpholinepropanesulfonic acid, 3-(N-Morpholino)propanesulfonic acid
Empirical Formula (Hill Notation):
C7H15NO4S
CAS Number:
Molecular Weight:
209.26
Beilstein/REAXYS Number:
1106776
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.25

Quality Level

grade

for molecular biology

product line

BioUltra

assay

≥99.5% (T)

form

powder or crystals

impurities

DNases, none detected
RNases, none detected
insoluble matter, passes filter test
phosphatases, none detected
proteases, none detected

ign. residue

≤0.1% (as SO4)

loss

≤1% loss on drying, 110 °C

pH

2.5-4.0 (25 °C, 1 M in H2O)

useful pH range

6.5 - 7.9

pKa (25 °C)

7.2

solubility

H2O: 1 M at 20 °C, clear, colorless

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

λ

1 M in H2O

UV absorption

λ: 260 nm Amax: 0.020
λ: 280 nm Amax: 0.015

SMILES string

OS(=O)(=O)CCCN1CCOCC1

InChI

1S/C7H15NO4S/c9-13(10,11)7-1-2-8-3-5-12-6-4-8/h1-7H2,(H,9,10,11)

InChI key

DVLFYONBTKHTER-UHFFFAOYSA-N

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General description

3-(N-Morpholino)propanesulfonic acid or MOPS due to its inert nature is a preferred and widely used buffer in many biochemical studies.

Application

MOPS has been used:
  • as a component of Roswell Park Memorial Institute (RPMI) medium for diluting fungal inoculum
  • as a buffer in capillary-zone electrophoresis to test performance
  • for the dilution of proteins from algal samples

Other Notes

Easily compare specifications for MOPS products with the MOPS specification table.
Component of running buffer in the fractionation of RNA on formaldehyde agarose gels

storage_class_code

13 - Non Combustible Solids

WGK Germany

WGK 1

Flash Point(F)

230.0 °F - closed cup

Flash Point(C)

110 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Separation and Detection of Phosphorylated and Nonphosphorylated BvgA, a Bordetella pertussis Response Regulator, in vivo and in vitro
Chen Q, et al.
Bio-protocol, 3 (2013)
R.C. Ogden et al.
Methods in Enzymology, 152, 82-82 (1987)
Anita V Thomae et al.
Biophysical journal, 89(3), 1802-1811 (2005-06-14)
According to the pH-partition hypothesis the charged species of organic compounds do not contribute to lipid bilayer permeation as they generally show negligible partitioning into n-octanol. With this assumption, membrane permeation is related to the molar fraction of the neutral...
Tohru Tsuchiya et al.
Plant & cell physiology, 44(1), 96-101 (2003-01-29)
Chlorophyllases (Chlases), cloned so far, contain a lipase motif with the active serine residue of the catalytic triad of triglyceride lipases. Inhibitors specific for the catalytic serine residue in serine hydrolases, which include lipases effectively inhibited the activity of the...
Junji Suzuki et al.
Nature communications, 5, 4153-4153 (2014-06-14)
The endoplasmic reticulum (ER) and mitochondria accumulate Ca(2+) within their lumens to regulate numerous cell functions. However, determining the dynamics of intraorganellar Ca(2+) has proven to be difficult. Here we describe a family of genetically encoded Ca(2+) indicators, named calcium-measuring...

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