3-morpholinopropane-1-sulfonic acid; 3-(N-Morpholino)propanesulfonic acid;
4-Morpholinepropanesulfonic acid;
3-(N-morpholino)propanesulfonic acid;
3-Morpholinopropanesulfonic acid;
3-N-morpholino propansulfonic acid;
4-Morpholinepropanesulfonic acid

Technical Data

CAS Number: 1132-61-2
Molecular Formula: C7H15NO4S
Molecular Weight: 209.26
Beilstein Registry Number: 1106776
EC Number: 214-478-5

FabriChem Specifications

AppearanceWhite Powder
Solubility (33% in H2O)Clear and Complete
Infrared (IR)Conforms to Known Standard
Assay (Titration, dried basis)99.5% Min.
Pka (25°C)7.0 – 7.4
pH (1% in H2O)3.6 – 4.4
Moisture (LOD)1.0% Max.
Melting Point276.0° - 281.0°C
UV (1M in H2O) A260nm0.05 Max.
UV (1M in H2O) A280nm0.03 Max.

Molecular Structure



MOPS [3-(N-morpholino)propanesulfonic acid] is one of the known buffering agents used for biochemical and biological research. These buffering agents are now collectively referred to as “Good’s Buffers”. Good’s Buffers are important tools used in modern biological laboratories for a variety of their properties, including but not limited to being zwitterionic (aka hybrid or dipolar) compounds.