3-(N-morpholino)propanesulfonic acid
CAS No.: 1132-61-2 Formula: C7H15NO4S
Weight: 209.26300
Synonyms: MOPS; 3-Morpholinopropanesulfonic Acid; 3-Morpholinopropanes; 3-(N-Morpholino)propanesulfonic acid,4-Morpholinepropanesulfonic acid; MOPS ULTRAPUR
MOPS (3-(N-morpholino)propanesulfonic acid) is a buffer introduced by Good et al. in the 1960s. It is a structural analog to MES. Its chemical structure contains a morpholine ring. HEPES is a similar pH buffering compound that contains a piperazine ring. With a pKa of 7.20, MOPS is an excellent buffer for many biological systems at near-neutral pH.