Wikipedia:  

MES

MES; 4-Morpholineethanesulfonic acid; 2-(N-Morpholino)ethanesulfonic acid; 2-(4-Morpholino)ethanesulfonic acid
Molecular Formula
C6 H13 N O4 S
Natural Isotopic Abundance Mass
195.23672
Mono-Isotopic Molecular Masses
C12N14:   195.0565286009
C13N14:   201.0766576277
C12N15:   196.0535634941
C13N15:   202.0736925209
MES image
MES
InCHi String:
InChI=1S/C6H13NO4S/c8-12(9,10)6-3-7-1-4-11-5-2-7/h1-6H2,(H,8,9,10)

canonical and isomeric SMILES:
C1COCCN1CCS(=O)(=O)O


PUBCHEM iupac NAME: PUBCHEM iupac SYSTEMATIC NAME
2-morpholin-4-ylethanesulfonic acid

PUBCHEM iupac TRADITIONAL NAME: PUBCHEM iupac OPENEYE NAME
2-morpholinoethanesulfonic acid

PUBCHEM iupac CAS NAME
2-(4-morpholinyl)ethanesulfonic acid



PubChem Substance (SID):   113284768   10380057   24896867
PubChem Compound (CID):   78165
KEGG: Compound ID   n/a
CAS Registry IDs:   n/a
PDB Chemical Component   MES
Miscellaneous Databases and IDs:   MDL MFCD00006181   CAS 4432-31-9   MMCD cq_14284   Sigma-Aldrich M3671_SIGMA   NIST 791959329

Reference data were obtained primarily from the PubChem database.

Three dimensional molecular rendering uses Jmol.