Formulation: A crystalline solid
Formal Name: 2,5-dihydro-2,2,5,5-tetramethyl-3-[[(methylsulfonyl)thio]methyl]-1H-pyrrol-1-yloxy
Purity: ≥95%
Formula Markup: C10H18NO3S2
Formula Weight: 264,4
Shelf life (days): 730
CAS Number: 81213-52-7
Notes: MTSSL is a paramagnetic nitroxide spin label featuring a methanethiosulfonate group for site-directed spin labeling, particularly through disulfide linkages with cysteine residues on proteins.{26831,26833} When combined with electron paramagnetic resonance spectroscopy, site-directed spin labeling is used to study the structural dynamics of proteins, including membrane proteins.{26831,26832}