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You are here:Home » Biochemicals » Biochem-Inflammation » MTSSL (Mts-SL, MTSL, (1-Oxyl-2,2,5,5-tetramethylpyrroline-3- methyl)methanethiosulfonate, Otmpmms)

MTSSL (Mts-SL, MTSL, (1-Oxyl-2,2,5,5-tetramethylpyrroline-3- methyl)methanethiosulfonate,


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Highly reactive, thiol-specific spin-label.
Specific conformational probe of thiol site structure by its minimal rotational freedom and distance from the covalent disulfide linkage to the macromolecule under study.
Used to label cysteine residues in proteins (site-directed labeling, SDS-labeling).
Allows protein structure and protein dynamics determination as well as the study of protein-protein and protein-oligonucleotide interactions.
Catalog #045050
Storage and StabilityShort-term Storage: +4°C
Long-term Storage: -20°C
Stable for at least 2 years after receipt when stored at -20°C.
CAS Number81213-52-7
Molecular FormulaC10H18NO3S2
Molecular Weight264.3
Purity>98% (HPLC)
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
Alternate namesMts-SL, MTSL, (1-Oxyl-2,2,5,5-tetramethylpyrroline-3- methyl)methanethiosulfonate, Otmpmms

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