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SML3037

Sigma-Aldrich

MTSSL

≥98% (HPLC)

Synonym(s):

(1-Oxyl-2,2,5,5-tetramethyl-3-pyrroline-3-methyl)methanethiosulfonate, 1H-Pyrrol-1-yloxy, 2,5-dihydro-2,2,5,5-tetramethyl-3-[[(methylsulfonyl)thio]methyl]-, 2,5-Dihydro-2,2,5,5-tetramethyl-3-[[(methylsulfonyl)thio]methyl]-1H-pyrrol-1-yloxy, MTS, MTS (spin label), MTSL

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About This Item

Empirical Formula (Hill Notation):
C10H18NO3S2
CAS Number:
81213-52-7
Molecular Weight:
264.38
MDL number:
MFCD00797622
UNSPSC Code:
12352200
NACRES:
NA.77

Quality Level

100

Assay

≥98% (HPLC)

form

powder

storage condition

protect from light

color

white to beige

solubility

DMSO: 2 mg/mL, clear

storage temp.

−20°C

SMILES string

[O]N1C(C)(C)C=C(C1(C)C)CSS(=O)(C)=O

InChI

1S/C10H18NO3S2/c1-9(2)6-8(7-15-16(5,13)14)10(3,4)11(9)12/h6H,7H2,1-5H3

InChI key

BLSCGBLQCTWVPO-UHFFFAOYSA-N

Biochem/physiol Actions

MTSSL is a cysteine-specific, flexible disulfide bond forming paramagnetic nitroxide spin label probe. MTSSL is reported to be useful for investigating structural and conformational dynamics of membrane proteins and protein aggregation.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Thomas H Edwards et al.
Journal of magnetic resonance (San Diego, Calif. : 1997), 288, 58-68 (2018-02-08)
Tikhonov regularization is the most commonly used method for extracting distance distributions from experimental double electron-electron resonance (DEER) spectroscopy data. This method requires the selection of a regularization parameter, α, and a regularization operator, L. We analyze the performance of
Alise R Muok et al.
Applied magnetic resonance, 49(12), 1385-1395 (2019-01-29)
Site-directed spin labeling of proteins by chemical modification of engineered cysteine residues with the molecule MTSSL (1-Oxyl-2,2,5,5-tetramethylpyrroline-3-methyl methanethiosulfonate) has been an invaluable tool for conducting double electron electron resonance (DEER) spectroscopy experiments. However, this method is generally limited to recombinant
Marilena Di Valentin et al.
Biochimica et biophysica acta, 1857(12), 1909-1916 (2016-10-26)
Triplet-triplet energy transfer from chlorophylls to carotenoids is the mechanism underlying the photoprotective role played by carotenoids in many light harvesting complexes, during photosynthesis. The peridinin-chlorophyll-a protein (PCP) is a water-soluble light harvesting protein of the dinoflagellate Amphidinium carterae, employing

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