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You are here:Home » Biochemicals » Biochem-Maleimide, MTS & Sulfhydryl » 3-(Triethylammonium)propyl Methanethiosulfonate Bromide (MTS-PTrEA)

3-(Triethylammonium)propyl Methanethiosulfonate Bromide (MTS-PTrEA)


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A water soluble analogue of the charged MTS reagent MTSET. Charged MTS reagents have been used successfully with SCAM (substituted cysteine accessibility method) to probe the topology and function of a number of ligand-gated ion channels and transporters.
Catalog #T8415-12
Source Synthetic
Melting Point 149-151°C
Solubility DMSO, Methanol
Atmosphere Inert gas
Method for Determining Identity Proton NMR (DMSO-d6) Spectroscopic and Mass Spectrometric analysis
TLC Conditions SiO2; Dichloromethane:Methanol = 4:1; Visualized with AMCS and KMnO4; Single spot; Rf=0.25
Bromide Content23%
Storage and StabilityMay be stored at RT for short-term only. Long-term storage is recommended at -20°C. For maximum recovery of product, centrifuge the original vial prior to removing the cap. Hygroscopic. Store under inert atmosphere.
CAS Number219789-15-8
Molecular FormulaC10H24BrNO2S2
Molecular Weight334.3
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. Toxicity and Hazards: All products should be handled by qualified personnel only, trained in laboratory procedures.
Alternate namesMTS-PTrEA; N,N,N-Triethyl-3-[(methylsulfonyl)thio]-1-propanaminium Bromide

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