MTT

- Overview
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    Background
    
    IC50: N/A
    MTT (3-(4,5-Dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide) is a reagent used in the measurement of in vitro cell proliferation.
    Tetrazolium salts have been the most widely used tools in cell biology for deternining the metabolic activity of cells ranging from microbial origin to mammalian. Fractionation studies in mammalian cells indicate that NADH, the reduced pyridine nucleotide cofactor, is responsible for most MTT reduction, which is further supported by studies with whole cells.
    In vitro: It has been found that MTT reduction was associated not only with mitochondria, but also with the cytoplasm and nonmitochondrial membranes including endosome/lysosome compartment and plasma membrane. The net positive charge on MTT appears to be the predominant factor involved in their cellular uptake through the potential of plasma membrane. However, the second generation tetrazolium dyes (XTT, WST-1 and to some extent, MTS) that form water-soluble formazans and require an intermediate electron acceptor for reduction, are characterised by a net negative charge and therefore are largely cell-impermeable [1].
    In vivo: MTT currently is only used for in vitro cell proliferation determination and there is no in vivo study reported.
    Clinical trial: N/A
    
    Reference:[1] Berridge MV,Herst PM,Tan AS. Tetrazolium dyes as tools in cell biology: new insights into their cellular reduction. Biotechnol Annu Rev.2005;11:127-52.
- Properties
  - Categories
    
    reagent used in the measurement of in vitro cell proliferation
    
    Alternative Name
    
    3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazol-3-ium bromide
    
    CAS Number
    
    298-93-1
    
    Molecular Formula
    
    C18H16N5SBr
    
    Molecular Weight
    
    414.32
    
    Purity
    
    98.00%
    
    Solubility
    
    ≥41.4 mg/mL in DMSO; ≥18.63 mg/mL in EtOH; ≥2.5 mg/mL in H2O with ultrasonic
    
    Storage
    
    Store at -20°C
    
    SMILES
    
    CC1=C(C)N=C([N+]2=NC(C3=CC=CC=C3)=NN2C4=CC=CC=C4)S1.[Br-]
    
    * For Research Use Only
- Reference
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