Fluorescein Methotrexate, Triammonium Salt
Fluorescein methotrexate is useful for studying anti-metabolite resistance and spontaneous gene amplification. The dye is actively taken up by cells and binds to dihydrofolate reductase (DHFR) quantitatively.
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Tetrodotoxin (TTX) reversibly blocks excitable sodium channels and has been a widely used tool for studies of excitable membranes of nerve, skeletal muscle, and cardiac muscle cells. Biotium offers high quality tetrodotoxin at a competitive price.
α-Bungarotoxin, CF® Dye and Other Conjugates
Conjugates of α-Bungarotoxin labeled with a selection of our CF® dyes and other labels. Labeled α-bungarotoxin conjugates can be used for staining nicotinic acetylcholine receptors at neuromuscular junctions in tissue sections.
Cholera Toxin Subunit B CF® Dye Conjugates
Cholera toxin B subunit is used for tract-tracing in neurological research, targeting GM1 ganglioside binding and retrograde transport. CF® dyes offer exceptional brightness and photostability.
Phalloidin conjugates are actin filament stains for fixed and permeabilized cells. CF® dye phalloidin conjugates consist of the mushroom toxin phalloidin labeled with our superior bright and photostable CF® fluorescent dyes.
Nerve Terminal Staining Kits
Nerve Terminal Staining Kits contain Biotium's nerve terminal dyes and accessories for washing away or quenching extracellular dye fluorescence.