Chemicals & Small Molecules

SMPH Crosslinker is a non-cleavable, water soluble crosslinker containing a maleimide and NHS ester group. The maleimide is able to react with thiol groups between pH 6.5 to 7.5 to form thiolester bonds. NHS ester groups are reactive toward primary amines. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

DSS Crosslinker is a membrane permeable, noncleavable crosslinker. The NHS ester groups are reactive toward primary amines. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

DSG Crosslinker is a noncleavable crosslinker which is used in intracellular crosslinking due to its membrane permeability. DSG Crosslinkers contain two terminal NHS ester groups which are reactive toward primary amines. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Desthiobiotin is a single-ring, sulfur-free analog of biotin that binds to streptavidin with nearly equal specificity but less affinity than biotin (Kd = 1011 vs. 1015M, respectively). Consequently, desthiobiotinylated proteins can be eluted readily and specifically from streptavidin affinity resin using mild conditions based on competitive displacement with free biotin. For pull-down experiments with biological samples, this soft-release characteristic of desthiobiotin also helps to minimize co-purification of endogenous biotinylated molecules, which remain bound to streptavidin upon elution of the target protein complexes with free biotin. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

TAMRA-PEG4-Alkyne is a TAMRA red-fluorescent dye linker, with excitation/emission maximum 553/575 nm. The alkyne group enables Click Chemistry with azide compounds. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

BDP FL acid is a green-fluorescent free carboxylic acid linker of BDP FL, which is a dye for fluorescein (FAM) channel. BDP FL acid can be used as a non-reactive control for reference and calibration as well as conjugation after the activation with carbodiimides. This dye has several characteristics that make it potentially superior in some applications, including high extinction coefficient, high fluorescence quantum yield, narrow emission bandwidth, red shift in fluorescence emission at high dye concentrations, relatively long excited-state lifetime, etc. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Pyrene -PEG5-alcohol is a pyrene labeled PEG linker containing an hydroxyl group, which enables further derivatized or replaced with other reactive functional groups. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Pyrene-PEG5-propargyl is a pyrene labeled PEG linker containing an propargyl group, which enables Click Chemistry labeling. The hydrophilic PEG linker can increase water solubility and this reagent will be ideal for antibody, protein or probe conjugation. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Pyrene-PEG3-azide is a pyrene labeled PEG linker containing an azide group, which enables Click Chemistry labeling with any alkyne-bearing molecules and thus turns any molecule into pyrene-bearing probe. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.