Labelling

R-Phycoerythrin Labeling Kit-SH is used for the preparation of R-Phycoerythrin-labeled antibody for immunostaining and cellular proteins for tracing.

ICG Labeling Kit-NH₂ is used for the preparation of ICG (Indocyanine green)-labeled antibody for near-infrared fluorescence imaging.

Biotin Labeling Kit-NH₂ is primarily used for the preparation of biotin-labeled antibody for enzyme immunoassay (EIA). NH₂-Reactive Biotin, a component of this kit, has a succinimidyl ester group, and can easily make a covalent bond with an amino group of the target protein or other macromolecules without any activation process.

Ab-10 Rapid Biotin Labeling Kit is used for the rapid and easy labeling of biotin to 10 ug antibody.

Cy7.5 NHS ester is a water soluble fluorescent dye with a terminal NHS ester group. Cy7.5 NHS ester is a near-infrared (NIR) dye known for its long-wave emission. It serves as an amine-reactive derivative, ideal for labeling biomolecules like proteins and peptides for in vivo NIR imaging.

Ald-Ph-PEG8-t-butyl ester is a PEG linker containing a benzaldehyde and a t-butyl ester. The aldehyde group is a versatile electrophile that is reactive towards amines, hydroxylamines, and hydrazines while the t-butyl ester can be removed to reveal a carboxylic acid that can react with alcohols or amines.

BP Fluor 647 NHS Ester is a very popular amine-reactive fluorescent dye which can be used to label antibody, protein, and other biomolecules. BP Fluor 647 is a red fluorescent dye with excitation and emission maxima at 648 nm and 671 nm respectively.

DNP-PEG12-azide is a heterobifunctional PEG linker featuring a dinitrophenyl and a primary amine. Dinitrophenyl is an excellent FRET quencher pair with tryptophan or tyrosine, while the azide can be used in click chemistry with terminal alkynes or strained cyclooctynes.

Fluorescein-PEG12-amine, TFA salt is a PEG linker containing an amine and a fluorescein dye. Primary amines readily form amides with carboxylic acids in the presence of reagents such as HATU or EDC while fluorescein is a fluorophore is a near-UV/Vis spectrum dye that can be used for in vivo fluorescence assays such as FRET.