dipea

Biotinyl-NH-PEG3-C3-amido-C3-COOH (DIPEA) is a polyethylene glycol (PEG)-based PROTAC linker used in the synthesis of proteolysis targeting chimeras (PROTACs).

Cy5.5-SE (Cyanine5.5 NHS ester) DIPEA, a cyanine (CY) dye, comprises two nitrogen atoms linked by an odd number of methyl units. Characterized by long wavelength, tunable absorption and emission, high extinction coefficient, and good water solubility, alongside relatively straightforward synthesis [1], CY dyes are frequently utilized for labeling proteins, antibodies, and small molecular compounds. Their application in protein antibody labeling is achieved through a simple mixing reaction, providing a method of notable reference significance [2]. Storage instructions include protection from light.

HATU is a reagent used in peptide coupling chemistry to generate an active ester from a carboxylic acid. HATU is used along with Hünig's base (N,N-diisopropylethylamine, DIPEA) to form amide bonds.