Biotin-DADOO 是一个生物素酰化试剂，可用于合成生物素-雌二醇共轭化合物，从而通过酶免疫测定法测定血浆雌二醇的浓度。 Biotin-PEG2-amine is PEG derivative containing a biotin group and a terminal primary amine group. The amine group can be coupled to carboxyl groups or 5'phosphate groups to form stable amide bonds. The hydrophilic PEG spacer increases solubility in aqueous media of the molecules conjugated to the biotin compound. It also helps to minimize steric hindrance involved with the binding to avidin molecules. Product description： Biotin-DADOO is a biotinylation reagent, which can be used to synthesize a biotin-estradiol conjugate (i.e., biotin-DADOO-estradiol) to develop a direct, broad range enzyme immunoassay to measure plasma estradiol concentrations.