Isothiocyanate couples well with a reactive amino group in a protein and peptide chain under mild conditions. Isothiocyanatofluorescein is widely used in labeling different biomolecules such as immunoglobulins, lectins, proteins, peptides, nucleic acids, oligo-and polysaccharides. The derivatives of FITC are also extensively utilized in biological analyses [1]. Fluorescein isothiocyanate (FITC) is the most widely used […]
The simplest epoxide, ethylene oxide (or oxirane itself), can be produced on the tonne scale by the direct oxidation of ethene by oxygen at high temperature over a silver catalyst. These conditions are hardly suitable for general lab use, and the most commonly used epoxidizing agents are peroxy-carboxylic acids. Peroxy-acids (or peracids) have an extra […]
5-Aminofluorescein and 6-aminofluorescein are commonly used in elucidation of protein and membrane structures, analysis of nucleic acids and nucleotides, lipid transport and metabolism due to the convenient coupling of the amino group with an activated carboxylic group of the target molecules. [1] Fluorophores A fluorophore (or fluorochrome) is a fluorescent chemical compound that can re-emit […]
The six-spined spruce bark beetle, Pityogenes chalcographus (in Germany called Kupferstecher), is a serious pest in Europe of Norway spruce (Picea abies), especially the younger trees. Both sexes of these tiny beetles (2 mm long) aggregate on host trees in response to a pheromone. [1] Chalcogran, 2-ethyl-1,6-dioxaspiro[4.4]nonane, is a principal component of the aggregation pheromone […]
