Merck, G5882-100ML, Glutaraldehyde solution

Glutaraldehyde (Glutaric dialdehyde, Pentane-1,5-dial) is an aliphatic dialdehyde widely utilized as a versatile biochemical reagent. Glutaraldehyde solutions contain both monomers and polymers with the difference in their fixation properties. Its applications include serving as a protein crosslinker, facilitating enzyme immobilization in microscopy, histochemistry, and cytochemistry. This compound acts as an amine-reactive homobifunctional crosslinker and a cell fixative before SDS-PAGE, staining, or electron microscopy, making it suitable for diverse morphological studies. Glutaraldehyde efficiently crosslinks amine and hydrazine derivatives to proteins and other amine-containing polymers. Notably, it has been used in certain reactions to directly couple biotin hydrazides to nucleic acids, suggesting potential applications in conjugating fluorescent hydrazides and hydroxylamines to DNA. In histology studies, Glutaraldehyde is employed to preserve tissue sections, preparing them for closer examination.