Astra blue in tartaric acid 2% is a staining solution widely used in histology and cytology. Astrablau is a synthetic basic dye known for its ability to stain acidic cellular components, particularly acidic mucopolysaccharides and collagen fibers.

In a 2% solution with tartaric acid, a mild organic acid agent, Astrablau increases the selectivity and precision of staining. Tartaric acid promotes the binding of Astrablau to the acidic cellular components and improves the contrast and color depth of the dyeing. This results in improved visual discrimination between different cell and tissue structures.

Staining with Astrablau in Tartaric Acid 2% is mainly used in histology for the examination of tissue sections and in cytology for the examination of cell preparations. It allows visualization and analysis of tissue components such as connective tissue, muscle tissue and nervous tissue. In particular, it is useful for visualizing and examining collagen fibers and acid mucopolysaccharides, which play an important role in the structure and function of many tissues.