Description_x000D_ General description_x000D_ Hematoxylin is a basophilic dye extracted from the tree Heamatoxylum campechianum. It specifically binds to acidic compounds and thus is useful for staining cell nuclei which contain acidic substances: DNA and RNA. Hematoxylin, when oxidized forms hematein, which has thick pale blue purple colour. Hematoxylin is often used along with eosin, in histological study under light microscope._x000D_ Application_x000D_ Hematoxylin has been used:_x000D_ • to visualize anatomical features and to detect nucleus locus coeruleus adjacent to the periaqueductal gray region in brainstem samples_x000D_ • as a nuclear counterstain to visualize the nucleus, adipocytes were counterstained with a hematoxylin reagent_x000D_ • to stain lung tissue for histological analysis_x000D_ Packaging_x000D_ 25, 100 g in glass bottle_x000D_ Suitability_x000D_ Certified for use in Weigert′s iron hematoxylin, Mayer′s hemalum, Harris hemalum and in Heidenhain′s technique