Haematoxylin Staining Powder 5G Qualigens

About Haematoxylin Staining Powder 5G Qualigens

• Purpose: To stain the nuclei of cells. 
• Origin: Extracted from the heartwood of the logwood tree (Haematoxylum campechianum). 
• Color: Deep blue-purple. 
• Form: A powder. 
• Application: Used in histology and cytology to visualize cell structures, particularly the nucleus (DNA). 
• Mechanism: When combined with a positively charged metal salt (a mordant), such as aluminum salts, it forms a complex called a "hematoxylin lake" that selectively binds to the negatively charged DNA in the nucleus. 

• C.I. 75290: Its Chemical Identification Number, also known as natural black 1. 
• H&E Staining: A crucial component of the Hematoxylin and Eosin stain, one of the most frequently used staining procedures in histology. 
• Other Uses: A component of the Papanicolaou (PAP) stain for cytology specimens. 
• Clinical Use: Some hematoxylin products are registered for clinical diagnostic purposes.