Amido Black Dilithium salt is a chemical compound frequently used in forensic laboratories for staining proteins and identifying bloodstains. Synonyms for this complex compound include AB, Amido Black, and AB dilithium salt. Additionally, it is sometimes referred to as Amido Black 10B or AB10B. This dark blue dye possesses excellent sensitivity, displaying visible results even in minute protein concentrations. The application of AB in forensic science plays a vital role in crime scene investigations, helping detect concealed blood evidence crucial for solving criminal cases. The various synonyms used for Amido Black Dilithium salt mainly serve to simplify communication within the field, ensuring accurate identification of this indispensable compound.