What is the final color indicative of a positive result when using Fast Blue B with marijuana?

A positive result when using Fast Blue B with marijuana is indicated by the color pink. Fast Blue B is a reagent used in the chemical testing of substances such as cannabinoids. The process involves the reaction of Fast Blue B with certain constituents found in marijuana, and a positive identification is characterized by the development of a pink color. This color change occurs as a result of the specific interaction between Fast Blue B and the compounds present in the sample, confirming the presence of the targeted substances. Understanding the color change is crucial for analysts in drug testing and identification processes, emphasizing the importance of accurately interpreting test results.