Benzoylecgonine is a major metabolite of cocaine, formed when the body breaks down the drug. It is often used in drug testing to detect recent cocaine use, as it can remain in the body for several days after consumption. This compound is typically found in urine and can be identified through various analytical methods, such as gas chromatography and mass spectrometry. The presence of benzoylecgonine in a sample indicates that cocaine was ingested, helping authorities and medical professionals assess substance use.