Baquiloprim-d6 is the deuterated form of baquiloprim, an antibacterial agent used primarily in veterinary medicine to treat infections in livestock and poultry. As an internal standard in mass spectrometry, it ensures accurate quantification of baquiloprim in biological samples. This facilitates research into the pharmacokinetics and metabolism of the compound in animals, supporting optimal dosing and therapeutic efficacy. Additionally, it aids in monitoring residue levels in animal products to comply with safety regulations.