Bafilomycin B1 belongs to the macrolides and analogues, a class of phenylpropanoids and polyketides within the organic compounds. With an average molecular weight of 816.00 g/mol, Bafilomycin B1 is a heavy molecule. It has the chemical formula C44H65N1O13. This compound is found in or released from healthcare, pharmaceuticals, and veterinary products specifically used as antibiotics. Recorded exposure routes include inhalation and oral administration. In terms of biological activity, Bafilomycin B1 acts as an inhibitor of V-type proton ATPase catalytic subunit A (ATP6V1A).