4,4'-Iminodiphenol hydrochloride;Paracetamol EP Impurity M;Paracetamol Impurity 13(Paracetamol EP Impurity M);Acetaminophen Impurity 11 HCl (4,4'-Iminodiphenol HCl);Acetaminophen Impurity M(HCl);Paracetamol EP Impurity M HCl;Acetaminophen EP Impurity M HCL;Acetaminophen Impurity 24