Salbutamol USP RC F;Salbutamol Impurity R;Albuterol Impurity 31;Salbutamol Ethyl Ether;Albuterol USP Related Compound F;Salbutamol USP related Compound F;Albuterol USP Related Compound F HCl;Albuterol Related Compound F (Salbutamol Ethyl Ether);Salbutamol Ethyl Ether (Albuterol Related Compound F);Albuterol USP Related Compound F (Salbutamol Ethyl Ether)