Xinafoic acid is not a solvent for salmeterol.
Johnson
M
M
D000318:Adrenergic beta-Agonists / Q000737:chemistry*; D000420:Albuterol / Q000031:analogs & derivatives* / Q000737:chemistry; D001993:Bronchodilator Agents / Q000737:chemistry*; D006801:Humans; D014677:Pharmaceutical Vehicles; D000068299:Salmeterol Xinafoate; D012997:Solvents
D000318:Adrenergic beta-Agonists; D001993:Bronchodilator Agents; D014677:Pharmaceutical Vehicles; D012997:Solvents; D000068299:Salmeterol Xinafoate; D000420:Albuterol