I noticed you asked a question about the structure of Pirbuterol. I believe this is the correct structure: https://www.chemspider.com/Chemical-Structure.4679.html
The structure on DailyMed is different since it is the acetate salt: http://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?id=678 --ChemSpiderMan (talk) 04:49, 23 September 2008 (UTC)
Thank you both for providing information on the chemical structure of Pirbuterol. Jcfried (talk) 02:48, 30 November 2008 (UTC)