142785-14-6 Bis(di-n-butyl(4-aminosalicylate)tin)oxide NSC 628561 NSC-628561 Tin, bis(mu-(4-amino-2-hydroxybenzoato-O1:O1')bis(4-amino-2-hydroxybenzoato-O1)octabutyldi-mu3-oxotetra-, stereoisomer