141912-59-6 4-Methyl-3-hydroxyanthraniloylpentapetidelactone L-Valine, N-(N-(1-(N-(N-(2-amino-3-hydroxy-4-methylbenzoyl)-L-threonyl)-D-valyl)-5-methylprolyl)-N-methylglycyl)-N-methyl-, xi-lactone Protactin