(1-alpha)-1,2-Dihydro-12-hydroxysenecionan-11,16-dione 480-78-4 66641-38-1 EINECS 207-558-6 Platiphillin Platiphyllin Platyphylline Senecionan-11,16-dione, 1,2-dihydro-12-hydroxy-, (1-alpha)-