1'-Methyl-3-phenylspiro(isobenzofuran-1(3H),4'-piperidine) 1'-oxide hydrate 1,3-Dihydro-1'-methyl-3-phenylspiro(isobenzofuran-1,4'-piperidine)-1'-oxide hydrate 61715-26-2 Spiro(isobenzofuran-1(3H),4'-piperidine), 1'-methyl-3-phenyl-, 1'-oxide, hydrate