SPIRO(ISOBENZOFURAN-1(3H),9'(9H)-XANTHEN)-3-ONE,4,5,6,7-TETRACHLORO-3',6'-DIHYDROXY-2',4',5',7'-TETRAIODO-

SPIRO(ISOBENZOFURAN-1(3H),9'(9H)-XANTHEN)-3-ONE,4,5,6,7-TETRACHLORO-3',6'-DIHYDROXY-2',4',5',7'-TETRAIODO- · CAS 152-74-9