3733088 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3733088 > 2 > ChemIDplus > 012439780 > 12439-78-0 Diytterbium dioxide sulphide EINECS 235-668-4 Ytterbium oxide sulfide (Yb2O2S) > 12439-78-0 > 012439780 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=012439780 $$$$