3733983 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3733983 > 2 > ChemIDplus > 014017551 > 14017-55-1 EINECS 237-840-4 Erbium(3+) perchlorate > 14017-55-1 > 014017551 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=014017551 $$$$