744787 -OEChem-02060822472D 1 0 0 0 0 0 0 0 0999 V2000 2.4938 2.2988 0.0000 Cf 2 0 0 0 0 0 0 0 0 0 0 0 M ISO 1 1 253 M END > 0 > 0 > 744787 > 3 > ChemIDplus > 015720293 > 15720-29-3 253Cf Californium, isotope of mass 253 Californium-253 > 15720-29-3 > 015720293 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=015720293 > 167345 1 $$$$