691608 -OEChem-02060822462D 1 0 0 0 0 0 0 0 0999 V2000 5.9792 -7.5667 0.0000 Cs 2 4 0 0 0 0 0 0 0 0 0 0 M RAD 1 1 2 M ISO 1 1 135 M END > 0 > 0 > 691608 > 3 > ChemIDplus > 015726304 > 135Cs 15726-30-4 Cesium, isotope of mass 135 Cesium-135 > 15726-30-4 > 015726304 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=015726304 > 6335805 1 $$$$