682501 -OEChem-02060822462D 1 0 0 0 0 0 0 0 0999 V2000 2.1125 -0.7042 0.0000 C 1 0 0 0 0 0 0 0 0 0 0 0 M ISO 1 1 13 M END > 0 > 0 > 682501 > 3 > ChemIDplus > 014762744 > 13C 14762-74-4 Carbon, isotope of mass 13 Carbon-13 Carbon-13 atom Carbon-13C > 14762-74-4 > 014762744 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=014762744 > 105026 1 $$$$