3745373 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3745373 > 2 > ChemIDplus > 056645659 > 56645-65-9 Calcitonin precursor polyprotein Calcitonin, pro- Procalcitonin > 56645-65-9 > 056645659 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=056645659 $$$$