3810874 -OEChem-02060822582D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3810874 > 2 > ChemIDplus > 121543315 > 121543-31-5 Collagens, osseins EINECS 310-156-4 > 121543-31-5 > 121543315 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=121543315 $$$$