3730229 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3730229 > 2 > ChemIDplus > 007025743 > 1,3-Dimethylthymine cyclobutane dimer 1,3-Dtcbd 20212-70-8 7025-74-3 Cyclobuta(1,2-d:4,3-d')dipyrimidine-2,4,5,7(3H,6H)-tetrone, hexahydro-1,3,4a,4b,6,8-hexamethyl-, (4aalpha,4balpha,8aalpha,8balpha)- > 20212-70-8 7025-74-3 > 007025743 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=007025743 $$$$