2340 -OEChem-04030813132D 0 0 0 0 0 0 0 0 0999 V2000 M END > 2340 > 1 > BioCyc > CPD-21 > TYPES - Cations > CPD-21 Tl+ thallium ion > CPD-21 > http://biocyc.org > http://biocyc.org/META/NEW-IMAGE?type=COMPOUND&object=CPD%2D21 $$$$