A hydrate of 5-4-2-(N-methyl-N-(2-pyridyl)amino)ethoxybenzylthiazolidine-2,4-dione, maleic acid salt, characterised in that it: (i) comprises water in the range of from 0.3 to 0.6 molar equivalents; and (ii) provides an infra red spectrum containing peaks at 1757, 1331, 1290, 1211 and 767 cm1; and/or...http://www.google.com/patents/US20030139604?utm_source=gb-gplus-sharePatent US20030139604 - Substituted thiazolidinedione derivative, process for its preparation and its pharmaceutical use
