VITROS Chemistry Products HPT Reagent. An in vitro diagnostic medical device (IVD)Product code: 6802214Lot number: 1533-19-2133 (Assay identifier 1533, GEN 19, Lot 2133); Expiration date: 20 Nov 2012Lot Number: 1533-20-2314 (Assay identifier 1533, GEN 20, Lot 2314); Expiration date: 11 Feb 2012