525.2 Perfomance Check Solution

(4R)-(-)-2-Thioxo-4-thiazolidinecarboxylic acid, 5

17-Hydroxypregnenolone, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 387-79-1

iso-Chloridazon, 100 µg/ml, Acetonitrile, 1ml