Stearic acid butyl ester

EPA Method 502/524 High Conc VOC Mix #7

2,5-Dimethylfuran, 100µg/mL, Solvent-, Unit 1mL, # of units-1, Cas.no. 625-86-5

Perfluoro-n-pentanoic acid, 1.2ml x 50ug/ml, methanol