2,5-Diphenyl-1,6,6a-trithiapentalene, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 103-90-5

GC-IRMS Standards (C25 (?13C: -28.21); C30 (?13C: -28.60); C36 (?13C: -26.15)), 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no.

4-Chlorophenoxyacetic acid, 100 µg/ml, Acetonitri

EPA Method 502/524 High Conc VOC Mix #2