3,4-Dimethylpyridine,neat,neat,100mg,

2,2',3,4',5,6,6'-Heptachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Tebuconazole, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 107534-96-3

PCB 195, 5mg