WHO PCB Extraction Standard, 100pg/µl in nonane, 1,2ml

7,9-Di-tert-butyl-1-oxaspiro[4.5]deca-6,9-diene-2,8-dione

Perylene-d12, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 1520-96-3

2-Nitrofluorene, 100µg/ml in Toluene, 1ml