Heptachlor, 100 µg/ml, Methanol, 1ml

TOC Calibration Standard (C)

1,4-Benzoquinone, 1000mg

2-tert-Butyl-4,6-dimethylphenol, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 1879-09-0