Heptenofos,100 µg/mL,MeOH,1mL,

Pentachlorobenzene, 100 µg/ml, Acetonitrile, 1ml

4-Hydroxyisophthalic acid (4-Hydroxybenzene-1,3-dicarboxylic acid), 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 636-46-4

Progesterone