Ethoprop, 1000µg/ml in MeOH, 1ml

3-Methyl-4-nitrophenol, 100 µg/ml, Methanol, 5ml

d4 C29 alpha alpha alpha (20R)-Ethylcholestane, 10µg/mL in Isooctane, 1ml

Naphtho[2,3-a]pyrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 196-42-9