Chrysene-d12, 1000µg/ml in Methylen Chloride, 1ml

Menthol, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 89-78-1

N-Nitrosodiisopropylamine,100 µg/mL,MeOH,1mL,

D5-threo-Chloramphenicol, 100µg/ml, Acetonitrile, 1ml