Internal standard 3, 2000g/ml in MeOH, 1ml

2,2,4,4,5,5,7,7-Octamethyloctane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 5171-85-7

Benzo[a]pentacene, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 239-98-5

Ethylene thiourea, 100 µg/ml, Acetonitrile, 1ml