Antipyrine, 10.0 µg/ml, Acetonitrile, 10ml

C21 Tricyclic terpane X, neat, Solvent-neat, Unit ca. 5µg, # of units-1, Cas.no.

EPA Method 8021B Internal Standard

Nitroguanidine, 100 µg/ml, Acetonitrile, 1ml