Heliotrine, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 303-33-3

Vardenafil dihydrochloride, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 224789-15-5

DNPH - Mix 4, 100µg/ml in Acetonitrile, 5ml

EPA Method 524.2 - Additional Analytes