Coumaphos, 1000µg/ml in MeOH, 1ml

Ramipril, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 87333-19-5

Isocaffeine (1,3,9-Trimethylxanthine), 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 519-32-4

EPA Method 604 - Phenols Standard