Sulfamethazine, 100 µg/ml, Methanol, 1ml

2-Methoxy-5-methylaniline, certified, 0.25g

Cimetidine guanidine derivative (N-Methyl-N'-[2-[[(5-methyl-H-imidazol-4-yl)-methyl]-thiol]-ethyl]-guanidine dihydrochloride), neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 59660-24-1

EPA Method 8270A - Analytes Mix #8