4-Aminobenzenesulfonic acid, 250mg

Sodium dodecylbenzenesulfonate, mixture of branched C10-C14, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 25155-30-0

EPA Method 525 Internals & Surrogates

Atrazine, 100 µg/ml, Ethyl acetate, 5ml