EPA Method 552.2 - Surrogate Standard Back Catalog number: 30109 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1582.11-100MG Proguanil hydrochloride, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 637-32-1 Price on request 684530 D3-Ipronidazole, 100 µg/ml, Methanol, 1ml Price on request 675778 Nuarimol, 100 µg/ml, Ethyl acetate, 5ml Price on request