EPA Method 609 - Analytes Back Catalog number: 40014 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C12725510 2,5-Dimethylbenzaldehyd-2,4-dinitrophenylhydrazone, 100mg Price on request 8421.4-5MG Desphenyl chloridazon, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. Price on request MA9069 5000 µS/cm calibration solution (230mL) Price on request