4,4'-DDD, 100 µg/ml, Toluene, 5ml Back Catalog number: 675989 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 92704 EPA Method 525Mix #2 Price on request 50401 Nitrate as (NO3-) Price on request 3785.5-K-IO 2-Methylpyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. 109-08-0 Price on request