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 52420 EPA Method 300.0 Anions Price on request 679294 Isopropylparaben, 25mg Price on request 96075 Aldehyde Mix Price on request