2,4-DB-methyl ester, 250mg Back Catalog number: C11982000 Manufacturer: DR. EHRENSTORFER Availability: In the manufacturer's stock Price on request - + Recommended 676730 4,4'-Diamino-3,3'-dimethyldiphenylmethane, 100mg Price on request DF-IS-B Mass-Labelled PCDD/PCDF Internal Standard Solution, 1.2ml, nonane Price on request EPA-8290HRCC1-5 EPA Method 8290 Calibration Kit, 5 ampoules, nonane Price on request