4,4'-DDD, 100 µg/ml, Methanol, 1ml Back Catalog number: 679457 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 50683 Nitrite Single as (NO2-) Price on request 10237.18-100-ME Octyl methoxycinnamate, 100µg/ml in MeOH, 1ml Price on request 58052 Tellurium (Te) Price on request