3,3'-Dimethylbenzidine, 100mg Back Catalog number: C12726000 Manufacturer: DR. EHRENSTORFER Availability: In the manufacturer's stock Price on request - + Recommended S-4143-025-B Low level Nitrogen & Sulfur Calibration Set Units: 1x1mL ampoules or 10mL screwcapped bottle Nitrogen introduced using Aniline / Sulfur introduced using di-n-Butyl Sulfide Catalogue No. Concentration Matrix: Benzene mg/kg (ppm) S-4143-0 Price on request 679828 D9-Trimethoprim, 10mg Price on request 0234.48-200-T Dicoronylene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 98570-53-7 Price on request