3,3'-Dimethylbenzidine, 100mg Back Catalog number: 676729 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended MEL Melamine, 1.2ml x 100ug/ml, water Price on request 673558 Dimethomorph, 100 µg/ml, Ethyl acetate, 5ml Price on request 70385 Ethylenethiourea, 1000µg/ml in Ethylacetate, 1ml Price on request