3,3'-Dimethylbenzidine, 100mg Back Catalog number: 676729 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 92577 Volatile Standard Price on request 72136 N-Nitrosodi-n-propylamine-d14 Price on request N-13091-1G Pristane , 1g Price on request