4,4'-Diaminodiphenyl sulfide, 250mg Back Catalog number: 676773 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 687325 Atraton, 100µg/ml in Acetonitrile, 5ml Price on request 677509 D10-Carbamazepine, 100 µg/ml, Methanol, 1ml Price on request 677604 2-Quinoxalinecarboxylic acid, 100mg Price on request