4,4'-Diaminodiphenyl sulfide, 250mg Back Catalog number: 676773 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended PCB-IS-C Mass-Labelled PCB Syringe Spike Solution, 1.2ml, nonane Price on request 59139A Multi-Element ICP Standard Price on request 51053 ASTM D1387-90 Column Resolution Test Standard Price on request