4,4'-Diaminodiphenyl sulfide, 250mg Back Catalog number: 676773 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 681776 Monobenzyl Phthalate, 100mg Price on request 60248 Aroclor 1248 in Transformer Oil Price on request 53100 ICP-MS Verification Standard #1 Price on request