4,4'-Diaminodiphenyl sulfide, 250mg Back Catalog number: 676773 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 1127.17-100-T 3-Nitrobenzanthrone, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 17117-34-9 Price on request 679903 Epichlorohydrin, 100 µg/ml, Acetone, 1ml Price on request 675340 Metrafenone, 100 µg/ml, Acetonitrile, 5ml Price on request