4,4´-Diamino-3,3´-dimethyldiphenyl methane, certified, 0.1g Back Catalog number: C12194800 Availability: In the manufacturer's stock Price on request - + Recommended 9282.28-25MG Sildenafil citrate,neat,neat,25mg Price on request 50173 Anion Mix #2 Price on request 3146.20-K-IO Eicosanoic acid (Arachidic), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 506-30-9 Price on request