4,4´-Diamino-3,3´-dimethyldiphenyl methane, certified, 0.1g Back Catalog number: C12194800 Availability: In the manufacturer's stock Price on request - + Recommended 2126.12-10-IOX10 Arochlor 1242 , 10µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 53469-21-9 Price on request 93111 Aroclor 1254 Price on request 95982 BTEX + Styrene Standard Price on request