4,4´-Diamino-3,3´-dimethyldiphenyl methane, certified, 0.1g Back Catalog number: C12194800 Availability: In the manufacturer's stock Price on request - + Recommended 19598 EPA Method 602 Purgeable Aromatics Price on request 680504 Thenylchlor, 10mg Price on request P-831S-CN Iprovalicarb, 100µg/ml in Acetonitrile, 1ml Price on request