4,4'-DDD, 100 µg/ml, Methanol, 1ml Back Catalog number: 679457 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended M-8315-R2-DNPH Carbonyl DNPH Derivative Mix, 100µg/ml in AcN, 1ml Price on request 83610 Isovaleraldehyde-DNPH, 100µg/ml in Acetonitrile, 1ml Price on request 71980 1,trans-2,cis-4-Trimethylcyclohexane Price on request