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 71682 n-Butyl sulfide Price on request 681300 Bis(2-ethylhexyl) adipate, 1000 µg/ml, Methanol, Price on request 59937 Metals Mix #1 Price on request