Picric acid, 100 µg/ml, Acetonitrile, 10ml Back Catalog number: 679577 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 31070 EPA Method 502/524 Surrogate Standard #3, 2000µg/ml in MeOH, 1ml Price on request 682254 2,4,6-Tribromoaniline, 1000mg Price on request 4H187 2,2',3,4',5,5',6-Heptachloro-4-biphenylol, 1.2ml x 50ug/ml, nonane Price on request