PCB No. 31, certified, 25mg Back Catalog number: C20003100 Availability: In the manufacturer's stock Price on request - + Recommended 683351 3-Hydroxybenzoic acid, 1000mg Price on request 50743 Copper (Cu) Price on request 92071 Phenanthrene, 100µg/ml in Acetonitrile, 1ml Price on request