PCB No. 31, certified, 25mg Back Catalog number: C20003100 Availability: In the manufacturer's stock Price on request - + Recommended 71846 Procymidone, 1000µg/ml in Acetone, 1ml Price on request 677653 D6-alpha-HCH, 100 µg/ml, Cyclohexane, 1ml Price on request 59888 Sodium (Na) Price on request