Group II Elements Starter Kit Back Catalog number: 52255 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C17923900 Vitamin D2, 250mg Price on request 678309 2-Methylbutane, 1ml Price on request 679896 2,4-Dichlorophenol, 100 µg/ml, Acetonitrile, 5ml Price on request