(-)-Norgestrel, 100mg Back Catalog number: 676652 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 680274 D-Xylose, 250mg Price on request 2234.17-050-AN Aflatoxin B2, 0.5 µg/ml, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 7220-81-7 Price on request 57014 Silicon (Si), 1000µg/ml in 2%-HNO3/Water, 100ml Price on request