Hexavalent Chromium (Cr 6+) Back Catalog number: 54161 Availability: In the manufacturer's stock Price on request - + Recommended 63149 2,2',3,4',5',6-Hexachlorobiphenyl (149) Price on request 1579.4-1G Metformin hydrochloride, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 1115-70-4 Price on request 9930.24-50UG 10:2 Di-PAPS-d4, neat, Solvent-neat, Unit ca. 50 µg, # of units-1, Cas.no. Price on request