Copper (Cu) Back Catalog number: 50743 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50093 Hexavalent Chromium (Cr +6) Price on request PF4OPEA Perfluoro-4-oxapentanoic acid (PFMPA), 1.2ml x 50ug/ml, methanol Price on request 11914.10-K-ME Hordenine,1000 µg/mL,MeOH,1mL, Price on request