Copper (Cu) Back Catalog number: 57729 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2928.7-100-IO 3,5-Dibromo-4-hydroxybenzonitrile-2,6-d2, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request 9360.19-100-IO iso-Butyl benzyl phthalate (2-Methylpropyl benzyl phthalate), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 72170-45-7 Price on request 1579.4-250MG Metformin hydrochloride, neat, Solvent-neat, Unit 250mg, # of units-1, Cas.no. 1115-70-4 Price on request