Copper AA Standard (Cu) Back Catalog number: 50462 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11186.8-10MG Caffeine-d9 (1,3,7-trimethyl-d9),neat,neat,10mg Price on request 1534.20-K-TX5 Perylene-d12, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 1520-96-3 Price on request 56126 Iron (Fe) Price on request